Exploratory and instantaneous swimming speeds of amphidromous fish school in shallow-water coastal lagoon channels

Abstract : Fish school swimming speeds is essential for ecological and management studies. The multibeam sonar in horizontal beaming provided dynamic echo traces of mobile fish schools. We used two school swimming speed indicators: the average of a series of instantaneous speed values, and the exploratory speed. These swimming speeds were estimated for each fish school observed on the basis of their Euclidian position within the sonar beams. The average ISS values per school ranged from 0.15 m s(-1) to 4.46 m s(-1), while the ESS values per school were lower, ranging from 0.04 m s(-1) to 3.77 m s(-1). Multibeam sonar technology makes it possible to measure fish school swimming speeds in their natural habitat at small spatio-temporal scales. This methodology can therefore be used to analyse in situ their movements, and has a wide range of applications in behavioural studies and management purposes.
Liste complète des métadonnées

http://hal.ird.fr/ird-00607866
Contributeur : Patrice Brehmer <>
Soumis le : lundi 11 juillet 2011 - 15:50:49
Dernière modification le : jeudi 11 janvier 2018 - 06:22:24
Document(s) archivé(s) le : mercredi 12 octobre 2011 - 02:27:41

Fichiers

Brehmer_et_al_2010_EC_b.pdf
Fichiers produits par l'(les) auteur(s)

Identifiants

Citation

Patrice Brehmer, Jean Guillard, P. I. C. Pinzon, Pascal Bach. Exploratory and instantaneous swimming speeds of amphidromous fish school in shallow-water coastal lagoon channels. Estuaries and Coasts, Springer Verlag, 2011, 34 (4), pp.739-744. 〈10.1007/s12237-011-9409-3〉. 〈ird-00607866〉

Partager

Métriques

Consultations de la notice

449

Téléchargements de fichiers

797