Ontogenetic changes in gill morphology and potential significance for food acquisition in the scallop <Emphasis Type="Italic">Placopecten</Emphasis><Emphasis Type="Italic">magellanicus</Emphasis>
1.Institute for Marine Biosciences, National Research Council, 1411 Oxford Street, Halifax, NS B3H 3Z1, Canada,;2.Laboratoire de Biologie Marine, Faculté des Sciences, Université de Nantes, 44322 Nantes, France,