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Uniciencia
Article . 1998
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Aspectos relevantes en la biología de Cetengraulis mysticetus (Günther) (Pisces: Engraulidae) en el Golfo de Nicoya, Costa Rica.

Authors: Rodríguez, Jorge Arturo; Ruiz Gómez, Kherson;

Aspectos relevantes en la biología de Cetengraulis mysticetus (Günther) (Pisces: Engraulidae) en el Golfo de Nicoya, Costa Rica.

Abstract

Cetengraulis mysticetus in an American anchovy found on the Pacific coast between Mexico and Peru. The fecundity and the biometry relations were studied in the Gulf of Nicoya population, Costa Rica. The length of first sexual maturity was estimated to be 12.6 cm. The sex ratio was 1:1.2 male to female in the maximum spawning period. The total fecundity changed from 48,498 oocytes to 98,278 oocytes according to the total length size. The relative fecundity was estimated in two length-size groups, the first group fish and the second group (19-21.9 cm length) with 1,145 oocytes per gram fish. The biometric study shows differences only in dorsal length with total length length size relation, females are isometric and males are negative alometric. The other body relationships are equal in both male and female.

Cetengraulis mistycetus es una anchoveta americana, que se encuentra localizada en la costa americana de México hasta Perú. Su valor comercial es relevante en la parte interna del Golfo de Nicoya, ya que la flota artesanal tradicional la utiliza como carnada viva para la línea de anzuelos. En el presente estudio, se determinó la edad de la primera madurez sexual fue de 1:1,2 machos por hembra, para la época de mayor desove. La Fecundidad total se estimó entre 48.498 oocitos en las tallas que van de 19 a 21, 9 cm. La fecundidad relativa estimada fue de 813 oocitos por gramo de pez para el primer grupo de talla y de 1.1145 oocitos para gramo de pez para el segundo.

Universidad Nacional, Costa Rica

Escuela de Ciencias Biológicas

Country
Costa Rica
Related Organizations
Keywords

Q1-390, Science (General), ANCHOAS, FERTILIDAD ANIMAL, Science, Q, ANCHOVIES, ANIMAL FERTILITY, GOLFO DE NICOYA (COSTA RICA)

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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gold