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Nannocharax lineomaculatus
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Actinopteri (ray-finned fishes) >
Characiformes
(Characins) >
Distichodontidae
(Distichodus)
Etymology:
Nannocharax:
Latin, nannus = small + Greek, charax = a marine fish without identification (Ref.
45335
)
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; pelagic. Tropical
Africa: upper courses of Niger River and Chari-Logone basin (Ref.
2936
,
86396
).
Size / Weight / Age
Maturity: L
m
 
?
  range ? - ? cm
Max length : 3.9 cm SL male/unsexed; (Ref.
2936
)
Short description
Morphology
|
Morphometrics
Diagnosis: size small, body elongate; head length 4-7.6x SL; scale formula 3.5-4.5/46-50/-; 9-11.5 scales between posterior end of adipose and caudal fin base; 12-13 scales around caudal peduncle; 4 or 5 scales between anus and anal-fin origin; pectoral fins usually extending beyond pelvic-fin bases; pelvic fins not extending beyond anus; dorsal-fin origin behind level of pelvic-fin insertions; 9-10 anal fin branched rays; 11-12 dorsal fin branched rays; 12-13 pectoral fin branched rays; 8 pelvic fin branched rays; colour pattern different from other
Nannocharax
species; 3-4 cross-bars present on back; 3-5 spots along lateral line, connected or not by a dark, narrow, mid-lateral band (Ref.
2936
,
86396
).
Life cycle and mating behavior
Maturity
|
Reproduction
|
Spawning
|
Eggs
|
Fecundity
|
Larvae
Gosse, J.-P. and E.J. Coenen
, 1990. Distichodontidae. p. 237-260. 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 and O.R.S.T.O.M., Paris, 384 p. (Ref.
2936
)
IUCN Red List Status (Ref.
125652
)
Least Concern (LC)
; Date assessed:
06 May 2019
CITES
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
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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=0.00380 (0.00147 - 0.00985), b=3.11 (2.88 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245
).
Trophic level (Ref.
69278
): 3.1 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153
): Low vulnerability (10 of 100).
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Laguna, Philippines
Page last modified by :
mrius-barile
- 20 July 2016
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