Fisheries hydroacoustics at the Pacific Biological Station in Nanaimo, BC

Auteurs-es

  • R. Kieser Pacific Biol. Station, Dept. of Fisheries & Oceans, Nanaimo, BC, Canada

Mots-clés :

oceanographic techniques, sonar, underwater sound, hydroacoustics, fishes, plankton, underwater remote sensing, echo integration, Pacific hake, salmon

Résumé

Les méthodes hydroacoustiques constituent un outil important pour repérer et évaluer les poissons et le plancton. Divers appareils acoustiques puissants sont maintenant utilisés couramment par les pêcheurs, les gestionnaires et les scientifiques. Leur efficacité repose sur plusieurs principes fondamentaux qui rendent possible la télédétection de paramètres biologiques sous l'eau. Un certain nombre de techniques acoustiques sont utilisées régulièrement à la Station de biologie du Pacifique située à Nanaimo, et on en donne ici une brève description. On utilise, à titre d'exemples, un levé par intégration des échos de merlus du Pacifique et une expérience qui compare un dénombrement visuel et acoustique de saumons.

Fichiers supplémentaires

Publié-e

1984-10-01

Comment citer

1.
Kieser R. Fisheries hydroacoustics at the Pacific Biological Station in Nanaimo, BC. Canadian Acoustics [Internet]. 1 oct. 1984 [cité 3 oct. 2024];12(4):26-3. Disponible à: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/532

Numéro

Vol. 12 No. 4 (1984)

Rubrique

Articles techniques

Licence

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