From freshwater bivalves

Zebra mussel (Dreissena polymorpha) is a freshwater bivalve belonging to the Dreissenidae family. The common name, zebra, refers to the zebra stripes pattern on the shell and the scientific name, polymorpha, is derived from the many morphs or forms which occur in the shell color pattern, including albino and solid black or... 

Modified from Zakour, H.R. 1980. Toxicity, Uptake and Metabolism of the /V-methyl-carbamate Pesticide Carbofuran by the Freshwater Bivalve Mollusc Glebula rotundata (Lamarck). Ph.D. Thesis, Rice University, Houston. 148 pp. 

The incremental nature of shell growth in bivalves provides an opportunity for detailed temporal reconstruction of past environments (e.g. Weidman et al. 1994) and their widespread distribution from freshwater to deep-sea environments make them particularly useful for palaeoenviron-mental reconstructions. However, as Freitas et al. (2006) highlight, the potential of bivalves as useful geochemical proxies remains to be fuUy realized and these authors cite the limited number of calibration and validation studies completed to date. 

Capone A, Rosati F, Focarelli R (1999) A 140-kDa glycopeptide from the sperm ligand of the vitelline coat of the freshwater bivalve Unio elongatidus, only contains o-linked oligosaccharide chains and mediates sperm-egg interaction. Mol Reprod Dev 54 203-207... 

The bioconcentration factor (BCF) for chromium(VI) in rainbow trout (Salmo gairdneri) is 1. In bottom-feeder bivalves, such as the oyster (Crassostrea virginica), blue mussel (Mytilus edulis), and soft shell clam (Mya arenaria), the BCF values for chromium(III) and chromium(VI) may range from 86 to 192 (EPA 1980, 1984a Fishbein 1981 Schmidt and Andren 1984). The bioavailability of chromium(ni) to freshwater invertebrates (Daphnia pulex) decreased with the addition of humic acid (Ramelow et al. 

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