ArticleProceedings. Biological sciences2021
Associations between metabolic traits and growth rate in brown trout (
Article in Proceedings. Biological sciences, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed, 9 citations in OpenAlex.
- Gut microbial composition varies with host metabolic phenotype in juvenile Atlantic salmon.The Journal of experimental biology · 2026Article
- Pacific Cod metabolism and swimming performance are similar across temperatures following prolonged thermal acclimation.Conservation physiology · 2025Article
- Evolutionary relationships between metabolism and behaviour require genetic correlations.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2024Review
- Declining metabolic scaling parallels an ontogenetic change from elongate to deep-bodied shapes in juvenile Brown trout.Current zoology · 2023Article
- Egg incubation temperature influences the population-specific outmigration rate of juvenile brown trout Salmo trutta.Journal of fish biology · 2022Article
- Predator-Prey Interactions between Nonnative Juvenile Largemouth Bass (Life (Basel, Switzerland) · 2022Article
- Associations between metabolic traits and growth rate in brown trout (Proceedings. Biological sciences · 2021Article
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Authors and funding
7 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Metabolism defines the energetic cost of life, yet we still know relatively little about why intraspecific variation in metabolic rate arises and persists. Spatio-temporal variation in selection potentially maintains differences, but relationships between metabolic traits (standard metabolic rate (SMR), maximum metabolic rate (MMR), and aerobic scope) and fitness across contexts are unresolved. We show that associations between SMR, MMR, and growth rate (a key fitness-related trait) vary depending on the thermal regime (a potential selective agent) in offspring of wild-sampled brown trout from two populations reared for approximately 15 months in either a cool or warm (+1.8°C) regime. SMR was positively related to growth in the cool, but negatively related in the warm regime. The opposite patterns were found for MMR and growth associations (positive in warm, negative in the cool regime). Mean SMR, but not MMR, was lower in warm regimes within both populations (i.e. basal metabolic costs were reduced at higher temperatures), consistent with an adaptive acclimation response that optimizes growth. Metabolic phenotypes thus exhibited a thermally sensitive metabolic 'floor' and a less flexible metabolic 'ceiling'. Our findings suggest a role for growth-related fluctuating selection in shaping patterns of metabolic variation that is likely important in adapting to climate change.
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