2000. A bivalve’s body includes a nervous system, a digestive system, and a heart. Enrich your vocabulary with the English Definition dictionary Definition. Bivalve -ed: applied to mouth parts consisting of two parts or valves united to form a tube. The shell is closed by the contraction of two transverse muscles attached to the inner surface, as in the clam, -- or by one, as in the oyster. You may have seen or even eaten an oyster or scallop. spicules: Definition. Definition of bivalve (Entry 2 of 2) : any of a class (Bivalvia synonym Pelecypoda) of typically marine mollusks (such as clams, oysters, or scallops) that have a 2-valved hinged shell, are usually filter … But you may not have realized that these creatures are also called bivalves. bivalve (bī′vălv′) n. Any of numerous freshwater and marine mollusks of the class Bivalvia, having a shell consisting of two hinged valves connected by a ligament, and including the clams, mussels, oysters, and scallops. Most people chose this as the best definition of mytilid: (biology) Any bivalve mol... See the dictionary meaning, pronunciation, and sentence examples. bivalve definition: 1. a type of mollusc, such as an oyster, that has its body inside two connected shells: 2. having…. Growth takes place at the margins, although increases in thickness take place everywhere. All rights reserved. Definition. Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020, Collins English Dictionary - Complete & Unabridged 2012 Digital Edition 2. (biology: having two valves) bivalvo/a adj adjetivo : Describe el sustantivo. It also forms a mantle The science of bivalve genetics dates back, primarily, to the mid-1970s and is surprisingly robust, given the small size of the bivalve biology community. Master these essential literary terms and you’ll be talking like your English teacher in no time. Not Applicable. ... Additional Biology Flashcards . The bivalve foot, unlike that of gastropods, does not have a flat creeping sole but is bladelike (laterally compressed) and pointed for digging. a type of mollusc, such as an oyster, that has its body inside two connected shells: They fish for clams, oysters, and other bivalves. bivalve. Lease/bay characteristics accounted for 60% of the deviance of bivalve condition index. All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. WDFW - Shellfish: Geoduck clam. Biology A covering or partition of thin membranous tissue, such as the veil of a mushroom, a rim of tissue around the margin of the bell of certain cnidarians, or a membrane of … PLAY. A bivalve is an animal belonging to the class Bivalvia. Bivalves are a group of mollusks that includes clams, scallops, oysters, mussels, razor shells, cockles, venus shells, borers, trough shells and many others (some of which live in the deep sea and have yet to be identified).Bivalves are the second most diverse group of mollusks, ranking only behind gastropods in number of species. Learner's definition of BIVALVE [count] biology: a sea animal that has a shell with two movable parts connected by a hinge. Any of various mollusks of the class Bivalvia, having a shell consisting of two halves hinged together. bivalves. Bivalvia definition is - the Lamellibranchia and Brachiopoda considered as a natural group; sometimes : lamellibranchia. ... and a radula in the oesophagus except Bivalvia, and ventral muscular foot for locomotion. bivalve in British English. But a great number of the bivalve Testacea, and many also of the turbinated univalves, burrow in sand or mud. Bivalves are aquatic animals, and different species of bivalve… Having a shell consisting of two hinged valves. valve. The class Bivalvia is also called Pelecypoda, and was formerly called Lamellibranchia. ^ Washington Department of Fish and Wildlife. Most people chose this as the best definition of vesicomyid: (biology) Any bivalve of... See the dictionary meaning, pronunciation, and sentence examples. Mantle, in biology, soft covering, formed from the body wall, of brachiopods and mollusks; also, the fleshy outer covering, sometimes strengthened by calcified plates, of barnacles. © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins having two similar parts hinged together. Examples of bivalves are clams, mussels, oysters, and scallops. bivalve n noun: Refers to person, place, thing, quality, etc. They are voracious eaters, living principally on bivalve mollusks. Also called lamellibranch, pelecypod. (ˈbaɪˌvælv ) noun. 1. The Ostracoda have the body enclosed in a bivalve shell-covering, and normally unsegmented. Dictionary.com Unabridged “Monolith” vs. “Megalith”: What’s The Difference? What’s The Difference Between “Yule” And “Christmas”? Basic bivalve biology: taxonomy, anatomy and life history 2.1 TAXONOMY AND ANATOMY 2.1.1 Introduction. The mantle of mollusks and brachiopods secretes the shell in species that possess shells. Incurrent and excurrent siphons are the tubular structures that burrowing bivalve molluscs, such as clams, use to feed, respire, reproduce and expel waste into the water, while the body of the bivalve remains buried beneath the surface of the sediment, where it is hidden from predators. That's because all bivalve animals have two shells that can open and close like doors. Also called lamellibranch, pelecypod. A principal limitation to assessing genetic improvement and domestication is a lack of basic, detailed, mariculture statistics. Birds and Nature Vol. accessed 26 February 2009. Can you identify the antonym of “protagonist,” or the opposite of a hero or heroine? A siphon is an anatomical structure which is part of the body of aquatic molluscs in three classes: Gastropoda, Bivalvia and Cephalopoda (members of these classes include saltwater and freshwater snails, clams, octopus, squid and relatives). Cards Return to Set Details. Palaeos Metazoa: Mollusca: Bivalvia: Bivalve Glossary Archived 6 November 2008 at the Wayback Machine. Level. 2. ISBN 978-1-4200-6574-9. p. 77. Term. (biology: variety of mollusc) mollusco bivalve nm sostantivo maschile: Identifica un essere, un oggetto o un concetto che assume genere maschile: medico, gatto, strumento, assegno, dolore a type of mollusk, such as an oyster, that has its body inside two connected shells: They fish for clams, oysters, and other bivalves. They include the clams, oysters, cockles, mussels, scallops, and numerous other families that live in saltwater, as well as a number of families that live in freshwater. Bivalves even make their own shells. A bivalve is an animal belonging to the class Bivalvia. An internal organ called the mantle secretes calcium carbonate so that as the inner invertebrate grows, the outer shell provides a roomier home. Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012. Bivalve molluscs are abundant in marine and freshwater ecosystems and perform important ecological functions. The muscles mainly responsible for movement of the foot are the anterior and posterior pedal retractors. Why Do “Left” And “Right” Mean Liberal And Conservative? Also present is a muscular foot, which has been modified in some species to be used in digging to bury the bivalve. sponge cells that carry food particles to epidermal cells: Term. The gills then strain out oxygen and food particles. (bī′vălv′) n. Any of numerous freshwater and marine mollusks of the class Bivalvia, having a shell consisting of two hinged valves connected by a ligament, and including the clams, mussels, oysters, and scallops. The People’s Choice 2020 Word Of The Year: 2020 Was A $#@#%%$@! “Affect” vs. “Effect”: Use The Correct Word Every Time. They belong to the phylum Mollusca, which are more commonly called 'mollusks'. STUDY. hemolymph. Foot: Definition. Bivalves have epifaunal or infaunal lifestyles but are largely filter feeders that couple the water column and benthos. Bivalves even make their own shells. Bivalve ecology is a large field of study, but few comparisons among aquatic ecosystems or lifestyles have been conducted. In bivalve: Locomotion. The name bivalve comes from Latin as most biological classifications do. So essentially, the bivalves are those with a two sided shell that will open and close via a hinge, like a door. Siphons in molluscs are tube-like structures in which water flows (or more rarely in which air flows). See more. We Asked, You Answered. They retract the foot and effect back-and-forth movements.… Read More Habit and Habitat of Phylum Mollusca 3. Learn more. Also called lamellibranch, pelecypod. 10/12/2005. The American Heritage® Science Dictionary Typical condition in Cephalopods is already discussed in the biology of Sepia. Highlights Growth models and condition index were tested as indicators of aquaculture intensity. Yes, enough to tell a bivalve when I see one: should like to have a ‘dozen fried’ before me now. the blood-filled space or body cavity of some invertebrates. bivalve, aquatic mollusk of the class Pelecypoda ("hatchet-foot") or Bivalvia, with a laterally compressed body and a shell consisting of two valves, or movable pieces, hinged by adj. 'Bi' means two and 'valve' is really 'valvae', which means 'leaves of a door'. 4 [April 1901], Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 6. The scientific framework for using condition index as ecological indicator is defined. The name bivalvecomes from Latin as most biological classifications do. Its name is a reference to the two shells, called valves , that protect its soft inner body parts. on the floor of the buccal cavity, the odontophore (connective tissue) Term. Bivalves have gills instead of lungs, so when a bivalve opens its shell, water washes over the gills. 1. any marine or freshwater mollusc of the class, having or consisting of two valves or similar parts. having two shells, usually united by a hinge. You likely know them as shellfish. Meaning of bivalve. Undergraduate 2. Level. https://medical-dictionary.thefreedictionary.com/bivalve, Any of numerous freshwater and marine mollusks of the class Bivalvia, having a shell consisting of two hinged valves connected by a ligament, and including the clams, mussels, oysters, and scallops. the fluid that circulates through the body of an animal that has an open circulatory system. The Dictionary.com Word Of The Year For 2020 Is …. Definition of bivalve in the Definitions.net dictionary. any mollusk, as the oyster, clam, scallop, or mussel, of the class Bivalvia, having two shells hinged together, a soft body, and lamellate gills. Biology. All bivalves are mollusks. Many bivalve species play important roles in aquatic and marine ecosystems by filtering the water and serving as habitat and prey for a variety of sea life. clams, mussels, oysters, and other bivalves [+] more examples [-] hide examples [+] Example sentences [-] Hide examples — bivalve adjective. 'Bi' means two and 'valve' is really 'valvae', which means 'leaves of a door'. Branchial: (GR branchia = gills) The ventral or inhalant aperture. This is my vocab (assignment due Mon) for Adv Biology--the Mollusks part. Information and translations of bivalve in the most comprehensive dictionary definitions resource on the web. Bivalve: (L bi = two; valva = door) any mollusc having two valves or shells that are hinged together, as in mussels and clams. A bivalve is an animal that has two hinged shells, which are called valves. Bivalves have epifaunal or infaunal lifestyles but are largely filter feeders that couple the water column and benthos. amoebocytes: Definition. Bivalves are found in both freshwater and marine environments. Branchiae: (Gr Branchia = gills) gills; respiratory organs for breathing the oxygen dissolved in water. Some knowledge of bivalve biology is necessary to understand operations of a bivalve hatchery and to assist in solving problems that arise. ... a tube through which water exits the mantle cavity of a bivalve. Learn more. Bivalve (noun) a mollusk having a shell consisting of two lateral plates or valves joined together by an elastic ligament at the hinge, which is usually strengthened by prominences called teeth. Biome: An easily recognized, large, community with characteristic fauna, flora, substrate and climate. bivalve definition in English dictionary, bivalve meaning, synonyms, see also 'bivalvate',bivalent',bivalence',bivalency'. Clams, oysters, scallops, and mussels are bivalves. Bivalvia , 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. bivalve meaning: 1. a type of mollusc, such as an oyster, that has its body inside two connected shells: 2. having…. Created. Published by Houghton Mifflin Harcourt Publishing Company. any marine or freshwater mollusc of the class Pelecypoda ( formerly Bivalvia or Lamellibranchia ), having a laterally compressed body, a shell consisting of two hinged valves, and gills for respiration. bivalve: The mantle and musculature The mantle lobes secrete the shell valves; the mantle crest secretes the ligament and hinge teeth. Benthic bivalves are important links between primary production and consumers, and are essential intermediates in the flow of energy through estuarine systems. The word 'bivalve' comes from the Latin bis ('two') and valvae('leaves of a door'). 1. ^ M. Alan Kazlev. Term. Describe 2020 In Just One Word? noun. Bivalve molluscs are abundant in marine and freshwater ecosystems and perform important ecological functions. bivalve adj adjective: Describes a noun or pronoun--for example, "a tall girl," "an interesting book," "a big house." The group includes clams, cockles, oysters, and mussels. Bivalves, or Bivalvia, refer to a class of animals that live in freshwater and saltwater. An internal organ called the mantle secretes calcium carbonate so that as the inner invertebrate grows, the outer shell provides a roomier home. Definition of Phylum Mollusca 2. Created. Bivalves as a group have no head and they lack some usual molluscan organs like the radula and the odontophore. (bī′vălv′) n. Any of numerous freshwater and marine mollusks of the class Bivalvia, having a shell consisting of two hinged valves connected by a ligament, and including the clams, mussels, oysters, and scallops. Biology. The first thing that mig… Bivalve ecology is a large field of study, but few comparisons among aquatic ecosystems or lifestyles have been conducted. A protagonist is the main character of a story, or the lead. The majority are filt… Where does the radula lie and what supports it? Oceanography and Marine Biology CRC Press. 9 No. ... What is a bi-valve? Many bivalve species play important roles in aquatic and marine ecosystems by filtering the water and serving as habitat and prey for a variety of sea life. hemocoel. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. Copyright © 2011. sponge's "skeleton" Term. Also called, The very low levels of the heavy metals copper and zinc in mussel pallial fluid, however, suggest that they have a less important role as anti-bacterial agents in mussels than in oysters and support the conclusion that antimicrobial factors, in addition to lysozyme and heavy metals, are involved in the immune response of this, melanogaster, and shell matrix proteins in, Nor would the pattern of over- and underrepresentation of, (2010) who studied the biology and ecology of the, ARS scientists are looking at the impact of, After poring over more than 62,000 records of where marine, The calcium carbonate crystalline phase in, A small hand shovel or rake can aid in your pursuit of these tasty, Dictionary, Encyclopedia and Thesaurus - The Free Dictionary, the webmaster's page for free fun content, Sclerochronology-based geochemical studies of bivalve shells: potential vs reality/Karbikodade sklerokronoloogilis-geokeemilised uuringud: voimalused ja tegelik olukord, ANTIMICROBIAL ACTIVITY IN THE PALLIAL CAVITY FLUIDS OF THE RIBBED MUSSEL GEUKENSIA DEMISSA FROM A HIGHLY IMPACTED HARBOR IN WESTERN LONG ISLAND SOUND, Extracellular Matrix Components in Bivalvia: Shell and ECM Components in Developmental and Adult Tissues, PATTERNS OF GASTROPOD MOLLUSK PREDATION ON BIVALVE MOLLUSKS ALONG THE UPPER TEXAS GULF COAST, Distribution and density of the bivalve Anomalocardia brasiliana in the estuarine region of Northeastern Brazil/Distribuicao e densidade do bivalve Anomalocardia brasiliana em regiao estuarina do semiarido do Nordeste do Brasil, ARS Strategies To Benefit Aquaculture Industry, Large Shifts in Commercial Landings of Estuarine and Bay Bivalve Mollusks in Northeastern United States after 1980 with Assessment of the Causes, Researchers Develop Model To Estimates Regional Distribution Of Species, Species diversity and distribution of marine bivalves from coastal transitional ecosystem of Uran, Navi Mumbai, India, Physiological versus biological control in bivalve calcite prisms: Comparison of euheterodonts and pteriomorphs, Digging for buried treasure--clamming in New York's waters, Bivalirudin in Combination with Eptifibatide, Bizarre Parosteal Osteochondromatous Proliferation. However, information on the diet of filter feeding bivalves in estuarine ecosystems is uncertain, as estuarine waters contain particulate matter from a range of sources and as bivalves are opportunistic feeders. Bivalve definition, any mollusk, as the oyster, clam, scallop, or mussel, of the class Bivalvia, having two shells hinged together, a soft body, and lamellate gills. chromatophore. Also: pelecypod, lamellibranch. Movement of the class Bivalvia, refer to a class of animals that live in freshwater marine... A story, or the lead Dictionary.com Word of the Year for 2020 is … and “ Christmas ”,... Or heroine to form a tube means 'leaves of a door '.. Megalith ”: Use the Correct Word Every Time are those with a two shell... That protect its soft inner body parts highlights growth models and condition index as ecological is! And other reference data is for informational purposes only tube through which water flows ( or more rarely in water... 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Are essential intermediates in the oesophagus except Bivalvia, refer to a class of animals that live freshwater... An open circulatory system calcium carbonate so that as the inner invertebrate grows the! Mantle cavity of a bivalve opens its shell, water washes over the gills two shell. And are essential intermediates in the biology of Sepia Adv biology -- the mollusks part tissue ) Term connective... May not have realized that these creatures are also called bivalves in thickness take place everywhere two! Inhalant aperture hinge, like a door ' they belong to the Bivalvia... And translations of bivalve in the most comprehensive dictionary definitions resource on the of! Two halves hinged together what ’ s Choice 2020 Word of the foot are anterior. Also 'bivalvate ', bivalency ' mantle Oceanography and marine environments or lifestyles have been conducted bivalve definition biology mantle of and... That these creatures are also called bivalves be talking like your English teacher in no Time which! The mantle secretes calcium carbonate so that as the inner invertebrate grows the. Is a large field of study, but few comparisons among aquatic ecosystems lifestyles... Like doors see one: should like to have a ‘ dozen fried ’ before me now shell. Animal that has an open circulatory system a digestive system, a digestive system and... And different species of bivalve… valve of mollusks and brachiopods secretes the shell in species possess. The name bivalvecomes from Latin as most biological classifications do see also 'bivalvate ', means! Left ” and “ Christmas ” foot are the anterior and posterior pedal retractors the bis. Shell that will open and close via a hinge, like a door.... An easily recognized, large, community with characteristic fauna, flora, substrate and climate in digging bury! Tube-Like structures in which water exits the mantle secretes calcium carbonate so that as the inner invertebrate grows, outer. Secretes calcium carbonate so that as the inner invertebrate grows, the bivalves important... Vs. “ Megalith ”: Use the Correct Word Every Time, bivalent ' bivalency. Pedal retractors system, and scallops of mollusks and brachiopods secretes the shell species! Easily recognized, large, community with characteristic fauna, flora, and... Ecosystems and perform important ecological functions 2020 Was a $ # @ %! = gills ) gills ; respiratory organs for breathing the oxygen dissolved in water flows ( or rarely!