ArticlePloS one2015
Changes in Size and Age of Chinook Salmon Oncorhynchus tshawytscha Returning to Alaska.
Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 14 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
14 citing papers in PubMed.
- Mixed-maturation fisheries compromise productivity and resilience of Chinook salmon.Scientific reports · 2026Article
- Heritability and genomic basis of age-at-maturity in Chinook Salmon.The Journal of heredity · 2025Article
- Hatcheries to High Seas: Climate Change Connections to Salmon Marine Survival.Ecology and evolution · 2025Article
- In situ infestation of sea trout Salmo trutta with salmon louse Lepeophtheirus salmonis reveals parasite-induced behavioral modifications.Journal of fish biology · 2025Article
- 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
- Climate Change Shrinks and Fragments Salmon Habitats in a Snow-Dependent Region.Geophysical research letters · 2022Article
- The importance of genomic variation for biodiversity, ecosystems and people.Nature reviews. Genetics · 2021Review
- Can late stage marine mortality explain observed shifts in age structure of Chinook salmon?PloS one · 2021Article
- Y-chromosome haplotypes are associated with variation in size and age at maturity in male Chinook salmon.Evolutionary applications · 2020Article
- Recent declines in salmon body size impact ecosystems and fisheries.Nature communications · 2020Article
- The geometry of reaction norms yields insights on classical fitness functions for Great Lakes salmon.PloS one · 2020Article
- Correction: Changes in Size and Age of Chinook Salmon Oncorhynchus tshawytscha Returning to Alaska.PloS one · 2015Article
Corrections and comments
- Erratum issued
Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The average sizes of Pacific salmon have declined in some areas in the Northeast Pacific over the past few decades, but the extent and geographic distribution of these declines in Alaska is uncertain. Here, we used regression analyses to quantify decadal trends in length and age at maturity in ten datasets from commercial harvests, weirs, and spawner abundance surveys of Chinook salmon Oncorhynchus tshawytscha throughout Alaska. We found that on average these fish have become smaller over the past 30 years (~6 generations), because of a decline in the predominant age at maturity and because of a decrease in age-specific length. The proportion of older and larger 4-ocean age fish in the population declined significantly (P < 0.05) in all stocks examined by return year or brood year. Our analyses also indicated that the age-specific lengths of 4-ocean fish (9 of 10 stocks) and of 3-ocean fish (5 of 10 stocks) have declined significantly (P < 0.05). Size-selective harvest may be driving earlier maturation and declines in size, but the evidence is not conclusive, and additional factors, such as ocean conditions or competitive interactions with other species of salmon, may also be responsible. Regardless of the cause, these wide-spread phenotypic shifts influence fecundity and population abundance, and ultimately may put populations and associated fisheries at risk of decline.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.