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Brycinus nurse in Guinea-Bissau
Nurse tetra

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Brycinus nurse   (Rüppell, 1832)
Family:	Alestidae (African tetras)			picture (Brnur_u0.jpg) by Hippocampus-Bildarchiv
Order:	Characiformes  (characins)
Class:	Actinopterygii (ray-finned fishes)
FishBase name:	Nurse tetra
Max. size:	25.0 cm TL (male/unsexed; Ref. 3799); max. published weight: 200 g (Ref. 3799)
Environment:	pelagic; potamodromous; pH range: 6 - 7.80000019073486; dH range: 30
Climate:	tropical; 23 - 27°C
Global Importance:	fisheries: minor commercial; aquarium: commercial
Resilience:	High, minimum population doubling time less than 15 months (K=0.41-0.92; tm=1)
Distribution:	Africa: Nile, Chad, Niger and Bénoué, Cross, Ogun, Ouémé, Mono, Sio, Volta, Bia, Comoé, Agnébi, Bandama, Sassandra, Konkouré, Gambia, Tominé (Corubal), Senegal.
Diagnosis:	Anal spines: 3-3; 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.
Biology:	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)
Threatened:	Not Evaluated, see IUCN Red List  , (Ref. 36508)
Dangerous:	harmless
Coordinator:
Main Ref:	Paugy, D.. 1990. (Ref. 2880)
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Guinea-Bissau country information
Common names:	[ No common name ]		Ref:
Status:	native		Ref:
Salinity:	freshwater
Uses:	no uses
Country Information:	www.cia.gov/cia/publications/factbook/geos/pu.html
Occurrences:	Occurrences    Point map
Main Ref:	Paugy, D., 1990
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More information:	Countries FAO areas Occurrences Introductions Ecosystem Ecology Diet Food items Food consumption Ration Predators Ciguatera Fish loss Common names Synonyms Pictures Sounds Reproduction Maturity Spawning Eggs Egg dev. Larvae Larval dynamics References Growth L-W relationship L-L relationship Length frequencies Recruitment Max. age & size Metabolism Morphology Morphometrics Gill area Brains Vision Collaborators Genetics Allele frequencies Heritability Strains Aquaculture Aquaculture profile Diseases Ecotoxicology Processing Speed Swim. type Stamps
	Note: No data are available if label is black .
Tools:	Biogeographic modelling | Bio-Quiz | E-book | Field guide | Identification keys | Length-frequency Wizard | Life-history tool | Point map |
Internet sources:	BiOSC Point Data | CISTI | Google | GOBASE | GenBank ( genome, nucleotide ) | PubMed | Recipes | Scirus | Tree of Life | Zoological Record
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	Entered:  Sa-a, Pascualita

	Ref.:				Glossary
		(e.g. 9948)				(e.g. cephalopods)
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Page created by: Eli, 20.10.03, last modified by Eli, 26.06.07