An Interdisciplinary Assessment of Winter Flounder Stock Structure ...

• Main Authors: DeCelles, Gregory R., Cadrin, Steven X.
• Format: Conference Object
• Language: unknown
• Published: ASC 2007 - Theme session K 2024
• Subjects: Fisheries and aquaculture; Technologies and data; Northwest Atlantic
• Online Access: https://dx.doi.org/10.17895/ices.pub.25258153; https://ices-library.figshare.com/articles/conference_contribution/An_Interdisciplinary_Assessment_of_Winter_Flounder_Stock_Structure/25258153

No abstracts are to be cited without prior reference to the author.Stock structure and management of winter flounder (Pseudopleuronectes americanus) was evaluated throughout its geographic range in the northwest Atlantic. Information on genetics, morphology, meristics, larval dispersal, life history traits, applied mark experiments and environmental signals was reviewed. Winter flounder in U.S. waters are currently managed as three separate units; Georges Bank, Gulf of Maine and Southern New England/Mid-Atlantic. Estuarine spawning, which likely plays an important role in reproductive isolation and population structure, appears to be obligate in southern New England, non-existent on Georges Bank and variable in the Gulf of Maine. Despite evidence for reproductively isolated estuarine groups, information from tagging, meristic analysis, and life history studies suggest extensive mixing, thereby supporting the current U.S. management regimen. In Canadian waters, winter flounder are managed as three units: ...