Biology of Acadian redfish and implications for optimum yield in a mixed‐species fishery ...

• Main Author: Cadrin, Stephen X.
• Format: Conference Object
• Language: unknown
• Published: ASC 2011 - Theme session A 2024
• Subjects: Ecosystem observation, processes and dynamics; Pressures, impacts, conservation, and management; atlantic cod; Gadus morhua
• Online Access: https://dx.doi.org/10.17895/ices.pub.25028615; https://ices-library.figshare.com/articles/conference_contribution/Biology_of_Acadian_redfish_and_implications_for_optimum_yield_in_a_mixed_species_fishery/25028615

No abstracts are to be cited without prior reference to the author.The New England fishery for Acadian redfish (Sebastes fasciatus) is managed as part of the mixedspecies demersal fishery. The fishery was traditionally managed according to the status of principal groundfish species: Atlantic cod (Gadus morhua), haddock (Melanogrammus aeglefinnus), and yellowtail flounder (Limanda ferruginea), and recent management of each stock remains largely focused on gadoid and flatfish species. However, the life history of redfish differs from that of other species in the fishery in several important ways. The live‐bearing reproductive strategy of redfish (ovovivipary) is associated with much lower fecundity than that of other gadoid and flatfish species and may involve depensatory forms of density‐dependent stock–recruit relationships. Redfish have much greater longevity, lower natural mortality rate, and slower growth than other New England groundfish. Their morphology also confers size‐selectivity patterns different ...