The influence of climate and prey availability on flatfishes on the Newfoundland Grand Banks ...

Fishing and environmental variability interactively affect fish population dynamics, where fishing can increase population variability in response to environmental change. Therefore, developing fisheries management strategies that account for these interactions is necessary for managing recovering p...

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Bibliographic Details
Main Author: Robertson, Matthew D.
Format: Text
Language:English
Published: Memorial University of Newfoundland 2023
Subjects:
Online Access:https://dx.doi.org/10.48336/698z-wg18
https://research.library.mun.ca/15984/
Description
Summary:Fishing and environmental variability interactively affect fish population dynamics, where fishing can increase population variability in response to environmental change. Therefore, developing fisheries management strategies that account for these interactions is necessary for managing recovering populations in a changing climate. Using a combination of ecological and population dynamics approaches, this thesis investigated the interactive effects of overfishing and environmental variability on yellowtail flounder (Limanda ferruginea) and American plaice (Hippoglossoides platessoides) populations on the Newfoundland Grand Banks, Canada. These populations were selected given their different recovery patterns following population collapse in the early 1990s, despite sharing similar life history characteristics, inhabiting similar environments, and having been managed under the same fishing moratoria. Specifically, the yellowtail flounder population recovered in four years, while the American plaice population ...