Emerging asymmetric interactions between forage and predator fisheries impose management trade-offs

A size and trait-based marine community model was used to investigate interactions, with potential implications for yields, when a fishery targeting forage fish species (whose main adult diet is zooplankton) co-occurs with a fishery targeting larger-sized predator species. Predicted effects on the s...

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Bibliographic Details
Published in:Journal of Fish Biology
Main Authors: Houle, J. E., Andersen, K. H., Farnsworth, K. D., Reid, D. G.
Format: Article in Journal/Newspaper
Language:English
Published: 2013
Subjects:
EAFM
size spectrum
size-based model
trophic cascade
INDIVIDUAL-BASED MODEL
MARINE SIZE SPECTRUM
COD GADUS-MORHUA
TROPHIC CASCADES
REFERENCE POINTS
FISH COMMUNITY
ECOSYSTEM
DYNAMICS
INDICATORS
SYSTEMS
/dk/atira/pure/sustainabledevelopmentgoals/life_below_water
name=SDG 14 - Life Below Water
Gadus morhua
Online Access:https://pure.qub.ac.uk/en/publications/c0f38d7d-8900-48f9-9fdc-df77d1a8f345
https://doi.org/10.1111/jfb.12163
Description
Summary:A size and trait-based marine community model was used to investigate interactions, with potential implications for yields, when a fishery targeting forage fish species (whose main adult diet is zooplankton) co-occurs with a fishery targeting larger-sized predator species. Predicted effects on the size structure of the fish community, growth and recruitment of fishes, and yield from the fisheries were used to identify management trade-offs among the different fisheries. Results showed that moderate fishing on forage fishes imposed only small effects on predator fisheries, whereas predator fisheries could enhance yield from forage fisheries under some circumstances.

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