Stenella coeruleoalba

– Lower Risk Conservation Dependent

Taxonomy

Kingdom:	ANIMALIA
Phylum:	CHORDATA
Class:	MAMMALIA
Order:	CETACEA
Family:	DELPHINIDAE
Scientific Name:	Stenella coeruleoalba
Species Authority:	(Meyen, 1833)
Common Name/s:	EUPHROSYNE DOLPHIN (Eng) STRIPED DOLPHIN (Eng) DAUPHIN BLEU ET BLANC (Fre) DAUPHIN RAYÉ (Fre) DELFÍN BLANCO Y AZUL (Spa) DELFÍN LISTADO (Spa)

Assessment Information

Red List Category & Criteria:

LR/cd ver 2.3 (1994)

Year Assessed:

1996

Annotations:

Needs updating

Assessor/s:

Cetacean Specialist Group

Justification:

Extract from Reeves et al. (2003, pp. 45-46): "The Striped Dolphin is cosmopolitan in tropical and temperate waters. It is generally abundant, but some [sub]populations are in serious trouble. The most important of these are in the western North Pacific and the Mediterranean Sea. Catches of Striped Dolphins in Japan have declined dramatically since the 1950s, and there is clear evidence that this decline is the result of stock depletion by over-hunting (Kasuya 1999). Although abundance estimates For Striped Dolphins in Japanese waters during the 1980s totaled more than half a million (in three areas of concentration) (Miyashita 1993), and catch limits are in force, major problems still remain. More than one population may be involved in the drive and harpoon fisheries, and Striped Dolphins have been completely or nearly eliminated from some areas of past occurrence (Kasuya 1999). The strong demand for dolphin meat in Japan makes the imposition of effective conservation measures problematic.

A different array of threats faces Striped Dolphins in the Mediterranean (Aguilar 2000). A morbillivirus epizootic caused a die-off of more than 1000 animals between 1990 and 1992. Pollution and reduced prey availability were viewed as potential triggering factors for the die-off, and these problems, together with large kills in pelagic driftnets, persist. Surveys conducted one year after the main epizootic outbreak in the western Mediterranean produced an abundance estimate of around 120,000 dolphins (Forcada et al. 1994, Forcada and Hammond 1998).
Striped Dolphins are taken directly and incidentally in many other parts of the world, but there is no evidence of major stock declines outside the western North Pacific and the Mediterranean (IWC 1998). Large incidental kills in pelagic trawl and driftnet fisheries off western Europe are a source of concern (IWC 1998, Tregenza and Collet 1998)."

History:

1994

Insufficiently Known (Groombridge 1994)

Geographic Range

Countries:

Native:

Argentina; Australia; Belgium; Brazil; Canada; China; Costa Rica; Cuba; Cyprus; Côte d'Ivoire; France; Gibraltar; Greece; Greenland; Honduras; India; Indonesia; Ireland; Italy; Jamaica; Japan; Maldives; Mexico; Monaco; Mozambique; Netherlands; New Zealand; Oman; Panama; Portugal; Russian Federation; Saint Vincent and the Grenadines; Senegal; Seychelles; Solomon Islands; South Africa; Spain; Sri Lanka; United Kingdom; United States; Uruguay; Vanuatu

FAO Marine Fishing Areas:

Native:

Atlantic-eastern central; Atlantic-northeast; Atlantic-northwest; Atlantic-southeast; Atlantic-southwest; Atlantic-western central; Indian Ocean-eastern; Indian Ocean-western; Mediterranean and Black Sea; Pacific-eastern central; Pacific-northeast; Pacific-northwest; Pacific-southeast; Pacific-southwest; Pacific-western central

Habitat and Ecology

System:

Marine

List of Habitats:

10.1	Marine Oceanic - Epipelagic (0-200m)

Threats

List of Threats:

3.1.2	Harvesting (hunting/gathering) - Food - Sub-national/national trade (ongoing)
4.1.1.2	Accidental mortality - Bycatch - Fisheries-related - Netting (ongoing)
6.3	Pollution (affecting habitat and/or species) - Water pollution (ongoing)
8.3	Changes in native species dynamics - Prey/food base (ongoing)

Bibliography

Bibliography:

Aguilar, A. 2000. Population biology, conservation threats and status of Mediterranean Striped Dolphins (Stenella coeruleoalba). Journal of Cetacean Research and Management 2: 17-26.

Forcada, J. and Hammond, P.S. 1998. Geographical variation in abundance of Striped and Common Dolphins of the western Mediterranean. Journal of Sea Research 39: 313-325.

Forcada, J., Aguilar, A., Hammond, P.S., Pastor, X. and Aguilar, R. 1994. Distribution and numbers of striped dolphins in the western Mediterranean Sea after the 1990 epizootic outbreak. Marine Mammal Science 10: 137–150.

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

IWC. 1998. Report of the scientific committee. Report of the International Whaling Commission 48: 53–302.

Kasuya, T. 1999. Review of the biology and exploitation of Striped Dolphins in Japan. Journal of Cetacean Research and Management 1: 81–100.

Miyashita, T. 1993. Abundance of dolphin stocks in the western North Pacific taken by the Japanese drive fishery. Report of the International Whaling Commission 43: 417–437.

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.

Tregenza, N.J.C. and Collet, A. 1998. Common dolphin Delphinus delphis bycatch in pelagic trawl and other fisheries in the North East Atlantic. Report of the International Whaling Commission 48: 453–459.

Citation:	Cetacean Specialist Group 1996. Stenella coeruleoalba. In: IUCN 2007. 2007 IUCN Red List of Threatened Species. <www.iucnredlist.org>. Downloaded on 17 May 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.