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Characterization of the early-stages of the wolffish hybrid Anarhichas minor × Anarhichas lupus: conservation and aquaculture applications

Published online by Cambridge University Press:  01 September 2009

Catherine M. Gaudreau ,
Nathalie R. Le François ,
Delphine Ditlecadet ,
Helge Tveiten  and
Pierre U. Blier
Catherine M. Gaudreau
Affiliation:
Département de Biologie, Université du Québec à Rimouski, Rimouski, Québec, Canada
Nathalie R. Le François
Affiliation:
Département de Biologie, Université du Québec à Rimouski, Rimouski, Québec, Canada Biodôme de Montréal, Montréal, Québec, Canada
Delphine Ditlecadet
Affiliation:
Département de Biologie, Université du Québec à Rimouski, Rimouski, Québec, Canada
Helge Tveiten
Affiliation:
Nofima Marine A/S, Muninbakken, Breivika, Tromsø, Norway
Pierre U. Blier
Affiliation:
Département de Biologie, Université du Québec à Rimouski, Rimouski, Québec, Canada
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Abstract

This is the first report of early-life developmental characteristics (coloration pattern, growth and survival) and genetic identification of the wolffish interspecific hybrid between Anarhichas minor and A. lupus, both endangered species in Canadian coastal water and of interest for cold-water aquaculture diversification. A first growth trial at 8 °C featuring pure strains A. minor and the hybrid A. minor × A. lupus in triplicates was conducted in 2006 during the period from 0 to 140 days post-hatch. A second growth trial was runned in 2007 featuring A. minor, A. lupus and the reciprocal hybrids A. minor × A. lupus and A. lupus × A. minor. Egg development indicators and early-hatching characteristics are reported.

Keywords

HybridizationAnarhichasWolffishGenetic characterizationMicrosatellite markers
Type
Brief Report
Information
Aquatic Living Resources , Volume 22 , Issue 3 , July 2009 , pp. 371 - 377
Copyright
© EDP Sciences, IFREMER, IRD, 2009

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