Marine fish egg quality indicators in aquaculture, a review of techniques and results
2011
Samaee, S.-M., University of Salzburg, Salzburg (Austria). Department of Organismic Biology | Estévez, A., Institut de Recercai Tecnologia Agroalimentàries (IRTA), Sant Carles de la Ràpita, Tarragona (Spain)
Conclusions: (i) Under a biological/physiological perspective the significant relationships found between egg BCs and embryo/larva success in common dentex highlight the Objectives: This review presents an overview on some of recent researches carried out in IRTA and University of Salzburg (2004-2010) to address this bottleneck through correlating egg biochemical contents (BC) to embryo/larva success in a marine teleost considered as new species for Mediterranean aquaculture. Target species: Besides production cost reduction and market enlargement, species diversification is one of the main strategies to ensure future expansion of aquaculture industry. A series of biological and commercial characteristics make the common dentex, Dentex dentex, a highly suitable species to enter mariculture systems as a new species to supplement the intensive sparids production and to increase diversification. Conclusions: (i) Under a biological/physiological perspective the significant relationships found between egg BCs and embryo/larva success in common dentex highlight the importance of egg composition during the initial events of embryonic/larval development. The results obtained present a series of new relationships (either in agreement or against previous findings) that deserve further investigation to define their physiological ground. (ii) Under a more applied perspective these relationships indicate a potential use of egg BCs, as bio-markers, to predict egg quality in aquaculture. These markers can also be used as molecular probes to assess the improvements in broodstock management.
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