A class in the phylum MOLLUSCA comprised of mussels; clams; OYSTERS; COCKLES; and SCALLOPS. They are characterized by a bilaterally symmetrical hinged shell and a muscular foot used for burrowing and anchoring.
A family of marine MUSSELS in the class BIVALVIA.
A phylum of the kingdom Metazoa. Mollusca have soft, unsegmented bodies with an anterior head, a dorsal visceral mass, and a ventral foot. Most are encased in a protective calcareous shell. It includes the classes GASTROPODA; BIVALVIA; CEPHALOPODA; Aplacophora; Scaphopoda; Polyplacophora; and Monoplacophora.
A large family of mollusks in the class BIVALVIA, known commonly as scallops. They possess flat, almost circular shells and are found in all seas from shallow water to great depths.
A family of freshwater mussels in the class BIVALVIA. They differ from ZEBRA MUSSELS in that they are larger and posses a larval stage called glochidia, which requires attachment to the GILLS or fins of particular species of FISHES.
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.
A genus of freshwater mussel in the family MYTILIDAE, class BIVALVIA. It is found in tropical and warm temperate coastal waters. Most species have green in their shells.
The relationship between two different species of organisms that are interdependent; each gains benefits from the other or a relationship between different species where both of the organisms in question benefit from the presence of the other.
Large natural streams of FRESH WATER formed by converging tributaries and which empty into a body of water (lake or ocean).
Double-stranded DNA of MITOCHONDRIA. In eukaryotes, the mitochondrial GENOME is circular and codes for ribosomal RNAs, transfer RNAs, and about 10 proteins.
The relationships of groups of organisms as reflected by their genetic makeup.
A multistage process that includes cloning, physical mapping, subcloning, determination of the DNA SEQUENCE, and information analysis.
Constituent of 30S subunit prokaryotic ribosomes containing 1600 nucleotides and 21 proteins. 16S rRNA is involved in initiation of polypeptide synthesis.
Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories.
DNA sequences encoding RIBOSOMAL RNA and the segments of DNA separating the individual ribosomal RNA genes, referred to as RIBOSOMAL SPACER DNA.
One of the three domains of life (the others being Eukarya and ARCHAEA), also called Eubacteria. They are unicellular prokaryotic microorganisms which generally possess rigid cell walls, multiply by cell division, and exhibit three principal forms: round or coccal, rodlike or bacillary, and spiral or spirochetal. Bacteria can be classified by their response to OXYGEN: aerobic, anaerobic, or facultatively anaerobic; by the mode by which they obtain their energy: chemotrophy (via chemical reaction) or PHOTOTROPHY (via light reaction); for chemotrophs by their source of chemical energy: CHEMOLITHOTROPHY (from inorganic compounds) or chemoorganotrophy (from organic compounds); and by their source for CARBON; NITROGEN; etc.; HETEROTROPHY (from organic sources) or AUTOTROPHY (from CARBON DIOXIDE). They can also be classified by whether or not they stain (based on the structure of their CELL WALLS) with CRYSTAL VIOLET dye: gram-negative or gram-positive.
The process of cumulative change at the level of DNA; RNA; and PROTEINS, over successive generations.
Water containing no significant amounts of salts, such as water from RIVERS and LAKES.
A large, subclass of arachnids comprising the MITES and TICKS, including parasites of plants, animals, and humans, as well as several important disease vectors.
A genus of freshwater clams, in the family Corbiculidae, class BIVALVIA. It originated in Asia but was introduced in North America and is now found throughout the United States.
A genus of surf clams in the family Mactridae, class BIVALVIA. They are often used in EMBRYOLOGY research.
A family of flukes (TREMATODA) characterized by a collar of spines at their anterior end. The body is elongated and is covered with spines, and the two suckers are usually close together. (Noble et al., Parasitology: the Biology of Animal Parasites, 6th ed, p183)
Mapping of the KARYOTYPE of a cell.
A type of IN SITU HYBRIDIZATION in which target sequences are stained with fluorescent dye so their location and size can be determined using fluorescence microscopy. This staining is sufficiently distinct that the hybridization signal can be seen both in metaphase spreads and in interphase nuclei.
The portion of chromosome material that remains condensed and is transcriptionally inactive during INTERPHASE.
A genus of marine mussels in the family MYTILIDAE, class BIVALVIA. The species MYTILUS EDULIS is the highly edible common mussel.
A species of mussel in the genus MYTILUS, family MYTILIDAE, class BIVALVIA, known as the common mussel. It has a bluish-black shell and is highly edible.
Mature male germ cells derived from SPERMATIDS. As spermatids move toward the lumen of the SEMINIFEROUS TUBULES, they undergo extensive structural changes including the loss of cytoplasm, condensation of CHROMATIN into the SPERM HEAD, formation of the ACROSOME cap, the SPERM MIDPIECE and the SPERM TAIL that provides motility.
A bundle of MICROTUBULES and MICROTUBULE-ASSOCIATED PROTEINS forming the core of each CILIUM or FLAGELLUM. In most eukaryotic cilia or flagella, an axoneme shaft has 20 microtubules arranged in nine doublets and two singlets.
The posterior filiform portion of the spermatozoon (SPERMATOZOA) that provides sperm motility.
Movement characteristics of SPERMATOZOA in a fresh specimen. It is measured as the percentage of sperms that are moving, and as the percentage of sperms with productive flagellar motion such as rapid, linear, and forward progression.
Large, robust forms of brown algae (PHAEOPHYCEAE) in the order Laminariales. They are a major component of the lower intertidal and sublittoral zones on rocky coasts in temperate and polar waters. Kelp, a kind of SEAWEED, usually refers to species in the genera LAMINARIA or MACROCYSTIS, but the term may also be used for species in FUCUS or Nereocystis.
Total mass of all the organisms of a given type and/or in a given area. (From Concise Dictionary of Biology, 1990) It includes the yield of vegetative mass produced from any given crop.
Beaches, both natural and man-made, used for bathing and other activities.
A partially enclosed body of water, and its surrounding coastal habitats, where saltwater from the ocean mixes with fresh water from rivers or streams. The resulting mixture of seawater and fresh water is called brackish water and its salinity can range from 0.5 to 35 ppt. (accessed http://oceanservice.noaa.gov/education/kits/estuaries/estuaries01_whatis.html)
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)
The study of the origin, structure, development, growth, function, genetics, and reproduction of organisms which inhabit the OCEANS AND SEAS.
The protein constituents of muscle, the major ones being ACTINS and MYOSINS. More than a dozen accessory proteins exist including TROPONIN; TROPOMYOSIN; and DYSTROPHIN.

Fluorimetric multiparameter cell assay at the single cell level fabricated by optical tweezers. (1/906)

A fluorimetric multi-parameter cell sensor at the single cell level is presented which makes it possible to observe the physiological behavior of different cell lines, different physiological parameters, and statistical data at the same time. Different cell types were immobilized at predefined positions with high accuracy using optical tweezers and adhesion promoting surface layers. The process is applicable to both adherent and non-adherent cells. Coating of the immobilization area with mussel adhesive protein was shown to be essential for the process. Intracellular proton and calcium concentrations in different cell classes were simultaneously imaged and the specific activation of T lymphocytes was demonstrated. This method should be especially useful for drug screening due to the small sample volume and high information density.  (+info)

Tumor-like lesions in the mantle of the mussel Modiolus difficilis from the Sea of Japan. (2/906)

Two inner growths in the mantle beneath the epithelium were found in 1 of 1000 mussels Modiolus difficilis from Amursky Bay, Sea of Japan, within the city precincts of Vladivostok. Both growths were about 2000 microns in maximal diameter in section and elevated slightly above the mantle surface. The mantle epithelium near the growths formed deep invaginations, and clusters of mucous cells were numerous beneath the epithelium. Histological and histochemical methods were employed. Two different kinds of growth were revealed. The off-white growth consisted of cells with thin granular or vesicular cytoplasm containing glucosaminoglycans, proteins and a small amount of neutral polysaccharides. Growth cells were pure white in color after treatment of preparations with 1% H2SO4 and differed markedly from the mantle cells. The yellow growth consisted of large granular cells with neutral polysaccharides and proteins. Although growths were composed of different kinds of cells, they seemed to be derived from subepithelial mucous cells. This was supported by histological and histochemical staining reactions of some tumor and mantle epithelial cells. Mitotic indices (MI) of growths and subepithelial mucous cells were zero, MI of ciliated mantle epithelium reached 0.07%. The lesions were areas of strongly altered mucous cells of mantle epithelium and were non-neoplastic.  (+info)

Heart action of the freshwater bivalve Anodonta anatina during activity. (3/906)

1. Heart action of Anodonta anatina (L.) was investigated by recording the electrocardiogram (ECG), heart impedance, and ventricular and pericardial cavity pressure during different aspects of the normal behaviour. The contribution of mechanical and nervous mechanisms in controlling changes in heart action is discussed. 2. Pressure recordings were generally more reliable than the other methods and it is suggested that pericardial pressure pulses indicate the stroke volume output of the ventricle. 3. During spontaneous periods of prolonged shell closure there was an initial small increase in heart activity followed by a large reduction in both heart rate and systolic pressure, indicating that total heart output was considerably reduced. When the shell reopened, heart rate increased very rapidly with an initial overshoot of the normal level; systolic pressure increased more slowly with no overshoot. 4. These major changes in heart activity appear to be associated with respiratory changes and are controlled largely by the nervous regulatory system, but some minor rhythmic variations in the amplitude of heart beat are probably caused by mechanical factors. 5. Characteristic patterns of change in heart action were recorded during burrowing. These appear to result from haemodynamic changes associated with the muscular movements of the digging cycle. Control of the heart by the nervous regulatory system is apparently of much greater importance in relation to respiratory control than in relation to the haemodynamic functioning of the fluid-muscle system in locomotion.  (+info)

Dynein is required for spindle assembly in cytoplasmic extracts of Spisula solidissima oocytes. (4/906)

Meiosis I spindle assembly is induced in lysate-extract mixtures prepared from clam (Spisula solidissima) oocytes. Unactivated lysate prepared from unactivated oocytes contain nuclei (germinal vesicles, GVs) which house condensed chromosomes. Treatment of unactivated lysate with clarified activated extract prepared from oocytes induced to complete meiosis by treatment with KCl induces GV breakdown (GVBD) and assembly of monopolar, bipolar, and multipolar aster-chromosome complexes. The process of in vitro meiosis I spindle assembly involves the assembly of microtubule asters and the association of these asters with the surfaces of the GVs, followed by GVBD and spindle assembly. Monoclonal antibody m74-1, known to react specifically with the N terminus of the intermediate chain of cytoplasmic dynein, recognizes Spisula oocyte dynein and inhibits in vitro meiosis I spindle assembly. Control antibody has no affect on spindle assembly. A similar inhibitory effect on spindle assembly was observed in the presence of orthovanadate, a known inhibitor of dynein ATPase activity. Neither m74-1 nor orthovanadate has any obvious affect on GVBD or aster formation. We propose that dynein function is required for the association of chromosomes with astral microtubules during in vitro meiosis I spindle assembly in these lysate-extract mixtures. However, we conclude that dynein function is not required for centrosome assembly and maturation or for centrosome-dependent aster formation.  (+info)

Ca2+ is required for phosphorylation of clam p82/CPEB in vitro: implications for dual and independent roles of MAP and Cdc2 kinases. (5/906)

During early development gene expression is controlled principally at the translational level. Oocytes of the surf clam Spisula solidissima contain large stockpiles of maternal mRNAs which are translationally dormant or masked until meiotic maturation. Fertilisation of the oocyte leads to rapid polysomal recruitment of the abundant cyclin and ribonucleotide reductase mRNAs at about the time they undergo cytoplasmic polyadenylation. Clam p82, a 3' UTR RNA-binding protein, and a member of the CPEB (cytoplasmic polyadenylation element binding protein) family, functions as a translational masking factor in oocytes and as a polyadenylation factor in fertilised eggs. In meiotically maturing clam oocytes, p82/CPEB is rapidly phosphorylated on multiple residues to a 92-kDa apparent size, prior to its degradation during the first cell cleavage. Here we examine the protein kinase(s) that phosphorylates clam p82/CPEB using a clam oocyte activation cell-free system that responds to elevated pH, mirroring the pH rise that accompanies fertilisation. We show that p82/CPEB phosphorylation requires Ca2+ (<100 microM) in addition to raised pH. Examination of the calcium dependency combined with the use of specific inhibitors implicates the combined and independent actions of cdc2 and MAP kinases in p82/CPEB phosphorylation. Calcium is necessary for both the activation and the maintenance of MAP kinase, whose activity is transient in vitro, as in vivo. While cdc2 kinase plays a role in the maintenance of MAP kinase activity, it is not required for the activation of MAP kinase. We propose a model of clam p82/CPEB phosphorylation in which MAP kinase initially phosphorylates clam p82/CPEB, at a minor subset of sites that does not alter its migration, and cdc2 kinase is necessary for the second wave of phosphorylation that results in the large mobility size shift of clam p82/CPEB. The possible roles of phosphorylation for the function and regulation of p82/CPEB are discussed.  (+info)

Actin filament-membrane attachment: are membrane particles involved? (6/906)

The association of actin filaments with membranes is an important feature in the motility of nonmuscle cells. We investigated the role of membrane particles in the attachment of actin filaments to membranes in those systems in which the attachment site can be identified. Freeze fractures through the end-on attachment site of the acrosomal filament bundles in Mytilus (mussel) and Limulus (horseshoe crab) sperm and the attachment site of the microvillar filament bundles in the brush border of intestinal epithelial cells were examined. There are no particles on the P face of the membrane at these sites in the sperm systems and generally none at these sites in microvilli. In microvilli, the actin filaments are also attached along their lengths to the membrane by bridges. When the isolated brush border is incubated in high concentrations of Mg++ (15 mM), the actin filaments form paracrystals and, as a result, the bridges are in register (330 A period). Under these conditions, alignment of the particles on the P face of the membrane into circumferential bands also occurs. However, these bands are generally separated by 800-900 A, indicating that all the bridges cannot be directly attached to membrane particles. Thus membrane particles are not directly involved in the attachment of actin filaments to membranes.  (+info)

Interspecies transfer of female mitochondrial DNA is coupled with role-reversals and departure from neutrality in the mussel Mytilus trossulus. (7/906)

Mussels of the genus Mytilus have distinct and highly diverged male and female mitochondrial DNA (mtDNA) genomes with separate routes of inheritance. Previous studies of European populations of Mytilus trossulus demonstrated that 33% of males are heteroplasmic for a second mtDNA genome of increased length and that hybridization with Mytilus edulis does not block mtDNA introgression, in contrast to reports for American populations. Here, we demonstrate that the female mtDNA type of M. edulis has replaced the resident female mtDNA type of European M. trossulus. This is supported by COIII sequence data indicating that the female mtDNA of European M. trossulus is very similar to that of M. edulis and that in phylogenetic trees, the mtDNAs of these two species cluster together but separately from American M. trossulus sequences, the latter not being disturbed by introgressive hybridization. We also provide evidence that the mtDNA genome of increased length found in heteroplasmic males of European M. trossulus derives from a recent partition of an introgressed M. edulis female type into the male route of transmission. Neutrality tests reveal that European populations of M. trossulus display an excess of replacement polymorphism within the female mtDNA type with respect to conspecific American populations, as well as a significant excess of rare variants, of a similar magnitude to those previously reported for the invading European M. edulis mtDNA. Results are consistent with a nearly neutral model of molecular evolution and suggest that selection acting on European M. trossulus mtDNA is largely independent of the nuclear genetic background.  (+info)

Mytilus mitochondrial DNA contains a functional gene for a tRNASer(UCN) with a dihydrouridine arm-replacement loop and a pseudo-tRNASer(UCN) gene. (8/906)

A 2500-nucleotide pair (ntp) sequence of F-type mitochondrial (mt) DNA of the Pacific Rim mussel Mytilus californianus (class Bivalvia, phylum Mollusca) that contains two complete (ND2 and ND3) and two partial (COI and COIII) protein genes and nine tRNA genes is presented. Seven of the encoded tRNAs (Ala, Arg, His, Met(AUA), Pro, Ser(UCN), and Trp) have the potential to fold into the orthodox four-armed tRNA secondary structure, while two [tRNASer(AGN) and a second tRNASer(UCN)] will fold only into tRNAs with a dihydrouridine (DHU) arm-replacement loop. Comparison of these mt-tRNA gene sequences with previously published, corresponding M. edulis F-type mtDNA indicates that similarity between the four-armed tRNASer(UCN) genes is only 63.8% compared with an average of 92.1% (range 86.2-98. 5%) for the remaining eight tRNA genes. Northern blot analysis indicated that mature tRNAs encoded by the DHU arm-replacement loop-containing tRNASer(UCN), tRNASer(AGN), tRNAMet(AUA), tRNATrp, and tRNAPro genes occur in M. californianus mitochondria, strengthening the view that all of these genes are functional. However, Northern blot and 5' RACE (rapid amplification of cDNA ends) analyses indicated that the four-armed tRNASer(UCN) gene is transcribed into a stable RNA that includes the downstream COI sequence and is not processed into a mature tRNA. On the basis of these observations the M. californianus and M. edulis four-armed tRNASer(UCN) sequences are interpreted as pseudo-tRNASer(UCN) genes.  (+info)

article{1079318, abstract = {Facultative anaerobic marine bacteria isolated from cultured clams Ruditapes decussatus and Ruditapes philippinarum were previously investigated using AFLP and 16S rRNA gene sequences analyses. The isolates formed two AFLP clusters and belonged to the genus Vibrio, more precisely to the Splendidus clade. In this study, phylogenetic analyses based on sequences of the housekeeping genes rpoA, rpoD, pyrH, atpA and recA supported their inclusion in that clade forming two well differentiated groups with respect to the rest of the species within the clade, and confirmed they formed two groups, separated from the rest of the species of the clade. DNA-DNA hybridizations demonstrated that the isolates constitute two novel Vibrio species, which can be phenotypically differentiated from their closest relatives. The names Vibrio atlanticus sp. nov. and Vibrio artabrorum sp. nov. are proposed, with Vb 11.11T (=CECT 7223T =LMG 24300T) and Vb 11.8T (=CECT 7226T =LMG 23865T) as the ...
Among the potential biotic factors affecting population dynamics, parasitism has received relatively little attention. The purpose of this study was to inventory marine bivalve parasites and to investigate relations between different parasite communities. Five intertidal stations along the French Atlantic shore were studied between Brittany and Arcachon Bay. Two bivalves (the edible cockle, Cerastoderma edule, and the Manila clam, Ruditapes philippinarum) were sampled and examined. The parasites included a bacterium (Vibrio tapetis), a protozoan (Perkinsus sp.), and digenetic trematode metacercariae (10 species). Perkinsus sp. prevalence and density in clams were higher than those measured in cockles (30 250 vs. 36 cells g−1 of gill wet weight, respectively) while digeneans were more common in cockles (46 metacercariae per cockle host vs. 1 per clam host). Distributions of digeneans and Perkinsus sp. were similar along the Atlantic shore. However, at each sampling station and at the individual scale,
Vibrio tapetis is the marine bacterium responsible for the brown ring disease (BRD) affecting die manila clam, Ruditapes philippinarum. Identification of V tapelis has been previously performed using...
Mono- and Stereopictres of 5.0 Angstrom coordination sphere of Iron atom in PDB 3g53: Ligand Migration And Cavities Within Scapharca Dimeric Hemoglobin: Wild Type With Co Bound To Heme and Chloropropyl Benzene Bound to the XE4 Cavity
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TY - JOUR. T1 - Uniform Variation in Genetic-Traits of a Marine Bivalve Related to Starvation, Pollution and Geographic Clines. AU - Hummel, H.. AU - Bogaards, R.H.. AU - Amiard-Triquet, C.. AU - Bachelet, G.. AU - Desprez, M.. AU - Marchand, J.. AU - Rybarczyk, H.. AU - Sylvand, B.. AU - De Wit, Y.. AU - De Wolf, L.. N1 - Reporting year: 1995 Metis note: 2048; CEME; MM; file:///L:/Endnotedatabases/NIOOPUB/pdfs/Pdfs1995/Hummel_ea_2048.pdf. PY - 1995. Y1 - 1995. N2 - Consistent patterns of genetic variation in the marine bivalve Macoma balthica (L.) were found after exposure to low levels of copper, starvation, and along geographic dines. The geographic dines were related to temperature and salinity. Genetic differences were primarily found in the LAP (Leucine aminopeptidase) locus; under stress the frequency of one specific allele, and thereby the heterozygosity, decreased strongly. The degree of changes depended on age and condition of the animals; adult animals showing stronger changes than ...
Chemically skinned anterior byssus retractor muscle (ABRM) preparations were prepared by treatment with the nonionic detergents saponin and Triton X-100. Both maximum peak tension and rate of contraction were found to be greater in saponin-treated ABRM than in ABRM treated with Triton X-100. Active tension was initiated at a concentration of free Ca2+ above 0.1 microM, and maximum tension development was found at a [Ca2+] = approximately 32 microM. During exposure of the muscle preparation to optimal Ca2+ concentration, a high and almost constant tension level was sustained. The force recovery was high after a quick release during this period indicating the presence of an active state rather than a catch state. Actually, a state equivalent to the catch state in the living ABRM could not be induced, if the Ca2+ concentration was above 0.1 microM. Variations in the ionic strength in the range of 0.07--0.28 M had no influence on active state and only slightly affected the maximum tension ...
The ribbed mussel Geukensia demissa inhabits intertidal Spartina grass marshes characterized by sulfide-rich sediments. Sulfide poisons aerobic respiration, and G. demissa may cope in this seemingly inhospitable environment by oxidizing sulfide in gill mitochondria. Well-coupled mitochondria isolated from G. demissa gills were used to investigate sulfide oxidation and ATP synthesis. State 3 respiration, maximally stimulated by 5 micromol l(−)(1) sulfide with a P/O ratio of 0.89 and a respiratory control ratio (RCR) of 1.40, remained refractory to sulfide at higher concentrations except in the presence of salicylhydroxamic acid (SHAM), an inhibitor of alternative oxidases. Sulfide-stimulated ATP production was 3-5 times greater than that stimulated by malate and succinate, respectively, giving an ATP/sulfide ratio of 0.63. The inhibition of sulfide-stimulated respiration and ATP production by the complex III inhibitors myxothiazol and antimycin A, respectively, suggests that electrons enter the ...
Growth rate is one of the most important traits from the point of view of individual fitness and commercial production in mollusks, but its molecular and physiological basis is poorly known. We have studied differential gene expression related to differences in growth rate in adult individuals of the commercial marine clam Ruditapes decussatus. Gene expression in the gills and the digestive gland was analyzed in 5 fast-growing and five slow-growing animals by means of an oligonucleotide microarray containing 14,003 probes. A total of 356 differentially expressed genes (DEG) were found. We tested the hypothesis that differential expression might be concentrated at the growth control gene core (GCGC), i.e., the set of genes that underlie the molecular mechanisms of genetic control of tissue and organ growth and body size, as demonstrated in model organisms. The GCGC include the genes coding for enzymes of the insulin/insulin-like growth factor signaling pathway (IIS), enzymes of four additional signaling
Define straight razor. straight razor synonyms, straight razor pronunciation, straight razor translation, English dictionary definition of straight razor. straight razor n. A razor consisting of a blade hinged to a handle into which it slips when not in use. n another name for cut-throat2 n. a razor having a...
The impact of diets upon the fatty acid composition of haemocyte polar lipids and consequently upon immune parameters has been tested in the oyster Crassostrea gigas and the clam Ruditapes philippinarum. Oysters and clams were fed each of three cultured algae: Chaetoceros calcitrans, which is rich in 20:5(n-3) and 20:4(n-6) and poor in 22:6(n-3) fatty acids; T-Iso (Isochrysis sp.), which is rich in 22:6(n-3) and deficient in 20:5(n-3) and 20:4(n-6); and Tetraselmis suecica, which is deficient in 22:6(n-3) and contains only small amounts of 20:5(n-3) and 20:4(n-6). Fatty acid composition of haemocyte polar lipids was greatly affected by the diet. Oysters and clams fed C. calcitrans maintained a higher proportion of 20:5(n-3) and 20:4(n-6) in their haemocyte ...
Looking for Bivalve molluscs? Find out information about Bivalve molluscs. One of the five classes in the phylum Mollusca, sometimes known as Pelecypoda. All bivalves are aquatic, living at all depths of the sea and in brackish and... Explanation of Bivalve molluscs
0080] FIGS. 12 and 13 show another embodiment according to the present disclosure. FIG. 12 shows an isometric view of a razor head 42 with three razor blades 24. The razor head 42 has three sensors 26 positioned within it. The sensors 26 are coupled to the electrical components within the razor handle 28 via the insulated data lines 70 and the insulated power lines 72. The insulated data lines 70 and insulated power lines 72 connect to the connection port 66, which interfaces with the electrical components within the razor handle 28. The insulated data lines 70 and the insulated power lines 72 are affixed to the inside of the razor head 74 using known methods. The embodiment of FIG. 12 also illustrates that a number of different sensors can be positioned inside a single razor head at different locations and of different types. For example, one sensor can be positioned on the top surface 72 of the second blade while another sensor is positioned on a bottom surface of the same blade. Similarly, in ...
Straight razors were the most common form of shaving before the 20th century and remained common in many countries until the 1950s.[8] Barbers were specially trained to give customers a thorough and quick shave, and a collection of straight razors ready for use was a common sight in most barbershops. Barbers still have them, but they use them less often.. Straight razors eventually fell out of fashion. Their first challenger was manufactured by King C. Gillette: a double-edged safety razor with replaceable blades.[citation needed] Gillettes idea was the use of the loss leader concept, in which the razors were sold at a loss, but the replacement blades earned a high margin and provided continuous sales. They were immensely successful because of advertising campaigns and slogans denigrating the straight razors effectiveness and questioning its safety.[citation needed]. These new safety razors did not require any serious tutelage to use.[9] The blades were extremely hard to sharpen, and were ...
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Belgian Species List whishes to become a reference concerning nomenclature and taxonomy, easy to consult, containing all information on species present in Belgium. As their name implies, they have a shell composed of two valves that are connected at a hinge. Linnaeus, 1758 Laterally flattened molluscs with a shell made of two hinged valves that are connected dorsally by elastic ligaments and shell teeth; the shells are closed by internal adductor muscles. Common bivalves are clams, oysters, and scallops. Bivalves include clams, oysters, mussels, scallops, and numerous other families of shells. A Species (binomials) B Species (binomials) C Species (binomials) D Species (binomials) E Species (binomials) F species (binomials) ... Class Bivalvia. CLASS BIVALVIA (bis, twic + vala; leaf) There are 30,000 species of this class. Zookeys 827: 31-124. Number of selected records is too high and function could slow down server. In May 2010, a new taxonomy of the Bivalvia was published in the journal ...
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The mean monthly density of the population of T. plebeius in Enseada Beach ranged between 16.00 and 41.60 ind.m-2, representing a mean annual biomass of 1.12 g AFDM m-2. The highest value of biomass was recorded in October 1997 (1.90 g AFDM m-2). The production ranged between 0.08 g and 0.21 g AFDM m-2 year-1, with total production of 1.53 g AFDM m-2 year-1, giving a P/B ratio of 1.37 year-1. DISCUSSION. The abundances of live individuals of T. plebeius in the population at Enseada Beach showed significant fluctuations over the months of sampling. The maximum density reached 79 ind m-2. Abundances reported for other extant populations are much higher: up to 300 ind m-2 in estuaries along the northwestern Atlantic and the Gulf of Mexico (CHANLEY & CASTAGNA 1971); 138 ind m-2 in an estuary in Maceió, Brazil (O. Viégas pers. comm.); 128 ind m-2 in Florida, USA (SHERIDAN & LIVINGSTON 1983); and up to 200 ind m-2 in the Mar Chiquita lagoon, Argentina (IRIBARNE et al. 1998). However, these high ...
Perkinsus atlanticus cultures were established either with trophozoites isolated from fresh gills, with hypnospores isolated from tissues incubated in fluid thioglycollate medium, or directly from infected hemocytes of carpet shell clams Tapes decussatus from Algarve (Southern Portugal), using a culture medium and conditions optimized for Perkinsus marinus. Perkinsus atlanticus isolates were cloned by limiting dilution, and their identity unequivocally established by PCR-based species-specific diagnostic assays, and by sequencing the complete rRNA gene cluster. The rRNA gene cluster is 7.5-kb in length including 5S, IGS, SSU, ITS1, 5.8S, ITS2, LSU, and an inter-cluster spacer. rDNA sequences of the P. atlanticus clone were between 98.3-100% identical to P. atlanticus sequences previously obtained from clam tissue (non-clonal) isolates. Based on the IGS sequences available from Perkinsus species, a set of primers was designed to amplify P. atlanticus and the two clonally cultured Perkinsus ...
Epithelium (surface layer of tissue cells) of vesicomyid clam gill covered with cilia (thin, finger-like projections). The gills of the clam are arranged in filaments and connected with tissue junctions. Bacterial symbionts are present in bacteriocytes (specific cells) on the filaments. Scale bar=50 microns.. ...
Cancers of the reproductive system are among the leading causes of mortality in women in the United States. While both genetic and environmental factors have been implicated in their etiology, the extent of the contribution of environmental factors to human diseases remains controversial. To better address the role of environmental exposures in cancer etiology, there has been an increasing focus on the development of nontraditional, environmentally relevant models. Our research involves the development of one such model. Gonadal tumors have been described in the softshell clam (Mya arenaria) in Maine and the hardshell clam (Mercenaria spp.) from Florida. Prevalence of these tumors is as high as 40% in some populations in eastern Maine and 60% in some areas along the Indian River in Florida. The average tumor prevalence in Maine and Florida is approximately 20 and 11%, respectively. An association has been suggested between the use of herbicides and the incidence of gonadal tumors in the softshell clam
Also known as Steamers, these clams are tender and sweet. They can be found native in local Washington and British Columbia. Manila clams are a chef favorite and are commonly used among various cuisines. Easy to cook with, they are often paired with butter or wine. Our shellfish tanks ensure the clams are purged of any sand or grit to give it a clean taste.. Season: All Year ...
Define byssus. byssus synonyms, byssus pronunciation, byssus translation, English dictionary definition of byssus. n. pl. bys·sus·es or bys·si 1. Zoology A mass of strong, silky filaments by which certain bivalve mollusks, such as mussels, attach themselves to rocks and...
ABSTRACT. It is described the sperm ultraestructure differentiation during spermiogenesis of Tagelus plebeius (Lightfoot, 1786). The spermatozoon is an uniflagellated cell of the primitive type. The head region contains a rounded or conical nucleus surrounded by acrosome. The middle piece contains four mitochondria which are arranged around the axoneme. The flagellum contains the usual microtubular axoneme.. Key words: Mollusca, Bivalvia, Tagelus plebeius, ultrastructure, spermatozoa. ...
Read The size and age structure of Tridacna crocea Lamarck, 1819 (Bivalvia: Tridacnidae) in the coastal area of islands of the Cön Dao Archipelago in the South China Sea, Russian Journal of Marine Biology on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.
Many rare mussels are protected by this critical law. Help us save it. Mussels are fascinating because of their life histories, carried out on river bottoms. They are among the longest-lived invertebrates, surviving as long as 100 years. Their reproduction is complex and remarkable. Mussels, which cannot see, must make a lure that mimics a juvenile fish, worm, snail or insect to successfully attract specific fish, or in one case a type of salamander, to serve as hosts for their parasitic larvae. Mussel larvae develop into perfectly shaped tiny mussels on their hosts gills before dropping off to begin lives on their own. Because mussels and their hosts have evolved together over millennia, theyre fascinating to scientists and dilettantes alike due to the complexity of their relationships. Mussels are also an indicator species of water quality and play an important role in rivers by filtering water constantly as they breathe and feed. They improve water quality by filtering out bacteria, algae ...
ABSTRACT: The blackening of tissues or mucus of benthic animals from sulphidic environments is a remarkable phenomenon whose ecological interpretation is disputed. In the Baltic clam Macoma balthica the mantle edge turned black after sulphide exposure owing to numerous precipitates in the extracellular matrix underneath the epidermal cells. In the apical parts of these cells, similar precipitates were found, albeit in lower abundance. Elemental analyses showed that copper (214.7 µg g-1 ww [wet weight]) and sulphur (1328.6 µg g-1 ww) were the main components, with iron (311.2 µg g-1 ww) and zinc (112.7 µg g-1 ww) in lower concentration. Apparently, these precipitates become phagocytosed by amoebocytes and concentrated in haemocytic granules. This is interpreted as a pathway of removal from the mantle edge. On the basis of calculated diffusion rates (DHS- = 1.9 x 10-6 cm2 s-1), there is a sulphide influx of 61 nmol h-1 into the body of M. balthica. Even under conservative assumptions, this ...
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Clams, mussels, oysters, and scallops are members to the class Bivalvia (or Pelecypodia). foramen (pedicle opening) hole in the pedicle valve in a brachiopod through which the pedicle emerges. likely mode of life of this bivalve â ¦ Bivalves are able to pump large volumes of water and hence to clear the water column of organic particles. External sexual dimorphism is evident in only a few bivalves (Carditidae, Unionoidea). Order Mytiloida. Fordilla was one of these earliest bivalves, characterized by its small size, anterior adductor muscle larger than the posterior, and a single hinge tooth in each valve. This type of larva looks like a miniature bivalve with a row of cilia along the edge of the mantle. Internal fertilization has been recorded for a few groups (Galeommatoidea, Teredinidae), using tentacles or siphons as copulatory organs. Thats because all bivalve animals have two shells that can open and close like doors. Zebra mussels were first discovered in 1988 in Lake St. Clair but ...
Yu, J., Wei, W., Masic, A., Waite, J. H. Israelachvili, J. N. (2013). Adhesion of mussel foot protein-3 to TiO2 surfaces: the effect of pH. Biomacromolecules DOI: 10.1021/bm301908y Wei, W., Yu, J., Broomell, C.C., Israelachvili, J.N., Waite, J.H. (2013). Hydrophobic enhancement of Dopa mediated adhesion in a mussel foot protein. J. Am. Chem. Soc, 135, 377-383. Miserez, A., Li, Y., Cagnon, J., Weaver, J. C., and Waite, J. H. (2012) Four stranded coiled-coil elastic protein in the byssus of the giant clam Tridacna maxima. Biomacromolecules 13, 332-341. Waite, J. H., and Broomell, C.C. (2012). Changing environments and structure-property relationships in marine biomaterials. J. Experimental Biology 215, 873-883. Hwang, D. S., Harrington, M. J., Lu, Q. Masic, A., Zeng, H., and Waite, J. H. (2012). Mussel foot protein-1 mcfp-1 interaction with titania surfaces. J. Mater. Chem. 22, 15530-15533. Danner, E. W., Kan, Y., Hammer, M. U, Israelachvili, J. N., and Waite, J. H. (2012). Adhesion of mussel ...
Sample prepn. and ligand complex prepn. of Hb I from Lucina pectinata were performed to obtain ultrafast data on ferric HbI-NO, HbI-N3, HbI-H2S and metHbI complexes that suggest a mechanism for the photoinduced redn. of HbI species. Formation of a transient species in the 430 nm region of the ferric derivs., plus the fact that subsequent to the ultrafast measurements a ferrous oxy HbI species was obsd., led to the suggestion that probably a redn. of a ferric to a ferrous deriv. was occurring. Hb I photoredn. take place when the sample is exposed to a femtosecond laser source with power ranging from 0.3 mJ to 10 mJ, showing a population dependency with power intensities. The spectral band displacement obsd. in UV-Vis spectrum obtained after ultrafast expts. confirmed that a reduced species was formed, however, all species show similar dynamics which ends in 15 ps. When ferric samples are photoexcited in a CO atm., the reduced species formed is stable enough for CO to interact with the heme at longer time
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Merkur shaving assemblies are internationally recognized as the premier shaving instrument. With over 100 years of quality German engineering, they are globally known as the BMW of shaving systems, guaranteed to produce a lifetime of high quality shaves.. The Merkur Futur razor features an adjustment mechanism to provide a close, comfortable shave for all beard types. The removable cap easily pops off and snaps closed to keep the blade held securely in place. This razor looks great, feels great and shaves great.. Merkurs adjustable Futur Safety Razor allows you to change the angle of the blade inside the razor head - by twisting the upper part of the handle - to find the setting that gives you the closest, most comfortable shave. With adjustable razors you can re-adjust the angle as needed to maintain the optimum shave ...
Do you need to know how to get rid of razor burn fast in the pubic area? If so, then you may be experiencing the pain and resentment of having a razor burn in the most private area of your body. No one wants an ugly razor burn in their pubic area. Fortunately, there are some remedies that could help you get rid of the razor burn fast! Follow these steps to begin treating your razor burn fast and get it taken care of and off of your pubic area as soon as possible. ...
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How To Get Rid Of Ingrown Hairs And Razor Bumps At Home. ingrown hair treatment, and razor bump treatment, best home remedies.. Ingrown hairs, commonly known as razor bumps, are hairs that have curled around and grown back into the skin instead of rising up from it. Razor bumps can cause redness, swelling, irritation and the development of pimples. In this video, I am going to share with you some simple home remedies can speed up the healing process and diminish the inflammation, redness, and how to get rid of ingrown hairs and razor bumps at home.. Try this at home and share your experience with me ...
status source Huber M. & Eschner A. (2011) Tridacna (Chametrachea) costata Roa-Quiaoit, Kochzius, Jantzen, Al-Zibdah & Richter from the Red Sea, a junior synonym of Tridacna squamosina Sturany, 1899 (Bivalvia, Tridacnidae). Annalen des Naturhistorisches Museum Wien, ser. B, 112: 153-162. [Published March 2011], available online at http://www.landesmuseum.at/pdf_frei_remote/ANNA_112B_0153-0162.pdf [details] ...
The term freshwater bivalve is very inclusive and not very informative. There are representatives of at least 19 families that have at least one representative living in freshwater. This suggests at l
The adductor muscles are the main muscular system in bivalve mollusks, i.e. in clams, scallops, mussels, oysters, etc. In many parts of the world, when people eat scallops, the adductor muscles are the only part of the soft parts of the animal which are eaten. Adductor muscles leave noticeable scars or marks on the interior of the shells valves. Those marks (known as adductor muscle scars) are often used by scientists who are in the process of identifying empty shells to determine their correct taxonomic placement. Bivalve mollusks generally have either one or two adductor muscles. The muscles are strong enough to close the valves of the shell when they contract, and they are what enable the animal to close its valves tightly when necessary, such as when the bivalve is exposed to the air by low water levels, or when it is attacked by a predator. Most bivalve species have two adductor muscles, which are located on the anterior and posterior sides of the body.[1] Some families of bivalves have ...
Previously, we reported that recA was probably lost in the early stage of RGE in Calyptogena clam symbionts [8]. The present study showed that some of the extant clam symbionts still have intact recA (Figure 2). We hypothesized that in the early phase of RGE of the clam symbionts before the loss of recA, large-sized deletions occurred due to RecA-dependent recombination [8]. This type of deletion requires repeated sequences larger than 200 bp, which have been depleted from the genomes of Rma and Vok [8, 19]. It is still not clear whether the genomes of the Calyptogena clam symbionts containing recA have large-sized (, 200 bp) repeated sequences. The presence of intact or of nearly intact recA and of mutY in clade II symbionts except for Rma suggests that the genomes of clade II symbionts are larger than those of clade I symbionts and that their RGE is in an earlier stage than in clade I symbionts. To resolve these questions, we must await their genome sequence analyses.. The coding region of ...
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March 3, Saturday, 7:34 p.m.; -0.3 feet; Mocrocks. Mocrocks is between the Copalis River and the southern boundary of the Quinault Indian Reservation just south of the Moclips River. It includes Iron Springs, Roosevelt Beach, Seabrook, Pacific Beach, and Moclips.. State shellfish managers have tentatively scheduled razor clam digs through April at Copalis, Mocrocks, Long Beach and Twin Harbors beaches. A mid-March dig might be our last on evening tides this season as we switch in April, and also if approved, low tide at noon will extend a couple of April digs by an hour.. March 16, Friday, 7:03 p.m.; +0.2 feet; Copalis, ...
La gallina turuleca Letra : Yo conozco una vecinaque ha comprado una gallina que parece una sardina enlatada,tiene las patas de alambre
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Perturbation of the reproductive cycle as well as vitellin-like protein synthesis have already been reported in Mya arenaria sampled in contaminated areas of the St. Lawrence maritime estuary (Québec, Canada). To assess the potential role of endocrine disruptors in modulating the reproductive cycle in clams, the role of sex steroids has to be clarified. We determined the levels of estradiol-17beta and testosterone during the reproductive cycle in female and male M. arenaria. Both steroids were measured by ELISA in the gonads and no differences in steroid profiles appeared between sexes. Estrogen levels varied between 150 and 400 pg g(-1) wet weight over gametogenesis and were near 10 times higher than testosterone levels. Results showed transient increases of both steroids at the onset of vitellogenesis in females and during the spawning stage in both sexes. These findings indicate that these hormones could have a role as endogenous modulators of gametogenesis. Further studies are, however, needed to
Until recently, read lengths on the Solexa/Illumina system were too short to reliably assemble transcriptomes without a reference sequence, especially for non-model organisms. However, with read lengths up to 100 nucleotides available in the current version, an assembly without reference genome should be possible. For this study we created an EST data set for the common pond snail Radix balthica by Illumina sequencing of a normalized transcriptome. Performance of three different short read assemblers was compared with respect to: the number of contigs, their length, depth of coverage, their quality in various BLAST searches and the alignment to mitochondrial genes. A single sequencing run of a normalized RNA pool resulted in 16,923,850 paired end reads with median read length of 61 bases. The assemblies generated by VELVET, OASES, and SeqMan NGEN differed in the total number of contigs, contig length, the number and quality of gene hits obtained by BLAST searches against various databases, and contig
The universal response to cellular stress involves expression of chaperones to protect and refold proteins undergoing denaturation, or to send irretrievably damaged proteins into the ubiquitin-proteasome pathway for degradation. In addition, it has become clear that protection from oxidative stress is a component of the minimal stress proteome (Kültz, 2005), and oxidative stress proteins are often increased in abundance after heat stress, including in bivalves (Tomanek and Zuzow, 2010; Fields et al., 2012a). Stress proteins form a substantial portion of the proteomic response to acute heat exposure in G. demissa, but interestingly, changes in abundance do not appear immediately (i.e. at 0 h), instead becoming apparent at the 3 h time point.. Among the stress proteins increased in abundance at 3 h are GRP78, HSP24.1 and PPIase (Fig. 4A). GRP78 is an HSP70 analog found in the endoplasmic reticulum, where it has a central role in the unfolded protein response (Lai et al., 2010) and may help limit ...
The generation of EST information is an essential step in the genomic characterisation of species. In the context of the European Network Marine Genomics, a common goal was to significantly increase the amount of ESTs in commercial marine mollusk species and more specifically in the less studied but ecologically and commercially important groups, such as mussel and clam genera. Normalized cDNA libraries were constructed for four different relevant bivalves species (Crassostrea gigas, Mytilus edulis, Ruditapes decussatus and Bathymodiolus azoricus), using numerous tissues and physiological conditions. In this paper, we present the analysis of the 13,013 expressed sequence tags (ESTs) generated. Each EST library was independently assembled and 1300-3000 unique sequences were identified in each species. For the different species, functional categories could be assigned to only about 16 to 27% of ESTs using the GO annotation tool. All sequences have been incorporated into a publicly available ...
... bivalvia; and cephalopods (Orthoceras bullatum); and fish (Cephalaspis, Cyathaspis, Auchenaspis). Silurian Ireland Silurian ...
Bivalvia)"; Molluscan Research 31(1): 53-56; ISSN 1323-5818. ...
Bivalvia. pp. 141-44 In: Vol. 3, McGraw-Hill Encyclopedia of Science and Technology, 10th Edition. McGraw-Hill, New York. Web ...
Bivalvia. Pp. 105-141, in: Ponder W.F. & Lindberg D.L. (eds), Molluscan Phylogeny. Berkeley: University of California Press, xi ...
Bivalvia. Pp. 105-141, in: Ponder W.F. & Lindberg D.L. (eds), Molluscan Phylogeny. Berkeley: University of California Press, xi ... In 2010, a new proposed classification system for the Bivalvia was published in by Bieler, Carter & Coan, revising the ... classification of the Bivalvia, including the subclass Heterodonta. The following tree is their info which has been updated ...
Moore, R. C.; Teichert, C. (1969). Bivalvia. Treatise on Invertebrate Paleontology, Part N, Mollusca 6. Lawrence, Kansas: ... 2011). "A Synoptical Classification of the Bivalvia (Mollusca)" (PDF). Paleontological Contributions. 4: 1-47. ...
Part N - Mollusca, Bivalvia Vol. 6. T.R. Waller, The evolution of ligament systems in the Bivalvia. In: Morton B., editor. ... ISBN 978-3-939767-28-2, at p. 59 E.R. Trueman, General features of Bivalvia. In: Moore R.C., editor. Bivalvia. Ligament. In: ... A Status on Bivalvia after 250 Years of Research. Hackenheim: ConchBooks. pp. 901 pp. + CD. ... 580 p. at p. 304 Morphology and postlarval development of the ligament of Thracia phaseolina (Bivalvia: Thraciidae), with a ...
Bivalvia indet. Teuthidea indet. Ammonites Dactylioceras sp. Harpoceras sp. Plantae indet. List of fossiliferous stratigraphic ...
Bivalvia: Carditidae)". Zootaxa. 4379 (2): 223. doi:10.11646/zootaxa.4379.2.4. ISSN 1175-5334. PMID 29689985. "WoRMS - World ... Pérez, Damián E.; del Río, Claudia J. (November 2017). "The family Carditidae (Bivalvia) in the early Danian of Patagonia ( ... Lockwood, Rowan; McClure, Kate J. (May 2015). "Relationships among Venericardia (Bivalvia: Carditidae) on the U.S. Coastal ... Pérez, Damián Eduardo (2019-01-15). "Phylogenetic relationships of the family Carditidae (Bivalvia: Archiheterodonta)". Journal ...
"Bivalvia Detail". Taiwan Malacofauna Database. Biodiversity Research Center, Academia Sinica. Retrieved 6 August 2012. Sinica. ...
Bivalvia indet. Gastropoda indet. Flora Pinophyta Angiospermae indet. List of dinosaur-bearing rock formations Monte Grande ...
Nematoda: Ascaris, Caenorhabditis ; Mollusca: Bivalvia); Polyplacophora; Arthropoda/Crustacea: Artemia; Arthropoda/Insecta: ...
Bivalvia, Hippuritida)" (PDF). Cretaceous Research. 90: 60-79. doi:10.1016/j.cretres.2018.04.001. V. V. Silantiev; M. N. ... Bivalvia: Carditidae)". Zootaxa. 4379 (2): 215-230. doi:10.11646/zootaxa.4379.2.4. PMID 29689985. Steffen Kiel (2018). "Three ... Javier H. Signorelli; J.G.M. (Han) Raven (2018). "Current knowledge of the family Cardiliidae (Bivalvia, Mactroidea)". Journal ... A. A. Berezovsky (2018). "New species of Crassatina (Bivalvia) from the Middle and Upper Eocene of Ukraine". Paleontological ...
1. Bivalvia. Petrefacta Germaniae 4(1):1-273 J. Prestwich. (1879). On the discovery of a species of Iguanodon in the Kimmeridge ...
A Status on Bivalvia after 250 Years of Research. Hackenheim: ConchBooks. pp. 901 pp. + CD. ISBN 978-3-939767-28-2. Williams, J ... McMahon, R. F., Bogan, A.E. (2001). Mollusca: Bivalvia. Ecology and classification of North American freshwater invertebrates. ... Bivalvia: Unionoida)?" Molecular Biology and Evolution 28(5): 1645-1659. Tanke, D.H. and Brett-Surman, M.K. 2001. Evidence of ... Bivalvia, Unionidae)." Journal of the North American Benthological Society 133: 217-222. Nichols, S. J., Silverman, H. Dietx, T ...
The Bivalvia. Proceedings of a Memorial Symposium in Honour of Sir Charles Maurice Yonge (1899-1986), Edinburgh, 1986. Hong ...
Bivalvia, Dreissenidae)". Mem Mus Civ St Nat Verona (in Italian). 20: 45-49. Elisabetta Lori; Simone Cianfanelli (2006). "New ... records of Dreissena polymorpha (Pallas, 1771) (Mollusca: Bivalvia: Dreissenidae) from Central Italy" (PDF). Aquatic Invasions ...
Bivalvia: Unionidae) in the torrente Versa (Italy). - Mollusca, 25(1): 41-49, Dresden.] [1] [Reischütz Peter L., Reischütz ... Bivalvia: Unionidae). - Nachrichtenblatt der Ersten Malakologischen Gesellschaft Vorarlbergs 7: 9-10.] Fauna europaea [maps. ...
Bivalvia indet. Dinosauria indet. - "Footprints" Ornithopoda indet. - "Footprints" Siamosaurus? - "Tooth (GMNH-PV-999)" ...
Gastropoda und Bivalvia. In: Die Fauna Südwest-Australiens. Ergebnisse der Hamburger südwest-asutralischen Forschungsreise 1905 ...
Gastropoda und Bivalvia. pp. 561-596 in Michaelsen, W. & Hartmayer, R. (eds). Die Fauna Südwest-Australiens. Jena : Gustav ...
Bivalvia: Mytilidae)" (PDF). Comptes Rendus Biologies. 335 (1): 51-61. doi:10.1016/j.crvi.2011.10.002. PMID 22226163.[2][ ... Bivalvia: Mytilus) on the Pacific coast of South America". Journal of Shellfish Research. 24 (4): 1101-1115. doi:10.2983/0730- ...
Bivalvia I. 145pp. Soc. Experimental and Descriptive Malacology. (editor, with William H. Heard)] (2007). Tahitian tree snail ...
ISBN 978-1-118-22953-8. Habe, Tadashige (1977). "Bivalvia and Scaphopoda". Systematics of mollusca in Japan: Bivalvia and ... Origin of the Molluscan Class Bivalvia and a Phylogeny of Major Groups. Pp. 1-45. In: P.A. Johnston & J.W. Haggart (eds), ... p. 5. ISBN 978-0-444-62719-3. Waller, Thomas R. (1986). "A new genus and species of scallop (Bivalvia: Pectinidae) from off ... In molecular phylogenies of the Bivalvia, both the Spondylidae and the Propeamussiidae have been resolved as sister to the ...
Legac M. (1987). Školjkaši (Bivalvia) otoka Raba. In: Mohorović A. (ed) Rapski zbornik, Zbornik radova sa znanstvenog skupa ... Šiletić, T. (2006). "Marine fauna of Mljet National Park (Adriatic Sea, Croatia). 5. Mollusca: Bivalvia." Natura Croatica: ...
Bivalvia and Scaphopoda. 372 pp., Zukan no Hokuryukan, Tokio. Waller, T. R. & Marincovich, L. jr. (1992): New species of ... Camptochlamys and Chlamys (Mollusca: Bivalvia: Pectinidae), from near the Cretaceous/Tertiary Boundary at Ocean Point, North ...
"Montana Field Guide-Bivalvia". Montana Department of Fish, Wildlife and Parks. Retrieved 2010-12-26. "Gastropoda". Montana ...
a b (in Czech) Horsák M., Juřičková L., Beran L., Čejka T. & Dvořák L. (2010). "Komentovaný seznam měkkýšů zjištěných ve volné přírodě České a Slovenské republiky. [Annotated list of mollusc species recorded outdoors in the Czech and Slovak Republics]". Malacologica Bohemoslovaca, Suppl. 1: 1-37. PDF. ...
Harvestable size of a C. virginica oyster is 75 mm, which can take from 12 to 36 months, depending on temperature, salinity of the water, and food supply.[13] Salinity is a very important climatological variable that affects spatfall. Oysters do best where salinities range from 10 to 30 ppt; the range of 15 to 18 ppt is considered optimal.[13] Typically, when salinity levels are less than 6 ppt, larvae will not settle and metamorphose into spat.[23] In 2010, 665 miles of coastline were affected by the Deepwater Horizon oil spill.[24] To keep the oil at bay and to spare the oystermen, the authorities of Louisiana made an unprecedented decision to maximize the fresh water flow through the region's canals to three times usual levels.[16] At the mouth of the canals, salinity fell to almost zero, which was probably why most of the oysters died.[16] Sujata Gupta ventured into the marshlands and Gulf of Mexico with Brad Robin, a man from a line of generations of oystermen in southeastern Louisiana. ...
... and Fordilla appear to form a clade, but whether this is in the stem or crown group of Bivalvia is unconstrained by ... "A Synoptical Classification of the Bivalvia (Mollusca)" (PDF). Paleontological Contributions. 4: 1-47.. ...
... Mussels, clams, oysters, cockles, etc.. Click on an image to view larger version & data in a new window ... The smallsubunit rRNA gene sequences of venerids and the phylogeny of Bivalvia. Journal of Molecular Evolution 48:463-468. ... Evolutionary Biology of the Bivalvia, The Geological Society Special Publication No. 177. Geological Society of London, London. ... Bivalvia. Mussels, clams, oysters, cockles, etc.. Version 01 January 1995 (temporary). http://tolweb.org/Bivalvia/19383/1995.01 ...
The taxonomic term Bivalvia was first used by Linnaeus in the 10th edition of his Systema Naturae in 1758 to refer to animals ... A Status on Bivalvia after 250 Years of Research. ConchBooks. p. 23. ISBN 978-3-939767-28-2. Yonge, C. M. (1949). The Sea Shore ... Bivalvia (/baɪˈvælviə/), in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class of marine and ... Gofas, Serge (2012). "Bivalvia". WoRMS. World Register of Marine Species. Retrieved 2012-06-30. Carter, J. G.; Altaba, C. R.; ...
Classification of Class Bivalvia (under the redaction of Rüdiger Bieler, Joseph G. Carter and Eugene V. Coan) (all taxa marked ... Gofas, Serge (2012). "Bivalvia". WoRMS. World Register of Marine Species. Retrieved 2012-06-30. Joseph G. Carter; Cristian R. ... In May 2010, a new taxonomy of the Bivalvia was published in the journal Malacologia. The 2010 taxonomy is known as the ... 2011). "A Synoptical Classification of the Bivalvia (Mollusca)" (PDF). Paleontological Contributions (published 27 October 2011 ...
Bivalvia Report on ITIS. Vernacular names[edit]. Bân-lâm-gú: Siang-khak-kong. беларуская: Двухстворкавыя. català: Bivalve. ... Osnovye cherty evoliutsii i sistema klassa Bivalvia. in Starobogatov, Y.I. (ed.). Morfologiia, Sistematika i Filogeniia ... Classification of the Bivalvia. American Museum Novitates 2206: 1-25. handle. Reference page. ... Classis: Bivalvia. Subclasses (4): Heterodonta - Palaeoheterodonta - Protobranchia - Pteriomorphia. Ordines incertae sedis (2 ...
Make research projects and school reports about Bivalvia easy with credible articles from our FREE, online encyclopedia and ... Bivalvia (bivalves; Pelecypoda, Lamelli-branchia; phylum Mollusca) A class of molluscs in which the body is laterally ... Bivalvia (Pelecypoda, Lamellibranchia; phylum Mollusca) A class of molluscs in which the body is laterally compressed, there is ... Bivalvia A Dictionary of Earth Sciences © A Dictionary of Earth Sciences 1999, originally published by Oxford University Press ...
Mollusca: Bivalvia. In J. H. Thorpe & A. P. Covich. Ecology and Classification of North American Freshwater Invertebrates, 2nd ... In Harper, E. M., J. D. Taylor & J. A. Crame (eds), The Evolutionary Biology of the Bivalvia. Geological Society, London, ... A nomenclatural review of Dreissena (Bivalvia: Dreissenidae), with identification of the quagga mussel as Dreissena bugensis. ... Phylogenetic analysis based on the morphology of viviparous freshwater clams of the family Sphaeriidae (Mollusca, Bivalvia, ...
... Dataset homepage. Citation. Valentich-Scott P, Garfinkle E A R ... Bivalvia: Glycymerididae) from Mexico. Zootaxa 2769: 65-68, DOI: 10.5281/zenodo.276860 Taxonomic Coverages. Geographic ... plazi (2011). A new species of Tucetona (Bivalvia: Glycymerididae) from Mexico. Plazi.org taxonomic treatments database. ...
Genetic Variation in a Gradient of Environmental Variability: Marine Bivalvia (Mollusca) Message Subject. (Your Name) has ...
Molecular Cytogenetics in Trough Shells (Mactridae, Bivalvia): Divergent GC-Rich Heterochromatin Content. Daniel García-Souto. ... García-Souto, D.; Pérez-García, C.; Kendall, J.; Pasantes, J.J. Molecular Cytogenetics in Trough Shells (Mactridae, Bivalvia): ... "Molecular Cytogenetics in Trough Shells (Mactridae, Bivalvia): Divergent GC-Rich Heterochromatin Content." Genes 7, no. 8: 47. ... Molecular Cytogenetics in Trough Shells (Mactridae, Bivalvia): Divergent GC-Rich Heterochromatin Content. Genes. 2016; 7(8):47 ...
Bivalvia: Dreissenidae). Title. Characterization of Intracytoplasmic Prokaryote Infections in Dreissena sp. (Bivalvia: ...
Irregularity of the linear growth of the Margaritifera margaritifera (Bivalvia: Margaritiferidae) population of the Syskyanjoki ... Bivalvia: Margaritiferidae), Biol. Bull. (Moscow), 2015, vol. 42, no. 3, pp. 232-238.CrossRefGoogle Scholar ...
Bivalvia: Unionidae) in Lake Golbasi, Turkey.(Report) by Pakistan Journal of Zoology; Zoology and wildlife conservation ... APA style: The Reproductive Cycle of Potomida littoralis (Cuvier, 1798) (Bivalvia: Unionidae) in Lake Golbasi, Turkey.. (n.d.) ... MLA style: "The Reproductive Cycle of Potomida littoralis (Cuvier, 1798) (Bivalvia: Unionidae) in Lake Golbasi, Turkey.." The ... The minute shell structure of the glochidium of some species of the genera Unio, Potomida and Anodonta (Bivalvia, Unionacea). ...
Relating Depth and Diversity of Bivalvia and Gastropoda in Two Contrasting Sub-Arctic Marine Regions. Hronn Egilsdottir1,2*, ... Citation: Egilsdottir H, McGinty N and Gudmundsson G (2019) Relating Depth and Diversity of Bivalvia and Gastropoda in Two ... Keywords: diversity, alpha diversity, beta diversity, nestedness, bivalvia, gastropoda, Arctic, Iceland. ...
BIVALVIA: UNIONIDAE). by Proceedings of the Indiana Academy of Science; Science and technology, general Bivalves Research ... Mollusca: Bivalvia. In: J.H. Thorp and A.P. Covich (Eds.), Ecology and Classification of North American Freshwater ... THE FRESHWATER MUSSELS (BIVALVIA: UNIONIDAE) OF PIGEON CREEK, A SMALL SOUTHWESTERN INDIANA TRIBUTARY OF THE OHIO RIVER.. ... THE FRESHWATER MUSSELS (BIVALVIA: UNIONIDAE) OF PIGEON CREEK, A SMALL SOUTHWESTERN INDIANA TRIBUTARY OF THE OHIO RIVER.. ...
Bivalvia).. [Angela Sacchi, Catherine Mouneyrac, Claudia Bolognesi, Andrea Sciutto, Paola Roggieri, Marco Fusi, Gian Maria ...
A new species of Lucinoma (Bivalvia: Lucinoidea) from the Oxygen Minimum Zone of the Oman Margin, Arabian Sea.. Article (PDF ... New lucinid bivalves from shallow and deeper water of the Indian and West Pacific Oceans (Mollusca, Bivalvia, Lucinidae) ... Deep-water Thyasiridae (Mollusca: Bivalvia) from the Oman Margin, Arabian Sea, new species and examples of endemism and ... A new species of Lucinoma from 240-500 m on the continental shelf break off Newfoundland (Bivalvia: Lucinidae) ...
Estrutura fina do espermatozóide de Tagelus plebeius (Lightfoot) (Mollusca, Bivalvia) do litoral norte do Brasil ... Ultrastructural study of the spermatogenesis of Anodonta cygnea L. (Bivalvia, Unionidae). Invert. Reprod. Dev. 18:169-176. [ ... Ultrastructural characteristics of spermatogenesis in Pecten maximus (Mollusca, Bivalvia). Invert. Reprod. Dev. 15:109-117. [ ... Ultrastructural and cytochemical study of spermatogenesis in Scorbicularia plana (Mollusca, Bivalvia). Gamete Res. 24:393-401 ...
Haga, T., and Kase, T. (2013). Progenetic dwarf males in the deep-sea wood-boring genus Xylophaga (Bivalvia: Pholadoidea). J. ... Bivalvia). Prog. Oceanogr. 118, 175-187. doi: 10.1016/j.pocean.2013.07.028 ... Giribert, G., and Wheeler, W. (2002). On Bivalve phylogeny: a high-level analysis of the Bivalvia (Mollusca) based on combined ... Wooden Stepping Stones: Diversity and Biogeography of Deep-Sea Wood Boring Xylophagaidae (Mollusca: Bivalvia) in the North-East ...
Prieto,A.1983.Ecología de Tivela mactroides (Born, 1778)(Mollusca:Bivalvia)en la playa La Güiria. Bol. Inst. Oceanogr. Univ. ... Fitt,W.K.&R.K.Trench.1981.Spawning,development and acquisition of zooxanthellae by Tridacna squamosa (Mollusca,Bivalvia).Biol. ... Prieto,A.1977.Contribución a la ecología de Tivela mactroides (Born,1778) (Mollusca:Bivalvia). Aspectos reproductivos y ... Prieto,A.1980.Contribución a la ecología de Tivela mactroides (Born,1778) (Mollusca:Bivalvia). Aspectos reproductivos. Bol. ...
Reproductive cycle of Spisula solida (L.) (Mollusca: Bivalvia) on the southwest coast of Spain. ...
Ezhova, E.E., New alien species in the Baltic Sea-the clam Rangia cuneata (Bivalvia: Mactridae), Mor. Ekol. Zh., 2012, vol. 11 ... Rudinskaya, L.V. and Gusev, A.A., Invasion of the North American wedge clam Rangia cuneata (G.B. Sowerby I, 1831) (Bivalvia: ... Warzocha, J. and Drgas, A., The alien gulf wedge clam (Rangia cuneata G.B. Sowerby I, 1831) (Mollusca: Bivalvia: Mactridae) in ... Genetic Diversity of the First Baltic Population of Rangia cuneata (Bivalvia: Mactridae). ...
Saether K P, Jingeng S, Little C T S, Campbell K A (2016). New records and a new species of bivalve (Mollusca: Bivalvia) from ... Bivalvia) from Miocene hydrocarbon seep deposits, North Island, New Zealand. Zootaxa 4154 (1): 1-26, DOI: http://doi.org/ ...
Population biology and secondary production of the stout razor clam Tagelus plebeius (Bivalvia, Solecurtidae) on a sandflat in ... Relation of shell form to life habits in the Bivalvia. Geological Society of America Memmorials 125: 1-296. [ Links ]. ... Population dynamics of Venus antiqua (Bivalvia: Veneracea) in the Bahía de Yaldad, Isla de Chiloé, southern Chile. Journal of ... Crescimento e produção de Tagelus plebeius (Solecurtidae: Bivalvia) no Canal do Calunga, Maceió, Alagoas. Atlântica 5 (2): 124- ...
DE KOCK KN and WOLMARANS CT (2007a) Distribution and habitats of Corbicula fluminalis africana (Mollusca: Bivalvia) in South ... Keywords: Pisidium langleyanum, pill clam, freshwater Bivalvia, geographical distribution, habitat analysis, South Africa ... HOLOPAINEN IJ (1979) Population dynamics and production of Pisidium species (Bivalvia, Spheariidae) in the oligotrophic and ... KORNIUSHIN AV (2000) Review of the family Spheariidae (Mollusca: Bivalvia) of Australia, with the description of four new ...
Leibson NL, Movchan OT (1975) Cambial zones in gills of Bivalvia. Mar Biol 31:175-180CrossRefGoogle Scholar ... In: Harper EM, Taylor JD, Crame JA (eds) The evolutionary biology of the Bivalvia. vol 177.Geological Society, London (special ... Giribet G, Wheeler WC (2002) On bivalve phylogeny: a high-level analysis of the Bivalvia (Mollusca) based on combined ... Roegner GC, Mann R (1995) Early recruitment and growth of the American oyster Crassostrea virginica (Bivalvia: Ostreidae) with ...
Either view treatise on invertebrate paleontology part n mollusca 6 bivalvia 1969 we am concerned with a EG of PART that is the ... Please devolve us if you see this is a view treatise on invertebrate paleontology part n mollusca 6 bivalvia experience. You ... I Are social view treatise on invertebrate paleontology part n mollusca 6 bivalvia 1969 I intersect to nature from Hunter to ... Contact Whether you are orientated the view treatise on invertebrate paleontology part n mollusca 6 bivalvia or luckily, if you ...
Reproduction and growth of chamelea gallina and venus verrucosa bivalvia veneridae in the lower adriatic sea ... The effect of fishing on growth of the clam Chamelea gallina Bivalvia Veneridae from the Turkish Black Sea coast. Journal of ... Age determination and growth of Venus verrucosa L Bivalvia Veneridae in the southern Adriatic and the Aegean Sea. Fisheries ... Preliminary studies of factors increasing the mortality of Chamelea gallina Bivalvia, Veneridae in anoxia and normoxia Studi ...
Shell sculpture of the Mediterranean bivalves Pinna rudis (L.) and Pinna nobilis (L.) have been compared by means of parametric and non-parametric univariate statistics, as well as techniques of joint multivariate classification and ordination. Furthermore, a quantitative definition of shell rugosity has been proposed, as an assessable factor potentially affecting anti-predatory defence and epizoic community settlement ...
Bivalvia), Russian Journal of Marine Biology" on DeepDyve, the largest online rental service for scholarly research with ... Appearance of Muscle Proteins in Ontogenesis of the Mussel Mytilus trossulus (Bivalvia). Dyachuk, V.; Plotnikov, S.; Odintsova ... Appearance of Muscle Proteins in Ontogenesis of the Mussel Mytilus trossulus (Bivalvia). Appearance of Muscle Proteins in ... Ontogenesis of the Mussel Mytilus trossulus (Bivalvia) Dyachuk, V.; Plotnikov, S.; Odintsova, N. 2005-11-14 00:00:00 The ...
Bivalvia: Pectinidae) in the northwestern Tatar Strait, Russian Journal of Marine Biology" on DeepDyve, the largest online ... The distribution, size and age compositions, and growth of the scallop Mizuhopecten yessoensis (Bivalvia: Pectinidae) in the ... The distribution, size and age compositions, and growth of the scallop Mizuhopecten yessoensis (Bivalvia: Pectinidae) in the ... Population Dynamics of the Japanese Scallop Mizuhopecten yessoensis (Bivalvia) Under Conditions of Enhanced Hydrodynamics ...
  • 2011). "A Synoptical Classification of the Bivalvia (Mollusca)" (PDF). (wikipedia.org)
  • Biomonitoring study of an estuarine coastal ecosystem, the Sacca di Goro lagoon, using Ruditapes philippinarum (Mollusca: Bivalvia). (sigmaaldrich.com)
  • Tropical deep-water lucinids (Mollusca: Bivalvia) from the Indo-Pacific: essentially unknown, but diverse and occasionally gigantic. (researchgate.net)
  • 1989. Ultrastructural characteristics of spermatogenesis in Pecten maximus (Mollusca, Bivalvia). (scielo.br)
  • 1995. Estudo ultraestrutural da espermatogenese de Donax striatus Linnaeus (Mollusca, Bivalvia) do litoral norte do Brasil. (scielo.br)
  • Comparative morphometrics of the acrosomes of the sperms of "externally" and "internally" fertilizing sperms of the shipworms (Teredinidae,Bivalvia,Mollusca). (scielo.br)
  • 1989. Ultrastructural and cytochemical study of spermatogenesis in Scorbicularia plana (Mollusca, Bivalvia). (scielo.br)
  • This dataset contains the digitized treatments in Plazi based on the original journal article Saether, Kristian P., Jingeng, Sha, Little, Crispin T. S., Campbell, Kathleen A. (2016): New records and a new species of bivalve (Mollusca: Bivalvia) from Miocene hydrocarbon seep deposits, North Island, New Zealand. (gbif.org)
  • Please reconstruct us if you Please this has a view treatise on invertebrate paleontology part n mollusca 6 bivalvia neuroscience. (vintagecarconnection.com)
  • Beninger, P.G., Le Pennec, M. and Salaun, M. (1988) New observations of the gills of Placopecten magellanicus (Mollusca: Bivalvia), and implications for nutrition. (koreascience.or.kr)
  • Two extinct Cambrian bivalved groups include the Stenothecoida and the Siphonoconcha (Parkhaev 1998) these may be nested within the Mollusca, but the absence of bilateral symmetry, enigmatic hinge structures, and shell composition places them outside of the Bivalvia as currently diagnosed. (berkeley.edu)
  • Cytology and quantitative cytochemistry of a poliferative atypical hemocytic condition in Mytilus edulis (Bivalvia, mollusca). (semanticscholar.org)
  • Kwajalein Clams (Bivalvia) This page links to photos of clams (phylum Mollusca, class Bivalvia) that we have photographed in the Marshall Islands. (denverfoundationservices.com)
  • Waller, T.R. Class Bivalvia (mussels, clams) The Bivalvia is one of two classes of the Phylum Mollusca that has representatives in fresh waters. (denverfoundationservices.com)
  • 1969). Part N: Mollusca 6, Bivalvia. (vliz.be)
  • Observations on the symbiosis with zooxanthellae among the tridacnidae (Mollusca, Bivalvia). (thefreedictionary.com)
  • With 15.000 extant species, Bivalvia represents the second largest class-level taxon within the Mollusca. (beds.ac.uk)
  • Evolutionary relationships among the higher taxa of freshwater mussels (Bivalvia: Unionoida): inferences on phylogeny and character evolution from analyses of DNA sequence Data. (springer.com)
  • Freshwater mussels (Bivalvia: Unionidae) are an integral part of aquatic communities. (thefreelibrary.com)
  • The Reproductive Cycle of Potomida littoralis (Cuvier, 1798) (Bivalvia: Unionidae) in Lake Golbasi, Turkey. (thefreelibrary.com)
  • 1990. Ultrastructural study of the spermatogenesis of Anodonta cygnea L. (Bivalvia, Unionidae). (scielo.br)
  • This dataset contains the digitized treatments in Plazi based on the original journal article Valentich-Scott, Paul, Garfinkle, Elizabeth A. R. (2011): A new species of Tucetona (Bivalvia: Glycymerididae) from Mexico. (gbif.org)
  • PDF) A new species of Lucinoma (Bivalvia: Lucinoidea) from the Oxygen Minimum Zone of the Oman Margin, Arabian Sea. (researchgate.net)
  • With about 25,000 living species, Bivalvia is second to class Gastropoda (over 74,000) in molluscan species diversity. (thefreedictionary.com)
  • XXIV-2 Chapter XXIV-Class Bivalvia Many species live for 20 years or more, and one species, Margaritifera margaritifera, has been reported to live for more than a century. (denverfoundationservices.com)
  • Pp. The class Bivalvia is one of the largest groups of invertebrates on the Pacific Northwest coast, with well over 150 species encompassing nine orders and 42 families (Table 1). (denverfoundationservices.com)
  • Developmental studies of neurogenesis among species of Bivalvia are limited. (biomedcentral.com)
  • Brachiopoda, Ostracoda and some Gastropoda), that some animals attributed to Bivalvia (e.g. (denverfoundationservices.com)
  • Our morphological data support phylogenomic data indicating a closer Bivalvia-Gastropoda sister group relationship than the Bivalvia-Scaphopoda (Diasoma) group relationship. (biomedcentral.com)
  • Snegler eller sniler (Gastropoda) er en klasse av bløtdyr . (wikipedia.org)
  • On becoming cemented: evolutionary relationships among the genera in the freshwater bivalve family Etheriidae (Bivalvia: Unionoida). (springer.com)
  • The first occurrences of Bivalvia are found in Lower Cambrian deposits, but it is not until the Lower Ordovician that bivalve diversification, both taxonomic and ecological, explodes in the fossil record. (berkeley.edu)
  • In May 2010, a new taxonomy of the Bivalvia was published in the journal Malacologia.The 2010 taxonomy is known as the Taxonomy of the Bivalvia (Bouchet, Rocroi, Bieler, Carter & Coan, 2010) [citation needed].The 2010 taxonomy was published as Nomenclator of Bivalve Families with a Classification of Bivalve Families. (denverfoundationservices.com)
  • A bivalve is an animal belonging to the class Bivalvia. (naturalkillercells.co.uk)
  • Population structure, growth and production of the surf clam Donax serra (Bivalvia, Donacidae) inhabiting highly exposed sandy beaches of Namibia, were investigated between November 1997 and December 1999. (awi.de)
  • Individuals of the clam Mytella guyanensis ( Bivalvia Mytilidae ) from the estuarine region of the Cachoeira river (Ilhéus, Bahia) have been analyzed to detect the frequency of occurrence and infected sites by protozoans of the genus Nematopsis Schneider, 1892 ( Apicomplexa Eugregarinida Porosporidae), in the period between August 2005 and May 2006. (bvsalud.org)
  • 2000. Evolutionary Biology of the Bivalvia, The Geological Society Special Publication No. 177. (tolweb.org)
  • In: Harper EM, Taylor JD, Crame JA (eds) The evolutionary biology of the Bivalvia. (springer.com)
  • 1999. The smallsubunit rRNA gene sequences of venerids and the phylogeny of Bivalvia. (tolweb.org)
  • Origin of the molluscan class Bivalvia and a phylogeny of major groups. (denverfoundationservices.com)
  • Walker, R.L. and O'Beirn, F.X. (1996) Embryonic and larval development of Spisula solidissima similis (Say, 1822) (Bivalvia: Mactridae). (marine.ie)
  • Laudien, J. , Urban, H. J. and Arntz, W. (2001): Dynamics of Donax (Bivalvia, Donacidae) populations from the Humboldt and the Benguela upwelling system: effects of interannual climate variability , Beaches - what future? (awi.de)
  • Gaspar MB, Chícharo LM, Vasconcelos P, García A, Santos AR, Monteiro CC. Depth segregation phenomenon in Donax trunculus (Bivalvia: Donacidae) populations of the Algarve coast (southern Portugal). (csic.es)
  • The taxonomic term Bivalvia was first used by Linnaeus in the 10th edition of his Systema Naturae in 1758 to refer to animals having shells composed of two valves. (wikipedia.org)
  • Although "Bivalvia" is a valid name for the class and has gained general acceptance following the Treatise on Invertebrate Palaeontology (Cox in Moore, 1969), some would prefer "Pelecypoda", on the grounds that other animal groups exist with bivalved shells (e.g. (denverfoundationservices.com)
  • Zur phylogenetischen Systematik der Sphaeriidae und Corbiculidae (Bivalvia, Venerioda). (springer.com)
  • Bivalvia (/baɪˈvælviə/), in previous centuries referred to as the Lamellibranchiata and Pelecypoda, is a class of marine and freshwater molluscs that have laterally compressed bodies enclosed by a shell consisting of two hinged parts. (wikipedia.org)
  • This symposium was convened to commemorate the work of C. M. Yonge, who throughout his long career was a master theorist who sought to integrate many originally disjunct observations on morphology and morphological functions in the Bivalvia. (jstor.org)
  • Appearance of Muscle Proteins in Ontogenesis of the Mussel Mytilus trossulus (Bivalvia) Dyachuk, V. (deepdyve.com)
  • Beninger PG, Dufour SC (1996) Mucocyte distribution and relationship to particle transport on the pseudolamellibranch gill of Crassostrea virginica (Bivalvia: Ostreidae). (springer.com)
  • Testing alternative hypotheses of Neotrigonia (Bivalvia: Trigonioida) Phylogenetic relationships using Cytochrome c Oxidase Subunit 1 DNA sequences. (springer.com)