Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Chondrichthyes Squaliformes Etmopteridae

Scientific Name: Etmopterus evansi
Species Authority: Last, Burgess & Séret, 2002
Common Name(s):
English Blackmouth Lanternshark

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2003
Date Assessed: 2003-04-30
Needs updating
Assessor(s): Kyne, P.M. & Cavanagh, R.D. (SSG Australia & Oceania Regional Workshop, March 2003)
Reviewer(s): Seret, B. & Fowler, S. (Shark Red List Authority)
A small deepwater lantern shark currently recorded from off northwestern Western Australia and the Arafura Sea (Indonesia) on the continental slope. Although the species is known only from a few small localities and has a narrow bathymetrical range, further exploratory trawls may indicate a wider distribution. Deepwater trawl fisheries are expanding globally, including in Indonesian waters. These activities may place future pressure on this small species. At present Etmopterus evansi is unlikely to be captured frequently as most of the trawl activity is not within its known depth range, and if captured it is likely discarded due to its small size and low commercial value. However, survival rates from trawl discards are likely to be low. There is currently no evidence of a decline in range, habitat quality or number of mature individuals; although any expansion of fishing throughout its range, especially in Indonesian waters should be closely monitored.

Geographic Range [top]

Range Description: Recorded from localised records off northwestern Western Australia and from the Arafura Sea, Indonesia.
Countries occurrence:
Australia (Western Australia); Indonesia
FAO Marine Fishing Areas:
Indian Ocean – eastern
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: No available information on populations.
Current Population Trend: Unknown
Additional data:

Habitat and Ecology [top]

Habitat and Ecology: Recorded from the continental slope in 430 to 550 m. Maximum size at least 30 cm total length (TL). A male of 26.2 cm TL was mature. Nothing else known of its biology.
Systems: Marine

Threats [top]

Major Threat(s): Presently only minor fishing activity in area of occurrence off Western Australia (Commonwealth managed North West Slope Trawl Fishery). The Arafura Sea and Indonesian waters may be subject to some trawling effort by Indonesian vessels (although at present this is mostly in less than 200 m depth). Given the global expansion of deepwater trawl fisheries pressure may be placed upon this species in the future, especially if Indonesian fleets expand into deeper water. Survival rates when discarded from trawl catches will be low.

Conservation Actions [top]

Conservation Actions: There are currently no conservation measures in place for this species.

Citation: Kyne, P.M. & Cavanagh, R.D. (SSG Australia & Oceania Regional Workshop, March 2003). 2003. Etmopterus evansi. The IUCN Red List of Threatened Species 2003: e.T41807A10566122. . Downloaded on 04 October 2015.
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