Microrépartition des algues épilithiques sur les cailloux d'un torrent Corse, le Rizzanèse

Abstract

A study of the composition and structure of epilithic algal populations at several places on the same pebble revealed two groups:1) on the downstream face and the center of the upper face of the stone;2) on the upstream face and the center of the lower face of the stone.A statistical analysis showed that the population on the upper face, because of its greatest stability, was the most representative of the algal community of stony substrata. © Masson, 1986.