Affiliation:
1. Institut des sciences de la mer de Rimouski, Université du Québec à Rimouski Rimouski Quebec Canada
2. Institut de biologie intégrative et des systèmes (IBIS), Université Laval, Pavillon Charles‐Eugène‐Marchand Québec Quebec Canada
Abstract
AbstractKnowledge of the larval ecology of winter‐spawning fish from the Estuary and Gulf of St. Lawrence, Canada, remains scarce due to the seasonal ice cover that prevents ichthyoplankton sampling using conventional methods. Two winter‐spawning species, Atlantic halibut (AH, Hippoglossus hippoglossus) and Greenland halibut (GH, Reinhardtius hippoglossoides), support the most important groundfish fisheries of this area. In March 2020, the authors captured 10 halibut larvae ranging in size from 5 to 14 mm during an opportunistic survey in the GSL onboard an icebreaking vessel. Of these, eight were AH and two GH. Judging by their very small size, the larvae were only a few days old, suggesting that the spawning grounds are close to the capture sites. This effort constitutes a first step in validating the putative spawning areas for these two important GSL stocks. This knowledge is important for the conservation and sustainable management of these fisheries.
Funder
Fisheries and Oceans Canada
Subject
Aquatic Science,Ecology, Evolution, Behavior and Systematics
Cited by
2 articles.
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