and an introduced adult clam population raised in acommon habitat of the French Atlantic
coast were examined over a 74-wk period. The indigenous species, Tapes decussatus
L.(Jeffreys) and the introduced species, T. philippinarum (Adams & Reeve) were raised
together on the south Finistère coast of Brittany. The gross biochemical composition of a
standard animal of each population was significantly correlated with the population …