Eleotris melanosoma

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	PERCIFORMES	ELEOTRIDAE

Scientific Name:

Eleotris melanosoma

Species Authority:

Bleeker, 1852

Common Name/s:

English

–

Black Spinecheek Gudgeon, Broadhead Sleeper

Synonym/s:

Culius macrocephalus Bleeker, 1857

Eleotris macrocephala Bleeker, 1857

Taxonomic Notes:

Eleotris melanosoma has been confused with Eleotris fusca; hence Pusey et al. (2004) combined their natural history account of both. Research on the taxonomy of E. fusca is currently underway (P. Keith pers comm. 2011).

Assessment Information [top]

Red List Category & Criteria:

Least Concern ver 3.1

Year Published:

2012

Assessor/s:

Larson, H. & Ng, H.H.

Reviewer/s:

Ram, M., Beresford, A., Collen, B., Richman, N. & Chenery, A.

Contributor/s:

Livingston, F., Wilson, P., Lintott, P., Kemp, K., Batchelor, A., Milligan, HT, Keith, P., Hoese, D., De Silva, R., Lutz, M.L., Jopling, B., Lewis, S., Sears, J. & Smith, J.

Justification:
This is a very widespread, abundant species with no known or projected threats. The global population of this species is not expected to undergo any significant decline in the near future, and it is assessed as Least Concern.

History:

2010

–

Least Concern

Geographic Range [top]

Range Description:	The species is known from Asia and Oceania: from the east African coast, and from the Society Islands to north of Japan. This species has been introduced into the Panama Canal Zone (Koumans 1953).
Countries:	Native: American Samoa (American Samoa); Australia (Queensland); China; Fiji; French Polynesia; Hong Kong; Indonesia; Japan; Kenya; Korea, Democratic People's Republic of; Korea, Republic of; Madagascar; Maldives; Mozambique; New Caledonia; Northern Mariana Islands; Palau; Papua New Guinea; Philippines; Samoa; Seychelles; Singapore; South Africa; Taiwan, Province of China; Tanzania, United Republic of; Thailand; Tonga; Vanuatu
FAO Marine Fishing Areas:	Native: Indian Ocean – western; Pacific – eastern central; Pacific – northwest; Pacific – western central
Range Map:	Click here to open the map viewer and explore range.

Population [top]

Population:	There is no information on population trends available for this species. However, given its very wide distribution and the absence of any significant threats, the global population can be considered stable.
Population Trend:	Stable

Habitat and Ecology [top]

Habitat and Ecology:	This is a demersal, amphidromous species that can usually be found on mud, sand or gravel substrates. Adults inhabit brackish estuaries and medium to large size rivers. Individuals (like most in the genus) require concealment among leaf litter, woody debris and submerged bank vegetation of freshwater streams. The species has been well-studied in Okinawa, Japan (Maeda and Tachihara 2005, Maeda et al. 2007), where this species spawns during May to December, but their pelagic larval duration is not known. The larvae settle out within estuarine waters (tidally influenced).
Systems:	Freshwater; Marine

Habitat and Ecology:

This is a demersal, amphidromous species that can usually be found on mud, sand or gravel substrates. Adults inhabit brackish estuaries and medium to large size rivers. Individuals (like most in the genus) require concealment among leaf litter, woody debris and submerged bank vegetation of freshwater streams.

The species has been well-studied in Okinawa, Japan (Maeda and Tachihara 2005, Maeda et al. 2007), where this species spawns during May to December, but their pelagic larval duration is not known. The larvae settle out within estuarine waters (tidally influenced).

Systems:

Freshwater; Marine

Threats [top]

Major Threat(s):	There are no known major threats for this species. It is known from estuarine and riverine habitats where it may suffer localised declines due to water pollution and fishing activity.

Major Threat(s):

There are no known major threats for this species. It is known from estuarine and riverine habitats where it may suffer localised declines due to water pollution and fishing activity.

Conservation Actions [top]

Conservation Actions:	Although this is a common, very widespread species, more information about its population size and trends, biology and potential threats (even if localized) facing this species is required. No species-specific conservation measures are in place or needed at present. It occurs within several protected areas within its range.

Conservation Actions:

Although this is a common, very widespread species, more information about its population size and trends, biology and potential threats (even if localized) facing this species is required. No species-specific conservation measures are in place or needed at present. It occurs within several protected areas within its range.

Citation:	Larson, H. & Ng, H.H. 2012. Eleotris melanosoma. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 19 June 2013.
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