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

OAI: https://revistas.ucr.ac.cr/index.php/rbt/oai
Composición, crecimiento e índice de condición de una población de <i>Poecilia reticulata</i> (Pisces: Poeciliidae), en un estanque en Heredia, Costa Rica
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Keywords

poecilia reticulata
length
weight
condition index
poeciliidae
Costa Rica.

How to Cite

Urriola Hernández, M., Cabrera Peña, J., & Protti Quesada, M. (2004). Composición, crecimiento e índice de condición de una población de <i>Poecilia reticulata</i> (Pisces: Poeciliidae), en un estanque en Heredia, Costa Rica. Revista De Biología Tropical, 52(1), 157–162. Retrieved from https://revistas.ucr.ac.cr/index.php/rbt/article/view/14818

Abstract

A pond population of Poecilia reticulata was studied in Santo Domingo, Heredia, Costa Rica, between September and November of 1998. The sex ratio was 1:0.49 (males:females). The mean total length was 34.43 ± 7.26 mm for females, 23.50 ± 2.24 mm for males and 12.27 ± 3.41 mm for juveniles. The mean total weight was 0.69 ± 0.48 g for females; and 0.16 ± 0.05 g for males and 0.026 ± 0.027 g for juveniles. The total length-weight relationship for the total population was P= 6 x 10 -5 Lt 3.3272 (r 2 = 0.9613). The condition index equation was K = 25.755 e 0.004Lt (r 2 = 0.8925) for females and K=26.767 e 0.003Lt (r 2 =0.907) for males. The mean condition index was 31.29 ±0.55 % for females and 28.52 ± 0.19 % for males. Both sexes reached the sex- ual maturity when the males and females overcame the 20.00 mm and 23.5 mm of Lt respectively.
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