| genetic differentiation in relation to marine landscape in a broadcast-spawning bivalve mollusc (placopecten magellanicus). | marine bivalves are sessile or sedentary as adults but have planktonic larvae which can potentially disperse over large distances. consequently larval transport is expected to play a prominent role in facilitating gene flow and determining population structure. the sea scallop (placopecten magellanicus) is a dioecious species with high fecundity, broadcast spawning and a c. 30-day planktonic larval stage, yet it forms discrete populations or 'beds' which have significantly different dynamics and ... | 2006 | 16689898 |