Individual habitat transitions of Atlantic herring Clupea harengus in a human-modified coastal system
Rattachement africain : no, es. Niveau de preuve : code pays fourni par la source.
Le résumé fourni par la source
Pelagic marine fish often display highly dynamic migration patterns. However, such movement behaviour is usually studied at the population or school level, while less is known about individual movement characteristics and habitat transitions. During March 2012 to June 2013, we used acoustic tags and moored receivers to monitor the behaviour of Atlantic herring Clupea harengus L. (N = 47) throughout a range of habitats on the Skagerrak coast in southern Norway. Five of the tagged herring entered a former lake transformed into an artificial estuary by a human-made canal linking the former lake to the open ocean. Herring resided in this system for up to 36 d. All tagged herring left the fjord where they were tagged by early August 2012. This habitat transition was detected by the receivers as 3 main pulses of tagged individuals, which were assumed to be formed by putative populations mixing in the area. Most transitions occurred during nighttime regardless of tidal cycle, and it is suggested that spawning is the primary driver for entering the fjord and artificial estuary. Later detections at a separate receiver system 17 km to the northeast suggest that some herring may overwinter in coastal areas. In the spring of 2013, 3 of the tagged herring returned to their original fjord tagging location. Our study reveals new aspects of herring migration dynamics linked to anthropogenic modifications of connectivity, and suggests that capacity for individual behaviours in schooling fish may be underestimated.
Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.
Le contrôle bibliographique ouvert
DOI retrouvé dans Crossref DOI retrouvé ; titre concordant.
- Titre Crossref
- Individual habitat transitions of Atlantic herring Clupea harengus in a human-modified coastal system
- Date Crossref
- 03/02/2015
- Éditeur
- Inter-Research Science Center
- Type
- journal-article
Ce recoupement confirme des métadonnées liées au DOI. Il ne confirme ni la méthode ni les conclusions de l’étude, et il ne compte pas comme une seconde source scientifique indépendante.
Où se fait cette recherche
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Norwegian Institute of Marine Research pays non établi dans la noticeStructure de recherche
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Institute of Marine Research pays non établi dans la noticeStructure de recherche
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University of Bergen pays non établi dans la noticeUniversité ou école supérieure
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University of Oslo Department of Biology pays non établi dans la noticeUniversité ou école supérieure
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University of Agder pays non établi dans la noticeUniversité ou école supérieure
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Faculty of Science and Engineering Department of Natural Sciences pays non établi dans la noticeUniversité ou école supérieure
Norwegian Institute of Marine Research, Institute of Marine Research et University of Bergen, avec 3 autres affiliations.
Une affiliation ne permet pas de déduire la nationalité d’un auteur.