Local, Seasonal, and Yearly Condition of Juvenile Greenland Halibut Revealed by the Le Cren Condition Index

Ghinter, Léopold, Ait Youcef, Wahiba, Lambert, Yvan, Morgan, M. Joanne et Audet, Céline ORCID: https://orcid.org/0000-0003-3366-210X (2021). Local, Seasonal, and Yearly Condition of Juvenile Greenland Halibut Revealed by the Le Cren Condition Index. Transactions of the American Fisheries Society, 150 (6). pp. 730-747.

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Résumé

An understanding of biological characteristics, such as growth patterns, condition, and energy reserves, is important for better understanding the environmental constraints exerted on fish populations. This is especially true for exploited fish stocks in the current context of climate change. Using biological data collected from 2006 to 2009 during bottom trawl research surveys by Fisheries and Oceans Canada in the estuary and Gulf of St. Lawrence (EGSL) as well as data from 2000 to 2018 in the northwest Atlantic, we sought to improve our knowledge on the seasonal condition of Greenland Halibut Reinhardtius hippoglossoides juveniles and to better understand the divergence in some life history traits between juveniles captured in these two regions. We validated the use of the Le Cren condition index and evaluated its relationship with energetic status in juvenile (20–32-cm TL) Greenland Halibut. In the EGSL, juvenile condition was higher in winter and spring compared to summer and fall. Such variations may result from this species’ pelagic predation activity and prey availability. Juveniles captured in the EGSL during 2016–2017 were larger but had a lower condition index than those captured in the northwest Atlantic, but we found no indication of earlier sexual maturation in the EGSL that could explain the sex ratio differences we observed in catches from these two areas.

Type de document :	Article
Validation par les pairs :	Oui
Information complémentaire :	This is the peer reviewed version of the following article: Ghinter, L., Ait Youcef, W., Lambert, Y., Morgan, M.J. and Audet, C. (2021), Local, Seasonal, and Yearly Condition of Juvenile Greenland Halibut Revealed by the Le Cren Condition Index. Trans Am Fish Soc, 150: 730-747., which has been published in final form at https://doi.org/10.1002/tafs.10324. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited. // Ceci est la version révisée par les pairs de l'article suivant : Ghinter, L., Ait Youcef, W., Lambert, Y., Morgan, M.J. and Audet, C. (2021), Local, Seasonal, and Yearly Condition of Juvenile Greenland Halibut Revealed by the Le Cren Condition Index. Trans Am Fish Soc, 150: 730-747., qui a été publié sous sa forme finale à l'adresse suivante: https://doi.org/10.1002/tafs.10324. Cet article peut être utilisé à des fins non commerciales conformément aux conditions générales d'utilisation des versions auto-archivées de Wiley. Cet article ne peut être amélioré, enrichi ou transformé en une œuvre dérivée sans l'autorisation expresse de Wiley ou sans les droits statutaires prévus par la législation applicable. Les mentions de copyright ne doivent pas être supprimées, masquées ou modifiées. L'article doit être lié à la version d'enregistrement de Wiley sur Wiley Online Library et toute intégration, encadrement ou autre mise à disposition de l'article ou de ses pages par des tiers à partir de plates-formes, services et sites web autres que Wiley Online Library est interdite.
Version du document déposé :	Post-print (version corrigée et acceptée)
Départements et unités départementales :	Institut des sciences de la mer de Rimouski (ISMER)
Déposé par :	DIUQAR UQAR
Date de dépôt :	05 juill. 2023 20:05
Dernière modification :	05 oct. 2023 15:40
URI :	https://semaphore.uqar.ca/id/eprint/2353

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