Dipturus lanceorostratus

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

Conservation Actions

Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
ANIMALIA	CHORDATA	CHONDRICHTHYES	RAJIFORMES	RAJIDAE

Scientific Name:

Dipturus lanceorostratus

Species Authority:

(Wallace, 1967)

Common Name/s:

English

–

Rattail Skate

Synonym/s:

Raja lanceorostrata

Assessment Information [top]

Red List Category & Criteria:	Data Deficient ver 3.1
Year Assessed:	2004
Assessor/s	Smale, M.J. (SSG Subequatorial Africa Regional Workshop, September 2003)
Evaluator/s:	Cavanagh, R.D., Kyne, P.M. & Fowler, S.L. (Shark Red List Authority)
Justification: This endemic skate is apparently a very rare species and is known from only three specimens from Mozambique (off the Limpopo river at approximately 435 m) despite fairly extensive research surveys in the area recently. Considered Data Deficient at this time, it may be found in deeper waters when these are surveyed more thoroughly. It could be threatened by trawl and longline fisheries off Mozambique.

Geographic Range [top]

Range Description:	Known from only three specimens to date from the continental shelf off the Limpopo River mouth, Mozambique. This is despite fairly extensive surveys off Mozambique recently (Compagno et al. 1989, Compagno, pers. comm. 2003).
Countries:	Native: Mozambique
FAO Marine Fishing Areas:	Native: Indian Ocean – western

Population [top]

Population:	Apparently very rare.
Population Trend:	Unknown

Habitat and Ecology [top]

Habitat and Ecology:	A poorly known skate of the slope.
Systems:	Marine

Threats [top]

Major Threat(s):	Trawling and longline fishing.

Major Threat(s):

Trawling and longline fishing.

Conservation Actions [top]

Conservation Actions:	None. Further surveys are needed to better determine the distribution, habitat, biology and ecology of this and other little known species in the region.

Conservation Actions:

None. Further surveys are needed to better determine the distribution, habitat, biology and ecology of this and other little known species in the region.

Citation:	Smale, M.J. 2004. Dipturus lanceorostratus. In: IUCN 2008. 2008 IUCN Red List of Threatened Species. <www.iucnredlist.org>. Downloaded on 02 December 2008.
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