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Brycinus brevis : fisheries
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Brycinus brevis
Picture by
Hippocampus-Bildarchiv
Teleostei (teleosts) >
Characiformes
(Characins) >
Alestidae
(African tetras)
Etymology:
Brycinus:
Greek, ebrykon, brykomai = to bite, to gnaw (Ref.
45335
)
.
More on author:
Boulenger
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; demersal; pH range: 6.8 - 7.8. Tropical; 23°C - 27°C (Ref.
12468
)
Africa: Southern Ghana and southern Nigeria (Lagos and Bénoué basin) (Ref.
2880
,
81279
). Also recorded in Sanaga River basin, Cameroon (Ref.
52331
).
Size / Weight / Age
Maturity: L
m
 
?
  range ? - ? cm
Max length : 25.0 cm TL male/unsexed; (Ref.
31256
); max. published weight: 300.00 g (Ref.
3799
)
Anal
spines
: 0;
Anal
soft rays
: 16 - 18. Diagnosis: parietal fontanella absent in adults and porelinke in juveniles, disappearing with growth; snout long, comprised three times in head length; dorsal-fin origin distincly behind pelvic-fin insertions; head broad; adults large-sized; no sexual dimorphism affecting anal-fin shape in adult males; body depth less than three times in the standard length in adults; 8-12 teeth in outer premaxillary row; 4.5 scales above lateral line; 21-23 lateral line scales; 13-15 anal fin branched rays; 18-20 gill rakers on lower part of first branchial arch (Ref.
2880
,
81279
).
Affinities:
B. macrocephalus
Life cycle and mating behavior
Maturity
|
Reproduction
|
Spawning
|
Eggs
|
Fecundity
|
Larvae
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
)
IUCN Red List Status (Ref.
130435
)
Endangered (EN)
(B2ab(iii)); Date assessed:
12 August 2019
CITES
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
Fisheries: minor commercial
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Zoological Record
Estimates based on models
Phylogenetic diversity index (Ref.
82804
): PD
50
= 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
).
Trophic level (Ref.
69278
): 3.1 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref.
120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153
): Low vulnerability (15 of 100).
Price category (Ref.
80766
):
Unknown
.
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Page last modified by :
mrius-barile
- 20 July 2016
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