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Alcolapia grahami in Kenya

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Alcolapia grahami   (Boulenger, 1912)
Family:	Cichlidae (Cichlids) , subfamily: Pseudocrenilabrinae			picture (Oralc_m3.jpg) by Seegers, L.
Order:	Perciformes  (perch-likes)
Class:	Actinopterygii (ray-finned fishes)
FishBase name:
Max. size:	20.0 cm SL (male/unsexed; Ref. 2)
Environment:	benthopelagic; pH range: 7.5 - 8.5; dH range: 10 - 20
Climate:	tropical; 24 - 32°C; 1°S - 2°S
Global Importance:	fisheries: ; aquarium: commercial
Resilience:	High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)
Distribution:	Africa: Lakes Magadi and Nakuru (introduced) in Kenya (Ref. 3881) and Lake Natron in Tanzania (Ref. 13364).
Diagnosis:	Dorsal spines (total): 11-13; Dorsal soft rays (total): 12-13; Anal spines: 3-3; Anal soft rays: 9-11; Vertebrae: 28. Mature females with an overall golden hue; males with the flanks a pale blue. Swollen and brilliant white lateral parts of the lower lip of the mature male. Blue spots on scales becoming iridescent. Genital papilla conical, prominent and yellow in the mature male; swollen in the mature female. An oblique eye-bar intensely black in the breeding male, duller in the female.
Biology:	Occur at temperatures ranging from 16.0-40.0 °C (Ref. 2). Feed actively in the evening. Young O. alcalicus grahami eat eggs as they are shed by the female, and much of the time and energy of the territorial male is occupied in driving them off. Feed on invertebrates, at the surface (Ref. 2)
Threatened:	Vulnerable, see IUCN Red List  (D2) , (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 Magadi 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 Magadi (Ref. 52331, 52871). It is introduced in Lake Nakuru in 1953, 1959 and 1962 (Ref. 13364, 52331, 52871), and also in Lake Elmenteita (Ref. 52331). Also Ref. 3881.
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
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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 | Scirus | Tree of Life | Zoological Record
	Note: use the Back button of your browser to return to FishBase.
	Modified:  Boden, Gert	Entered:  Binohlan, Crispina B.

	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