|Distribution patterns of two bivalve species (Nucula turgida, Tellina fabula) along a frontal system in the southern North Sea|
Creutzberg, F. (1986). Distribution patterns of two bivalve species (Nucula turgida, Tellina fabula) along a frontal system in the southern North Sea. Neth. J. Sea Res. 20(2-3): 305-311
In: Netherlands Journal of Sea Research. Netherlands Institute for Sea Research (NIOZ): Groningen; Den Burg. ISSN 0077-7579, more
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The distributional patterns of diverse marine soft-bottom invertebrates in the southern North Sea are considered in the light of relevant hydrodynamic and sedimentological conditions, with two species of bivalves, Nucula turgida and Tellina fabula as examples. Four possible mechanisms that may result in spatially differentiated abundances of benthic populations are discussed: A. Settling larvae may act like passive suspended particles being deposited on the sea floor at sites where sediments with similar sinking rates would settle. B. The upcurrent presence of rich sources of larvae, viz. dense adult populations. C. Active habitat selection by settling larvae.D. Spatially differentiated survival of larvae, once they have settled.