The IUCN Red List of Threatened Species

Cetorhinus maximus (North Pacific subpopulation)

 – Endangered

Taxonomy

Kingdom: ANIMALIA
Phylum: CHORDATA
Class: CHONDRICHTHYES
Order: LAMNIFORMES
Family: CETORHINIDAE
Scientific Name: Cetorhinus maximus (North Pacific subpopulation)
Species Authority: (Gunnerus, 1765)
Common Name/s: BASKING SHARK (Eng)

Assessment Information

Red List Category & Criteria: EN A1ad    ver 2.3 (1994)
Year Assessed: 2000
Assessor/s: Fowler, S.L.
Evaluator/s: Musick, J.A. & Fowler, S. (Shark Red List Authority)
Justification: A very large filter-feeding cold-water pelagic species, widely distributed but only regularly seen in a few favoured coastal locations and probably never very abundant. Documented fisheries in several regions have usually been characterised by rapidly declining local populations as a result of short-term fisheries exploitation, followed by very slow or no recorded population recovery. There is likely potential for similar population declines to occur in the future from directed and bycatch fisheries, driven at least in part by the demand for fins in international trade. Basking sharks are now legally protected in some territorial waters. Compagno (1984) considers the basking shark "to be extremely vulnerable to overfishing, perhaps more so than most sharks ... ascribed to its slow growth rate, lengthy maturation time, long gestation period, probably low fecundity and probable small size of existing populations (belied by the immense size of individuals in their small schools)."

Geographic Range

Countries: Native:

Canada; China; Japan; Korea, Democratic People's Republic of; Korea, Republic of; Mexico; Russian Federation; United States

FAO Marine Fishing Areas: Native:

Pacific-northeast; Pacific-northwest

Population

Population Trend: Down

Habitat and Ecology

System: Marine
List of Habitats:
9.1Marine Neritic - Pelagic
10.1Marine Oceanic - Epipelagic (0-200m)

Threats

List of Threats:
3.1.3Harvesting (hunting/gathering) - Food - Regional/international trade (ongoing)
3.4.3Harvesting (hunting/gathering) - Materials - Regional/international trade (ongoing)

Bibliography

Bibliography:

Compagno, L.J.V. 1984. FAO species catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. FAO Fish. Synop. No. 125, vol. 4.

Shark Specialist Group. 2000. IUCN Shark Specialist Group Red List Assessments, 2000 (unpublished report).

Shark Specialist Group. For more information, see the Specialist Group website.


Citation: Fowler, S.L. 2000. Cetorhinus maximus (North Pacific subpopulation). In: IUCN 2007. 2007 IUCN Red List of Threatened Species. <www.iucnredlist.org>. Downloaded on 06 July 2008.
Disclaimer: To make use of this information, please check the Copyright and Data Disclaimer.
Feedback: If you see any errors or have any questions or suggestions on what is shown on this page, please fill in the feedback form so that we can correct or extend the information provided.