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 ...

Ultrastructural analyses of fish-infecting myxosporean Henneguya piaractus that is found in the gill lamellae of the freshwater teleost Piaractus mesopotamicus (Characidae) and collected from the Paraguai River, Brazil were described. The parasite occurs within large whitish spherical to ellipsoidal polysporic cysts (up to 2.5 mm long) delimited by a layer of fibroblasts generally connected with some capillaries on the gill epithelium. No external morphological signs of disease were visible in the infected fishes. The tailed spores measured 61.5 ± 0.91 (60.2-62.6) μm in total length and ellipsoidal spore body 21.1 ± 0.62 (20.6-21.9) μm long, 6.7 ± 0.40 (6.2-7.3) μm wide and 2.5 ± 0.54 (2.0-3.1) μm thick. The spore wall was about 97 nm of thickness and consisted of a thin electron-dense exospore and a thick electron-lucent endospore with about 85 nm of thickness. The tailed spores were composed of two equal-sized shell valves adhering together along the straight suture line each having in ...

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 ...

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. ...

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Discussion. Astyanax is a highly diverse and taxonomically complex genus and its taxonomy and relationships seems to be far from a reasonable understanding. The diagnostic combination of characters proposed by Eigenmann (1921, 1927) to distinguish Astyanax from other genera of the Characidae is very variable and presents great overlap. These problems are more evident distinguishing Astyanax from Hemigrammus Gill, Bryconamericus Eigenmann, Moenkhausia Eigenmann, and Hyphessobrycon Durbin. As a practical example, according to Eigenmann (1921, 1927) Astyanax is distinguished from Bryconamericus mainly by the presence of five inner premaxillary teeth (vs. four teeth) and reduced size of the third infraorbital bone, which is not in contact with the preopercle (vs. expanded third infraorbital in contact with preopercle). Nevertheless, these characters are not exclusive from Astyanax and are widely distributed and variable among characid genera.. Malabarba & Weitzman (2003) hypothesized a monophyletc ...

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) ...

ID W5LPY5_ASTMX Unreviewed; 1954 AA. AC W5LPY5; DT 16-APR-2014, integrated into UniProtKB/TrEMBL. DT 16-APR-2014, sequence version 1. DT 31-JAN-2018, entry version 33. DE RecName: Full=Sodium channel protein {ECO:0000256,RuleBase:RU361132}; 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:ENSAMXP00000022015, ECO:0000313,Proteomes:UP000018467}; RN [1] {ECO:0000313,Ensembl:ENSAMXP00000022015, ECO:0000313,Proteomes:UP000018467} RP NUCLEOTIDE SEQUENCE. RC STRAIN=female {ECO:0000313,Ensembl:ENSAMXP00000022015}; RA Jeffery W., Warren W., Wilson R.K.; RL Submitted (MAR-2013) to the EMBL/GenBank/DDBJ databases. RN [2] {ECO:0000313,Ensembl:ENSAMXP00000022015} RP IDENTIFICATION. RG Ensembl; RL Submitted (FEB-2014) to ...

Warren WC, Boggs TE, Borowsky R, Carlson BM, Ferrufino E, Gross JB, Hillier L, Hu Z, Keene AC, Kenzior A, Kowalko JE, Tomlinson C, Kremitzki M, Lemieux ME, Graves-Lindsay T, McGaugh SE, Miller JT, Mommersteeg MTM, Moran RL, Peuss R, Rice ES, Riddle MR, Sifuentes-Romero I, Stanhope BA, Tabin CJ, Thakur S, Yamamoto Y, Rohner N. Nat Commun. 2021;12:1447 ...

TY - JOUR. T1 - Species delimitation of neotropical Characins (Stevardiinae). T2 - Implications for taxonomy of complex groups. AU - García-Melo, Jorge E.. AU - Oliveira, Claudio. AU - Da Costa Silva, Guilherme José. AU - Ochoa-Orrego, Luz E.. AU - Garcia Pereira, Luiz Henrique. AU - Maldonado-Ocampo, Javier A.. PY - 2019/6/1. Y1 - 2019/6/1. N2 - Accurate species delimitation is crucial for studies of phylogeny, phylogeography, ecology, conservation and biogeography. The limits of species and genera in the Characidae family are controversial due to its uncertain phylogenetic relationships, high level of morphological homoplasy and the use of ambiguous morphological characters for descriptions. Here we establish species boundaries for Bryconamericus, Hemibrycon, Knodus and Eretmobrycon (Stevardiinae: Characidae), previously diagnosed with morphology, using three different barcoding approaches (GMYC, PTP, ABGD). Results revealed that species delimitation was successful by the use of a ...

Guiry, Michael D. (2010). Chlorophyta incertae sedis. In: Guiry, M.D. & Guiry, G.M. (2017). AlgaeBase. World-wide electronic publication, National University of Ireland, Galway (taxonomic information republished from AlgaeBase with permission of M.D. Guiry). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=369188 on 2017-12- ...

Kroh, A. (2012). Holasteroida incertae sedis. In: Kroh, A. & Mooi, R. (2017). World Echinoidea Database. Accessed through: World Register of Marine Species at http://marinespecies.org/aphia.php?p=taxdetails&id=510772 on 2018-01- ...

在该方案中, 我们演示了如何繁殖成虫, 饲养幼虫, 并在幼虫后的鱼类上进行全身免疫组织化学检查,...

Contents of this page belong to www.fishlookup.com The diamond tetra (Moenkhausia pittieri) is a small freshwater fish of the characin family (family Characidae) of order Characiformes. It is found in and around Lake Valencia in Venezuela, South America. This species exhibits clear sexual dimorphism, with males having much longer dorsal fins than the females. Males also tend to be more brightly coloured, but both sexes are attractive fish and have become popular with aquarists. The dorsal and anal fins are purple and the body is silver. The eye is marked with red above the pupil, and there is a dark band running along the midline of the body. Their common name comes from the bright, iridescent scales along the flanks. Maintenance in aquaria is simple as similar to that of other tetras, although they will not do as well in hard, alkaline water as they do in soft, slightly acidic water filtered through peat (Riehl & Baensch, 1996).. ...

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 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 ...

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 ...

For the past two decades, WKU biologist Steve Huskey has studied the feeding habits of various species of fish from sharks and goliath groupers to bass and bluegill.. Now hes revisiting another research subject - piranha. And he plans to conduct bite force tests on redbelly, redeye and piraya piranhas in his lab in the Complex for Engineering and Biological Sciences.. When it comes to mastery of fish jaws in terms of biting, it just doesnt get any better than piranhas, said Dr. Huskey, associate professor in WKUs Department of Biology.. However, he noted, piranhas arent the blood-thirsty creatures depicted in movies.. Its such an enigmatic creature, Dr. Huskey said. You say the word piranha and even my 6-year-old knows what they are. The vast majority of people fear them, unrightly so, but they do. Theres just not much known about them. From what we can tell, theyve even got very sophisticated hearing capabilities, but its also something were not that knowledgeable about.. Some of ...

The eyeless cavefish Astyanas mexicanus is a special system in which we can look at evolution in action, says article co-author William Jeffery, a senior adjunct scientist at the Marine Biological Laboratory (MBL) in Woods Hole, Mass., and a professor at the University of Maryland. The Science study was led by Nicolas Rohner and Clifford J. Tabin at Harvard Medical Schools Department of Genetics.. Using the cavefish, the team demonstrated for the first time in nature how standing or cryptic genetic variations in an animal, which have been inherited from prior generations without causing any physical changes in the animal, can be unmasked by the shock of entering a new environment. Gene variants that improve the animals ability to adapt to that new environment can then be selected for, and passed on to its progeny. This is distinct from the established evolutionary mechanism of de novo genetic mutations that arise by chance after the animal has entered the new environment, which also ...

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Lima, F.C.T., L.R. Malabarba, P.A. Buckup, J.F. Pezzi da Silva, R.P. Vari, A. Harold, R. Benine, O.T. Oyakawa, C.S. Pavanelli, N.A. Menezes, C.A.S. Lucena, M.C.S.L. Malabarba, Z.M.S. Lucena, R.E. Reis, F. Langeani, C. Moreira et al. …, 2003. Genera Incertae Sedis in Characidae. p. 106-168. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 38376 ...

Lima, F.C.T., L.R. Malabarba, P.A. Buckup, J.F. Pezzi da Silva, R.P. Vari, A. Harold, R. Benine, O.T. Oyakawa, C.S. Pavanelli, N.A. Menezes, C.A.S. Lucena, M.C.S.L. Malabarba, Z.M.S. Lucena, R.E. Reis, F. Langeani, C. Moreira et al. …, 2003. Genera Incertae Sedis in Characidae. p. 106-168. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 38376 ...

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David Hasselhoff heads back to the water in this years PIRANHA 3DD. He joins the previously announced cast which includes Ving Rhames, Christopher Lloyd, Paul Scheer, Gary Busey, Katrina Bowden, Danielle Panabaker, Matt Bush, Chris Zylka and David Koechner.. Trading in the sandy beaches of Baywatch for terror at The Big Wet Water Park, Hasselhoff will face off with the flesh eating fish of PIRANHA 3DD.. A Dimension Films release, PIRANHA 3DD opens nationwide on November 23, 2011.. I am just glad to see a ridiculous sequel to this movie. I only wish there would have been or there will be a sequel to Snakes on A Plane. I know, you know, we all know Sam is up for it. Snakes on a Cruise. But that cast only means we are in for one hell of a crazy fucking ride.. ...

PIRANHA (Stimulateur racinaire) Les éléments nutritifs bénéfiques champignons avancée a rejoint Piranha de Advanced Nutrients, sont le complément parfait à Voodoo Juice de Advanced Nutrients. Alors que Voodoo Juice colonise la zone racinaire avec des bactéries bénéfiques, Piranha avec 24 champignons bénéfiques. ...

You searched for: Collection herbarium Remove constraint Collection: herbarium Family Pucciniaceae Remove constraint Family: Pucciniaceae Kingdom Fungi Remove constraint Kingdom: Fungi Phylum or Division Fungi Incertae Sedis Remove constraint Phylum or Division: Fungi Incertae Sedis ...

This study describes the hematological alterations in Astyanax altiparanae associated with infestation with Lernaea cyprinacea. The study was carried out in a lagoon of the Mogi-Guaçu River, in the municipality of Pirassununga, in the state of São Paulo, Brazil. Of 46 fish examined, 45.6% had their integument infested by L. cyprinacea, with a mean intensity of 4.9 parasites per fish and a mean abundance of 2.2, giving a total of 139 recovered crustaceans. The abundance of L. cyprinacea correlated positively with the length and weight of the hosts, and the intensity of infestation was higher in female hosts ...

Bayesian length-weight: a=0.01023 (0.00484 - 0.02165), b=3.01 (2.84 - 3.18), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245 ...

Of course, if Dr. Wieland had bothered to read the actual article (rather than merely the press reports that creationists are so fond of) he would have found that Astayanax mexicanus evolved from eyed, surface-dwelling forms which only reached the area in the mid-Pleistocene, that is, between 600,000 to 1 million years ago. How does Borowsky know this? This is where references matter. Earlier research by Ulrike Strecker and colleagues, published in Molecular Phylogenetics and Evolution (subscription required) showed that mutations occur in freshwater fish at a rate of 1.5% per million years. By analyzing the differences in cytochrome b genes between currently living species and then dating the nearest common ancestor of each in the fossil record, Strecher et al. proposed that Astyanax first arrived in the Yucatan no earlier than 900,000 years ago, just as Borowsky states. How can Wieland be so certain that it would not take long at all for such mutations to occur? Not presenting any evidence ...

GenDR A curated database of genes associated with dietary restriction in model organisms either from genetic manipulation experiments or gene expression profiling.. ...

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

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.

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

K. Fučíková, P.O. Lewis & L.A. Lewis. In press. Putting incertae sedis taxa in their place: a proposal for ten new families and three new genera in the Sphaeropleales (Chlorophyta). Journal of Phycology ...

Lineage: cellular organisms; Bacteria; Terrabacteria group; Firmicutes; Clostridia; Thermoanaerobacterales; Thermoanaerobacterales Family III. Incertae Sedis; Caldicellulosiruptor; Caldicellulosiruptor ...

Name: [Bacteria, not assigned to phylum]. Category: Phylum. Proposed as: LPSN placeholder (potentially permanent). Nomenclatural status: artificial parent node of taxa incertae sedis ...

Ugly or cute? A new tetra species - Moenkhausia lineomaculata is the newest described species of characids. A diminutive cousin to the diamond tetra and red eye tetra, M.lieomaculata is the 80th species of the genus.

Words That End In cid: acid,alcid,antacid,bombycid,cercopithecid,chalcid,characid,coccid,culicid,diacid,dytiscid,flaccid,hydracid,hyperacid,hypoacid,inviscid,lucid,monacid,monoacid,mucid,muscid,nonacid,oxyacid,pellucid,pera

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 ...

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

The Mexican blind cavefish navigates through the dark by producing waves with its mouth in a previously unknown form of sightless navigation.

The same methods of study are applied to a number of North American, Eurasian and African species. For the sake of comparison, some Hemphillian equids were observed (Dinohippus interpolatus, Dinohippus leidyanus, Astrohippus ansae, Phiohippus mexicanus) but most of the discussed material belongs to Pliocene or Pleistocene species of Equus : the « stenonine ›› E. stenonis, E. simplicidens, E. sanmeniensis and E. teilhardi; the « caballine ›› E. scotti, E. lambei, E. Iaurentius, E. mosbachensis, E. germanicus, E. gallicus, E. taubachensis and the Liakhov horse. The relationships of other species, in particular the North American E. calobatus, E. occidentalis, E. cf mexicanus are not clear for the moment. ln Africa, the Plio-Pleistocene species from Koobi Fora (Kenya) show some stenonine and perhaps asinine affinities. The relationships of E. numidicus and E. tabeti are uncertain but these species are probably related to the East African ones. E. mauritanicus is most certainly related to ...

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/ ...

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 ...

There were significant within-treatment differences (ANOVA) for both cyclophosphamide (F = 8.38; P £ 0.05) and vinblastine sulfate (F = 8.54; P £ 0.05), and also when compared with their respective control group. The Student-Newman-Keuls test indicated that the cyclophosphamide doses of 4 and 32 mg/kg body weight did not alter the frequency of MN compared to the control, whereas the other doses (8 and 16 mg/kg body weight) significantly increased the frequency of MN. The frequencies of MN for cyclophosphamide concentrations of 8 and 32 mg/kg body weight were similar and did not differ significantly to the values observed with the dose of 4 mg/kg body weight. Likewise, the responses to 8 and 16 mg/kg body weight were also similar. There were no significant differences in the frequency of MN among the different doses of vinblastine sulfate used. However, the MN frequencies with all of the doses were significantly higher than in the control group. DISCUSSION Cytogenetic methods are probably the ...

Note: Zeledonia coronata is placed under Passeriformes Family Incertae Sedis 2 (Familia) by IOC classification 4.4, under Passeriformes Family Incertae Sedis 3 (Familia) by IOC classification 4.3, under Passeriformes Family Incertae Sedis 5 (Familia) by IOC classification 3.5 and under Passeriformes Family Incertae Sedis 6 (Familia) by IOC classification 3.1 ...

PubMed journal article: The effects of selenium on oxidative stress biomarkers in the freshwater characid fish matrinxã, Brycon cephalus (Günther, 1869) exposed to organophosphate insecticide Folisuper 600 BR (methyl parathion). Download Prime PubMed App to iPhone, iPad, or Android

Characin fish guide for Neon Tetra, Paracheirodon innesi, fish pictures, description and information, Neon Tetra care, habitat, tankmates, lifespan, and breeding, Neon Tetra disease and keeping the Neon Tetra aquarium

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 ...

Astyanax mexicanus is a species of fish in which the evolution of cave-dwelling strains from surface-dwelling stains has involved the loss of eyes as an adaptation to the dark environment in caves. Given the known ability of HSP90 to buffer morphological variation in various model species, Rohner et al. investigated whether this also occurred for eye morphology in A. mexicanus by treating embryos of sighted, surface-dwelling strains with the HSP90 inhibitor radicicol. This resulted in a wider variability in both eye and eye socket sizes in the resulting adult population, which implies that HSP90-buffered cryptic variation can contribute to variation in eye morphology when such buffering is overcome. By contrast, the same treatments in cave-adapted strains resulted in a reduction in the size of the empty eye sockets without a change to the variability in their sizes. This is consistent with a role for cryptic variation in the evolution of the eyeless trait, through which the subset of small-eye ...

Cliffs of the Neuse State Park celebrates the frog, Haw River State Park celebrates wild flowers, and Asheville celebrates the fleet of foot with a trail run. It all happens Saturday, your last chance to celebrate April.. By Emily Reeves, intern. Coast: Save the Frogs. April 30 - Saturday - is International Save the Frogs Day; Cliffs of The Neuse State Park near Goldsboro promises a hopping good celebration in observance. Participants will be able to take part in various activities that give you the chance to learn about the challenges frogs face.. After a presentation in the Visitor Center, there will be a hike in search of frogs residing in the park.. Saturday forecast: High of 79, low of 61, mostly cloudy.. Vital Stats: Save the Frogs Day, Cliffs of the Neuse State Park, Saturday, 2 p.m., meet at the Visitor Center. Contact [email protected], call 919.778.6234, or go here for more information.. Looking ahead: Fitness Hike at Goose Creek State Park, Washington, Saturday, May 7, 10 a.m, ...

Looking for Prineville Reservoir State Park? Find out information about Prineville Reservoir State Park. Parks Directory of the United States / State Parks / Oregon Location: Off US 26, 14 miles southeast of Prineville. Facilities: 22 full hookup campsites, 52... Explanation of Prineville Reservoir State Park

Looking for Grand Mere State Park? Find out information about Grand Mere State Park. Parks Directory of the United States / State Parks / Michigan Location: Off I-94, in southwestern Michigan. Facilities: Picnic area , shelter , boat launch,... Explanation of Grand Mere State Park

Cynodontidae (sensu Lucena & Menezes, 1998) é uma família de Characiformes com 14 espécies válidas divididas em duas subfamílias (Cynodontinae e Roestinae). As espécies de Cynodontinae sempre foram classificadas...

Promotores de crescimento são substâncias, naturais ou sintéticas, ou mesmo organismos vivos, adicionados às dietas que permitem aumentar o ganho de peso, melhorar a eficiência alimentar e reprodutiva, bem como diminuir a mortalidade dos animais. Dentre as classes de promotores de crescimento, os óleos essenciais destacam-se por serem substancias naturais e seguras do ponto de vista da saúde dos animais, dos humanos e do meio ambiente. Entre os óleos essenciais com potencial para ser utilizado como promotor de crescimento destaca-se o óleo de orégano, Origanum vulgare, devido suas propriedades antibacteriana, anti-oxidante, antifúngica, anti-inflamatória, anti-helmíntica e estimulante da digestão. Suas propriedades são atribuídas à presença dos fenóis carvacrol e timol e os monoterpenos γ-terpineno e ρ-cimeno, entre outros. Assim, com o presente estudo objetivou-se avaliar os efeitos do óleo de orégano sobre o desempenho produtivo, reservas energéticas e ...

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 ...

Concrete foundations in the campground and picnic areas of the park are remnants of a transient work camp built there in 1934 by the State. The camp provided work and lodging for men displaced during the Depression years. In addition to building trails, logging, and completing public service projects, these men helped fight a fire in 1935 that burned more than 10,000 acres in the area. Later the men set up a sawmill and began to salvage fire-damaged wood.. In 1957, a 940-acre parcel of forest along the Brule River was set aside as Brule River State Park. The park became Judge C. R. Magney State Park in 1963 when the Minnesota legislature selected this park as a memorial to the late Judge Magney, a lawyer, mayor of Duluth, justice of the Minnesota Supreme Court, and a strong advocate of Minnesota State Parks, especially those along the North Shore. With his influence, he was instrumental in establishing 11 state parks and waysides along Lake Superior. Over the years, parcels of land have been ...

Abstract Aside from Madtsoiidae, anilioids, and Boidae that were studied previously, the middle Palaeocene of ltaborai (BraziI) has produced Ungaliophiinae (tropidophiids), booid-grade snakes incertae sedis, and a possible Russellophiidae (Caenophidia) that are described in the present article. This article is the third and final report on the snakes from the locality. The Ungaliophiinae (Paraungaliophis pricei gen. et sp. nov.) are rare whereas the booid-grade snakes incertae sedis (ltaboraiophis depressus gen. et sp. nov., Paulacoutophis perplexus gen. et sp. nov.) are more frequent. A single vertebra is referred to the Russellophiidae (Caenophidia) with reservation. An update of the whole fauna of snakes from ltaborai is provided. Hechtophis austrinus that was tentatively referred to the erycine Boidae is now regarded as a Boidae incertae sedis. Most snakes from Itaborai are known only from the locality. Astonishingly, only the ailioids Coniophis cf. C. precedens gives possible evidence of ...

We did it. A mom, 2 kids, and a Grandmother, 50 hours, 436 miles, Over 8 hours in the car, 0 bathroom breaks during said drives, 4 State Parks, 3 State Park Restaurants, 2 State Park Lodges, 3 Hikes totalling 6.7 miles, 1,438 pictures taken. And it only took me a month to actually blog about […]

After my stay at Indian Springs I headed over to Franklin Roosevelt State Park for a five night stay. This is another nice Georgia State Park, matter fact its the largest state park in Georgia. It consists of 9,049 acres and has over 40 miles of trails. There are 21 cottages, 140 campsites, 16 backcountry…

FERNANDA LOUREIRO ALMEIDA OSULLIVAN, CPAA; ROGER CRESCENCIO, CPAA; ANTONIO CLAUDIO UCHOA IZEL, CPAA; CHEILA DE LIMA BOIJINK, CPAA; EDSANDRA CAMPOS CHAGAS, CPAA ...

A new species of the characid genus Astyanax is described from the endorheic Primero River basin, in central Argentina: Astyanax hermosus sp.n. This species can be distinguished from all other in the genus by the following combination of characters: body relatively low (33.1-38.7% SL); head short (23.5-27.1% SL); snout short (18.3-26.6% HL); interorbital broad (34.9-41.5% HL); maxilla with 1-3 teeth, usually one; iv-v, 17-22 anal-fin rays; 35-38 perforated scales on the lateral line; transverse scales 7/6; and distinctive color pattern, with Y-shaped humeral spot, a broad greyish longitudinal stripe on the flanks, extending weakly onto the middle caudal-fin rays, and extremely dark opercular, subopercular and preopercular regions. In addition, the males of the new species are distinguished by the presence of bony hooks in all their fins ...

D.L. Bliss State Park facilities, activities, and recreation information on the West Shore of Lake Tahoe, California. It is north of Emerald Bay State Park.

South Cumberland State Park, Monteagle: See 59 reviews, articles, and 78 photos of South Cumberland State Park, ranked No.1 on TripAdvisor among 7 attractions in Monteagle.

The Friends of Birch Bay State Park are hosting another great season of events and education programs. Learn about frogs, whales, birds, the creatures of the tide flats, and so much more! Enjoy free music and the beauty of of Birch Bay. All programs are free. Visit the Friends of Birch Bay State Park website or click here to download the summer schedule. ...

ROGERS (KFSM) - Hobbs State Park has been added to the list of state parks taking part in the annual, nationwide First Day Hike event. First Day Hike takes plac...

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.

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 ...

Information and prices can change. Parks charge a daily entrance fee in addition to any facility fees, unless otherwise stated.. Purchase a Texas State Park Pass to enjoy free entry to more than 80 state parks for you and your guests for one year.. You may bring pets to most state parks, but they cannot enter Texas State Park buildings. Learn about rules for pets at state parks. For park-specific pet restrictions, contact the park.. Call the park or the Customer Service Center (512) 389-8900 for more information.. ...

Mario Pipe/Piranha Plant TP Cozy - CRAFTSTER CRAFT CHALLENGES - 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

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 ...

McAllister, D.E., 1990. A working list of fishes of the world. Copies available from D.E. McAllister, Canadian Museum of Nature, P.O. Box 3443, Ottawa, Ontàrio K1P 6P4, Canadà. 2661 p. plus 1270 p. ...

A Hobbs State Park volunteer in October, 2002, was weed eating a path down a Highway 12 E ditch, across the road from the parking lot in Van Winkle Hollow (before trails were built under a tunnel). Wooah! His face almost smashed into a cluster of green and brown spiny burs on a low hanging tree limb. Ducking his head and almost dropping the buzzing tool reflexively, he got a flash of joy! Thats a chinkypin bur! He blurted out in excitement, I havent seen one of them in over 50 years! his brain reminded him. You were only 10 years old when you first and last found them south of Bentonville and east of Evening Star School, near what, at that time, was Cave Springs gravel road.. After shutting off the weeder and putting it down, Al Knox, age 67, and retired from public schools, started carefully fondling several of those sticky brown burs with small acorn-like nuts peeking out, and realized a rare treasure had just been found! So he picked a couple and hurried to the park office to show ...

Davis Mountains State Park, 2708.9 acres in size, is located in Jeff Davis County, four miles northwest of Fort Davis, approximately halfway between Guadalupe Mountains National Park, Carlsbad Caverns, and Big Bend National Park.

There is no charge to park or to enter the Visitors Center and falls area. Be sure to plan ahead and buy a parking passing online and print prior to arriving to save time standing in lines. For more choices, head 12 miles down the shore to Two Harbors or about the same distance … Visitor Center The visitor centre is not just a place to get information about the waterfall and hiking trails, but to also catch educational short films about the state and its position on the mighty Lake Superior. While these sites do not offer electric, water, or sewer hookups, guests can make use of nearby water, showers, and a dump station open seasonally from May through late October. The walk to Gooseberry Falls is a good walk to get your juices flowing. It is a great place to spend the day hiking, seeing the falls, kids love walking on the rocks and playing in the water. Gooseberry Falls State Park is the first one north of Duluth in the chain of eight parks that line the North Shore from Duluth to the ...

Wildwood State Park Campground is a 4.6 mile moderately trafficked loop trail located near Wading River, New York that features a great forest...

While visiting Shawnee State Park, we decided to stop off at the parks nature center, and were glad that we did. It turns out that this is the only nature…

Looking for hotels near Quail Creek State Park in UT? Find St. George hotels and attractions near the park and book online or call for an agent | Reserve

In 1878 the Legislature set aside 50,000 acres of Public Trust Fund Lands as a State Park. These were scattered timbered lands located in Lincoln, Iron, Vilas and Oneida Counties. (A historical marker located near St. Croix Falls in Polk County, Wisconsin.)

Experience Iowas natural beauty and all the fun our state parks offer as you make memories with family and friends. With an array of activities for outdoor enthusiasts of all ages, theres something for everyone whether youre visiting for an afternoon or a week!

Just because there is snow on the ground, doesnt mean you can embrace nature and head out for a hike at Starved Rock State Park. I recently sat down with Lisa, from the Starved Rock S

Changes in climate, technology, leadership and tourism are impacting Baxter State Park, a special place that many people wish would never change.

For those who enjoy spending time in nature and relaxing by a lake, Tyler State Park is a perfect summer destination for some fun time in the sun.

If you had a great time, please take a few minutes to share a review. Simply click your site of choice below and tell the world about your experience at Shepard State Park. Choose Your Favorite Review Site ...

If you had a great time, please take a few minutes to share a review. Simply click your site of choice below and tell the world about your experience at Shepard State Park. Choose Your Favorite Review Site ...

Come along with me on this bold adventure in Guyana as I try out pirana fishing for the first time. I can teach you how to become an expert! ha ha!

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

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