Characiformes: An order of fresh water fish with 18 families and over 1600 species. The order includes CHARACINS, hatchetfish, piranhas, and TETRAS.Characidae: A family of fresh water fish in the order CHARACIFORMES, which includes the Tetras.Rivers: Large natural streams of FRESH WATER formed by converging tributaries and which empty into a body of water (lake or ocean).Gastrointestinal Contents: The contents included in all or any segment of the GASTROINTESTINAL TRACT.BrazilFresh Water: Water containing no significant amounts of salts, such as water from RIVERS and LAKES.Seasons: Divisions of the year according to some regularly recurrent phenomena usually astronomical or climatic. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)Phylogeny: The relationships of groups of organisms as reflected by their genetic makeup.Fishes: A group of cold-blooded, aquatic vertebrates having gills, fins, a cartilaginous or bony endoskeleton, and elongated bodies covered with scales.Dimethoate: An organothiophosphorus cholinesterase inhibitor that is used as a systemic and contact insecticide.Microsatellite Repeats: A variety of simple repeat sequences that are distributed throughout the GENOME. They are characterized by a short repeat unit of 2-8 basepairs that is repeated up to 100 times. They are also known as short tandem repeats (STRs).Workers' Compensation: Insurance coverage providing compensation and medical benefits to individuals because of work-connected injuries or disease.Animal Fins: Membranous appendage of fish and other aquatic organisms used for locomotion or balance.Jaw: Bony structure of the mouth that holds the teeth. It consists of the MANDIBLE and the MAXILLA.Animal Structures: Organs and other anatomical structures of non-human vertebrate and invertebrate animals.ArgentinaPhilippinesTrinidad and Tobago: An independent state in the Lesser Antilles in the West Indies, north of Venezuela, comprising the islands of Trinidad and Tobago. Its capital is Port of Spain. Both islands were discovered by Columbus in 1498. The Spanish, English, Dutch, and French figure in their history over four centuries. Trinidad and Tobago united in 1898 and were made part of the British colony of Trinidad and Tobago in 1899. The colony became an independent state in 1962. Trinidad was so named by Columbus either because he arrived on Trinity Sunday or because three mountain peaks suggested the Holy Trinity. Tobago was given the name by Columbus from the Haitian tambaku, pipe, from the natives' habit of smoking tobacco leaves. (Webster's New Geographical Dictionary, 1988, p1228, 1216 & Room, Brewer's Dictionary of Names, 1992, p555, 547)Asia, Central: The geographical area of Asia comprising KAZAKHSTAN; KYRGYZSTAN; TAJIKISTAN; TURKMENISTAN; and UZBEKISTAN. The desert region of Kara Kum (Qara Qum) is largely in Turkmenistan and the desert region of Kyzyl Kum (Kizil Kum or Qizil Qum), is in Uzbekistan and Kazakhstan. (From Webster's New Geographical Dictionary, 1988, p233, 590, 636)Gardening: Cultivation of PLANTS; (FRUIT; VEGETABLES; MEDICINAL HERBS) on small plots of ground or in containers.Goldfish: Common name for Carassius auratus, a type of carp (CARPS).Camallanina: A suborder of nematodes characterized by larvae lacking cephalic hooks and a tail that is generally long and pointed.Anomura: An infraorder of CRUSTACEA, in the order DECAPODA comprising the hermit crabs and characterized by a small fifth pair of legs.Floods: Sudden onset water phenomena with different speed of occurrence. These include flash floods, seasonal river floods, and coastal floods, associated with CYCLONIC STORMS; TIDALWAVES; and storm surges.Geological Phenomena: The inanimate matter of Earth, the structures and properties of this matter, and the processes that affect it.Tigers: The species Panthera tigris, a large feline inhabiting Asia. Several subspecies exist including the Siberian tiger and Sumatran tiger.Lakes: Inland bodies of still or slowly moving FRESH WATER or salt water, larger than a pond, and supplied by RIVERS and streams.Aedes: A genus of mosquitoes (CULICIDAE) frequently found in tropical and subtropical regions. YELLOW FEVER and DENGUE are two of the diseases that can be transmitted by species of this genus.Caves: Geological formations consisting of underground enclosures with access from the surface.Cypriniformes: An order of fish with 26 families and over 3,000 species. This order includes the families CYPRINIDAE (minnows and CARPS), Cobitidae (loaches), and Catostomidae (suckers).Lateral Line System: Aquatic vertebrate sensory system in fish and amphibians. It is composed of sense organs (canal organs and pit organs) containing neuromasts (MECHANORECEPTORS) that detect water displacement caused by moving objects.Methyl n-Butyl Ketone: An industrial solvent which causes nervous system degeneration. MBK is an acronym often used to refer to it.Caenorhabditis elegans: A species of nematode that is widely used in biological, biochemical, and genetic studies.Caenorhabditis elegans Proteins: Proteins from the nematode species CAENORHABDITIS ELEGANS. The proteins from this species are the subject of scientific interest in the area of multicellular organism MORPHOGENESIS.Longevity: The normal length of time of an organism's life.Gene Expression Profiling: The determination of the pattern of genes expressed at the level of GENETIC TRANSCRIPTION, under specific circumstances or in a specific cell.Gills: Paired respiratory organs of fishes and some amphibians that are analogous to lungs. They are richly supplied with blood vessels by which oxygen and carbon dioxide are exchanged directly with the environment.Caloric Restriction: Reduction in caloric intake without reduction in adequate nutrition. In experimental animals, caloric restriction has been shown to extend lifespan and enhance other physiological variables.Coitus Interruptus: A contraceptive method whereby coitus is purposely interrupted in order to prevent EJACULATION of SEMEN into the VAGINA.Internet: A loose confederation of computer communication networks around the world. The networks that make up the Internet are connected through several backbone networks. The Internet grew out of the US Government ARPAnet project and was designed to facilitate information exchange.Click Chemistry: Organic chemistry methodology that mimics the modular nature of various biosynthetic processes. It uses highly reliable and selective reactions designed to "click" i.e., rapidly join small modular units together in high yield, without offensive byproducts. In combination with COMBINATORIAL CHEMISTRY TECHNIQUES, it is used for the synthesis of new compounds and combinatorial libraries.User-Computer Interface: The portion of an interactive computer program that issues messages to and receives commands from a user.Patient Satisfaction: The degree to which the individual regards the health care service or product or the manner in which it is delivered by the provider as useful, effective, or beneficial.Fagopyrum: A plant genus of the family POLYGONACEAE that is used as an EDIBLE GRAIN. Although the seeds are used as cereal, the plant is not one of the cereal grasses (POACEAE).Medical Staff: Professional medical personnel who provide care to patients in an organized facility, institution or agency.Central AmericaCestoda: A subclass of segmented worms comprising the tapeworms.Dielectric Spectroscopy: A technique of measuring the dielectric properties of materials, which vary over a range of frequencies depending on the physical properties of the material. The technique involves measuring, over a range of frequencies, ELECTRICAL IMPEDANCE and phase shift of an electric field as it passes through the material.Cichlids: Common name for perch-like fish of the family Cichlidae, belonging to the suborder Labroidei, order PERCIFORMES.Bays: An area of water mostly surrounded by land, usually smaller than a gulf, and affording access to the sea.South AmericaDNA Barcoding, Taxonomic: Techniques for standardizing and expediting taxonomic identification or classification of organisms that are based on deciphering the sequence of one or a few regions of DNA known as the "DNA barcode".

Extremely long-distance seed dispersal by an overfished Amazonian frugivore. (1/24)

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Cellular responses of Prochilodus lineatus hepatocytes after cylindrospermopsin exposure. (2/24)

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Effects of atrazine on the gill cells and ionic balance in a neotropical fish, Prochilodus lineatus. (3/24)

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Morphological evidence of neurotoxicity in retina after methylmercury exposure. (4/24)

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Effects of extenders, cryoprotectants and freezing methods on sperm quality of the threatened Brazilian freshwater fish pirapitinga-do-sul Brycon opalinus (Characiformes). (5/24)

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Sperm cryopreservation affects postthaw motility, but not embryogenesis or larval growth in the Brazilian fish Brycon insignis (Characiformes). (6/24)

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Nematodes in Hoplerytrinus unitaeniatus, Hoplias malabaricus and Pygocentrus nattereri (pisces characiformes) in Marajo Island, Brazil. (7/24)

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The administration of exogenous prostaglandin may improve ovulation in pacu (Piaractus mesopotamicus). (8/24)

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*Characiformes

... forms a group known as Characiphysi with Siluriformes and Gymnotiformes. Characiformes is the sister group to the ... Characiformes is an order of ray-finned fish, comprising the characins and their allies. Grouped in 18 recognized families, ... Characiformes form part of a series called Otophysi within the superorder Ostariophysi. Otophysi contains three other orders, ... Superficially, the Characiformes somewhat resemble their relatives of the order Cypriniformes, but have a small fleshy adipose ...

*Flame tetra

1. Characiformes (Teleostei, Ostariophysi). - Smithsonian Contributions in Zoology, 517: 1-52. Aquainfo: Breeding ...

*Parodontidae

Characiformes Nelson, Joseph, S. (2006). Fishes of the World. John Wiley & Sons, Inc. ISBN 0-471-25031-7. ... The Parodontidae are a family of fresh water fish of the order Characiformes. The three genera include about 32 species, though ...

*Pygocentrus

Revision of the piranha genus Pygocentrus (Teleostei, Characiformes). Copeia 3:665-687. Machado-Allison, A. & W. Fink. 1996. ...

*Hepsetus odoe

ISBN 0-471-25031-7 Decru, E., Vreven, E. & Snoeks, J. (2013). A revision of the Lower Guinean Hepsetus species (Characiformes; ... Decru, E., Vreven, E., and Snoeksa, J. (2011). A revision of the West African Hepsetus (Characiformes: Hepsetidae) with a ... Zengeya, T. A., Decru, E. and Vreven, E. (2011). Revalidation of Hepsetus cuvieri (Castelnau, 1861) (Characiformes: Hepsetidae ...

*Pencil fish

ein neuer Ziersalmler aus Venezuela (Teleostei: Characiformes: Lebiasinidae). Vertebrate Zoology, 63 (2): 125-137. (in German) ...

*Santanichthys

It is classified in the order Characiformes, an order that includes the tetras. Analysis of its morphological characters, ... This has several implications on the evolution of the Characiformes. All modern characiforms are strictly freshwater species. ... Filleul, Arnaud; John G. Maisey (2004-10-28). "Redescription of Santanichthys diasii (Otophysi, Characiformes) from the Albian ... which makes it the most primitive known member of the order Characiformes, the order in which modern-day tetras (including ...

*Astyanax (fish)

Astyanax is a genus of freshwater fish in the family Characidae of the order Characiformes. Some of these fish, like many of ... Ingenito, L.F.S. & Duboc, L.F. (2014). "A new species of Astyanax (Ostariophysi: Characiformes: Characidae) from the upper rio ... Characiformes, Characidae) from the rio La Plata and rio São Francisco drainages and coastal systems of southern Brazil and ... Characiformes: Characidae) from the Rio Paraguaçu basin, Chapada Diamantina, Bahia, Brazil, with comments on bony hooks on all ...

*Curimatopsis

Melo, B.F.; and C. Oliveira (2017). "Three new species of Curimatopsis (Characiformes: Curimatidae) from the Amazon basin". ...

*Serpae tetra

It is a member of the Characidae family of the order Characiformes. It is native to the Amazon River drainage in Brazil, Peru, ...

*Galeocharax

Menezes, N.A. (2007). Charax goeldii Fowler, 1913 a valid species of Galeocharax Fowler (Characiformes: Characidae). Neotrop. ...

*Canna Maria Louise Popta

"Order CHARACIFORMES: Family CHARACIDAE: Subfamilies STETHAPRIONINAE, RHOADSIINAE, CHARACINAE, TETRAGONOPTERINAE, ...

*Paraná flooded savanna

... mostly Characiformes and catfish. Species of fish that attract tourists for sports fishing include spotted sorubim ( ...

*Astyanax xiru

Characiformes: Characidae)". Neotropical Ichthyology. 11 (3): 537-552. doi:10.1590/s1679-62252013000300007. ...

*Astyanax pelecus

"A new species of Astyanax Baird & Girard (Characiformes: Characidae) from the Rio Paraguaçu basin, Chapada Diamantina, Bahia, ... Bertaco, Vinicius A.; Lucena, Carlos A. S. de (2006). "Two new species of Astyanax (Ostariophysi: Characiformes: Characidae) ... "New Hyphessobrycon from the upper rio Pardo drainage in eastern Brazil (Teleostei: Characiformes: Characidae)." Neotropical ... "Astyanax vermilion and Astyanax burgerai: new characid fishes (Ostariophysi: Characiformes) from Northeastern Bahia, Brazil." ...

*Serrasalmidae

Andrade; Machado; Jégu; Farias; and Giarrizzo (2017). "A New Species of Tometes Valenciennes 1850 (Characiformes: Serrasalmidae ... Characiformes: Serrasalmidae)". Zootaxa. 4205 (6): 571-580. CS1 maint: Uses authors parameter (link). ...

*Astyanax microschemos

Bertaco, Vinicius A.; Lucena, Carlos A. S. de (2006). "Two new species of Astyanax (Ostariophysi: Characiformes: Characidae) ... "A new species of Astyanax (Ostariophysi: Characiformes: Characidae) from the upper rio Iguaçu basin, southern Brazil." ... "Astyanax vermilion and Astyanax burgerai: new characid fishes (Ostariophysi: Characiformes) from Northeastern Bahia, Brazil." ...

*Alestopetersius

Mbimbi M.M., J.J. & Stiassny, M.L.J. (2012). "A new Alestopetersius (Characiformes: Alestidae) from the Kwilu River (Kasai ...

*Apareiodon affinis

Characiformes) and considerations regarding diversification of the group". Genetica. 105 (1): 63-67. doi:10.1023/A: ...

*Distichodontidae

The Distichodontidae are a family of fresh water African fishes of the order Characiformes. Two evolutionary grades are found ... Musschoot, T. & Snoeks, J. (2016): Re-establishment of the genus Monostichodus Vaillant 1886 (Characiformes, Distichodontidae ...

*Curimatidae

The Curimatidae, toothless characins, are a family of freshwater fishes, of the order Characiformes. They originate from ...

*Brycon insignis

Lima, F.C.T. (2017). A revision of the cis-andean species of the genus Brycon Müller & Troschel (Characiformes: Characidae). ... Characiformes). Zygote 21(1): 85-94. World Conservation Monitoring Centre 1996. Brycon acuminatus. 2006 IUCN Red List of ... Characiformes). Theriogenology 78(4): 803-810. Isaú, Rizzo, Amaral, Mourad, and Viveiros (2013). Structural analysis of oocytes ...

*Erythrinus erythrinus

Characiformes, Erythrinidae): occurrence and distribution of B chromosomes. Genetics and Molecular Research 13(3): 7094-7101. ...

*M'pozo River

Characiformes, Alestidae) from the Mpozo River in the Democratic Republic of Congo". Copeia. 2009: 110-116. doi:10.1643/CI-07- ...

*Anostomidae

Given that the Characiformes originated slightly more than 115 Mya, the Anostomoidea probably diverged from their characiform ... The Anostomidae are a family of ray-finned fishes that belong to the order Characiformes. Closely related to the Chilodontidae ... Filleul, Arnaud & Maisey, John G. (2004): Redescription of Santanichthys diasii (Otophysi, Characiformes) from the Albian of ... 2017): A new genus of Anostomidae (Ostariophysi: Characiformes): Diversity, phylogeny and biogeography based on cytogenetic, ...
Figure 3 - Phenogram of overall molecular similarity of RAPD bands among specimens from all localities at Tibagi, Paraná, and Iguaçu Rivers. Codes as in Figure 1. DISCUSSION The RAPD-PCR patterns indicate strong genetic differentiation within and among populations in the Paraná and the Tibagi Rivers. In the Paraná River at Porto Rico, the high levels of allelic polymorphism may represent the pristine composition of different species or populations within the H. malabaricus species complex, or they may be the outcome of faunal mixing caused by the closing of the Itaipu Dam in 1978 and the consequent flooding of Sete Quedas, another Oligocenic geographic barrier (Sampaio, 1988). Sete Quedas was the natural boundary for the Upper and Middle Paraná basins. The presence of an outlier in the Paraná River similar to the Iguaçu population suggests that the Paraná may indeed be a recipient of trahiras of diverse origins. The Londrina sample from the Tibagi River is most similar to the populations ...
The FIS values for each subpopulation tested by the formulae of Li (1955) were significantly different from zero (P , 0.05) at the EST-1*, EST-2* and PGM-2* loci from the Paraná river subpopulation, exactly the loci in which bands had low definition. The FIT values for EST-1* and EST-2* were significantly different from zero (P , 0.05) using the method of Brown (1970). None of the FST values tested by the procedures of Workman and Niswander (1970) were significantly different from zero (P , 0.05). DISCUSSION The levels of genetic variability and polymorphism reported in this study for the curimba can be considered high when compared to the mean values obtained by Nevo (1978) for 51 teleost species (H = 0.051 and P = 0.152) or the mean heterozygosity values calculated by Powell (1975) and Ward et al. (1992) for marine and freshwater fishes (0.058 and 0.051, respectively). High levels of heterozygosity and polymorphism might be expected for species of fish occurring over a broad range of ...
Etymology: Erimystax: Greek, eri = aumentative prefix, a lot + Greek, mystax = moustache (Ref. 45335); insignis: From the words eri, an intensifying prefix; stigma, spot; and insignis, meaning remarkable (referring to the distinct pigment pattern) (Ref. 10294). ...
Hi ... a small post to show you the amazing power of regeneration in piranha (Pygocentrus Piraya) video that could not have more information (Japanese owner) I
Hypothesizing that the Amazonian water system differences would affect the expression of muscle growth-related genes in juvenile tambaqui |i|Colossoma macropomum|/i| (Cuvier 1818), this study aimed to analyze the morphometric data and expression of myogenic regulatory factors (MRFs) in the white and red muscle from tambaqui obtained from clear and black Amazonian water systems. All of the MRF transcript levels (|i|myod|/i|, |i|myf5|/i|, |i|myogenin|/i|, and |i|mrf4|/i|) were significantly lower in the red muscle from black water fish in comparison to clear water fish. However, in white muscle, only the |i|myod|/i| transcript level was significantly decreased in the black water tambaqui. The changes in MRFs gene expression in muscle fibers of tambaqui from black water system provide relevant information about the environmental influence as that of water systems on gene expression of muscle growth related genes in the |i|C. macropomum|/i|. Our results showed that the physical and chemical water
FERNANDA LOUREIRO ALMEIDA OSULLIVAN, CPAA; ROGER CRESCENCIO, CPAA; ANTONIO CLAUDIO UCHOA IZEL, CPAA; CHEILA DE LIMA BOIJINK, CPAA; EDSANDRA CAMPOS CHAGAS, CPAA ...
Buckup, P.A., 1993. Review of the characidiin fishes (Teleostei: Characiformes), with descriptions of four new genera and ten new species. Ichthyol. Explor. Freshwat. 4(2):97-154. (Ref. 13683 ...
Buckup, P.A., 1993. Review of the characidiin fishes (Teleostei: Characiformes), with descriptions of four new genera and ten new species. Ichthyol. Explor. Freshwat. 4(2):97-154. (Ref. 13683 ...
Zarske, A. and J. Géry, 1999. Revision der neotropischen Gattung Metynnis Cope, 1878. 1. Evaluation der Typusexemplare der nominellen Arten (Teleostei: Characiformes: Serrasalmidae). Zool. Abh. Mus. Tierk. Dresden 50(13):169-216. (Ref. 34077 ...
Tambaqui & Pirapitinga of the Amazon basin - part of a compendium of scientific & angling information about Amazonian gamefish species.
Schatz, H. (2010). Ameronothrus lineatus (Thorell, 1871). Accessed through: World Register of Marine Species at http://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=508289 on 2017-12- ...
Best price in Australia on LOreal Age Perfect Cell Renewal Night Cream - 1.7 oz from eVitamins.com. Find Age Perfect Cell Renewal Night Cream reviews, side effects, coupons and more from eVitamins. Fast and reliable shipping to the Australia. Age Perfect Cell Renewal Night Cream and other products by LOreal for all your health needs.
Substituição de alimento vivo por alimento inerte na larvicultura intensiva do tambacu (♀ Colossoma macropomum X ♂ Piaractus mesopotamicus - DOI: 10.4025/actascianimsci.v30i4.3835 Replacement of live food for inert food on larviculture of tambacu (♀ Colossoma macropomum X ♂ Piaractus mesopotamicus - DOI: 10.4025/actascianimsci.v30i4.3835. Directory of Open Access Journals (Sweden). Levy de Carvalho Gomes. 2009-03-01. Full Text Available Com este trabalho objetivou-se avaliar a substituição de náuplios de Artemia salina por alimentos inertes durante a larvicultura do tambacu. Na primeira fase, com duração de 12 dias, as larvas foram alimentadas com: náuplio de Artemia salina, cyclop-eeze e ovo de Artemia salina. Na segunda fase, com duração de dez dias, foram utilizadas larvas alimentadas com náuplios de Artemia salina provenientes da primeira fase e testados os mesmos três alimentos. A qualidade da água manteve-se em condições adequadas para a larvicultura nas duas fases. ...
ID W5KKV7_ASTMX Unreviewed; 487 AA. AC W5KKV7; DT 16-APR-2014, integrated into UniProtKB/TrEMBL. DT 16-APR-2014, sequence version 1. DT 20-DEC-2017, entry version 23. DE SubName: Full=BAI1-associated protein 2-like 1a {ECO:0000313,Ensembl:ENSAMXP00000008219}; OS Astyanax mexicanus (Blind cave fish) (Astyanax fasciatus mexicanus). OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; OC Actinopterygii; Neopterygii; Teleostei; Ostariophysi; Characiformes; OC Characoidei; Characidae; Characidae incertae sedis; Astyanax clade; OC Astyanax. OX NCBI_TaxID=7994 {ECO:0000313,Ensembl:ENSAMXP00000008219, ECO:0000313,Proteomes:UP000018467}; RN [1] {ECO:0000313,Ensembl:ENSAMXP00000008219, ECO:0000313,Proteomes:UP000018467} RP NUCLEOTIDE SEQUENCE. RC STRAIN=female {ECO:0000313,Ensembl:ENSAMXP00000008219}; RA Jeffery W., Warren W., Wilson R.K.; RL Submitted (MAR-2013) to the EMBL/GenBank/DDBJ databases. RN [2] {ECO:0000313,Ensembl:ENSAMXP00000008219} RP IDENTIFICATION. RG Ensembl; RL Submitted ...
ID W5KPK9_ASTMX Unreviewed; 120 AA. AC W5KPK9; DT 16-APR-2014, integrated into UniProtKB/TrEMBL. DT 16-APR-2014, sequence version 1. DT 20-DEC-2017, entry version 16. DE SubName: Full=Uncharacterized protein {ECO:0000313,Ensembl:ENSAMXP00000009521}; OS Astyanax mexicanus (Blind cave fish) (Astyanax fasciatus mexicanus). OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; OC Actinopterygii; Neopterygii; Teleostei; Ostariophysi; Characiformes; OC Characoidei; Characidae; Characidae incertae sedis; Astyanax clade; OC Astyanax. OX NCBI_TaxID=7994 {ECO:0000313,Ensembl:ENSAMXP00000009521, ECO:0000313,Proteomes:UP000018467}; RN [1] {ECO:0000313,Ensembl:ENSAMXP00000009521, ECO:0000313,Proteomes:UP000018467} RP NUCLEOTIDE SEQUENCE. RC STRAIN=female {ECO:0000313,Ensembl:ENSAMXP00000009521}; RA Jeffery W., Warren W., Wilson R.K.; RL Submitted (MAR-2013) to the EMBL/GenBank/DDBJ databases. RN [2] {ECO:0000313,Ensembl:ENSAMXP00000009521} RP IDENTIFICATION. RG Ensembl; RL Submitted (FEB-2014) ...
The Piranha Unmanned Surface Vessel (USV or unmanned surface vehicle) is a watercraft developed by Zyvex Marine (a division of Zyvex Technologies, formerly Zyvex Performance Materials) in 2010. The boat is 54 in length and weighs just 8,000 lbs. The Piranha is the first USV to utilize a lightweight carbon-nanotube enhanced composite material called Arovex, which allows the watercraft to weigh "significantly less" than any other USV. The weight advantage from Arovex gives the Piranha a payload capacity of 15,000 lbs and a range of over 2,500 miles. Additionally, the carbon-nanotubes actually provide a strength increase of 20-50% over traditional materials. With those characteristics, the Piranha is expected to be sold as a possible tool for anti-piracy, search and rescue, submarine hunting, and harbor patrol. The first Piranha began construction in February 2010 with an anticipated completion date of summer 2010. The Piranha underwent sea trials near Seattles Puget Sound during the months of ...
Nitrogen metabolism in tambaqui (Colossoma macropomum), a neotropical model teleost: hypoxia, temperature, exercise, feeding, fasting, and high environmental ammonia.. PubMed. Wood, Chris M; de Souza Netto, José Gadelha; Wilson, Jonathan M; Duarte, Rafael M; Val, Adalberto Luis. 2017-01-01. The total rate of N-waste excretion (M N) in juvenile tambaqui living in ion-poor Amazonian water comprised 85 % ammonia-N (M Amm-N) and 15 % urea-N (M Urea-N). Both occurred mainly across the gills with only ~5 % of M Amm-N and ~39 % of M Urea-N via the urine. Tambaqui were not especially tolerant to high environmental ammonia (HEA), despite their great resistance to other environmental factors. Nevertheless, they were able to maintain a continued elevation of M Amm-N during and after 48-h exposure to 2.5 mmol L(-1) HEA. The normally negative transepithelial potential (-18 mV) increased to -9 mV during the HEA period, which would help to reduce branchial NH4(+) entry. During 3 h of acute environmental ...
original description Varella, A.M.B. & J.C.O. Malta. (2001). Brasergasilus mamorensis sp. n. (Copepoda: Ergasilidae) from the nasal cavities of Hydrolycus pectoralis (Guenther, 1866) (Characiformes: Cynodontidae) from the Brazilian Amazon, and considerations about Abergasilinae. Acta Amazonica 31 (2): 323-330. [details] ...
...Piranhas inhabit exclusively the fresh waters of South America. Their ...,Present-day,species,of,piranha,result,from,a,marine,incursion,into,the,Amazon,Basin,biological,biology news articles,biology news today,latest biology news,current biology news,biology newsletters
The megadiverse tropical mountain forests in the southeastern Andes of Ecuador, including their biodiversity and ecosystem services, are severely threatened due to climate warming and the clearing of forests to produce pasture land. The common local practice of recurrent burning for pasture rejuvena.... Ausführliche Beschreibung. ...
(2017) Volz et al. Molecular Biology and Evolution. Within-host genetic diversity and large transmission bottlenecks confound phylodynamic inference of epidemiological dynamics. Conventional phylodynamic approaches assume that nodes in a time-scaled pathogen phylogeny correspond closely to the ti...
Two years ago, audiences nationwide were given PIRANHA 3D, a post-converted 3D remake/parody of the low-budget Roger Corman production of 1978. It was successful in delivering some good-humored, guilty pleasure fun and instantly became a...
Ohio-based Zyvex Technologies just unveiled the Piranha - a next-gen unmanned boat that is 75% lighter, 40% stronger, and 400% more fuel efficient than similarly-sized aluminum boats. The 54-foot
Gracyn is getting quite the personality! Today I picked her up after work and she ran to the door calling for mama. The other day she pointed her finger at Mommy and said NO! She now signs the word PLEASE. And.... Today grandma asked her if she wanted toast for breakfast, and she said Yesh (yes)! :-)......and I cant forget to document that she now has 12 teeth! One thing that we have noticed .....this cold weather does not agree with her sensitive skin! Poor thing is continually fighting a rash on her face. It will be interesting to see if we see the same trend next year when the weather turns cold again. Another thing Mommy noticed lately is that Gracyn tends to cross her eyes when looking at some objects up close. If this doesnt correct itself over time, I see an eye doctor visit in her near future. :-(. Sorry I passed down my poor eye genes to you....please forgive me ...
Gracyn is getting quite the personality! Today I picked her up after work and she ran to the door calling for mama. The other day she pointed her finger at Mommy and said NO! She now signs the word PLEASE. And.... Today grandma asked her if she wanted toast for breakfast, and she said Yesh (yes)! :-)......and I cant forget to document that she now has 12 teeth! One thing that we have noticed .....this cold weather does not agree with her sensitive skin! Poor thing is continually fighting a rash on her face. It will be interesting to see if we see the same trend next year when the weather turns cold again. Another thing Mommy noticed lately is that Gracyn tends to cross her eyes when looking at some objects up close. If this doesnt correct itself over time, I see an eye doctor visit in her near future. :-(. Sorry I passed down my poor eye genes to you....please forgive me ...
If Piranha Plants Were Crossed With Humans Piranha plants are creepy enough as is with the whole being able... ...le to eat humans thing, but what if you crossed a piranha plant with a human? The results are even more dis... http://www.neatorama.com/2013/07/02/If-Piranha-Plants-Were-Crossed-With-Humans/ ...
Daily News How Gaining and Losing Weight Affects the Body Millions of measurements from 23 people who consumed extra calories every day for a month reveal changes in proteins, metabolites, and gut microbiota that accompany shifts in body mass.. ...
Daily News How Gaining and Losing Weight Affects the Body Millions of measurements from 23 people who consumed extra calories every day for a month reveal changes in proteins, metabolites, and gut microbiota that accompany shifts in body mass.. ...
I have had my Pacu fish ( the ones related to the Pirana) for about a month and a half now, at first they huddled at 1 side of the tank and I figured that was because of the move and stress, they are still huddling around the same side of the tank. there is plenty of room for them, I do not understand. I have not tested my water in 3 days because I have ran out of testing equipment but nothing has changed since the last test so it should be good, but I have been doing it every day ever since
binatang mengerikan dan aneh yang berada di sungai amazon Candirú adalah sejenis ikan air tawar yang sejenis dengan ikan lele. Ikan ini memiliki reputasi di antara penduduk lokal sebagai ikan paling ditakuti, bahkan melebihi piranha. Spesies ini berukuran hanya sekitar satu inci panjangnya, berbentuk seperti belut dan tembus pandang sehingga sulit dilihat di air. Candiru adalah sejenis parasit. I
Proteins used by the body as biological messengers responsible for initiating cell renewal and repair. Their use results in a significant increase in the natural production of collagen and a visible reduction of wrinkles.. ...
The freshwater fish louse Dolops carvalhoi is an ectoparasite of pacu, Piaractus mesopotamicus capable of causing substantial damage to its hosts. The aim of this study was to investigate some aspects of the host-parasite interaction between these two species. For this purpose the physiological and morphological responses and the participation of the non-adaptive immune system of pacu to the experimental infestation with D. carvalhoi were analyzed. Three different experimental protocols were designed in order to find out the effects of the parasites on their hosts, the host responses that may interfere with parasite establishment and the influence of chronic exposure of hosts with juvenile D. carvalhoi to a second acute stressor of confinement. The results showed that even low level of adult parasite infestation is capable to induce a stress response in the hosts. No changes were observed regarding the plasma osmoregulatory parameters, while an increased number of gill chloride cells and ...
The composition of the diet, the metabolic adaptations and variations in the activity of the fish are the main factors responsible for seasonal changes in physiological variables. It is known that aerobic exercise can improve the fish growth due to: the enhancement of feed conversion, reduced dominance, increased protein synthesis and lipid and glucose catabolism. The diet must satisfy the nutritional requirements of each species. Knowledge of the appropriate protein level is critical because maximizes feed conversion efficiency, lowers costs and reduces the load of nutrients released to the aquatic ecosystem. In Brazil, the pacu, Piaractus mesopotamicus, is an important fish in aquaculture, especially for hardiness, fast growth, excellent meat quality. This species may respond to exercise with lower levels of protein catabolism and for directing them to growth. Thus, a balanced diet and a well established aerobic exercise protocol could promote better growth for pacu. This study aimed to ...
In seasonal mammals living in temperate zones, photoperiod regulates prolactin secretion, such that prolactin plasma concentrations peak during the summer months and are lowest during the winter. In sheep, a short-day breeder, circulating prolactin has important modulatory effects on the reproductive system via inhibitory actions on pituitary gonadotrophs and hypothalamic gonadotrophin-releasing hormone release. The exact cellular mechanisms that account for the chronic hypersecretion of prolactin during the summer is not known, although evidence supports an intrapituitary mechanism regulated by melatonin. Folliculo-stellate (FS) cells are non-endocrine cells that play a crucial role in paracrine communication within the pituitary and produce factors controlling prolactin and gonadotrophin release. The present study examined the morphology of the FS and lactotroph cell populations and their distribution in the sheep pituitary during the annual reproductive cycle. Ovine pituitary glands were collected in
Abstract: About 650 species-330 snakes, 230 lizards, 50 amphisbaenids, 6 caimans, and 35 turtles-comprise the known reptile fauna of Brazil. Only 20 are considered threatened. Except for the marine and freshwater turtles, which suffer from overexploitation and habitat destruction, they are threatened because of their rarity and extremely restricted ranges. Despite its richness and diversity, research on Brazils reptile fauna is still largely restricted to alpha taxonomy. Surveys, an electronic database of all herpetological collections, and phylogeographic studies based on molecular genetic techniques are needed to improve our understanding of the biogeography of this group and to delineate effective conservation strategies to preserve the evolutionary potential of existing lineages. Autecological, population, and community studies that monitor effects of habitat degradation, fragmentation, and loss, pollution, and exploitation are needed for a better understanding of the effects of the ...
Flowers generally bisexual; calyx fused to ovary top, limb 0 or highly modified (if present, lobes generally 5 15, coiled inward, becoming plumose, pappus-like, spreading in fruit); corolla radial to 2-lipped, lobes generally 5, throat generally , lobes, , tube, base generally spurred or swollen, tube slender, long or short; stamens generally 1 3, epipetalous; ovary inferior, chamber generally 1 (sometimes 3 but 2 empty or vestigial ...
Bothrops marajoensis is found in the savannah of Marajo Island in the State of Par S and regions of Amapa State, Brazil. The aim of the work was to study the renal and cardiovascular effects of the B. marajoensis venom and phospholipase A(2) (PLA(2)). The venom was fractionated by Protein Pack 5PW. N-terminal amino acid sequencing of sPLA(2) showed amino acid identity with other lysine K49sPLA(2)s of snake venom. B. marajoensis venom (30 mu g/mL) decreased the perfusion pressure, renal vascular resistance, urinary flow, glomerular filtration rate and sodium tubular transport. PLA(2) did not change the renal parameters. The perfusion pressure of the mesenteric bed did not change after infusion of venom. In isolated heart, the venom decreased the force of contraction and increased PP but did not change coronary flow. In the arterial pressure, the venom and PLA(2) decreased mean arterial pressure and cardiac frequency. The presence of atrial flutter and late hyperpolarisation reversed, indicating ...
Accurate and detailed species distribution maps are fundamental for documenting and interpreting biological diversity. For snakes, an ecologically diverse group of reptiles, syntheses and detailed data on distribution patterns remain scarce. We present the first comprehensive collection of detailed, voucher-based, point-locality, range maps for all described and documented Brazilian snakes, with the major aim of mitigating the Wallacean shortfall and as a contribution towards a better understanding of this rich, threatened, and poorly studied megadiverse fauna. We recorded a total of 412 snake species in Brazil on the basis of an extensive and verified point-locality database of 163,498 entries and 75,681 unique records (available here as Online Supporting Information). Our results reveal previously undocumented patterns of distribution, sampling effort, richness, and endemism levels, resulting in a more objective view of snake diversity in the Neotropics. Apart from these achievements, we ...
excerpted from the INTRODUCTION: The Dominance of Diptera Most species of animals belong to one of four large orders: the Coleoptera (beetles), Lepidoptera (moths and butterflies), Hymenoptera (ants, wasps, bees and sawflies) or Diptera (flies). Of these megadiverse groups, the flies are arguably the most important, if only because they kill millions of people a year by transmitting our most devastating diseases. But this enormous impact is due to only a few dozen species, and dipteran damage to forests, crops and stored products is similarly due to mere dozens of different fly genera. Vastly more -- thousands of species -- are beneficial, contributing to the pollination of plants, biological control of pest insects, and disposal of the dung, carrion and other organic matter that would otherwise quickly carpet the planet. Despite all this, a relatively large proportion of the species in the order Diptera remains undiscovered, unnamed or unidentifiable. This is perhaps in part because of the ...
The popular image of red-bellied piranhas portrays them as more feared than fearful. However, the results of our investigation are consistent with an anti-predator function for shoaling in the species. We found that opercular rate, which typically increases under risk (Metcalfe et al. 1987; Barreto et al. 2003), and may be indicative of a fishs preparedness to flee (Hawkins et al. 2004), was lower in larger groups, even in the absence of an overt predation threat. Furthermore, after a simulated attack, opercular rate remained elevated for longer in the smaller shoals. Because the size of red-bellied piranha shoals at Mamirauá ranges from fewer than 10 to about 100 (H. Queiroz and A. E. Magurran, personal observation), the grouping advantages detected in this experiment are applicable to fishes in the wild. Our study not only casts new light on the behaviour of a charismatic, though poorly researched species, but also reveals how a fishs perception of risk is affected by shoal size.. In the ...
Balbina Reservoir in Brazil has large numbers of black piranha, the largest piranha species. Find out from Jeremy Wade what you need to hook these.
Can tough-as-nails Black Piranha have another brilliant campaign? Its one of racings big spring questions. Jockey Tye Angland is warning punters not to underestimate the Cox Plate-bound BP in Sats class-packed George Main Stakes at Randwick. The Con Karakatsanis-trained gelding was tremendous last campaign, winning the Stradbroke Handicap and he returned with a great 2nd to Absolutelyfabulous in the Cameron at Newcastle, carrying 60kgs. Tye says: Im confident hell run a fine race...He hasnt let us down so far. BP is among 10 acceptors for the Grp 1 feature. He faces a pitched battle with superstars Racing To Win, Mentality, and Vision And Power.. Black Piranha was at $5 when TAB Sportsbet released markets on the George Main on Wednesday, with Racing To Win, winner of the race three years ago, the $1.90 fav ahead of the only 3YO in the race, Onemorenomore, winner of the Grp 1 Champagne Stakes over the track and distance in the autumn, at $4.60.. Sats Stan Fox Stakes at Randwick has ...
... - Heres a toilet paper cozy that looks at home on a toilet. A Super Mario Bros warp pipe!But uh-oh.... its also a Piranha Plant!!It
Remsen J. V. Jr., Cadena C. D., Jaramillo A., Nores M., Pacheco J. F., Pérez-Emán J., Robbins M. B., Stiles F. G., Stotz D. F. and Zimmer K. J. (2002-2013): Classification of the bird species of South America 17 March 2013 [http://www.museum.lsu.edu/~Remsen/SACCBa...], American Ornithologists Union [as Hylopezus nattereri ...
The world's major fish faunas, and most of its smaller ones as well, are by no means well-known, either taxonomically or with regard to the biology of their component species. Apart from the very large number of fish species (20,000-27,000) and the difficulties for study posed by the medium in which they live, there are several other reasons for that state of affairs. An obvious and universal reason is the shortage of money available for fundamental research, and consequently a shortage of research workers. In the fields of taxonomy and systematics, both basic and essential disciplines in the study and interpretation of biodiversity, that shortage is exacerbated by other and supposedly more exciting and glamorous disciplines attracting students and teachers (and funds!). The biology of most species is poorly known, if at all, and even for those fishes of economic importance it is often biased towards particular and pragmatic ends. Fishes, no less than other organisms, are threatened by numerous
Theres no denying that James Cameron is a talented man in this industry and he has made a few of the greatest innovations in recent years (notably further exploring the Titanic and the current 3D technology.) Though his script writing talents are questionable and aspects of his directing are suspect Cameron seems to have an uncanny ability to pull great work from his actors, but his biggest talent may not be as a director. Cameron is likely one of the greatest cinematographers thats not working as one. With all due respect to the cinematographers whove worked with him (though there are numerous rumors that speak to Cameron being extremely difficult to work with) his films all have a stunning beauty that remains constant though his director of photography may not. "Piranha Part 2: The Spawning" may not be a grand sprawling epic that Cameron will become known for but inklings of that talent are evident to the keen observer. His work with underwater scenes are surprisingly good (hes an avid and ...
Hi. I have a lot of fry piranhas, theyre 4 days old now. Im afraid to put them in the new tank that I have set up with my wife. When is the right time for me to move them? The tank where they are now has a lot of cotton like thing thats everywhere. Should I take them out? When can I do water change? Suppose to be it was the time for water change when I realized theyre not behaving the usual. Thats when my wife started searching what to do. Please help us cuz we know that not everyone is
There currently exist a dozen described Esomus specie,s although few are seen in the ornamental trade and none are especially popular. Most are commonplace in their native countries but are generally overlooked by collectors due to their relatively plain colouration. Their most common use in some areas is actually as a feeder fish in the aquaculture of larger species. They are characterised by greatly-enlarged pectoral fins and two pairs of barbels, of which the maxillary pair are extremely long and usually reach the pectoral fins.. In recent years a number of phylogenetic studies involving Esomus and its near relatives have been conducted and conflicting results published. For example a 2003 study by Fang et al. concluded that the genus is the sister group, i.e., most closely-related to, Danio whereas Mayden et al. (2007) placed the genera Chela, Microrasbora, Devario and Inlecypris as sisters to Danio with Esomus as a basal sister group to that larger clade.. A further analysis by Fang et al. ...
Hi Colin, good to speak again, not seen you around for ages. Hows things? Luckily for me my arnoldi spawns are almost 100% fertile 99% of the time.. Its obviously a fertility problem, how old are the fish? what are they spawning on? i used to get poorer results when mine jumped to the cover glass, the gravity was a stronger pull and it seemed they always spent a second or so less when laying/fertilising the eggs than they do with my current method.. I now drop the water level a good 6 inches so stop them spawning on the coverglass, then utilise plastic/silk plants with removeable leaves, once i have a spawn(most days!) i remove the eggs along with the leaf and place them imersed in a 2 litre container where they hatch and live for the first 10 days while on paramecium.. Once on baby brineshrimp they are moved to a larger 5 litre container for a further week or so and then into a 20 litre filtered glass tank and eventually larger again as they outgrow it..A lot of work but a lot of fun and ...
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The definitive parents guide to movies and video since 1992, Kids-In-Mind rates films according to how much sex, nudity, violence, gore and profanity they contain.
Not even a day after it went live, the For Your Consideration spoof was replaced with something far less biting about the Academy Awards.
Originally Posted by weekf I think I can explain the reason behind all these shocks or reflexes even when you are ready or prepare for it. Man and water DO NOT mix simply because we live on land and
Acknowledgements Introduction. RUTTER, E., MECKLENBURGH, J. & TAYLOR, K. Geomechanical and petrophysical properties of mudrocks: introduction. Petrophysical properties. BUSCH, A., SCHWEINAR, K., KAMPMAN, N., COORN, A., PIPICH, V., FEOKTYSTOV, A., LEU, L., AMANN-HILDENBRAND, A. & BERTIER, P. Determining the porosity of mudrocks using methodological pluralism. MCKERNAN, R., MECKLENBURGH, J., RUTTER, E. & TAYLOR, K. Microstructural controls on the pressure-dependent permeability of Whitby mudstone. RUTTER, E. H. & MECKLENBURGH, J. Hydraulic conductivity of bedding-parallel cracks in shale as a function of shear and normal stress. PHILIPP, T., AMANN-HILDENBRAND, A., LAURICH, B., DESBOIS, G., LITTKE, R. & URAI, J. L. The effect of microstructural heterogeneity on pore size distribution and permeability in Opalinus Clay (Mont Terri, Switzerland): insights from an integrated study of laboratory fluid flow and pore morphology from BIB-SEM images. FINK, R., KROOSS, B. M. & AMANN-HILDENBRAND, A. ...
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See related TAO tracker request An entity may have taxonomically variable part_of relationships. For example, vertebra 1 may or may not be part_of the Weberian apparatus. (The Weberian apparatus is an anatomical cluster consisting of the first four vertebrae (additional vertebra in some taxa) and associated structures which connect the gas bladder to the inner ear. It is diagnostic of the Otophysi (Cypriniformes, Characiformes, Gymnotiformes, Siluriformes). Some species have vertebra 5 and/or 6 as part of Weberian apparatus). How to represent taxonomically variable part_of information in a multi-species ontology? ...
Brown, K. S., Jr. 1970 Rediscovery of Heliconius nattereri in eastern Brazil. Entomol. News 81, 129-140.. Brown, K. S., Jr. 1972 The heliconians of Brazil (Lepidoptera: Nymphalidae). Part III. Ecology and biology of Heliconius nattereri, a key primitive species near extinction, and comments on the evolutionary development of Heliconius and Eueides. Zoologica NY 57, 41-69.. Brown K. S. 1981 The Biology of Heliconius and Related Genera. Annual Review of Entomology 26, 427-456.. Felder C. Felder R. 1865. Reise der sterreichischen Fregatte Novara um die Erde in den Jahren 1857, 1858, 1859 unter den Befehlen des Commo-dore B. von W llerstorf-Urbair. Zoologischer Theil. Zweiter Band. Zweite Abtheilung: Lepidoptera. Wien, Carl Gerolds Sohn. (1): [4] + 1-136, pls. 1-21.. ...
The megadiversity of the Neotropical ichthyofauna has been associated to recent diversification processes, reflecting in subtle or lacking morphological differentiation between species, challenging the classical taxonomic identification. Leporinus friderici occurs in several river basins of South America, and its nominal taxonomic validity has been questioned. Its wide distribution within Brazilian Shield suggests that this species could be genetically structured among the hydrographic basins, despite a sharp morphological similarity. In this study, we performed phylogenetic analyses, based on three nuclear (RAG1, RAG2 and Myh6) and two mitochondrial (COI and Cytb) markers, in specimens morphologically similar to L. friderici and related species from different hydrographic basins in South America. Our phylogenetic tree identified four well-supported clades, point out to the existence of taxonomic inconsistencies within this fish group. A clade named L. cf. friderici sensu stricto included eight MOTUs
Gall bladder cancers incidence is 14 per lakh population in women and 7.4 per lakh population in men in regions where the Ganga and Brahmaputra rivers flow.
infestation in my piranha tank of snails - Tropical fish forum at the Age of Aquariums - dedicated to promoting responsible fish-keeping internationally.
New Liquid Piranha. Roots are what feed your plants almost everything they need, and now you can maximize your plants root mass so your plants get optimum
This week in viral videos, its a collection of animals including piranhas, cats and ducks, with some added drunk skater, skinny jeans and remixed aircraft safety announcements, for good measure.
Chubutisaurus (meaning "Chubut lizard") is a genus of dinosaur from the Early Cretaceous Period. It lived in South America. It is classified as a sauropod, specifically one of the titanosaurs. The type species, Chubutisaurus insignis, was described by del Corro in 1975. Its fossils were found in the Cerro Barcino Formation, Albian stage, about 110 million years ago. Chubutisaurus had a more robust radius than Venenosaurus. G. del Corro. 1975. Un nuevo sauropodo del Cretácico Superior. Actas del Primer Congreso Argentino de Paleontologia y Bioestratigrafia 2:229-240 Weishampel, et al. (2004). "Forelimb," Tidwell, Carpenter, and Meyer (2001). Page 148. Tidwell, V., Carpenter, K. & Meyer, S. 2001. New Titanosauriform (Sauropoda) from the Poison Strip Member of the Cedar Mountain Formation (Lower Cretaceous), Utah. In: Mesozoic Vertebrate Life. D. H. Tanke & K. Carpenter (eds.). Indiana University Press, Eds. D.H. Tanke & K. Carpenter. Indiana University Press. 139-165. Weishampel, David B; et al. ...
SummaryWeight gain, length, and survival of Pacu (Piaractus brachypomus) larvae were analyzed after they were fed one of four diets. At 36 hours post-hatching larvae were fed for the first time and during three consecutive days: Artemia salinanauplii (T1), wild plankton filtered to 200 microns (T2),concentrated powder with 48% crude protein (T3) or no diet (fasting, T4). Animals were kept at a density of 70 larvae per liter. Statistically significant differences were observed with respect to the final weight for T1, T2, T3, and T4 (2.2 ± 0.3a, 1.7 ± 0.3b, 1.5 ± 0.3bc, 1.5 ± 0.2c mg, respectively) , final length (6.37 ± 0.29a, 0.20b ± 6.16, 5.95 ± 0.27c, 0.26c ± 5.87 mm, respectively), weight gain (0.77 ±0.39a, 0.31b ± 0.34, 0.16 ± 0.37bc, 0.08 ± 0.21 c mg, respectively) and length gain (0.39 ± 0.17A, 0.18± 0.15b, 0.16c ± -0023, -0102 ± 0.15c mm, respectively). The T1 diet had the best results for optimal growth, followed by T2. The survival rate was not statistically different ...
The discovery of five new species of armored spiders of the family Tetrablemmidae in the Karst caves of the Southwest of China has caught a particular strand of imagination for culture and science watchers. Researchers Shuqiang Li and Yanfeng Tong and their colleagues at the Chinese Academy of Science in Beijing have spent lots of time poking around in the materials on the floor of caves and in other nooks and crannies. The armored spiders discovery contributes to constantly updated maps of megadiversity.. Li and Feng identified the first species of Tetrablemmidae in China in 2007, and are contributors to a Planetary Biodiversity Inventory of Oopinidae (goblin spiders). These massive inventories are hosted on portals by the Global Biodiversity Inventory Facility. The tiny spiders of Tetrablemmedae and Oopinidae are "megadiverse" in the variation of their species and "microdistributed" in the specificity of their ranges. Tetrablemidae range across Central America, Brazil, equatorial Africa, ...
Biology professor David Tank joins international team to create massive time-scaled evolutionary tree for land plants, explore history of adaptations for cold climates
For the past two years, I have been pursuing multiple research projects with researchers at the Federal University of Amazonas (UFAM) in Brazil to explore the trophic ecology of native and endangered fish species in the acidic Rio Negro (blackwater river). Given that this region is at the forefront of dealing with some of the most pressing problems related to both global climate change and anthropogenic interactions, this work is critical to understanding global ecosystem processes. My most recent projects have involved bringing students to Brazil with me to explore autotrophic energy sources of freshwater stingrays (Potamotrygon spp.) through carbon isotopes, compare the diet of Tucunaré-açu (Cichla temensis, aka, Peacock bass) between acidic and alkaline river habitats, and examine the role of herbivory in the food web of red piranha (Pygocentrus natteri) throughout the Amazon. Additionally, we are finalizing submission of work on fish food webs in aquatic macrophyte stands of Amazonian ...
Given that water is oxidized indirectly by P680+ and the build up of intermediates caused by inhibition in Qb would not allow P680 to deposit its extra electron into the beginning of the electron transport chain, water would not be oxidized/split into 2H+ and (1/2)O2 because P680 would not become P680+. So this inhibition would halt the production of oxygen, correct?. Given that, I would say that the production of O2 would be more immediately halted than that of ATP, especially since ATP synthase would continue to function until the electrochemical gradient between the stroma and thylakoid space was spent, and would not be immediately affected by inhibition in Qa (although the electron transport chain which maintains the electrochemical gradient would be compromised and thus indirectly ATP synthase would be affected).. Is my reasoning correct?. ...
E hoje estava fazendo alguns testes com ab e jmeter em uma máquina local e que quando coloco uma url que não existe no site, o squid esta deixando passar todas as requisições para as instâncias e quando logo em seguida repito o teste com a mesma url ele segura todas as requisições. Fiquei preocupado com o resultado dos testes de carga em cima de urls 404, pois se for uma carga alta em cima de urls inválidas pode até derrubar um portal. Tentei até configurar o erro_map com uma página de 404 no apache, mesmo assim obtive o mesmo resultado relatado acima. Parece que o collapsed_forwarding so funciona com urls que retornam o status 200. Perguntas: Alguém já utilizou o LVS com ou sem o piranha ? Como resolvo o problema das urls 404 ? [1] http://sourceware.org/piranha/ abraços, Clayton ...
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https://www.piranhainsurance.com.au/wp-content/uploads/2017/05/spider.jpg 484 587 admin https://www.piranhainsurance.com.au/wp-content/uploads/2014/11/piranha-logo-new.png admin2017-06-30 08:00:292017-05-29 04:54:21Creepy crawly spider facts ...
GenDR A curated database of genes associated with dietary restriction in model organisms either from genetic manipulation experiments or gene expression profiling.. ...
There is no evidence for degenerative or constructive tendencies in the highly developed systems of neuromasts, in the nasal organs and in the labyrinths o
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in_a_firstofitskind_look_at_human_kidney_development_researchers_at_the_saban_research_institute_of_childrens_hospital_los_angeles_have_isolated_human_nephron_progenitor_np_cells_their_results_published_online_in_the_journal_stem_cell_translational_medicine_will_help_scientists_understand_how_these_progenitor_cells_become_renal_cells_in_the_developing_fetus_and_possibly_off
TyTek Medicals 5 1/2 Piranha Trauma Shears are the very best tactical shears available. These tactical shears were engineered to meet and...
This is a young bristle/bushynose pleco. I didnt notice this spot until a couple days after I purchased him. It would kind of come and go at random for...
The Mexican tetra, Astyanax mexicanus, is a unique model system consisting of cave-adapted and surface-dwelling morphotypes which diverged ,1My ago. This remarkable natural experiment has enabled powerful genetic analyses of cave adaptation. Here, we describe the application of next-generation sequencing technology to the creation of a high-density linkage map. Our map comprises over 2200 markers populating 25 linkage groups constructed from genotypic data generated from a single genotyping-by-sequencing project. We leveraged emergent genomic and transcriptomic resources to anchor hundreds of anonymous Astyanax markers to the genome of the zebrafish (Danio rerio), the most closely related model organism to our study species. This facilitated the identification of 784 distinct connections between our linkage map and the Danio rerio genome, highlighting several regions of conserved genomic architecture between the two species despite ~150My of divergence. Using a Mendelian cave-associated trait as ...
Fruit composition at harvest is strongly dependent on the temperature during the grapevine developmental cycle. This raises serious concerns regarding the sustainability of viticulture and the socio-economic repercussions of global warming for many regions where the most heat-tolerant varieties are already cultivated. Despite recent progress, the direct and indirect effects of temperature on fruit development are far from being understood. Experimental limitations such as fluctuating environmental conditions, intra-cluster heterogeneity and the annual reproductive cycle introduce unquantifiable biases for gene expression and physiological studies with grapevine. In the present study, DRCF grapevine mutants (microvine) were grown under several temperature regimes in duly-controlled environmental conditions. A singly berry selection increased the accuracy of fruit phenotyping and subsequent gene expression analyses. The physiological and transcriptomic responses of five key stages sampled simultaneously
FOR SEVEN YEARS ISRAELI AUTHORITIES HAVE DONE NOTHING to stop the EU building of illegal Arab settlements on Jewish land ~~~~~ While Israel has frozen construction across the Green Line, and razes the tiniest house addition or Jewish unauthorized outposts on the hills, Arabs keep building ILLEGAL SETLEMENTS with impunity, and with the funding and assistance of the European Union. Those settlements are in internationally-recognized Israeli land (Area C), thus the EU is not only violating Israeli sovereignty, but its own diplomatic rules of operation in foreign countries. - These illegal Arab settlements are meant to be FACTS ON THE GROUND for the eventual Muslim takeover of Jewish land - EUROPEANS DID NOT WANT JEWS IN EUROPE and murdered MILLIONS of them. Now they dont want Jews in their ancient homeland of ISRAEL either, call them "occupiers," and demand that the land be given to descendants of Muslims who invaded Israel in the 7th century. - The EU (inspired by the Nazi boycotts against Jews) ...
Evolution maintains that as more time passes, living things evolve to acquire better and more useful traits. As such, shouldnt the loss of a useful trait, such as eyesight, be regarded as the opposite of evolution? Not so, say recent news reports on blind fish.. Biologists compared DNA sequences from 11 populations of cavefish (Astyanax mexicanus), which are a blind variation of the Mexican tetra fish, to 10 related fish populations that have the ability to see. Since they can interbreed, they are the same species.1. A New York University news release attributed the fishes loss of sight to convergent evolution, which makes little sense if evolution, as neo-Darwinists describe it, is supposed to generate new features and functions.. The blind fish do not trace their lineage to just one blind ancestor. In fact, the study authors wrote in BMC Evolutionary Biology, The results also demonstrate that cave populations in the region studied arose at least five times independently and derive from ...
ITS a diverse ecosystem, teeming with an array of unique wildlife - from electric eels to giant otters, and piranhas - yet the Amazon River hasnt finished revealing its treasures.
Cave animals have adapted to the challenges of life in perpetual darkness by losing their eyes and pigmentation and enhancing other sensory systems, such as taste, smell, and tactile senses. Although the sensory gains are easily explained by natural selection, the losses are more difficult to explain because they seem to have no immediate benefits. Recent studies in the Mexican cavefish (Astyanax mexicanus) show that eye degeneration is developmentally linked to adaptive gains in the gustatory system via evolutionary changes in a pleiotropic gene called sonic hedgehog. Thus, cavefish may illustrate a general phenomenon in biology in which pleiotropy and indirect selection guide the course and extent of evolution. Another benefit for cavefish living in dark caves is the absence of predators, which promotes survival by evolving an unusual suite of feeding behaviors. These behaviors would be risky in more complex, well-lit environments, such as exist on the Earths surface, illustrating the ...
Few things have inspired GMA anchorman Bill Weir more than untamed wilderness and the long line of explorers who have sailed over countless horizons or walked into the blank spots in maps with little more than a compass and a machete. No one has ever walked the Amazon River from the source to the sea -- until Ed Stafford.
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Some believe that a great conspiracy had arisen, and that Elvis body had been exhumed from Graceland and reburied without the mandible! The mandible was then said to have circulated between the Mafia, the CIA, the KGB, and the inventor of Pachisi (Parchesi) finally coming to rest in the hands of one Karl Joergins ...
December 2018. In This Edition Articles - Determination of heroin in street drug samples with printable surface enhanced Raman scattering (P-SERS) - Advances in Protein Sample Preparation: Centrifugation i.... ...
Heres how I look at it: if an animal lives in an environment in which change is infrequent and today can be expected to be a repeat of yesterday, then it makes sense for its way of life to evolve into a set of structured, repeated patterns triggered by familiar environmental stimuli. It saves a lot of energy, since there is no need to develop the neural complexity required to deal with change; energy is also saved in the day-to-day activities of life because theres less information processing to be done, and less physical hesitation and vacillation also. And in fact, most animal behaviour is of precisely this kind. Animals are mostly automatons ...
During her youth, Leela was often teased because she only had one eye. She felt very lonely in her childhood after being abandoned by her parents at an orphanarium, and always dreamed of learning who her real parents were. It should be noted that Leelas parents abandoned her in hopes that she would have a better life on the surface. She eventually learns that she is a mutant, rather than an alien, which she had always thought she was. Leela has been shown to care a great deal about her mutant parents, even stealing a priceless Quantum Gemerald from a museum along with Bender and Fry, when the Zookeeper threatens to feed them to piranhas. Despite her troubled past, Leela is friendly, smart and self-reliant, though she is sometimes impatient and quick to anger. She cares deeply for her friends and loved ones, plus issues she feels she must stand up for, like freedom, the environment and cute animals. However she does not hesitate to use force if she believes the situation demands it. She also has ...
My DJ Set last Friday at Club Sway in SD was a freaking blast! Thank you to all the homies who came out to support and watch my lard ass do my thang up on da stage (almost sounds like I stripped or sumthin). Still havent been able to gather any quality photos as of late but I was sent this amazing HD video by me bro. Too bad the only clip that was found was when I completely baunched it during my abso facking totes fav Ke$ha song (omg lol) because some asshole threw a George Michaels bobbing head doll at my mixer, knocked over the whole DJ booth, threw lighter fluid on the walls, unleashed piranas into all the kegs, summoned lightening bolts upon the club, and sat back laughing while the whole place erupted in fury ...
The fiberglass circuit board is 1.5" tall by 0.5" wide and 64 mils thick. It features metal pads in decorative shapes and 8 mil traces that are disguised but not concealed beneath a green solder mask. One side of the board displays a metal piranha plant spitting fire (a red LED) up into the air. The other side of the board is a field of traces and techno glory ...
The fiberglass circuit board is 1.5" tall by 0.5" wide and 64 mils thick. It features metal pads in decorative shapes and 8 mil traces that are disguised but not concealed beneath a green solder mask. One side of the board displays a metal piranha plant spitting fire (a red LED) up into the air. The other side of the board is a field of traces and techno glory ...
Weird gunky white stuff...is this ich? My 55 gallon with 2 bloody parrots is in trouble. All of a sudden last night before I went to bed I noticed weird...
Monterey Pine or Radiata Pine, as it is now commonly called among foresters internationally, is the most widely planted tree species in the world. Its tiny natural relict stands fall into insignificance to the millions of hectares planted in Australia, New Zealand, Chile, Argentina, Uruguay, South Africa, Kenya, and Spain. Provenance is almost exclusively from mainland California. Its spectacularly rapid growth under plantation conditions is the main reason for its success in commercial forestry and for many of the above mentioned countries it is the most important timber tree. The wood is rather brittle and coarse grained and most suitable for pulp wood, but in many countries where it has been introduced it is also put to other uses. These are e.g. construction, carpentry and joinery, veneers, furniture, laminated wood, and crates and boxes. This species has been widely planted as a landscape tree in urban areas, parks and large gardens, where it can grow to huge size in relatively short time. ...
Monterey Pine or Radiata Pine, as it is now commonly called among foresters internationally, is the most widely planted tree species in the world. Its tiny natural relict stands fall into insignificance to the millions of hectares planted in Australia, New Zealand, Chile, Argentina, Uruguay, South Africa, Kenya, and Spain. Provenance is almost exclusively from mainland California. Its spectacularly rapid growth under plantation conditions is the main reason for its success in commercial forestry and for many of the above mentioned countries it is the most important timber tree. The wood is rather brittle and coarse grained and most suitable for pulp wood, but in many countries where it has been introduced it is also put to other uses. These are e.g. construction, carpentry and joinery, veneers, furniture, laminated wood, and crates and boxes. This species has been widely planted as a landscape tree in urban areas, parks and large gardens, where it can grow to huge size in relatively short time. ...
The ecotoxicology of nano-TiO2 has been extensively studied in recent years; however, few toxicological investigations have considered the photocatalytic properties of the substance, which can increase its toxicity to aquatic biota. The aim of this work was to evaluate the effects on fish exposed to different nano-TiO2 concentrations and illumination conditions. The interaction of these variables was investigated by observing the survival of the organisms, together with biomarkers of biochemical and genetic alterations. Fish (Piaractus mesopotamicus) were exposed for 96 h to 0, I, 10, and 100 mg/L of nano-TiO2, under visible light, and visible light with ultraviolet (UV) light (22.47 J/cm(2)/h). The following biomarkers of oxidative stress were monitored in the liver: concentrations of lipid hydroperoxide and carbonylated protein, and specific activities of superoxide dismutase, catalase, and glutathione S-transferase. Other biomarkers of physiological function were also studied: the specific ...
The fish species Astyanax mexicanus exists in a form that exists above ground and has normal eyes and in forms that exist in caves (cavefish), which are blind and undergo degeneration of the eye. In evolutionary terms, the loss of the eye might simply reflect lack of selection for eyesight in cavefish. However, Yamamoto et al. present evidence that, instead, eye degeneration appears to have been derived as an adaptive trait driven by natural selection. Critical signals for eye development come from the cells of the anterior embryonic midline in the form of so-called hedgehog (Hh) proteins. In cavefish, eye primordia form but stop developing and degenerate. This phenotype appears to arise not from failure of Hh signaling, but rather from increased expression of Hh proteins in the developing cavefish embryo. Increased Hh signaling in wild-type embryos (induced by injection of mRNA encoding Hh proteins) produced adults that lacked an eye. Application of a pharmacological inhibitor of Hh signaling ...
Amson E. & M. Laurin. 2011. On the affinities of Tetraceratops insignis, an Early Permian synapsid. Acta Palaeontologica Polonica 56: 301 312.. Benton M. J. 1983. Dinosaur success in the Triassic: a noncompetitive ecological model. Quarterly Review of Biology 58: 29-55.. Berman D. S., R. R. Reisz, J. R. Bolt, and D. Scott. 1995. The cranial anatomy and relationships of the synapsid Varanosaurus (Eupelycosauria: Ophiacodontidae) from the Early Permian of Texas and Oklahoma. Annals of Carnegie Museum 64: 99-133.. Brinkman, D. and D. A. Eberth. 1983. The interrelationships of pelycosaurs. Breviora 473: 1-35.. Charig A. 1984. Competition between therapsids and archosaurs during the Triassic period: a review and synthesis of current theories. In: M. W. J. Ferguson (ed.) The structure, development and evolution of reptiles: 597-628. London: Academic Press. Gauthier, J., A. G. Kluge, and T. Rowe. 1988. Amniote phylogeny and the importance of fossils. Cladistics 4: 105-209.. Gauthier J., D. C. ...
Introduction. Goldband snapper (Pristipomoides multidens) has an unusually long shelf life compared to many other fish species. Previous studies have indicated that the microflora present on the fish skin influences shelf life, however, no extensive studies have been performed. A comprehensive investigation into the shelf life of goldband snapper was undertaken in this study using microbiological, biochemical, sensory and physical analyses. Saddletail snapper (Lutjanus malabaricus) was used as a control species because it is genetically similar to goldband snapper, found in a similar geographic location but has a shorter shelf life. The implications of discovering the reasons for an increased shelf life are significant for the Australian fishing industry, in particular Western Australia, where transit times are extensive. It may be possible to use the knowledge gained by investigating goldband snapper to extend the shelf life of other tropical fish species.Methods. Bacterial viable counts were ...
Arginine (Arg) and glycine (Gly) seem to be the only substrates accepted by the amidinotransferase that catalyze the first step of the synthesis pathway of the cyanotoxin cylindrospermopsin (CYN), leading to guanidinoacetate (GAA). Here, the effect of these amino acids on the production of CYN in cultures of the cylindrospermopsin-producing strain, Aphanizomenon ovalisporum UAM-MAO, has been studied. Arg clearly increased CYN content, the increment appearing triphasic along the culture. On the contrary, Gly caused a decrease of CYN, observable from the first day on. Interestingly, the transcript of the gene ntcA, key in nitrogen metabolism control, was also enhanced in the presence of Arg and/or Gly, the trend of the transcript oscillations being like that of aoa/cyr. The inhibitory effect of Gly in CYN production seems not to result from diminishing the activity of genes considered involved in CYN synthesis, since Gly, as Arg, enhance the transcription of genes aoaA-C and cyrJ. On the other hand,
This paper addresses the achievements in understanding the hydrogeological conditions in the low permeability claystone formation of the Opalinus Clay at the Mont Terri Rock Laboratory. The synthesis work consisted of (i) an assessment of clay-specific artifacts which may affect the interpretation of hydraulic tests, (ii) a survey of hydraulic rock properties such as hydraulic conductivity and storage coefficient, and (iii) an assessment of the governing flow laws and definition of hydrogeological units and flow boundaries on the site scale. Drawing on the broad hydrogeological data base, confidence is gained in the hydraulic barrier function of the Opalinus Clay, which effectively prevents groundwater flow between the over- and underlying aquifer systems ...
Popcorn clouds hovering in the skies over the Brazilian Amazon Rainforest help to highlight the channels of the Amazon River. The rivers mouth can be seen near the image center, where dense brown sediments are being released into the Atlantic Ocean.. The definition of where exactly the mouth of the Amazon is located, and how wide it is, a matter of dispute, because of the areas peculiar geography. The Pará and the Amazon are connected by a series of river channels called furos near the town of Breves; between them lies Marajó, an island almost the size of Switzerland that is the worlds largest combined river/sea island.. ...

CharaciformesCharaciformes

The order Characiformes includes a vast array of fishes that live in rivers and lakes of Africa and the New World (from Texas ... Characiformes Tetras, piranhas, hatchetfishes, headstanders, pencilfishes, and their relatives. Guillermo Ortí and Richard P. ... Characiformes are exclusively freshwater fishes that live in streams, rivers, and lakes (marked red). Distribution in Africa ... Characiformes share with other otophysan fishes a strucuture called the Weberian apparatus, which is a distinctive modification ...
more infohttp://tolweb.org/Erythrinidae

Characiformes - WikipediaCharaciformes - Wikipedia

Characiformes forms a group known as Characiphysi with Siluriformes and Gymnotiformes. Characiformes is the sister group to the ... Characiformes is an order of ray-finned fish, comprising the characins and their allies. Grouped in 18 recognized families, ... Characiformes form part of a series called Otophysi within the superorder Ostariophysi. Otophysi contains three other orders, ... Superficially, the Characiformes somewhat resemble their relatives of the order Cypriniformes, but have a small fleshy adipose ...
more infohttps://en.wikipedia.org/wiki/Characiformes

Genetic variability of Prochilodus lineatus (Characiformes, Prochilodontidae) in the upper Paraná riverGenetic variability of Prochilodus lineatus (Characiformes, Prochilodontidae) in the upper Paraná river

... ... Characiformes: Prochilodontidae) embryogenesis. I. Lactate dehydrogenase. Comp. Biochem. Physiol. 97: 235-246. [ Links ]. ... Characiformes: Prochilodontidae) embryogenesis. II. Soluble malate dehydrogenase. Comp. Biochem. Physiol. 97: 247-255. [ Links ...
more infohttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84551997000300005&lng=es&nrm=iso

New species of Cyphocharax (Characiformes: Curimatidae) from the upper rio Negro, Amazon basinNew species of Cyphocharax (Characiformes: Curimatidae) from the upper rio Negro, Amazon basin

New species of Steindachnerina (Characiformes: Curimatidae) from the Rio Tapajós, Brazil, and review of the genus in the Rio ... Description of a new small species of the genus Cyphocharax (Characiformes: Curimatidae) from the lower Amazon basin. Copeia, ... Description of a new species of Steindachnerina (Teleostei: Characiformes: Curimatidae) from the upper Rio Paraná basin, Brazil ... New species of Cyphocharax (Ostariophysi: Characiformes: Curimatidae) from Suriname and French Guiana and a discussion of ...
more infohttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252014000200327&lng=en&tlng=en

Caenotropus schizodon, a new chilodontid fish from the Rio Tapajos drainage, Brazil (Ostariophysi: Characiformes: Chilodontidae...Caenotropus schizodon, a new chilodontid fish from the Rio Tapajos drainage, Brazil (Ostariophysi: Characiformes: Chilodontidae...

Caenotropus schizodon, a new chilodontid fish from the Rio Tapajos drainage, Brazil (Ostariophysi: Characiformes: Chilodontidae ... Characiformes: Chilodontidae)… Checklist dataset https://doi.org/10.15468/souutn accessed via GBIF.org on 2018-09-20. ... Characiformes: Chilodontidae). Zootaxa 1557: 59-66, URL: http://www.zoobank.org/urn:lsid:zoobank.org:pub:2C27E612-8460-4171- ...
more infohttps://www.gbif.org/dataset/24b74b65-a402-4387-b73b-bb4664bb0fa6

A new species of Cacatuocotyle (Monogenea, Dactylogyridae) parasitizing Astyanax spp. (Characiformes, Characidae) from Brazil,...A new species of Cacatuocotyle (Monogenea, Dactylogyridae) parasitizing Astyanax spp. (Characiformes, Characidae) from Brazil,...

Characiformes, Characidae) from the Southeast of Brazil, supported by morphological and molecular data. The new species differs ... Characiformes, Characidae) from Brazil, including molecular data and a key to species identification ... Characiformes, Characidae) from Brazil, including molecular data and a key to species identification ... Characiformes, Characidae) from Brazil, including molecular data and a key to species identification. ...
more infohttps://www.degruyter.com/view/j/ap.2018.63.issue-2/ap-2018-0030/ap-2018-0030.xml?format=INT

A new ectoparasitic distichodontid of the genus Eugnathichthys (Characiformes: Citharinoidei) from the Congo basin of central...A new ectoparasitic distichodontid of the genus Eugnathichthys (Characiformes: Citharinoidei) from the Congo basin of central...

A new ectoparasitic distichodontid of the genus Eugnathichthys (Characiformes: Citharinoidei) from the Congo basin of central ... Characiformes: Citharinoidei) from the Congo basin of central Africa, with a molecular phylogeny for the genus. Plazi.org ... Characiformes: Citharinoidei) from the Congo basin of central Africa, with a molecular phylogeny for the genus. Zootaxa 3693 (4 ...
more infohttps://www.gbif.org/dataset/858bf886-02d9-40d9-b3ea-820dffc18fc6

Comparative analysis of sex chromosomes in Leporinusspecies (Teleostei, Characiformes) using chromosome painting | BMC Genetics...Comparative analysis of sex chromosomes in Leporinusspecies (Teleostei, Characiformes) using chromosome painting | BMC Genetics...

Pisces, Anostomidae, Characiformes). Genetica. 2004, 121: 75-80.View ArticlePubMedGoogle Scholar. ... Galetti PM, Lima NRW, Venere PC: A monophyletic ZW sex chromosome system in Leporinus (Anostomidae, Characiformes). Cytologia. ... Comparative analysis of sex chromosomes in Leporinusspecies (Teleostei, Characiformes) using chromosome painting. ... Characiformes: Anostomidae). Genetica. 2007, 129: 253-257. 10.1007/s10709-006-0005-6.View ArticlePubMedGoogle Scholar. ...
more infohttps://bmcgenet.biomedcentral.com/articles/10.1186/1471-2156-14-60

Marcadores cromossômicos em Hoplias malabaricus (Characiformes, Erythrinidae). Citogenética comparativa entre cariomorfosMarcadores cromossômicos em Hoplias malabaricus (Characiformes, Erythrinidae). Citogenética comparativa entre cariomorfos

Hoplias malabaricus, a widespread Erythrinidae fish, is characterized by a karyotypic diversity, with seven karyomorphs already described. This report presented a comparative study of the karyomorphs A, B, C and D, which were previously included in a major karyotypic group (Group I), in order to evaluate the evolutionary relationships among them. The in situ investigation of several classes of repetitive DNAs added new informative characters useful in comparative genomics and provided new insights into the evolutionary relationships among karyomorphs. In addition to corroborate the inclusion of karyomorphs A-D in a close evolutionary group, the results provide further evidence for a greater proximity between the karyomorphs A-B and karyomorphs C-D. A comparative analysis among distinct populations of karyomorph A demonstrated a continuing genomic differentiation in this group, allowing the detection of recent evolutionary events, suggesting that this karyomorph cannot be considered an absolute ...
more infohttps://repositorio.ufscar.br/handle/ufscar/5467

Redescription of Moenkhausia megalops (Eigenmann, 1907), a widespread tetra from the Amazon basin (Characiformes, Characidae)Redescription of Moenkhausia megalops (Eigenmann, 1907), a widespread tetra from the Amazon basin (Characiformes, Characidae)

Géry J, Zarske A (2004) Moenkhausia heikoi n. sp., a new tetra (Teleostei: Ostariophysi: Characiformes: Characidae) from the ... Petrolli MG, Azevedo-Santos VM, Benine RC (2016) Moenkhausia venerei (Characiformes: Characidae), a new species from the rio ... Azevedo-Santos VM, Benine RC (2016) A new species of Moenkhausia (Characiformes, Characidae) from the Içá River, Amazon Basin, ... Petrolli MG, Benine RC (2015) Description of three new species of Moenkhausia (Teleostei, Characiformes, Characidae) with the ...
more infohttps://zse.pensoft.net/article_preview.php?id=10837

Karyotype differentiation and cytotaxonomic considerations in species of Serrasalmidae (Characiformes) from the Amazon basin |...Karyotype differentiation and cytotaxonomic considerations in species of Serrasalmidae (Characiformes) from the Amazon basin |...

Karyotype differentiation and cytotaxonomic considerations in species of Serrasalmidae (Characiformes) from the Amazon basin. ...
more infohttp://adapta.inpa.gov.br/?p=1857

Cytogenetic analysis in the incertae sedis species Astyanax altiparanae Garutti and Britzki, 2000 and Hyphessobrycon eques...Cytogenetic analysis in the incertae sedis species Astyanax altiparanae Garutti and Britzki, 2000 and Hyphessobrycon eques...

Cytogenetic analyses were accomplished in two populations of Astyanax altiparanae Garutti & Britzki, 2000 and one population of Hyphessobrycon eques Steindachner, 1882, considered incertae sedis in Characidae family. Two populations of A. altiparanae (Mogi-Guaçu and Tietê rivers) presented 2n=50, with the same karyotype formula: 6M+12SM+20ST+12A (FN=88). H. eques from Capivara river presented 2n=52 and karyotype formula 14M+16SM+4ST+18A (FN=86). In each karyotype, the nucleolus organizer regions were detected at the end of the short arm of a single medium-sized subtelocentric chromosome. The Chromomycin A3 (CMA3) marking is coincident for the NORs in chromosomes of the two species and present additionally in two different chromosomes of A. altiparanae thus showing interpopulation differences in this species. In H. eques, weak heterochromatic blocks in the position of centromeres and telomeres of most chromosomes and negative C-banding for the NOR bearing chromosome were visualized. The obtained
more infohttps://compcytogen.pensoft.net/article/1745

GENOTOXIC EFFECTS OF METHYLMERCURY ON THE FISH  Colossoma macropomum  (CHARACIFORMES: CHARACIDAE) AS EVALUATED USING THE COMET...GENOTOXIC EFFECTS OF METHYLMERCURY ON THE FISH Colossoma macropomum (CHARACIFORMES: CHARACIDAE) AS EVALUATED USING THE COMET...

CHARACIFORMES: CHARACIDAE) AS EVALUATED USING THE COMET ASSAY ... CHARACIFORMES: CHARACIDAE) AS EVALUATED USING THE COMET ASSAY. ...
more infohttp://uakari.mamiraua.org.br/UAKARI/article/view/99

Species New to Science: [Ichthyology • 2017] Tometes siderocarajensis • A New Species of Tometes Valenciennes 1850 ...Species New to Science: [Ichthyology • 2017] Tometes siderocarajensis • A New Species of Tometes Valenciennes 1850 ...

Characiformes (41) Charadriiformes (1) Checklist (23) Cheirogaleidae (5) Chelonia - Turtle; Tortoise (41) Chile (16) Chilopoda ... ป้ายกำกับ: 2017, Actinopterygii, Characiformes, Freshwater, Ichthyology - Fish, Integrative Taxonomy, Journal: PLoS ONE, ... Ichthyology • 2017] Tometes siderocarajensis • A New Species of Tometes Valenciennes 1850 (Characiformes: Serrasalmidae) from ... A New Species of Tometes Valenciennes 1850 (Characiformes: Serrasalmidae) from Tocantins-Araguaia River Basin Based on ...
more infohttp://novataxa.blogspot.com/2017/04/tometes-siderocarajensis.html

A new species of Tometes Valenciennes 1850 (Characiformes : Serrasalmidae) from Tocantins-Araguaia River Basin based on...A new species of Tometes Valenciennes 1850 (Characiformes : Serrasalmidae) from Tocantins-Araguaia River Basin based on...

A new species of Tometes Valenciennes 1850 (Characiformes : Serrasalmidae) from Tocantins-Araguaia River Basin based on ... Characiformes : Serrasalmidae) from Tocantins-Araguaia River Basin based on integrative analysis of molecular and morphological ...
more infohttp://www.documentation.ird.fr/hor/fdi:010070034

Is the Family Characidae Monophyletic?Is the Family Characidae Monophyletic?

Characiformes). Unpublished Ph.D. thesis, Universidade de Sao Paulo, Brasil. ...
more infohttp://www.tolweb.org/accessory/Is_the_Family_Characidae_Monophyletic?acc_id=472

Molecular Studies of Characiform PhylogenyMolecular Studies of Characiform Phylogeny

Characiformes People options. *Setting Preferences. *Show Glossary Entries. Explore Other Groups. other Ostariophysi. * ...
more infohttp://tolweb.org/notes/?note_id=473

Laboratório de Ictiologia - Universidade Federal do Rio Grande do SulLaboratório de Ictiologia - Universidade Federal do Rio Grande do Sul

A new species of Curimatopsis Steindachner(Characiformes: Curimatidae) from the Rio Nhamundá,Amazon basin DUTRA G.M., MELO, B.F ... Two new species of Odontostilbe historically hidden under O. microcephala (Characiformes: Cheirodontinae) Junior Chuctaya, ... Characiformes are preferred hosts, but host choice depends on what characiform species are available in their environments, ... New species of Creagrutus (Ostariophysi; Characiformes; Characidae) from the Rio Xingu drainage ANDRE L. NETTO-FERREIRA & ...
more infohttps://www.ufrgs.br/ictio/

Category:Hydrolycus scomberoides - Wikimedia CommonsCategory:Hydrolycus scomberoides - Wikimedia Commons

Characiformes • Familia: Cynodontidae • Genus: Hydrolycus • Species: Hydrolycus scomberoides ...
more infohttps://commons.wikimedia.org/wiki/Category:Hydrolycus_scomberoides

Paracheirodon innesi - Wikimedia CommonsParacheirodon innesi - Wikimedia Commons

Characiformes • Familia: Characidae • Subfamilia: Tetragonopterinae • Genus: Paracheirodon • Species: Paracheirodon innesi ( ...
more infohttps://commons.wikimedia.org/wiki/Neon_tetra

Checklist of the parasites of fishes of the PhilippinesChecklist of the parasites of fishes of the Philippines

ORDER CHARACIFORMES. FAMILY CHARACIDAE. Moenkhausia collettii Steindachner. Colletts tetra. Status: exotic. (-). Habitat: ...
more infohttp://www.fao.org/docrep/field/009/w6598e/W6598E05.htm

Encyclopedia of LifeEncyclopedia of Life

Characiformes » Characoidei » Lebiasinidae » Nannostomus « ...
more infohttps://eol.org/pages/1012087/names

Red-bellied piranha | Smithsonians National ZooRed-bellied piranha | Smithsonian's National Zoo

True to their name, red-bellied piranhas have red undersides. Their bodies are gray and flecked with bright, silver scales. Native to the Amazon River basin, these fish are important scavengers. They tend to travel in schools of 20 or more.
more infohttps://nationalzoo.si.edu/animals/red-bellied-piranha

Peix destral de riu - Viquipèdia, lenciclopèdia lliurePeix destral de riu - Viquipèdia, l'enciclopèdia lliure

Characiformes. Família. Gasteropelecidae. Gènere. Gasteropelecus Espècie. Gasteropelecus sternicla. (Linnaeus, 1758)[1][2][3]. ...
more infohttps://ca.wikipedia.org/wiki/Peix_destral_de_riu
  • This dataset contains the digitized treatments in Plazi based on the original journal article Denton, Melanie L. J. Stiassny John S. S., Monsembula Iyaba, Raoul J. C. (2013): A new ectoparasitic distichodontid of the genus Eugnathichthys (Characiformes: Citharinoidei) from the Congo basin of central Africa, with a molecular phylogeny for the genus. (gbif.org)
  • Characiformes forms a group known as Characiphysi with Siluriformes and Gymnotiformes. (wikipedia.org)
  • Characiformes is the sister group to the orders Siluriformes and Gymnotiformes, though this has been debated in light of recent molecular evidence. (wikipedia.org)