IUCN Red List Assessment
Red List Category
EN
Endangered
Red List Criteria
D
Version
3.1
Year Assessed
2008
Assessor/s
Reilly, S.B., Bannister, J.L., Best, P.B., Brown, M., Brownell Jr., R.L., Butterworth, D.S., Clapham, P.J., Cooke, J., Donovan, G.P., Urbán, J. & Zerbini, A.N.
Reviewer/s
Taylor, B.L. & Notarbartolo di Sciara, G. (Cetacean Red List Authority)
Justification
The major decline occurred more than three generations ago. The number of reproductively active females was determined to be 70 animals in 1998. Even allowing for the possibility that some mothers have been missed in the identification catalogue, this means that the total number of mature (i.e. reproductively active) individuals is well below the Endangered threshold of 250. The eastern North Atlantic subpopulation, if it still exists, is clearly extremely small (fewer than 50 mature individuals). If listed separately, it would be classified as Critically Endangered, Possibly Extinct (CR PE).
History
- 1996Endangered
- 1996Endangered
- 1994Endangered(Groombridge 1994)
- 1994Endangered(Groombridge 1994)
- 1990Endangered(IUCN 1990)
- 1990Vulnerable(IUCN 1990)
- 1988Endangered(IUCN Conservation Monitoring Centre 1988)
- 1986Endangered(IUCN Conservation Monitoring Centre 1986)
