| Harpacticoid copepods (Crustacea) of the Bay of Saint-Brieuc (Western Channel, France) were collected in winter and late spring 1988, at five intertidal and six subtidal sites. 140 species (many new and some rare) were identified, and several diversity indices (Shannon; Fisher et al.; Margalef) were calculated for the different sites: very high values were obtained at some of them, specially in heterogeneous sediment (H' = 5.26). Pearson's correlation coefficients show that diversity was positively correlated with TOM and depth. Correspondence factorial analyses applied to dominant species suggested the existence of an intertidal fine sand assemblage, with a low salinity ''facies'' (sensu Bodin, 1977), and a subtidal heterogeneous muddy sand assemblage,... |
