Pachypanchax sparksorum 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Actinopterygii Cyprinodontiformes Aplocheilidae

Scientific Name: Pachypanchax sparksorum Loiselle, 2006
Pachypanchax sp. nov. 'Anjingo'
Taxonomic Source(s): Eschmeyer, W.N., Fricke, R. and Van der Laan, R. (eds). 2016. Catalog of Fishes: genera, species, references. Updated 2 May 2016. Available at: (Accessed: 2 May 2016).
Taxonomic Notes: This species appeared on the IUCN Red List as Pachypanchax sp. nov. 'Anjingo' until 2016. This species was formally described as Pachypanchax sparksorum in Loiselle (2006). An updated Red List assessment has been created to reflect this change.

Assessment Information [top]

Red List Category & Criteria: Endangered B1ab(i,ii,iii,v) ver 3.1
Year Published: 2016
Date Assessed: 2016-06-17
Assessor(s): Ravelomanana, T. & Sparks, J.S.
Reviewer(s): Raminosoa, N., Randrianizahaisa, H., Rasoloariniaina, R & Velosoa, J.
Contributor(s): Loiselle, P.V.
Facilitator/Compiler(s): Darwall, W.R.T.
This species is reported from the Anjingo river basin in northwest Madagascar. This species has a restricted range (extent of occurrence (EOO) of 610 km2), and is found at a only two locations within the Anjingo river basin. Habitat loss due to deforestation of the catchment is causing an ongoing decline in extent of occurrence, area of occupancy and in the number of mature individuals. This species is assessed as Endangered.
Previously published Red List assessments:

Geographic Range [top]

Range Description:

This species is endemic to Madagascar and has only been collected from streams flowing into the Ankofia River and from its principal tributary, the Anjingo (Loiselle 2006). 

Countries occurrence:
Additional data:
Continuing decline in area of occupancy (AOO):Yes
Estimated extent of occurrence (EOO) - km2:610
Continuing decline in extent of occurrence (EOO):Yes
Number of Locations:2
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:This species is still abundant and largely distributed along many small affluents of the mid and high streams of Ankofia and Anjingo rivers.
Current Population Trend:Decreasing
Additional data:
Continuing decline of mature individuals:Yes

Habitat and Ecology [top]

Habitat and Ecology:This species inhabits both the main channel of the Anjingo and Ankofia rivers and their small tributary streams flowing through more or less degraded deciduous forest (Loiselle 2006). It is found in a very shallow stream flowing under mango tree; it is even found in rice field canal (Ravelomanana, unpublished data). During the dry season, these streams are shallow, with a moderate current. Their water is clear, with a pH of 6.8–7.0, soft (total hardness 34.2–40.0 ppm), and deficient in dissolved substances (electrical conductivity 28–31 μS/cm²). Stream bottoms are bedrock interspersed with cobble and patches of sand/gravel (Loiselle 2006)
Continuing decline in area, extent and/or quality of habitat:Yes
Movement patterns:Not a Migrant

Use and Trade [top]

Use and Trade: In general, it is the women or young people who fish Pachypanchax sparksorum with "tandroho" a kind of basket or a seine made with mosquito net. This fishing activity is for local consumption.

Threats [top]

Major Threat(s): Pachypacnchax sparksorum is facing a lack of water following deforestation, especially of the Bora. Many previous permanent streams are now only temporary.

Conservation Actions [top]

Conservation Actions: No conservation actions are in place.

Citation: Ravelomanana, T. & Sparks, J.S. 2016. Pachypanchax sparksorum. The IUCN Red List of Threatened Species 2016: e.T44483A58307259. . Downloaded on 18 June 2018.
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