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Brycinus derhami Géry & Mahnert, 1977

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drawing shows typical species in Alestidae.


Ivory Coast (Côte d'Ivoire) country information

Common names: [No common name]
Occurrence: endemic
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Found in Néro, Dodo (Ref. 2880, 42019, 81279, 106643) and Tabou (Ref. 2880, 42019, 81279) River basins. Maps in Ref. 2880 and Ref. 81279 also seem to indicate presence in Cavally River basin. Also Ref. 272, 5331.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/iv.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Paugy, D., 2003
National Database:

Common names from other countries

Classificação / Names Nomes comuns | Sinônimos | Catalog of Fishes(Gênero, Espécies) | ITIS | CoL | WoRMS | Cloffa

> Characiformes (Characins) > Alestidae (African tetras)
Etymology: Brycinus: Greek, ebrykon, brykomai = to bite, to gnaw (Ref. 45335).
  More on authors: Géry & Mahnert.

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

; Água doce pelágico(a,os,as).   Tropical

Distribuição Países | Áreas da FAO | Ecossistemas | Ocorrências | Point map | Introduções | Faunafri

Africa: southwestern Côte d'Ivoire: basins of Néro, Dodo and Tabou (Ref. 81279).

Tamanho / Peso / Idade

Maturity: Lm ?  range ? - ? cm
Max length : 8.2 cm SL macho/indeterminado; (Ref. 2880)

Descrição suscinta Chaves de identificação | Morfologia | Morfometria

Espinhos anais: 0; Raios anais : 22 - 24. Diagnosis: parietal fontanella always present, even in adults; precaudal spot ovoid, anteriorly pointed and not extending unto caudal-fin rays; 5.5 scales between lateral line and dorsal fin; 26-30 lateral line scales; 19-21 anal fin branched rays; 6/8 premaxillary teeth; 12-15 gill rakers on lower limb of first gill arch (Ref. 2880, 81279).

Biologia     Glossário (p.ex. epibenthic)

Ciclo de vida ou comportamento de acasalamento Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas

Referência principal Upload your references | Referências | Coordenador | Colaboradores

Paugy, D., 1990. Characidae. p. 195-236. In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux douces et saumâtres de l'Afrique de l'Ouest. Tome I. Coll. Faune Tropicale n° XXVIII. Musée Royal de l'Afrique Centrale, Tervuren et O.R.S.T.O.M., Paris, 384 p. (Ref. 2880)

Status na Lista Vermelha da UICN (Ref. 130435)

  Em perigo (EN) (B2ab(iii)); Date assessed: 06 May 2019

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para os humanos

  Harmless




Uso pelos humanos

FAO(Publication : search) | FishSource |

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Estimates based on models

Índice de diversidade filogenética (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01230 (0.00541 - 0.02797), b=2.99 (2.81 - 3.17), in cm Total Length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Nível Trófico (Ref. 69278):  3.1   ±0.4 se; based on size and trophs of closest relatives
Resiliência (Ref. 120179):  Elevada, tempo mínimo de duplicação da população menor que 15 meses (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).