UDTR — Radar mondial des droits de la Nature

Data from: Interpopulation variation in the ecological performance of an invasive freshwater fish under current and near-future climatic conditions

Identification

Clé publique

radar:r-fe42dfc1252f4a44f010ae65ed76c125

Auteurs

Storey, Kate · Mandrak, Nicholas · Ricciardi, Anthony

Année déclarée

2026

Langue déclarée

en

Type source

Dataset

Première détection

2026-11-13T15:28:27.620798+00:00

Dernière observation des métadonnées

2026-11-13T15:28:27.620798+00:00

Dernière vérification HTTP

Non effectuée

Institutions déclarées par la source

McGill University · University of Toronto

Résumé documentaire — langue originale

Goldfish (Carassius auratus), a globally invasive species, is increasing in abundance in lakes and ponds within the Laurentian Great Lakes region. We hypothesized that selection pressures imposed on feral goldfish populations that have adapted to urban and natural ponds would result in elevated ecological performance compared to cultivated pet-store goldfish. We tested the hypothesis by comparing the functional response (foraging efficiency) and temperature tolerance (critical thermal maximum, CTmax) of feral and cultivated goldfish under current (18°C) and projected future (26°C) surface water temperatures. After acclimation to projected climate conditions, all goldfish populations displayed higher maximum feeding rates and temperature tolerances. Feral goldfish had higher maximum feeding rates than cultivated goldfish at both temperature treatments, indicative of higher trophic impact potential. In contrast, the CTmax of goldfish did not vary significantly among populations. Collectively, these results indicate that temperature and intraspecific variation influence the foraging efficiency of goldfish and thus could mediate their ecological impacts. Population-level variation in foraging suggests that selection in urban and natural ponds may increase the ecological impact of introduced goldfish.

Identifiants

DOI

10.5061/dryad.j6q573nvr

Repères documentaires

Famille documentaire

dataset

Types déclarés par les sources

Dataset

Éditeurs

Dryad

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Sources

DataCite · Document 1

• Document · https://datadryad.org/dataset/doi:10.5061/dryad.j6q573nvr

Statut documentaire

Pertinence à examiner

Bibliothèque

Cette identité n’est pas encore intégrée à la Bibliothèque juridique.