IUCN Red List Assessment
Red List Category
Red List Criteria
At least a 30% reduction in the range-wide population size is suspected over a period of three generations (45-48 years), including the past and future, based on increasing levels of bycatch and habitat degradation in recent years. Generation length (15-16 years) was assumed to be similar to that of Sotalia fluviatilis – a species that lives in similar habitat and has similar, but better known, life history characteristics (Taylor et al. 2007 estimated generation length for S. fluviatilis as 15.6 years). The species therefore qualifies as Vulnerable A4cd. Given the vast area and complexity of coastline inhabited by this species, it is unlikely that a more quantitative assessment of the global population will be feasible in the near future.
- 1996Data Deficient
- 1994Insufficiently Known(Groombridge 1994)
- 1990Insufficiently Known(IUCN 1990)
- 1988Insufficiently Known(IUCN Conservation Monitoring Centre 1988)
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