Current status and threats to the North Atlantic shortfin mako shark (Isurus oxyrinchus) population in Atlantic Canada / M.A. Showell ... [et al.]. : Fs70-5/2017-039E-PDF
“The Shortfin Mako Shark (Isurus oxyrinchus) is a large pelagic shark of the family Lamnidae. This species has a pan-global distribution in temperate waters of the Atlantic, Pacific, and Indian oceans. In 2006, the Committee on the Status of Endangered Wildlife in Canada (COSEWIC) designated Mako Shark as ‘Threatened’ and recommended that it be listed on Schedule 1 of Canada’s Species at Risk Act (SARA). This classification was based on life-history characteristics that make this species vulnerable to increased mortality and a long-term decline in abundance indicators. Following the COSEWIC listing decision, a Recovery Potential Assessment (RPA) for Shortfin Mako was conducted by DFO, in which catches outside Canada’s EEZ were identified as the primary source of mortality. Live release and a maximum annual catch limit (100 t) were also recommended as measures to mitigate mortality of Shortfin Mako, in addition to fishery-independent surveys of this species to obtain more accurate population estimates for Canadian waters. Shortfin Mako is scheduled for re-assessment by COSEWIC in 2016 (i.e., a ten-year cycle). This Research Document updates information on the status of and threats to this species in support of this COSEWIC evaluation"--Introd., p. 1-2.
Lien permanent pour cette publication :
publications.gc.ca/pub?id=9.845338&sl=1
| Ministère/Organisme | Canada. Department of Fisheries and Oceans. Canadian Science Advisory Secretariat. |
|---|---|
| Titre | Current status and threats to the North Atlantic shortfin mako shark (Isurus oxyrinchus) population in Atlantic Canada / M.A. Showell ... [et al.]. |
| Titre de la série | Canadian Science Advisory Secretariat (CSAS), research document, 1919-5044 ; 2017/039, Maritimes, and Newfoundland and Labrador Regions |
| Type de publication | Série - Voir l'enregistrement principal |
| Langue | [Anglais] |
| Format | Électronique |
| Document électronique | |
| Note(s) | Cover title. “September 2017.” Includes bibliographical references (p. 11-14). Includes abstract in French. |
| Information sur la publication | Ottawa : Fisheries and Oceans Canada, Canadian Science Advisory Secretariat, 2017. |
| Auteur / Contributeur | Showell, Mark A.(Mark Alexander) |
| Description | v, 45 p. : charts (mostly col.), maps (mostly col.) |
| Numéro de catalogue |
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| Descripteurs | Endangered species Salt water fish Nature conservation |
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