Madagascar country information

Common names: [No common name]
Occurrence: endemic
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Type-locality of the holotype of Pachypanchax patriciae: 'Ampandra River ca. 2 km upstream of village of the same name' (Ref. 57724). Known from the Mananjeba, Mahavavy du Nord, Ifasy, Manehoko and Ampandra river basins in northwestern Madagascar (Ref. 57724). Habitat loss caused by deforestation of the watersheds of the Mananjeba, Mahavavy du Nord and Ifasy rivers poses threats to the survival of the northern populations (Ref. 57724). Classified as vulnerable based on the criteria established by the World Conservation Union (Ref. 57724).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/ma.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Loiselle, P.V., 2006
National Database:

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Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Cyprinodontiformes (Rivulines, killifishes and live bearers) > Aplocheilidae (Killifishes)
Etymology: Pachypanchax: Greek, pachys = fat + Panchax, a word created by Meinken in 1932 word created by Meinken in 1932; patriciae: Named for Patricia Yazgi in recognition of her support in the documentation and conservation of the Malagasy freshwater ichthyofauna (Ref. 57724).

Environment: milieu / climate zone / depth range / distribution range Ecology

Freshwater; benthopelagic; pH range: 5.0 - 7.2. Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Africa: Mananjeba, Mahavavy du Nord, Ifasy, Manehoko and Ampandra river basins in Madagascar (Ref. 57724).

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 5.2 cm SL male/unsexed; (Ref. 57724)

Inhabits small rivers that are tannin stained, acidic, very soft and deficient of dissolved substances, with compacted clay/sand bottoms, overlain with organic detritus. Also found in large rivers with a markedly seasonal hydrological regime, substantial flood plains and water ranges from clear to turbid water, but are not tannin-stained, are less acidic, harder and carry a greater concentrations of dissolved minerals (Ref. 57724). Feeds on terrestrial and aquatic insects and preyed upon mostly by fish-eating birds and dragonfly nymphs (Ref. 57724).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator : Costa, Wilson J.E.M. | Collaborators

Loiselle, P.V., 2006. A review of the Malagasy Pachypanchax (Teleostei: Cyprinodontiformes, Aplocheilidae), with descriptions of four new species. Zootaxa 1366:1-44. (Ref. 57724)

IUCN Red List Status (Ref. 130435)

Endangered (EN) (B1ab(iii)); Date assessed: 16 June 2016

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO(Publication : search) | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5079 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.5 ±0.5 se; based on size and trophs of closest relatives

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Pachypanchax patriciae Loiselle, 2006