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Teleostei (teleosts) > Gobiiformes (Gobies) > Eleotridae (Bully sleepers)
Etymology: Ratsirakia: Perhaps it is an extinct fish today; following "Aquatic Survival", vol 4, 3, september 95.
Eponymy: Didier Ignace Ratsiraka (1936–2021) was President of Madagascar (1975–1993 & 1997– 2002). Jean Legendre was a physician with the French Colonial Troops in Madagascar (1922– 1924). He observed this sleeper and provided ‘interesting details’ (translation) of its biology to the author. (Ref. 128868), visit book page.
More on author: Pellegrin.

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

Freshwater; demersal. Tropical

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

Africa: endemic to Madagascar.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 17.0 cm TL male/unsexed; (Ref. 6802)

Occurs strictly in freshwaters of highlands and oriental versant (Ref. 6802).

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

Main reference Upload your references | References | Coordinator | Collaborators

Maugé, L.A., 1986. Eleotridae. p. 389-398. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ISNB, Brussels; MARC, Tervuren; and ORSTOM, Paris. Vol. 2. (Ref. 6802)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Data deficient (DD) ; Date assessed: 30 June 2016

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Trophic ecology
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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01072 (0.00393 - 0.02918), b=3.12 (2.90 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.4 ±0.5 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).

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

Ratsirakia legendrei (Pellegrin, 1919)