| 词汇 | bivalve |
| 释义 | bivalve noun[ C ] biology specializeduk /ˈbaɪ.vælv/ us /ˈbaɪ.vælv/ a type of mollusc, such as an oyster, that has its body inside two connected shells: 双壳贝类（如牡蛎） They fish for clams, oysters, and other bivalves. Isabelle Rozenbaum & Frederic Cirou/PhotoAlto Agency RF Collections/GettyImages Scallops are mobile and can escape pollutants that immobile bivalves like mussels, clams and oysters cannot avoid. The zebra mussel, a black-and-white striped bivalve, is a highly invasive species. At the oyster processing plant, employees on mounted platforms shucked bivalves by the dozens. Sea creatures abalone amphipod anemone barnacle barrier reef crab cray crayfish crustacean cuttlefish lobster marron mollusc mussel octopus shipworm shrimp snow crab soft-shell clam squid bivalve adjective[ before noun ] biology specializeduk /ˈbaɪ.vælv/ us /ˈbaɪ.vælv/ having a body inside two connected shells: a bivalve mollusc Mussels are bivalve animals, while gastropods like snails and limpets have one shell. The plovers eat worms, various crustaceans, insects, and occasionally bivalve mollusks. There are species that live in the sea and never move, such as bivalve molluscs. Razor clams are edible bivalve shellfish. Sea creatures abalone amphipod anemone barnacle barrier reef crab cray crayfish crustacean cuttlefish lobster marron mollusc mussel octopus shipworm shrimp snow crab soft-shell clam squid Examples of bivalvebivalve Apart from biological papers on living bivalves, evolutionary biology in this volume mostly seems to mean phylogeny. In contrast, bivalves from the low (,201⁄2) saline concentration area were named 'epidemic bivalve'. Structure of protistan parasites found in bivalve molluscs. The bivalve zones are only known from the northern part of the basin. Thin-shelled bivalves, gastropods, crinoids and entomozoaceans dominate the fossil content. The increase in bivalve diversity has, however, not been relentless. It is for these reasons and due to the low numbers collected that bivalves were not included in the multivariate analyses. Both bivalves were used to extract haemolymph on the same day. They include deposit and suspension feeding polychaetes, bivalves, and crustaceans as well as endobenthic predatory polychaetes and nemertines. Abundant concretions at several levels contain well-preserved ammonoids, bivalves and occasional fish. These modes of deposition facilitated preservation of dinosaur trackways, desiccation cracks, shallow-tier trace fossils and in situ bivalve colonies through rapid burial. The fauna is limited to ammonites and a species of epifaunal bivalve. Image analysis : a new method for estimating triploidy in commercial bivalves. It is immediately clear that anybody seriously interested in the evolution of bivalves should study it. Brachiopods, cephalopods (ammonoids and one nautiloid) and bivalves are rare. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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