Evaluation of a Wisconsin-type bioenergetics model to estimate brook charr (Salvelinus fontinalis) growth and food consumption under two salinity conditions

Chalifoux, Virginie ORCID: https://orcid.org/0009-0006-7836-4981, Audet, Céline ORCID: https://orcid.org/0000-0003-3366-210X et Deslauriers, David ORCID: https://orcid.org/0000-0002-3876-7691 (2025). Evaluation of a Wisconsin-type bioenergetics model to estimate brook charr (Salvelinus fontinalis) growth and food consumption under two salinity conditions. Canadian Journal of Fisheries and Aquatic Sciences, 82 . pp. 1-11.

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Résumé

In Québec, Canada, brook charr (Salvelinus fontinalis) is the most sought-after species for recreational fisheries, which makes it economically important. To improve population monitoring and better anticipate climate change impacts on brook charr, bioenergetics models can be useful. The objective of this research was to evaluate the performance of a resident brook charr Wisconsin Energy Budget (WEB) model applied to an anadromous strain under two salinity treatments. Growth and food consumption were predicted by the model and compared to the observed values obtained after a 60 day experiment in the laboratory on fish reared in fresh or brackish water. Predictions for fish reared in fresh water better estimated growth rate and consumption than for fish reared in brackish water, for which growth was overestimated and consumption was underestimated. Overall, these results suggest that there is a difference for the WEB model’s predictions depending on the salinity and that observed food consumption is predicted more accurately than growth.

Type de document :	Article
Validation par les pairs :	Oui
Information complémentaire :	Données de recherche disponibles sur Borealis : https://doi.org/10.5683/SP3/5A4LHI
Mots-clés :	Omble de fontaine ; Modèle bioénergétique ; Métabolisme ; Croissance ; Consommation ; Anadromie / Brook charr ; Bioenergetics model ; Metabolism ; Growth ; Consumption ; Anadromy.
Départements et unités départementales :	Institut des sciences de la mer de Rimouski (ISMER)
Date de dépôt :	07 févr. 2025 19:08
Dernière modification :	10 févr. 2025 14:58
URI :	https://semaphore.uqar.ca/id/eprint/3220