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Nessorhamphus danae

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Taxonomy [top]

Kingdom Phylum Class Order Family
ANIMALIA CHORDATA ACTINOPTERYGII ANGUILLIFORMES DERICHTHYIDAE

Scientific Name: Nessorhamphus danae
Species Authority: Schmidt, 1931

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2010
Date Assessed: 2009-02-04
Assessor(s): Smith, D. & Clarke, T.A.
Reviewer(s): Collen, B., Richman, N., Beresford, A., Chenery, A. & Ram, M.
Contributor(s): De Silva, R., Milligan, H., Lutz, M., Batchelor, A., Jopling, B., Kemp, K., Lewis, S., Lintott, P., Sears, J., Wilson, P., Smith, J. & Livingston, F.
Justification:
Nessorhamphus danae has been assessed as Least Concern.  Due to the deep-water nature of this wide-ranging species, it is unlikely to be impacted by any major threat processes.  However, further research on the ecology of this species is needed so that any potential threat processes can be identified.

Geographic Range [top]

Range Description: Nessorhamphus danae is found in tropical waters in the western Pacific, Indian, and Atlantic Oceans.
Countries:
Native:
Australia; Bangladesh; Benin; Brazil; Cambodia; Cameroon; China; Côte d'Ivoire; Ghana; Guinea; Guinea-Bissau; India; Indonesia; Kenya; Liberia; Malaysia; Mauritania; Mozambique; Myanmar; Nigeria; Pakistan; Papua New Guinea; Philippines; Senegal; Sierra Leone; Somalia; South Africa; Sri Lanka; Tanzania, United Republic of; Thailand; Togo; United States (Hawaiian Is.); Viet Nam; Yemen
FAO Marine Fishing Areas:
Native:
Atlantic – eastern central; Atlantic – southeast; Atlantic – southwest; Indian Ocean – eastern; Indian Ocean – western; Pacific – western central
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: It is likely that Nessorhamphus danae occurs at very low densities of around 1 individual per 1,000–10,000m3(T. Clarke pers. comm. 2008).  This species is only known from a relatively small number of occurrences.
Population Trend: Unknown

Habitat and Ecology [top]

Habitat and Ecology: Nessorhamphus danae is a bathypelagic species and has been found in both oceanic areas and on the continental shelf.  The Derichthyidae family inhabits waters several hundred metres deep and specimens are rarely seen.
Systems: Marine

Threats [top]

Major Threat(s): Due to the deep-water nature of this species, it is unlikely that Nessorhamphus danae is being impacted by any major threat processes.  There is no known commercial fishery for this species.

Conservation Actions [top]

Conservation Actions: There are no species-specific conservation measures in place for Nessorhamphus danae.

Further research is needed on the ecology of this species, in order to better understand any potential threats it may face.

Citation: Smith, D. & Clarke, T.A. 2010. Nessorhamphus danae. The IUCN Red List of Threatened Species. Version 2014.2. <www.iucnredlist.org>. Downloaded on 01 August 2014.
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