Photo-identification catalogue and status of the northern resident killer whale population in 2019 / by Jared R. Towers, James F. Pilkington, Brian Gisborne, Brianna M. Wright, Graeme M. Ellis, John K.... : Fs97-6/3371E-PDF
"Censuses of the northern resident killer whale population using photo-identification have been conducted annually since 1973. These studies are based on photographic recapture of permanent natural markings on every individual within the population. In this report, we summarize northern resident killer whale population trends over the time series of this study and provide a photo-identification catalogue of all individuals considered to be alive in 2019. This population has grown at a mean annual rate of 2.2% since 1973 and in 2019 contained a minimum of 310 individuals. Continued annual photo-identification censusing is a key strategy to accurately document the abundance, genealogy, sociality, demographics, and health of this threatened population"--Abstract.
Lien permanent pour cette publication :
publications.gc.ca/pub?id=9.886260&sl=1
| Ministère/Organisme | Canada. Department of Fisheries and Oceans, issuing body. |
|---|---|
| Titre | Photo-identification catalogue and status of the northern resident killer whale population in 2019 / by Jared R. Towers, James F. Pilkington, Brian Gisborne, Brianna M. Wright, Graeme M. Ellis, John K. B. Ford, and Thomas Doniol-Valcroze. |
| Titre de la série | Canadian technical report of fisheries and aquatic sciences, 1488-5379 ; 3371 |
| Type de publication | Série - Voir l'enregistrement principal |
| Langue | [Anglais] |
| Format | Électronique |
| Document électronique | |
| Note(s) | The copy has been replaced on July 6, 2020 as requested by the issuing department. Includes bibliographical references (pages 6-10). Includes abstract in French. |
| Information sur la publication | [Ottawa] : Fisheries and Oceans Canada, 2020. ©2020 |
| Auteur / Contributeur | Towers, J. R.(Jared R.)author. |
| Description | 1 online resource (iv, 69 pages) : charts, photographs. |
| ISBN | 9780660347455 |
| Numéro de catalogue |
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| Descripteurs | Killer whale -- Photographic identification -- British Columbia -- Pacific Coast. Killer whale -- Monitoring -- British Columbia -- Pacific Coast. Whale populations -- British Columbia -- Pacific Coast. Orque -- Photo-identification -- Colombie-Britannique -- Pacifique, Côte du. Orque -- Surveillance -- Colombie-Britannique -- Pacifique, Côte du. Baleines -- Populations -- Colombie-Britannique -- Pacifique, Côte du. |
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