| spatial and temporal variations in trace metal concentrations in the cockle, austrovenus stutchburyi from otago, new zealand. | this is the first comprehensive study of sources of variation in metal concentrations within the whole tissues of a shallow burrowing, filter-feeding intertidal clam, austrovenus stutchburyi. samples were collected from 12 sites in april, august, november and february in 1993-1994 in the vicinity of otago harbour and peninsula, new zealand. total tissue trace metal concentrations (microg g(-1) dry weight) were measured in individual animals for the essential metals : mn, cu, zn, ni and the non-e ... | 2006 | 16705355 |