ArticleProceedings. Biological sciences2023
Declines in body size of sockeye salmon associated with increased competition in the ocean.
Article in Proceedings. Biological sciences, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
9 citing papers in PubMed, 34 citations in OpenAlex.
- Temporal Comparison Reveals Weakened Genotype-Phenotype Association at a Major-Effect Locus in Dworshak National Fish Hatchery Steelhead.Evolutionary applications · 2026Article
- Climate-driven shifts in marine habitat explain recent declines of Japanese Chum salmon.Scientific reports · 2025Article
- Hatcheries to High Seas: Climate Change Connections to Salmon Marine Survival.Ecology and evolution · 2025Article
- Chr23-miR-200s and Dmrt1 Control Sexually Dimorphic Trade-Off Between Reproduction and Growth in Zebrafish.International journal of molecular sciences · 2025Article
- Shrinking sizes of trout and salamanders are unexplained by climate warming alone.Scientific reports · 2024Article
- Accounting for age: uncovering the nuanced drivers of mammal body-size responses to climate change.Journal of mammalogy · 2024Article
- Body length changes for Atlantic salmon (Ecology and evolution · 2024Article
- Sex-specific heritabilities for length at maturity among Pacific salmonids and their consequences for evolution in response to artificial selection.Evolutionary applications · 2023Article
- Declines in body size of sockeye salmon associated with increased competition in the ocean.Proceedings. Biological sciences · 2023Article
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Authors and funding
4 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Declining body sizes have been documented for several species of Pacific salmon; however, whether size declines are caused mainly by ocean warming or other ecological factors, and whether they result primarily from trends in age at maturation or changing growth rates remain poorly understood. We quantified changes in mean body size and contributions from shifting size-at-age and age structure of mature sockeye salmon returning to Bristol Bay, Alaska, over the past 60 years. Mean length declined by 3%, corresponding to a 10% decline in mean body mass, since the early 1960s, though much of this decline occurred since the early 2000s. Changes in size-at-age were the dominant cause of body size declines and were more consistent than trends in age structure among the major rivers that flow into Bristol Bay. Annual variation in size-at-age was largely explained by competition among Bristol Bay sockeye salmon and interspecific competition with other salmon in the North Pacific Ocean. Warm winters were associated with better growth of sockeye salmon, whereas warm summers were associated with reduced growth. Our findings point to competition at sea as the main driver of sockeye salmon size declines, and emphasize the trade-off between fish abundance and body size.
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Registered trials
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