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Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Cichlidae (Cichlids) > Cichlasomatinae
Etymology: Mesonauta: Name not explained by Günther; probably from the Greek 'mesos' meaning middle or average, and 'nautes' for sailo (alternatively from Latin 'nauta' or sailor; the name perhaps refers to he position of dorsal fin origin posterior to the pelvic fin which was the author's principal diagnostic character.; festivus: Name from Latin adjective meaning merry, handsome (Ref. 86444).

Environment / Climate / Range Ecology

Freshwater; benthopelagic; pH range: 6.0 - 8.0; dH range: 4 - 6; non-migratory. Tropical; 25°C - 34°C (Ref. 40602)

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 8.2 cm SL male/unsexed; (Ref. 36377)

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

South America: Paraná River basin, in the Paraguay River drainage in Brazil and Paraguay; Amazon River basin, in the Guaporé (Brazil and Bolivia), Madre de Dios (Peru), Mamoré (Bolivia), Jamari and Tapajós (Brazil) River drainages.

Reported to reach around 10 cm SL (Ref. 81048). Tapajos (NRM) specimens were taken from a sandy shore at Aveiro and a small creek at Santarem, close to vegetation and with mud and sand bottom; Vila Bela da Santfssima Trinidade (NRM) specimens were seined in the shadow of the ferry, in shallow water with much aquatic vegetation; while from Madre de Dios, one sample was seined from a pool in a stream with clear, slightly tinted water and no vegetation; another, mixed sample came from a small stream and nearby cattle pool (Ref. 86444).

Main reference Upload your references | References | Coordinator : Kullander, Sven O. | Collaborators

Kullander, S.O., 2003. Cichlidae (Cichlids). p. 605-654. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil.

IUCN Red List Status (Ref. 90363)

Not Evaluated

Threat to humans

Harmless

Human uses

Aquarium: highly commercial

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Estimates of some properties based on empirical models

Phylogenetic diversity index (Ref. 82805): PD₅₀ = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01235 (-0.16179 - 0.18649), b=3.00377 (2.90675 - 3.10079), based on LWR estimates for this family-BS (Ref. 93245).

Trophic Level (Ref. 69278): 2.5 ±0.23 se; Based on food items.

Resilience (Ref. 69278): High, minimum population doubling time less than 15 months (tm<1).

Vulnerability (Ref. 59153): Low vulnerability (12 of 100) .

Price category (Ref. 80766): Unknown.

Mesonauta festivus (Heckel, 1840)