Aspectos relevantes en la biología de Cetengraulis mysticetus (Günther) (Pisces: Engraulidae) en el Golfo de Nicoya, Costa Rica (ING)
Abstract
Cetengraulis mysticetus is 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 (16-18,3 cm length) with 813 oocytes per gram 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 size relation females are isometric and males are negative alometric. The other body relationships are equal in both male and female.
Downloads
Published
Issue
Section
License
Authors who publish with this journal agree to the following terms:
1. Authors guarantee the journal the right to be the first publication of the work as licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgment of the work's authorship and initial publication in this journal.
2. Authors can set separate additional agreements for non-exclusive distribution of the version of the work published in the journal (eg, place it in an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.
3. The authors have declared to hold all permissions to use the resources they provided in the paper (images, tables, among others) and assume full responsibility for damages to third parties.
4. The opinions expressed in the paper are the exclusive responsibility of the authors and do not necessarily represent the opinion of the editors or the Universidad Nacional.
Uniciencia Journal and all its productions are under Creative Commons Atribución-NoComercial-SinDerivadas 4.0 Unported.
There is neither fee for access nor Article Processing Charge (APC)
