In May 1993 a single specimen of P litoralis was found
among Sargassum muticum (Yendo) washed ashore on
the littoral of the Eastern Scheldt, Colijnsplaat, The
Netherlands. It was thereafter collected in great numbers,
at the beginning of September 1995, from the
littoral of the Channel (France) near Wimereux (Digue
de la Creche, Station de Biologie Marine), Audresselles
(Pointe du Nid de Corbet) and Cap Griz-Nez .
It occurred in psammon and especially among different
species of seaweeds (e .g . Ceramium spp ., Chondrus crispus Stackhh., Cladophora rupestris (L .), Cladostephus spongiosus (Huds.), Corralina officinalis
spp ., Rhodochorton purpureum (Lightf.) both
from the medio-littoral and the infra-littoral fringe . The
accompanying rotifer fauna was very poor and consisted
Analysis of the gut contents shows that P litoralis
is feeding on substrate bound diatoms, e .g . Synedra investiens Wm. Smith, Licmophora juergensii Ag. and
especially Grammatophora angulosa Ehrbg. The deep
antero-ventral sinus found in P litoralis is probably an
adaptation which allows the intake of diatom species
with high frustules (e.g . Grammatophora) .
Littoral, among Sargassum muticum
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TrustedProales litoralis De Smet, 1996
Appears under "Habitat"
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© Leasi, Francesca
Author: Leasi, Francesca
Compiler: Leasi, Francesca
- 2012-04-23 04:32:04 UTC
- 2011-11-23 08:07:07 UTC