Journal
AQUACULTURE RESEARCH
Volume 40, Issue 14, Pages 1585-1593Publisher
WILEY-BLACKWELL PUBLISHING, INC
DOI: 10.1111/j.1365-2109.2009.02258.x
Keywords
Senegalese sole; quality; deformity; wild larvae; hatchery-reared larvae
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Funding
- Portuguese Foundation for Science and Technology-FCT and FEDER [POCTI/CVT/42098/2002]
- Spanish Ministry of Science and Innovation [PN-AGL2006-13777-C03-02]
- CCMAR
- FCT [BPD/14528/2003]
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The Senegalese sole is a marine pleuronectiform that naturally occurs in Southern Europe and Mediterranean region where it is being produced in aquaculture, in particular in Portugal and Spain. The aim of this study was to assess the quality of hatchery-reared larvae in comparison with those reared in the wild, and determine to which extension wild growing larvae are also affected by skeletal deformities. The main structures affected included those forming the axial skeleton, the caudal fin complex and both anal and dorsal fins, with the most prevalent anomalies affecting caudal vertebrae and arches. Hatchery-reared fish presented a higher incidence of deformities (79%) compared with the 19% observed in wild specimens. In wild postlarvae collected in Autumn no deformities were observed. This work clearly shows that wild Senegalese sole present less skeletal deformities than those hatchery-reared during larval stages, indicating a selective mortality of wild deformed fish and/or an effect of aquaculture-related rearing conditions in the development of skeletal deformities in sole.
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