Dipturus lanceorostratus
Taxonomy [top]
| Kingdom | Phylum | Class | Order | Family |
|---|---|---|---|---|
| ANIMALIA | CHORDATA | CHONDRICHTHYES | RAJIFORMES | RAJIDAE |
| Scientific Name: | Dipturus lanceorostratus | |||
| Species Authority: | (Wallace, 1967) | |||
Common Name/s:
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| Synonym/s: |
Raja lanceorostrata Wallace, 1967
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Assessment Information [top]
| Red List Category & Criteria: | Data Deficient ver 3.1 |
| Year Published: | 2004 |
| Assessor/s: | Smale, M.J. (SSG Subequatorial Africa Regional Workshop, September 2003) |
| Reviewer/s: | Cavanagh, R.D., Kyne, P.M. & Fowler, S.L. (Shark Red List Authority) |
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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. |
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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
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| FAO Marine Fishing Areas: |
Native:
Indian Ocean – western
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| Range Map: | Click here to open the map viewer and explore range. |
Population [top]
| Population: | Apparently very rare. |
| Population Trend: |
Unknown
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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. |
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. |
Bibliography [top]
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Compagno, L.J.V., Ebert, D.A. and Smale, M.J. 1989. Guide to the sharks and rays of Southern Africa. Struik, Cape Town. 160 pp. Hulley, P.A. 1988. Family No. 25 Rajidae. In: Smiths? Sea Fishes 1st edition. Southern Book Publishers, Johannesburg. IUCN. 2004. 2004 IUCN Red List of Threatened Species. www.iucnredlist.org. Downloaded on 23 November 2004. IUCN SSC Shark Specialist Group. Specialist Group website. Available at: http://www.iucnssg.org/. Wallace, J.H. 1967. The batoid fishes of the east coast of southern Africa. Part III: Skates and elecric rays. Oceanographc Research Institute Investatory Report No. 17. 62 pp. |
| Citation: | Smale, M.J. 2004. Dipturus lanceorostratus. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. <www.iucnredlist.org>. Downloaded on 25 May 2012. |
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