COSEWIC assessment and status report on the tope Galeorhinus galeus in Canada. : CW69-14/523-2021E-PDF
"This Pacific coast shark is considered to be a single migratory population off the west coast of North America. More than 800,000 individuals, primarily large adults, were killed for their livers between 1937 and 1949. In 2012, the coastwide population was estimated at about 10% of historical abundance. Commercial fishery catch rates and research vessel surveys suggest greater abundance in Canadian waters from 2012 to 2018 compared with 2003 to 2011. The main ongoing threat is bycatch in commercial trawl and longline groundfish fisheries, which continues at low levels in Canada and the United States. Targeting and retention of this shark has been prohibited in Canada, although mortality rates upon release are unknown. Population recovery is further limited by its slow growth rate and low fecundity"--Reason for designation, page iii.
Lien permanent pour cette publication :
publications.gc.ca/pub?id=9.902071&sl=1
| Ministère/Organisme | Committee on the Status of Endangered Wildlife in Canada, issuing body. Canada. Environment and Climate Change Canada, issuing body. |
|---|---|
| Titre | COSEWIC assessment and status report on the tope Galeorhinus galeus in Canada. |
| Variante du titre | COSEWIC status report on the tope Galeorhinus galeus in Canada Tope Galeorhinus galeus in Canada |
| Type de publication | Monographie |
| Langue | [Anglais] |
| Autres langues publiées | [Français] |
| Édition précédente | COSEWIC assessment and status report on the tope, Galeorhinus galeus, in Canada 2007 |
| Format | Électronique |
| Document électronique | |
| Note(s) | Cover title. "Special concern 2021"--Cover. Issued also in HTML format. Issued also in French under title: Évaluation et rapport de situation du COSEPAC sur le milandre Galeorhinus galeus au Canada. Includes bibliographical references (pages 34-39). |
| Information sur la publication | Ottawa, ON : COSEWIC Secretariat, Canadian Wildlife Service, Environment and Climate Change Canada, 2021. ©2021 |
| Description | 1 online resource (xi, 49 pages) : illustrations, maps, graphs |
| ISBN | 9780660398242 |
| Numéro de catalogue |
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| Descripteurs | Galeorhinus galeus -- Conservation -- Pacific Ocean. Galeorhinus galeus -- Conservation -- British Columbia. |
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