Phocoena dioptrica

– Data Deficient

Taxonomy

Kingdom:

ANIMALIA

Phylum:

CHORDATA

Class:

MAMMALIA

Order:

CETACEA

Family:

PHOCOENIDAE

Scientific Name:

Phocoena dioptrica

Species Authority:

Lahille, 1912

Synonym/s:

Australophocaena dioptrica (Lahille, 1912)

Common Name/s:

English	—	SPECTACLED PORPOISE
French	—	MARSOUIN DE LAHILLE, MARSOUIN À LUNETTES
Spanish	—	MARSOPA DE ANTEOJOS

Taxonomic Notes:

Was listed in the 1996-2002 IUCN Red Lists as Australophocaena dioptrica. "Barnes (1985) proposed Australophocoena to house this species, but Rosel et al. (1995) did not find the generic separation warranted."

Assessment Information

Red List Category & Criteria:

DD ver 2.3 (1994)

Year Assessed:

1996

Annotations:

Needs updating

Assessor/s:

Cetacean Specialist Group

Justification:

Extract from Reeves et al. (2003, pp. 49): "This small porpoise has a fairly broad distribution in subantarctic and cold temperate waters of the Southern Hemisphere (Goodall and Schiavini 1995, Brownell and Clapham 1999). It is uncertain whether the animals near large islands and island groups (e.g., Falkland, South Georgia, Kerguelen, Heard, Tasmania, Macquarie, Auckland, and Antipodes) constitute separate [sub]populations, and similar uncertainty exists for the groups found along the South American mainland (e.g., Uruguay and Tierra del Fuego). Sightings made far offshore between 54ºS and 59ºS (IWC 1991) suggest that there may be some movement across expanses of open ocean. The Spectacled Porpoise remains a very poorly known species, and its conservation status is uncertain in all areas. Some mortality occurs in fishing gear, but the scale of this mortality relative to population abundance and rate of increase is completely unknown."

History:

1994	-	Insufficiently Known as Australophocaena dioptrica (Groombridge 1994)
1996	-	Data Deficient as Australophocaena dioptrica (Baillie and Groombridge 1996)

Geographic Range

Countries:	Native: Antarctica; Argentina; Australia (Macquarie Is., Tasmania); Brazil; Chile; Falkland Islands (Malvinas); French Southern Territories (Kerguelen); Heard Island and McDonald Islands; New Zealand (Antipodean Is.); South Georgia and the South Sandwich Islands; Uruguay
FAO Marine Fishing Areas:	Native: Atlantic-Antarctic; Atlantic-southwest; Indian Ocean-Antarctic; Indian Ocean-eastern; Pacific-southeast; Pacific-southwest

Habitat and Ecology

System:

Marine

List of Habitats:

9.1	Marine Neritic - Pelagic
10.1	Marine Oceanic - Epipelagic (0-200m)

Threats

List of Threats:

4.1.1.2	Accidental mortality - Bycatch - Fisheries-related - Netting (ongoing)
4.1.1.3	Accidental mortality - Bycatch - Fisheries-related - Entanglement (ongoing)

Bibliography

Bibliography:

Brownell JR., R.L. and Clapham, P.J. 1999. Spectacled Porpoise Phocoena dioptrica (Lahille, 1912). In: S.H. Ridgway and R. Harrison (eds) Handbook of Marine Mammals. Volume 6: The Second Book of Dolphins and the Porpoises, pp. 379–391. Academic Press, San Diego.

Goodall, R.N.P. and Schiavini, A.C.M. 1995. On the biology of the Spectacled Propoise, Australophocaena dioptrica. Report of the International Whaling Commission (Special Issue) 16: 411–453.

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

IWC. 1991. Report of the scientific committee. Report of the International Whaling Commission 41: 51–219.

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.

Citation:	Cetacean Specialist Group 1996. Phocoena dioptrica. In: IUCN 2007. 2007 IUCN Red List of Threatened Species. <www.iucnredlist.org>. Downloaded on 29 August 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.