Revista de Biología Tropical ISSN Impreso: 0034-7744 ISSN electrónico: 2215-2075

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Age and growth of <i>Oreochromis niloticus</i> (Perciformes: Cichlidae) in Mexico
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Keywords

oreochromis niloticus
age
growth
length-frequency
scales
Mexico

How to Cite

Gómez-Márquez, J. L. (1998). Age and growth of <i>Oreochromis niloticus</i> (Perciformes: Cichlidae) in Mexico. Revista De Biología Tropical, 46(4), 929–936. https://doi.org/10.15517/rbt.v46i4.20569

Abstract

Age and growth of Oreochromis niloticus from Lagoon of Coatetelco, Morelos State, Mexico were studied from January through December, 1993. Scales of 318 specimens were collected. Modal length at capture was 10. 5 -11. 5 cm standard length. Scales rings were forrned during December. Back-calculated lengths-at-age showed no significant differences by sexo Four check marks were recorded. According to the growth curve parameters for population, the fish grow at a low rate (k=O.07) until they achieve a size (Loo) of 2 9. 19 cm. Length-frequency analysis (Bhattacharya's Gaussian component deterrnination procedure) do not differ significantly (t-student, p<0.05), from the scale reading
https://doi.org/10.15517/rbt.v46i4.20569
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