MOLLUSCS
•BIOTOPS•SPECIES and ZONATION
BIOTOPS1. Type of
substrate2. Exposed area3. Temperature,
light4. Salinity5. Tides : emersion
and submersion
SPECIES and DISTRIBUTION
1. Species and caracteristics
2. Zonation
Crassostrea gigas
Gibbula umbilicalis
Gibbula cineraria
Calliostoma zizyphinum
Charonia rupicunda
Ascophyllum nodosum
Lichens
Pelvetia canaliculata
Fucus spiralis
Fucus vesiculosus
F.serratus
Upper
Middle
LowerGibbula cineraria
Gibbula umbilicalis
Hinia reticulata
Crassostrea gigas
Calliostoma zizyphinumCharinia rupicunda
THE ROCKY INTERTIDAL ZONATION
CONCLUSION
A good excursion