Reproductive aspects of Oreochromis niloticus (Perciformes: Cichlidae) at Coatetelco Lake, Morelos, Mexico
Rev. biol. trop
;
51(1): 221-228, mar. 2003. tab, graf
Article
Dans Anglais
| 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 (malefemale) was approximately 11.02. 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.
Texte intégral:
Disponible
Indice:
LILAS (Amériques)
Sujet Principal:
Maturation sexuelle
/
Cichlides
Limites du sujet:
Animaux
Pays comme sujet:
Mexico
langue:
Anglais
Texte intégral:
Rev. biol. trop
Thème du journal:
Biologie
/
Médecine tropicale
Année:
2003
Type:
Article
Pays d'affiliation:
Mexique
Institution/Pays d'affiliation:
UNAM/MX
/
Universidad de Guadalajara/MX
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