ArticleProceedings of the National Academy of Sciences of the United States of America2016
Roles of density-dependent growth and life history evolution in accounting for fisheries-induced trait changes.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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18 citing papers in PubMed, 74 citations in OpenAlex.
- Demographic feedbacks during evolutionary rescue can slow or speed adaptive evolution.Proceedings. Biological sciences · 2024Article
- An evolutionary explanation of female-biased sexual size dimorphism in North Sea plaice,Ecology and evolution · 2023Article
- Genomic basis of fishing-associated selection varies with population density.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- Density influences the heritability and genetic correlations of fish behaviour under trawling-associated selection.Evolutionary applications · 2021Article
- Marine food web perspective to fisheries-induced evolution.Evolutionary applications · 2021Article
- Genomic stability through time despite decades of exploitation in cod on both sides of the Atlantic.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- Interacting forces of predation and fishing affect species' maturation size.Ecology and evolution · 2020Article
- Eco-evolutionary dynamics driven by fishing: From single species models to dynamic evolution within complex food webs.Evolutionary applications · 2020Article
- Article
- Century-long cod otolith biochronology reveals individual growth plasticity in response to temperature.Scientific reports · 2020Article
- Unidirectional response to bidirectional selection on body size. I. Phenotypic, life-history, and endocrine responses.Ecology and evolution · 2020Article
- Fisheries-induced evolution of alternative male life history tactics in Coho salmon.Evolutionary applications · 2020Article
- Reaction norm analysis reveals rapid shifts toward delayed maturation in harvested Lake Erie yellow perch (Evolutionary applications · 2019Article
- Size-selective fishing and the potential for fisheries-induced evolution in lake whitefish.Evolutionary applications · 2018Article
- Article
- Historic changes in length distributions of three Baltic cod (Ecology and evolution · 2017Article
- Reply to Enberg and Jørgensen: Ecology and evolution both matter for explaining stock dynamics.Proceedings of the National Academy of Sciences of the United States of America · 2017Article
- Conclusion that fishing-induced evolution is negligible follows from model assumptions.Proceedings of the National Academy of Sciences of the United States of America · 2017Article
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Authors and funding
6 authors at 3 institutions in 4 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The relative roles of density dependence and life history evolution in contributing to rapid fisheries-induced trait changes remain debated. In the 1930s, northeast Arctic cod (Gadus morhua), currently the world's largest cod stock, experienced a shift from a traditional spawning-ground fishery to an industrial trawl fishery with elevated exploitation in the stock's feeding grounds. Since then, age and length at maturation have declined dramatically, a trend paralleled in other exploited stocks worldwide. These trends can be explained by demographic truncation of the population's age structure, phenotypic plasticity in maturation arising through density-dependent growth, fisheries-induced evolution favoring faster-growing or earlier-maturing fish, or a combination of these processes. Here, we use a multitrait eco-evolutionary model to assess the capacity of these processes to reproduce 74 y of historical data on age and length at maturation in northeast Arctic cod, while mimicking the stock's historical harvesting regime. Our results show that model predictions critically depend on the assumed density dependence of growth: when this is weak, life history evolution might be necessary to prevent stock collapse, whereas when a stronger density dependence estimated from recent data is used, the role of evolution in explaining fisheries-induced trait changes is diminished. Our integrative analysis of density-dependent growth, multitrait evolution, and stock-specific time series data underscores the importance of jointly considering evolutionary and ecological processes, enabling a more comprehensive perspective on empirically observed stock dynamics than previous studies could provide.
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