Abstract

A standing population ofRangia cuneata Gray was sampled at one station on the Trent River (Neuse river watershed; eastern North Carolina) 12 times between November 9, 1965, and July 6, 1967. Length-frequency analysis of the clams revealed five distinct size groups, which were recognizable in three or more consecutive samples. From the progession of lengths in the size groups, two growth parameters were estimated in order to construct hypothetical von Bertalanffy curves describing growth inRangia cuneata. The derived growth equations indicate that the clam reaches its maximum length of about 75 mm in approximately 10 years.

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