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Maladaptive changes in multiple traits caused by fishing: impediments to population recovery
Abstract
Some overharvested fish populations fail to recover even after considerable reductions in fishing pressure. The reasons are unclear but may involve genetic changes in life history traits that are detrimental to population growth when natural environmental factors prevail. We empirically modelled this process by subjecting populations of a harvested marine fish, the Atlantic silverside, to experimental size‐biased fishing regimes over five generations and then measured correlated responses across multiple traits. Populations where large fish were selectively harvested (as in most fisheries) displayed substantial declines in fecundity, egg volume, larval size at hatch, larval viability, larval growth rates, food consumption rate and conversion efficiency, vertebral number, and willingness to forage. These genetically based changes in numerous traits generally reduce the capacity for population recovery.
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Cites
The measurement of selection on correlated characters
Lande, R., & Arnold, S. J. (1983) · Evolution · doi:10.1111/j.1558-5646.1983.tb00236.x · Cited by 5,437
Collapse and recovery of marine fishes
Hutchings, J. A. (2000) · Nature · doi:10.1038/35022565 · Cited by 912
Cited by
Marine defaunation: Animal loss in the global ocean
McCauley, D. J., Pinsky, M. L., Palumbi, S. R., Estes, J. A., Joyce, F. H., & Warner, R. R. (2015) · Science · doi:10.1126/science.1255641 · Cited by 1,305
Biro, P. A., & Post, J. R. (2008) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0708159105 · Cited by 447
Sharpe, D. M. T., & Hendry, A. P. (2009) · Evolutionary Applications · doi:10.1111/j.1752-4571.2009.00080.x · Cited by 370
Human selection of elk behavioural traits in a landscape of fear
Ciuti, S., Muhly, T. B., Paton, D. G., McDevitt, A. D., Musiani, M., & Boyce, M. S. (2012) · Proceedings of the Royal Society B: Biological Sciences · doi:10.1098/rspb.2012.1483 · Cited by 284
Resilience and Recovery of Overexploited Marine Populations
Neubauer, P., Jensen, O. P., Hutchings, J. A., & Baum, J. K. (2013) · Science · doi:10.1126/science.1230441 · Cited by 276
Metadata
- Authors
- Walsh, M. R., Munch, S. B., Chiba, S., & Conover, D. O.
- Venue
- Ecology Letters
- Publisher
- Wiley
- Published
- 2005-11-22
- Volume
- 9
- Issue
- 2
- Pages
- 142-148
- ISSN
- 1461-023X (ISSN-L)
- 1461-0248
- OpenAlex
- W2151643690
- Cited by
- 400
- References
- 2
- FWCI
- 15.67
- Type
- journal article
- Language
- en
- Open access
- closed
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- Walsh, M. R., Munch, S. B., Chiba, S., & Conover, D. O. (2006). Maladaptive changes in multiple traits caused by fishing: impediments to population recovery. Ecology Letters. https://doi.org/10.1111/j.1461-0248.2005.00858.x
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
