Reproductive aspects of Oreochromis niloticus (Perciformes: Cichlidae) at Coatetelco Lake, Morelos, Mexico
Rev. biol. trop
;
51(1): 221-228, mar. 2003. tab, graf
Article
in English
| LILACS
| ID: lil-365963
ABSTRACT
Sex ratio, size at maturity, maturity stages, fecundity and egg diameter of Oreochromis niloticus from Coatetelco Lake, Morelos State, Mexico, were studied from January to December 1993. Sex ratio (male:female) was approximately 1:1.02. Length at maturity was 117 mm (males) and 120 mm (females). The fecundity ranged between 104 and 709 eggs, with egg diameter from 1,000 to 3,000 microns. The gonadosomatic and hepatosomatic index indicate that the species breeds during summer and winter.
Full text:
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Index:
LILACS (Americas)
Main subject:
Sexual Maturation
/
Cichlids
Limits:
Animals
Country/Region as subject:
Mexico
Language:
English
Journal:
Rev. biol. trop
Journal subject:
Biology
/
Tropical Medicine
Year:
2003
Type:
Article
Affiliation country:
Mexico
Institution/Affiliation country:
UNAM/MX
/
Universidad de Guadalajara/MX
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