bivalve

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Related to Bivalves: Pelecypoda

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. Also called lamellibranch, pelecypod.
adj.
1. Having a shell consisting of two hinged valves.
2. Consisting of two similar separable parts.

bi′valved′ adj.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

bivalve

any marine or freshwater mollusc of the class Lamellibranchiata (Pelecypoda) having two hinged parts to its shell. BRACHIOPODS are also bivalves, in that there are two hinged parts to the shell, but the term is usually restricted to true molluscs.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
19) With that said, the 'potential' represents the linguistic transformation of the promises and expectations which are based on a clear scientific base--i.e., bivalves incrementally and sequentially precipitate the calcium carbonate shell with elements derived from the ambient environment.
Most studies investigating cellular and humoral defense mechanisms in marine bivalves have focused on important fisheries and aquaculture species such as the oyster Crassostrea virginica.
Most bivalves have a biphasic life cycle that consists of actively swimming planktonic larval stages (from a ciliated trochophore to a pediveliger larva) and sedentary benthic adult animals (Figure 2).
Mollusk fishing is practiced along the entire Brazilian coast especially in the estuarine regions in the Northeastern semi-arid where several species of invertebrates, mainly the bivalve Anomalocardia brasiliana, are harvested (Rodrigues et al., 2013).
For this test, the number of individuals of each bivalve species collected randomly along the beach was compared to the number of individuals of those same species collected specifically with bore holes.
The importance of calanoid copepod feeding on phytoplankton is mostly from the waters of Narragansett Bay, R.I., and penaeid shrimp and green crab, Carcinus maenas, predation on juvenile bivalves is mostly from the Netherlands.
"Global distribution of bivalves, as well as extensive data on the living species, was critical.
A notable feature in molluscan evolution, and of the bivalves in particular, has been the diversification of shell microstructural arrangements and an increase in complexity over the course of 500 million years of evolution, unprecedented in other taxa.
As filter-feeders, bivalves remove microscopic particulates from the water column, greatly enhancing water clarity and quality.
The bivalves and gastropods may form up to 75 % of the beach fauna (Fig.