Bedotia tricolor 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Actinopterygii Atheriniformes Bedotiidae

Scientific Name: Bedotia tricolor Pellegrin, 1932
Taxonomic Notes: Eschmeyer (2004) lists this as valid following Sparks 2001 (the most recent study he includes). Sparks and Smith (in press) presents a phylogeny indicating that this is a distinct species.

Assessment Information [top]

Red List Category & Criteria: Critically Endangered B1ab(iii,v) ver 3.1
Year Published: 2016
Date Assessed: 2016-06-23
Assessor(s): Ravelomanana, T., Sparks, J.S. & Loiselle, P.V.
Reviewer(s): Raminosoa, N., Randrianizahaisa, H., Rasoloariniaina, R & Velosoa, J.
Contributor(s): Participants of the CBSG/ANGAP CAMP "Faune de Madagascar" workshop, Mantasoa, Madagascar 2001
Facilitator/Compiler(s): Darwall, W.R.T.
This species has only been found in one tributary of the Faraony River, whose watershed has been almost entirely stripped of forest cover. This species must also cope with an exotic predator, the Spotted Snakehead. This species is assessed as Critically Endangered on account of its highly restricted distribution (extent of occurrence (EOO) of 16 km2), a single location, and continuing declines in the habitat and number of mature individuals due to pressures from deforestation, invasive species and fishing.
Previously published Red List assessments:

Geographic Range [top]

Range Description:Endemic to eastern Madagascar, Bedotia tricolor is described from specimens collected in the lower reach of Faraony at 40 m asl (Pellegrin 1932). It is also found near Ikongo (P. Loiselle pers. comm.).
Countries occurrence:
Additional data:
Estimated area of occupancy (AOO) - km2:16
Number of Locations:1
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:This species is very rare and so there is little known about it.
Current Population Trend:Unknown
Additional data:
Continuing decline of mature individuals:Yes
Population severely fragmented:Unknown

Habitat and Ecology [top]

Habitat and Ecology:Bedotiids typically live in small to medium sized forested rivers and, to a lesser extent, swamps and marshes along the eastern slope of Madagascar (Jones et al. 2010).
Continuing decline in area, extent and/or quality of habitat:Yes
Movement patterns:Not a Migrant

Use and Trade [top]

Use and Trade: There is no use or trade information available.

Threats [top]

Major Threat(s): The main threats are habitat loss and degradation through siltation caused by deforestation, and competition and predation by alien invasive species. According to Loiselle (pers. comm) this species was very abundant near Ikongo but after deforestation of the region it has become rare.

Conservation Actions [top]

Conservation Actions: Some subpopulations are expected to be inside of the protected area Fandriana Vondrozo corridor.

Citation: Ravelomanana, T., Sparks, J.S. & Loiselle, P.V. 2016. Bedotia tricolor. The IUCN Red List of Threatened Species 2016: e.T2722A58294130. . Downloaded on 19 September 2018.
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