The IUCN Red List of Threatened Species

Mesoplodon layardii

 – Data Deficient

Taxonomy

Kingdom: ANIMALIA
Phylum: CHORDATA
Class: MAMMALIA
Order: CETACEA
Family: ZIPHIIDAE
Scientific Name: Mesoplodon layardii
Species Authority: (Gray, 1865)
Common Name/s:
EnglishLAYARD'S BEAKED WHALE, STRAP-TOOTHED WHALE
FrenchMÉSOPLODON DE LAYARD
SpanishBALLENA DE PICO DE LAYARD, ZIFIO DE LAYARD

Assessment Information

Red List Category & Criteria: DD    ver 2.3 (1994)
Year Assessed: 1996
Annotations: Needs updating
Assessor/s: Cetacean Specialist Group
History:
1994-Insufficiently Known (Groombridge 1994)

Geographic Range

Countries: Native:

Argentina (Chubut, Tierra del Fuego); Australia (New South Wales, Queensland, South Australia, Tasmania, Victoria, Western Australia); Brazil; Chile (Magellanes); Falkland Islands (Malvinas); French Southern Territories (Kerguelen); Heard Island and McDonald Islands; Madagascar; Mozambique; Namibia; New Zealand (Antipodean Is., Chatham Is.); South Africa (Eastern Cape Province, KwaZulu-Natal, Western Cape Province); Uruguay

FAO Marine Fishing Areas: Native:

Atlantic-Antarctic; Atlantic-southeast; Atlantic-southwest; Indian Ocean-Antarctic; Indian Ocean-eastern; Indian Ocean-western; Pacific-southeast; Pacific-southwest

Habitat and Ecology

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

Threats

Threats: "Mesoplodonts have been taken occasionally by whalers but are not presently the main targets of any hunt. Entanglement in fishing gear, especially gillnets in deep water (e.g., for billfish and tuna), is probably the most significant threat. In addition, there is evidence that mesoplodonts are susceptible to acoustic trauma caused, for example, by military activities (Rowles et al. 2000; Anonymous 2001)." (Reeves et al. 2003, p. 54)
List of Threats:
4.1.1.2Accidental mortality - Bycatch - Fisheries-related - Netting (ongoing)
4.1.1.3Accidental mortality - Bycatch - Fisheries-related - Entanglement (ongoing)
6.3.10Pollution (affecting habitat and/or species) - Water pollution - Noise pollution (ongoing)

Bibliography

Bibliography:

Anonymous. 2001. Bahamas marine mammal stranding event of 15–16 March 2000. Joint Interim Report, National Oceanic and Atmospheric Administration, U.S. Department of Commerce; U.S. Navy. 59 pp.

Groombridge, B. (ed.) 1994. 1994 IUCN Red List of Threatened Animals. IUCN, Gland, Switzerland.

Reeves, R.R., Smith, B.D., Crespo, E.A. and di Sciara, G.N. (compilers) 2003. Dolphins, Whales and Porpoises: 2002-2010 Conservation Action Plan for the World's Cetaceans. IUCN/SSC Cetacean Specialist Group. IUCN, Gland, Switzerland and Cambridge, UK.

Rowles, T., Ketten, D., Ewing, R., Whaley, J., Bater, A. and Gentry, R. 2000. Mass stranding of multiple cetacean species in the Bahamas on March 15–17, 2000. International Whaling Commission, Scientific Committee Document SC/52/E28. Cambridge, UK.


Citation: Cetacean Specialist Group 1996. Mesoplodon layardii. In: IUCN 2007. 2007 IUCN Red List of Threatened Species. <www.iucnredlist.org>. Downloaded on 07 September 2008.
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