期刊
AQUACULTURE RESEARCH
卷 51, 期 4, 页码 1720-1730出版社
WILEY
DOI: 10.1111/are.14519
关键词
attraction of wild fish; flesh quality; Pollachius virens L; salmon farming; waste feed
类别
资金
- EEA Grants [013-ABEL-IM-2013]
- ES07-EEA Grants
- Norwegian Seafood Research Fund through the ProCoEx project [900772]
- Norwegian Research Council through the project 'ECOCOAST'
- Universidad Complutense de Madrid
- Juan de la Cierva Program [FJCI-2014-20100]
- Ministerio de Ciencia, Innovacion y Universidades [IJCI-2017-34174]
Salmon farms attract large amounts of wild fish, which prey on uneaten feed pellets. The modified diet of the wild fish aggregating at salmon farms may reduce the flesh quality of the fish, influencing the local fisheries. We compared the quality of saithe (Pollachius virens) captured near (farm associated-FA) or more than 5 km away (un-associated-UA) from salmon farms in Norway. The fish were captured during summer, autumn and spring using two commercial fishing methods (jigging and bottom nets). Overall, the fillet quality of FA saithe was good, although it was clearly reduced for almost 10% of the catch. Moreover, the quality of the FA saithe was significantly reduced compared with UA saithe, but the differences were small. Our results also showed that fish caught with jigging had better quality than fish caught with nets, and that fish that died in the nets were of lower quality than fish that were alive after hauling. There was no clear variation among seasons in fillet quality. Although no major and overall differences in quality were found between FA and UA saithe, reduced quality for even a modest proportion of the fish may influence the value of the total catch.
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