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Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Sarotherodon: Greek, saros, -ou = sawdust + Greek, ther = animal * Greek, odous = teeth (Ref. 45335).
More on author: Guichenot.
Environment: milieu / climate zone / djupintervall / distribution range
Ekologi
; sötvatten; brackvatten bottenlevande. Tropical; 3°N - 7°S
Africa: coastal zone of Gabon and Equatorial Guinea (Sarotherodon nigripinnis nigripinnis) and the lower Kouilou in Republic of Congo to the lower Congo River estuary in Democratic Republic of Congo (Sarotherodon nigripinnis dolloi).
Size / Vikt / Age
Könsmognad: Lm ? range ? - ? cm
Max length : 18.0 cm SL hane/ej könsbestämd; (Ref. 2)
Taggstrålar i ryggfenan (totalt) : 14 - 17; Mjukstrålar i ryggfenan (totalt) : 9 - 12; Taggstrålar i analfenan: 3; Mjukstrålar i analfenan: 8 - 9. Diagnosis: 12-17 rakers on lower limb of first arch; 27-30 scales in lateral line; generally with black spots and blotches on head and body (Ref. 81260).
Body shape (shape guide): short and / or deep.
Estuarine species, preferring brackish water but found in freshwater during low tide (Ref. 68431). Male mouthbrooder (Ref. 41581). No marked sexual dichromatism when sexually active; forms temporary pair-bonds during reproduction (Ref. 81260).
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
Males carry eggs (Ref. 41581). Males of Sarotherodon nigripinnis dolloi construct nest and incubate eggs (Ref. 55074). Incubatory period lasts about 14 days; female retrieves newly released young in mouth (Ref. 72506). Juveniles become independant after about 4 weeks (Ref. 55074).
Falk, T.M., G.G. Teugels and E.K. Abban, 2003. Revision and biogeographical analysis of the black-chinned tilapia Sarotherodon melanotheron (Teleostei, Cichlidae): results of morphometric, allozyme, globin chain and mtDNA studies. J. Nat. Hist. 37(18):2191-2212. (Ref. 72448)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Verktyg
Special reports
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01862 (0.00830 - 0.04177), b=3.01 (2.82 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 2.2 ±0.1 se; based on size and trophs of closest relatives
Resiliens (Ref.
120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (12 of 100).
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