| Biology of Molluscs |
General characteristics of molluscs
Classification
|
| Biology of bivalves |
External morphology: shell, mantle and foot
Habits and life styles: soft bottom excavators, fixed surface inhabitants, surface free inhabitants.
Feeding and growth.
Digestion, circulation, respiration, excretion.
Nervous system and sense organs.
Reproduction.
Embryonic and larval development.
Classification. |
| Commercial bivalves |
Mytilus galloprovincialis
Cardium edule
Tapes decussatus
Venerupis pullastra
Ostrea edulis
Pecten maximus
Chlamys opercularis
Chlamys varia |
| Commercial cephalopods |
Sepia officinalis
Loligo vulgaris
Illex coindetti
Octopus vulgaris |
| Commercial crustaceans |
Palaemon serratus
Palinurus elephas
Homarus gammarus
Necora puber
Maja squinado
Nephros norvegicus
Pollicipes pollicipes |
| Pelagic fishes |
General characteristics
Distribution and Habitat
Feeding and growth
Biological cycle
Reproduction: nesting areas, larvae and larval mortality, absolute fertility
Sardine
Anchovy
Herring
Mackerel
Horse Mackerel |
| Oceanic pelagic fishes |
Tuna: generalities
Commercial tuna
Buefin tuna
Thunnus alalunga |
