Status of the bivalve beds - South coast of Portugal (October 1999)
2001
Gaspar, M.B. | Monteiro, C.C.
It was carried out a survey along the south coast of Portugal, between 2 of September and 6 October of 1999, in order to obtain information on the biology, distribution and abundance of the most important bivalve stocks - white clam (Spisula solida), striped venus (Chamelea gallina), sabre clam (Ensis siliqua), razor clam (Pharus legumen) and the donax clam (Donax trunculus). The mean fishing yield obtained for Spisula solida and Pharus legumen increased in relation to 1998. On the contrary, the mean fishing yield observed for Donax trunculus decreased along the south coast of Portugal. At present, Chamelea gallina is widely distributed along the Portuguese south coast. In the case of Ensis siliqua, although the mean fishing yield obtained was very low, it was observed a small increase on the abundance of this species, which may indicate the beginning of the recovery of its beds
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