Journal Article

Parental effects on early life history traits of haddock <i>Melanogrammus aeglefinus</i>

W. Nikolaus Probst, Gerd Kraus, Rick M. Rideout and Edward A. Trippel

in ICES Journal of Marine Science

Published on behalf of ICES/CIEM

Volume 63, issue 2, pages 224-234
Published in print January 2006 | ISSN: 1054-3139
Published online January 2006 | e-ISSN: 1095-9289 | DOI: https://dx.doi.org/10.1016/j.icesjms.2005.11.015
Parental effects on early life history traits of haddock Melanogrammus aeglefinus

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Gametes from five male and three female haddock (Melanogrammus aeglefinus) were crossed to produce 15 half-sibling families that were used to evaluate potential parental contributions to early life history variability. Larval morphology at 0 and 5 days post-hatch (dph) and time to starvation in the absence of food were examined. Maternal influences on larval standard length and yolk area were significant at 0 and 5 dph. Paternal effects on larval standard length were significant at 0 and 5 dph, whereas paternal effects on yolk area were only significant at 5 dph. Larval eye diameter was influenced by maternity at day 0 post-hatch and by both maternity and paternity at 5 dph. Myotome height of larvae was subject to maternal and paternal influences at 0 and 5 dph. Growth rate was significantly influenced by both paternity and maternity. Yolk utilization efficiency was significantly influenced by parental interaction, while the time taken for larvae to die in the absence of food was affected only by maternity. Results of this study not only confirm the importance of female contributions to larval development but also indicate a paternal influence on the development and the early life history success of marine fish.

Keywords: growth rate; haddock; hatch rate; larval morphology; parental effects; yolk utilization efficiency

Journal Article.  5545 words.  Illustrated.

Subjects: Environmental Science ; Marine and Estuarine Biology

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