Larger but younger fish when growth outpaces mortality in heated ecosystem.
Perca fluviatilis
body growth
climate change
ecology
eurasian perch (perca fluviatilis)
mortality
size
size-spectrum
Journal
eLife
ISSN: 2050-084X
Titre abrégé: Elife
Pays: England
ID NLM: 101579614
Informations de publication
Date de publication:
09 05 2023
09 05 2023
Historique:
received:
25
08
2022
accepted:
10
04
2023
medline:
10
5
2023
pubmed:
9
5
2023
entrez:
9
5
2023
Statut:
epublish
Résumé
Ectotherms are predicted to 'shrink' with global warming, in line with general growth models and the temperature-size rule (TSR), both predicting smaller adult sizes with warming. However, they also predict faster juvenile growth rates and thus larger size-at-age of young organisms. Hence, the result of warming on the size-structure of a population depends on the interplay between how mortality rate, juvenile- and adult growth rates are affected by warming. Here, we use two-decade long time series of biological samples from a unique enclosed bay heated by cooling water from a nearby nuclear power plant to become 5-10 °C warmer than its reference area. We used growth-increment biochronologies (12,658 reconstructed length-at-age estimates from 2426 individuals) to quantify how >20 years of warming has affected body growth, size-at-age, and catch to quantify mortality rates and population size- and age structure of Eurasian perch (
Identifiants
pubmed: 37157843
doi: 10.7554/eLife.82996
pii: 82996
pmc: PMC10168697
doi:
pii:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Informations de copyright
© 2023, Lindmark et al.
Déclaration de conflit d'intérêts
ML, MK, AG No competing interests declared
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