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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.

Permanent link to this Catalogue record:
publications.gc.ca/pub?id=9.902071&sl=0

Publication information
Department/Agency
  • Committee on the Status of Endangered Wildlife in Canada, issuing body.
  • Canada. Environment and Climate Change Canada, issuing body.
TitleCOSEWIC assessment and status report on the tope Galeorhinus galeus in Canada.
Variant title
  • COSEWIC status report on the tope Galeorhinus galeus in Canada
  • Tope Galeorhinus galeus in Canada
Publication typeMonograph
Language[English]
Other language editions[French]
Earlier editionCOSEWIC assessment and status report on the tope, Galeorhinus galeus, in Canada 2007
FormatDigital text
Electronic document
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).
Publishing information
  • Ottawa, ON : COSEWIC Secretariat, Canadian Wildlife Service, Environment and Climate Change Canada, 2021.
  • ©2021
Description1 online resource (xi, 49 pages) : illustrations, maps, graphs
ISBN9780660398242
Catalogue number
  • CW69-14/523-2021E-PDF
Subject terms
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