Hatcheries constitute nowadays the only viable solution to support the husbandry of bivalve molluscs due to the depletion and/or overexploitation of their natural beds. Hatchery activities include the broodstock conditioning and spawning, rearing larvae and spat, and the production of microalgae to feed all stages of the production cycle. However, outbreaks of disease continue to be the main bo...

The passive bioacoustic technique has the principle of operation is to use underwater sound recording equipment, collecting signals emitted by fish during spawning season, analyze software, through which it possible identify identified species name, population size, and location broodstock in study area. In this study, we used a combination method analyzing density eggs larvae croaker Tien Yen ...

The European catfish (Silurus glanis L., 1758) is an important species for the aquaculture sector and production of quality broodstock in artificial fertilization methods as well. One crucial steps determining success reproduction to obtain sufficient good-quality sperm. aim this study compare two different used sperm from catfish. first method surgery extraction testicular taking testicles (CS...