Implications of fisheries closures on the soundscape in areas used by southern resident killer whales (SRKW) / by Rianna Burnham and Kendra Moore. : Fs97-6/3535E-PDF
"Fisheries management measures aim to increase fish stocks; here the potential for an additional acoustic benefit to the Endangered Southern Resident Killer Whale (SRKW, Orcinus orca) by lessening disturbance was assessed. Reductions in ambient broadband noise (10 Hz to 100 kHz) were seen generally during fisheries management actions. Recordings made by moorings in western Juan de Fuca Strait showed the greatest decreases in sound levels. For all sites the changes in the SRKW communication band (500 Hz to 15 kHz) seemed to follow seasonal patterns of wind speed, whereas the echolocation frequency range SRKW (15-100 kHz) and higher frequency sound ranges showed an increasing trend from pre- to during to post-measure periods concurrent to increased recreational vessel presence. Reductions seen in Haro Strait and Boundary Pass (~0.5 dB in median sound levels) may be attributable to the voluntary vessel slowdown in place through the summer"--Abstract, page iii.
Lien permanent pour cette publication :
publications.gc.ca/pub?id=9.921178&sl=1
| Ministère/Organisme | Canada. Department of Fisheries and Oceans, issuing body. Institute of Ocean Sciences, Patricia Bay, issuing body. |
|---|---|
| Titre | Implications of fisheries closures on the soundscape in areas used by southern resident killer whales (SRKW) / by Rianna Burnham and Kendra Moore. |
| Titre de la série | Canadian technical report of fisheries and aquatic sciences, 1488-5379 ; 3535 |
| Type de publication | Série - Voir l'enregistrement principal |
| Langue | [Anglais] |
| Format | Électronique |
| Document électronique | |
| Note(s) | Includes bibliographical references (pages 45-51). Includes abstracts in English and French. |
| Information sur la publication | Sidney, BC : Ocean Sciences Division, Fisheries and Oceans Canada, Institute of Ocean Sciences, 2023. ©2023 |
| Auteur / Contributeur | Burnham, Rianna, author. |
| Description | 1 online resource (v, 69 pages) : colour illustrations, colour maps. |
| ISBN | 9780660481173 |
| Numéro de catalogue |
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| Descripteurs | Underwater acoustics -- Salish Sea (B.C. and Wash.) Fishery closures -- Salish Sea (B.C. and Wash.) Ships -- Noise -- Environmental aspects -- Salish Sea (B.C. and Wash.) Killer whale -- Effect of noise on -- Salish Sea (B.C. and Wash.) Acoustique sous-marine -- Salish, Mer des (C.-B. et Wash.) Fermeture de la pêche -- Salish, Mer des (C.-B. et Wash.) Navires -- Bruit -- Aspect de l'environnement -- Salish, Mer des (C.-B. et Wash.) Orque -- Effets du bruit sur -- Salish, Mer des (C.-B. et Wash.) |
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