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Freshwater Molluscs Lee, Jacqueline S.
2000
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Abstract: Within the large group of animals known as molluscs, three subgroups snails, mussels and clams have representatives that live in fresh water. Because all freshwater molluscs have hard shells that are often washed up on shores, they are some of the most conspicuous of the freshwater invertebrates. About 180 species of freshwater molluscs are known to occur in Canada. Of these, at least 85 species, including 54 snails, 5 mussels and 26 clams, are found in British Columbia. Although a few freshwater molluscs are believed to have survived the last period of glaciation in B.C., most species have repopulated the province within the past 10 000 years, moving in from adjacent unglaciated areas. Freshwater molluscs are an integral part of the complex web of life that supports biodiversity. Like other invertebrates, they play an important role in nutrient cycling, functioning as decomposers and as critical links in the food chain.
 
Lee, Jacqueline S.. 2000. Freshwater Molluscs. Ministry of Environment, Lands and Parks. Species At Risk brochure
 
Topic: Species and Ecosystems at Risk
Keywords: species at risk, freshwater mollusc, sara
ISSN:  Scientific Name: Acroloxus coloradensis, Gonidea angulata, Fossaria truncatula, Valvata tricarinata
ISBN: 0-7726-7691-7 English Name: Threeridge Valvata, Rocky Mountain Capshell, Attenuate Fossaria, Western Ridgemussel
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