Feeding selectivity in larvae of the European hake (Merluccius merluccius) in relation to ontogeny and visual capabilities
Marine Biology, ISSN: 0025-3162, Vol: 158, Issue: 6, Page: 1349-1361
2011
- 39Citations
- 74Captures
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Article Description
Feeding ecology was analysed for the first time in the larvae of the European hake (Merluccius merluccius) to determine whether their diet and selectivity were constrained by environmental conditions and how these feeding characteristics were related to ontogeny, prey availability and visual capabilities. Larvae collected during both day and night were analysed, and it was found that feeding incidence was high, regardless of the time of day. Examination of the visual system corroborated the hypothesis that hake larvae should be able to cope with a wide range of photic conditions and to forage even at low light intensity. A clear preference for adult calanoid copepods and, especially, for Clausocalanus spp. was observed in all sizes analysed. Prey number increased with larval size, but prey size did not. This finding indicates that hake larvae behave as selective and specialist predators that consume an increasing number of prey rather than larger prey during larval growth. © 2011 Springer-Verlag.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=79957528367&origin=inward; http://dx.doi.org/10.1007/s00227-011-1654-2; http://link.springer.com/10.1007/s00227-011-1654-2; http://link.springer.com/content/pdf/10.1007/s00227-011-1654-2; http://link.springer.com/content/pdf/10.1007/s00227-011-1654-2.pdf; http://link.springer.com/article/10.1007/s00227-011-1654-2/fulltext.html; https://dx.doi.org/10.1007/s00227-011-1654-2; https://link.springer.com/article/10.1007/s00227-011-1654-2; http://www.springerlink.com/index/10.1007/s00227-011-1654-2; http://www.springerlink.com/index/pdf/10.1007/s00227-011-1654-2
Springer Science and Business Media LLC
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