The development of aquaculture activities has posed an alternative solution for the preservation of some overexploited shellfish fisheries worldwide. In the same way endangered species, such as Pinna nobilis, highly threatened by habitat loss and coastal pollution, and which populations in the Western Mediterranean Sea are being decimated by a parasite-driven mass mortality, could find in aquaculture a solution for preserving the continuity of the species.
This study described for the first time the larval development of P. nobilis, from fertilization until pediveliger larval stages, in captivity conditions; assessing the optimal rearing conditions in order to establish the bases to provide a source of individuals for restoring natural populations.
However, the authors warn that closing the biological cycle of P. nobilis in captivity appears to be rather difficult due to the large mortality rates observed during the first days of life.
The authors underline that the obtained results are conclusive on the suitability of light conditions and optimal food doses, and suggest that future experimental studies should be undertaken from a pathological approach, considering that bacterial infections could be one of the main bottlenecks in the rearing of P. nobilis larvae.
Trigos S, Vicente N, Prado P, Espinós FJ (2018) Adult spawning and early larval development of the endangered bivalve Pinna nobilis. Aquaculture 483:102-110