Spatio-temporal persistence of the Abra Alba- pectinaria koreni muddy-fine sand community of the eastern bay of seine

摘要

The spatial distribution and temporal variations of the Abra alba-Pectinaria koreni community from the eastern part of the Bay of Seine were investigated through four winter surveys (1986, 1987, 1988 and 1991). A grid of 40-67 stations was sampled each year using a Hamon grab (0.25 m~-2) for macrofauna collection and sediment analysis. The fauna was dominated by polychaetes and in a lower part by molluscs and echinoderms.