GROUPS OF ASSOCIATED SPECIES IN THE BENTHIC MOLLUSCS OF THE HARD BOTTOMS OF THE CATALAN (NE SPAIN) LITTORAL

Authors

  • Joandomenec Ros
Keywords: molluscs, malacocoenoses, benthos, similarity

Abstract

From the data of the PROGRAMA DE BENTOS (1972-74) samples, corresponding to six localities on the Catalan coast (Mediterranean Sea, hard substrates between O and 40 m in depth), the presence of groups of ecologically associated molluscan species is studied. Two methods have been used: a similarity index between species and a principal component analysis. Of the formed groups, some have a clear ecological or bionomic meaning, whereas others are not easy to interpret. The reduced number of species used in the analyses (only 56 of the total 189 in the similarity index, and only 21 in the principal component analysis) is the main factor blumng somewhat these results. The meaning of the obtained groups is discussed; they are also compared with the molluscan groups found in other studies: that of the benthos of Medes lslands (one of the previously studied localities), and of other Mediterranean littoral areas.

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Author Biography

Joandomenec Ros

Departament d'Ecologia Facultat de Biologia Universitat de Barcelona Barcelona
How to Cite
Ros, J. (1986). GROUPS OF ASSOCIATED SPECIES IN THE BENTHIC MOLLUSCS OF THE HARD BOTTOMS OF THE CATALAN (NE SPAIN) LITTORAL. Anales de Biología, (8), 43–51. Retrieved from https://revistas.um.es/analesbio/article/view/35841
Issue
Section
Biología ambiental