| Red List Category & Criteria: |
Critically Endangered
A2abcd
ver 3.1
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| Year Published: |
2007 |
| Assessor/s: |
Charvet-Almeida, P., Faria, V., Furtado, M., Cook, S.F., Compagno L.J.V. & Oetinger, M.I. |
| Reviewer/s: |
Simpfendorfer, C., Kyne, P.M. & Valenti, S.V. (Shark Red List Authority) |
| Contributor/s: |
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Justification:
A large, previously widely distributed marine, estuarine and freshwater sawfish. It has been taken in (former) directed fisheries and is extremely vulnerable to bycatch in virtually all fisheries throughout its tropical Atlantic range. The relationship of this species, to a similar form that occurs in the tropical Eastern Pacific is uncertain, but is currently being investigated, and the present assessment relates only to the Atlantic form. The species has been extirpated from most of its former range and its population status is known to be critical especially in Lake Nicaragua, other Central/South American sites and in West Africa. Artisanal and commercial landings are in decline in regions where it still occurs. Habitat degradation (mainly mangrove destruction) is also a threat. Information on biology and ecology is known only from an overfished population in Lake Nicaragua (Nicaragua), but it is a long-lived species with little capacity to recover from depletion. This species is assessed as Critically Endangered on the basis of observed and inferred declines in abundance in both the Eastern and Western Atlantic where it is believed to have been extirpated from much of its former range. Further data on the biology and trade of this species is being collected.
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| History: |
| 2007 |
– |
Critically Endangered
|
| 2000 |
– |
Critically Endangered
|
| 1996 |
– |
Endangered
|
|