Brycinus nurse (Rüppell, 1832)

Nurse tetra

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

Classification	Actinopterygii \| Characiformes \| Alestidae
Synonyms	Myletes nurse, Alestes nurse, Brachyalestes nurse, ... more
Common names	Silversides, Tatare, Messinkialesti, ... more

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Main reference

Paugy, D. 1990. (Ref. 2880)
Other references | Biblio | Coordinator | Collaborators

Size / Weight / Age

Max length : 25.0 cm TL male/unsexed; (Ref. 3799); max. published weight: 200 g (Ref. 3799)

Environment

Pelagic; potamodromous (Ref. 51243); freshwater; pH range: 6.0 - 7.8; dH range: ? - 30

Climate / Range

Tropical; 23°C - 27°C (Ref. 2060)

Africa: Nile, Chad, Niger and Bénoué, Cross, Ogun, Ouémé, Mono, Sio, Volta, Bia, Comoé, Agnébi, Bandama, Sassandra, Konkouré, Gambia, Tominé (Corubal), Senegal.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Anal spines: 3; Anal soft rays: 10 - 15. Parietal fontanelle absent in adults, ponctiform in juveniles. Jaws equal. Sexual dimorphism on anal form of male adults. Humeral and precaudal spots black. Back greenish, sides silvery and ventral part white. Paired fins bright red, pectorals and ventral not colored or light orange. Part above eye red.

Inhabits rivers, lakes, irrigation canals and fringing vegetation. Feeds on zooplankton, Caridina, insects, snails and vegetation (Ref. 28714). Dwarf populations are described in lake basins: Lake Turkana, B. n. nana Pellegrin, 1935 and Lake Chad, B. n. dageti Blache and Miton, 1960 (see Ref. 2880).


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

Human uses
Fisheries: minor commercial; aquarium: commercial


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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Summary page \| Point data \| Common names \| Photos

Internet sources

Estimation of some characteristics with mathematical models

Resilience (Ref. 69278)

High, minimum population doubling time less than 15 months (K=0.41-0.92; tm=1)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
Low vulnerability (16 of 100)	Not marketed/unknown

Entered by Cruz, Tess

Modified by Boden, Gert

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Page last modified by : elaxamana, 15 July 2009

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