Astronesthes richardsoni

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

Conservation Actions

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Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
ANIMALIA	CHORDATA	ACTINOPTERYGII	STOMIIFORMES	STOMIIDAE

Scientific Name:

Astronesthes richardsoni

Species Authority:

(Poey, 1852)

Common Name/s:

English	–	Richardson's Snaggletooth
Spanish	–	Tachonado

Synonym/s:

Astronesthes filifer Regan & Trewavas, 1929

Astronesthes oculatus Regan & Trewavas, 1929

Chauliodus richardsoni Poey, 1852

Assessment Information [top]

Red List Category & Criteria:	Least Concern ver 3.1
Year Published:	2010
Assessor/s:	Collen, B., Richman, N. & Ram, M. (Sampled Red List Index Coordinating Team)
Reviewer/s:	Polidoro, B., Elfes, C. & Carpenter, K.E.
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: Astronesthes richardsoni has been assessed as Least Concern. This broad ranging species is not known to have any major threats. It is likely that the population is not undergoing significant population declines.

Geographic Range [top]

Range Description:	This species occurs from Mauritania to central Namibia. It has also been found in the western Atlantic by Georges Bank (Moore et al. 2003), the Gulf of Mexico, the Bahamas and across the Atlantic. One specimen is known from the southwest Atlantic (25°27'S, 35°56'W).
Countries:	Native: Angola (Angola); Bahamas; Benin; Cameroon; Canada; Cape Verde; Congo; Congo, The Democratic Republic of the; Côte d'Ivoire; Cuba; Equatorial Guinea; Gabon; Gambia; Ghana; Guinea; Guinea-Bissau; Liberia; Mauritania; Mexico; Namibia; Nigeria; Sao Tomé and Principe; Senegal; Sierra Leone; Togo
FAO Marine Fishing Areas:	Native: Atlantic – eastern central; Atlantic – southeast; Atlantic – southwest; Atlantic – western central
Range Map:	Click here to open the map viewer and explore range.

Population [top]

Population:	There is no known population information for Astronesthes richardsoni.
Population Trend:	Unknown

Habitat and Ecology [top]

Habitat and Ecology:	Astronesthes richardsoni is a mesopelagic species that is thought to occur at depths of up to 1,000m. It is thought that, like most species of this genus, it tends to live deeper than 500m during the day. Some, particularly smaller individuals, migrate up the water column to feed at night (Gibbs 1984). Its diet may consist of smaller fishes and crustaceans.
Systems:	Marine

Threats [top]

Major Threat(s):	There is no directed fishery for this species. Due to the deepwater and oceanic nature of this species it is unlikely to be impacted by coastal development and pollution from urban centres.

Major Threat(s):

There is no directed fishery for this species. Due to the deepwater and oceanic nature of this species it is unlikely to be impacted by coastal development and pollution from urban centres.

Conservation Actions [top]

Conservation Actions:	There are no species-specific conservation measures in place, or needed, for Astronesthes richardsoni.

Conservation Actions:

There are no species-specific conservation measures in place, or needed, for Astronesthes richardsoni.

Citation:	Collen, B., Richman, N. & Ram, M. (Sampled Red List Index Coordinating Team) 2010. Astronesthes richardsoni. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 23 May 2013.
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