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Alcolapia alcalicus in Kenya
Natron tilapia

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Alcolapia alcalicus   (Hilgendorf, 1905)
Family:	Cichlidae (Cichlids) , subfamily: Pseudocrenilabrinae			picture (Oralc_m2.jpg) by Seegers, L.
Order:	Perciformes  (perch-likes)
Class:	Actinopterygii (ray-finned fishes)
FishBase name:	Natron tilapia
Max. size:	11.6 cm TL (male/unsexed; Ref. 32272)
Environment:	benthopelagic
Climate:	tropical; 2°S - 3°S
Global Importance:	fisheries:
Resilience:	High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)
Distribution:	Africa: Tanzania and Kenya (Lake Natron; introduced in Lake Nakuru).
Diagnosis:	Dorsal spines (total): 9-14; Dorsal soft rays (total): 11-15; Anal spines: 3-3; Anal soft rays: 9-11; Vertebrae: 27-30. Mature females with an overall golden hue; males with the flanks a pale blue and the lateral parts of the lower lip swollen and brilliant. In full color the blue spots on the scales become iridescent. The genital papilla is conical, prominent and yellow in the mature male, less prominent, but swollen in the mature female. Scale rows on cheeks 3-4. Preorbital bone with only 4 pores and no scales. (Ref.4967)
Biology:	Occur at a temperature range of 30-32°C (Ref. 2). Feed actively in the early morning; mainly on algae as well as copepods and dipterous larvae (Ref. 2). Females mouthbrood the eggs (Ref. 2)
Threatened:	Endangered, see IUCN Red List  (B1ab(i,ii,iii)+2ab(i,ii,iii)) , (Ref. 36508)
Dangerous:	harmless
Coordinator:	Kullander, Sven O.
Main Ref:	Seegers, L. and H. Tichy. 1999. (Ref. 32272)
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Kenya country information
Common names:	Lake Natron tilapia, Natron tilapia		Ref:  Seegers, L., L. De Vos and D.O. Okeyo, 2003
Status:	native		Ref:  Okeyo, D.O., 2003
Salinity:	freshwater
Uses:	no uses
Comments:	Known from Lake Natron drainage (Ref. 52331, 52871) and Shombole swamps (Ref. 52331, 52871).
Country Information:	www.cia.gov/cia/publications/factbook/geos/ke.html
National  Fisheries  Authority:	www.recoscix.org/openscrn.htm
Occurrences:	Occurrences    Point map
Main Ref:	Seegers, L., L. De Vos and D.O. Okeyo, 2003
Update

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 | Scirus | Tree of Life | Zoological Record
	Note: use the Back button of your browser to return to FishBase.
	Modified:  Boden, Gert	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