Mise à jour de l'état de la population d'épaulards résidents du nord (Orcinus orca) en 2021

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Language of the publication
French
Date
2022
Type
Report
Author(s)
  • Secrétariat canadien des avis scientifiques
  • Canada. Ministère des pêches et des océans. Région du Pacifique
Publisher
Centre des avis scientifques (CAS), Région du Pacifque, Pêches et Océans Canada

Alternative title

Réponse des sciences : État de la population d’épaulards résidents du nord

Abstract

Northern Resident Killer Whales (NRKW) are currently designated as ‘Threatened’ in Canada under the Species at Risk Act, due to their small population size, low reproductive rate, and the existence of several anthropogenic threats that are likely to impede their on-going population recovery or cause future population declines (Fisheries and Oceans Canada 2018). Population censusing by photo-identifcation is a key research activity outlined in the Species at Risk Act Action Plan for Resident Killer Whales (Fisheries and Oceans Canada 2017) and has been conducted on the NRKW population each year since 1973, making it one of the longest-running, continuous time series of data for a cetacean population. This report presents updated population information for NRKW in 2021 and supplements existing publications, particularly between releases of NRKW photo-identifcation catalogues. Please cite this document according to the citation provided at the end of this report. The demographic data presented here are not intended to be analyzed for further studies without permission of DFO’s Cetacean Research Program. Please contact the corresponding author (Thomas Doniol-Valcroze) for data use requests relating to this report. This Science Response Report results from the Science Response Process of May 6, 2022 on the Report on the 2021 Northern Resident Killer Whale annual census.

Description

1 online resource (14 pages) : charts

Subject

  • Nature and environment,
  • Water

Pagination

14 pages

Identifiers

Government document number
Fs70-7/2022-027F-PDF
ISBN
9780660442365
ISSN
1919-3815

Report

Report no.
2022/027
Series title
Réponse des sciences (Secrétariat canadien des avis scientifiques)

Citation(s)

MPO. 2022. Mise à jour de l’état de la population d’épaulards résidents du nord (Orcinus orca) en 2021. Secr. can. des avis sci. du MPO. Rép. des Sci. 2022/027.

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Aquatic ecosystems

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