Estudio faunistico del litoral de Blanes. III. Sistemática de cnidarios, briozoos y equinodermos

Abstract

Studies have been carried out on the distribution and abundance of cnidarians, bryozoans and echinodermates of a small area of Blanes (Gerona) coast, corresponding to superior infralittoral level, between 3 and 12 metres in wich three bionomical aspects have been found slightly different: A, lightened and beatened areas with photophilic species; B, less lightened and beatened areas, with species of more sciaphil character; C., little lightened areas with typical coraligenomyc species.
With the autonomous diving-suit, 35 cnidarian species habe been coilected, 25 of which are hidrozoans and 10 antozoans. 8 of those species have been described for the first time in the Iberian peninsula and 8 in the catalan coast. 24 bryozoan species have been studied; which are distribued as follows: ectroprocta ctenostomata, 4 species; ectoprocta quilostomata, 19 species; ectoprocta ciclostomata, 1 specie. 6 species of equinodermata, 3 of ophiuroidea, 2 of asteroidea and 1 of echinoidea have appared. The groups have been bionomical and faunistically inventaried. Conclusions on abundance, bionomical distribution and epibiosis of the species of the studied area have been drawn.