Nannocharax occidentalis Daget, 1959

Catalog of Fishes (gen., sp.) | ITIS | CoL

Classification	Actinopterygii \| Characiformes \| Distichodontidae
Synonyms	Nannocharax niloticus occidentalis, ... more
Common names	Marmorinuoliaistetra, 西域矮脂鲤, 西域矮脂鯉, ... more

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Main reference

Gosse, J.-P. and E.J. Coenen. 1990. (Ref. 2936)
Other references | Biblio | Coordinator | Collaborators

Size / Weight / Age

Max length : 5.8 cm SL male/unsexed; (Ref. 2936)

Environment

Pelagic; potamodromous (Ref. 51243); freshwater; pH range: 6.2 - 7.2; dH range: 6 - 18

Climate / Range

Tropical; 22°C - 27°C (Ref. 12468)

Africa: Upper and middle Niger and Chari-Logone.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal soft rays (total): 13 - 14; Anal soft rays: 9 - 10. Short body. Round snout. Eyes dorsolateral, interorbital space small 11.4-16.1% head length. Head length 22.8-25.9% SL. 10-12.5 scales between posterior end of adipose and caudal fin base. 7-11 transverse bands on back. 4-7 individual blotches along lateral line. 7-8 scales between anus and anal fin origin. Fins not colored. Small dark blotch on anterior upper part of dorsal fin. Often dark blotch on base of each caudal fin lobe (Ref. 2936). Population in Niger Delta with reduced number of scales on lateral line (45-47) .


IUCN Red List Status (Ref. 57073)	Threat to humans
Not Evaluated	Harmless

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More information
Countries FAO areas Ecosystems Occurrences Introductions Ecology Diet Food items Food consumption Ration	Common names Synonyms Metabolism Predators Ecotoxicology Reproduction Maturity Spawning Eggs Egg development	Age/Size Growth Length-weight Length-length Length-frequencies Morphometrics Morphology Larvae Larval dynamics Recruitment	Other references Biblio Aquaculture Aquaculture profile Strains Genetics Allele frequencies Heritability Diseases Processing	Collaborators Pictures Stamps Sounds Ciguatera Speed Swim. type Gill area Otoliths Brains Vision

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Internet sources

Estimation of some characteristics with mathematical models

Resilience (Ref. 69278)

High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
Low vulnerability (10 of 100)	Not marketed/unknown

Entered by Cruz, Tess

Modified by Bailly, Nicolas

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Page last modified by : elaxamana, 15 July 2009

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