Publications des scientifiques de l'IRD

Brehmer Patrice, Guillard J., Pinzon P. I. C., Bach Pascal. (2011). Exploratory and instantaneous swimming speeds of amphidromous fish school in shallow-water coastal lagoon channels. Estuaries and Coasts, 34 (4), p. 739-744. ISSN 1559-2723.

Titre du document
Exploratory and instantaneous swimming speeds of amphidromous fish school in shallow-water coastal lagoon channels
Année de publication
2011
Type de document
Article référencé dans le Web of Science WOS:000291259800007
Auteurs
Brehmer Patrice, Guillard J., Pinzon P. I. C., Bach Pascal
Source
Estuaries and Coasts, 2011, 34 (4), p. 739-744 ISSN 1559-2723
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.
Plan de classement
Limnologie biologique / Océanographie biologique [034]
Localisation
Fonds IRD [F B010053592]
Identifiant IRD
fdi:010053592
Contact