Reproductive aspects of Jack mackerel Trachurus murphy

Authors

  • Ángel Perea Instituto del Mar del Perú (IMARPE), esquina Gamarra y General Valle, S/N Chucuito, Callao, Perú.
  • Julio Mori Instituto del Mar del Perú (IMARPE), esquina Gamarra y General Valle, S/N Chucuito, Callao, Perú.
  • Betsy Buitrón Instituto del Mar del Perú (IMARPE), esquina Gamarra y General Valle, S/N Chucuito, Callao, Perú.
  • Javier Sánchez Instituto del Mar del Perú (IMARPE), esquina Gamarra y General Valle, S/N Chucuito, Callao, Perú.

DOI:

https://doi.org/10.15381/rpb.v20i1.2616

Keywords:

Reproduction, Jack mackerel, Trachurus murphyi, reproductive cycle, spawning, pelagic, Peruvian fishery

Abstract

The time series of monthly gonadosomatic index (GSI) and biannual size at first maturity of Jack mackerel Trachurus murphyiNichols 1920 in Peru between 1967 and 2012 is analyzed and discussed. The annual and interannual variation of the reproductive cycle was determined. It is shown that in Peru T. murphyihas a single relatively extended spawning period with a maximum in November each year. It is also shown that for more than four decades T. murphyi has spawned regularly every year in Peruvian waters. The reproductive activity of T. murphyi has a greater variability off Peru and the spawning period has peaks of lesser magnitude but extend longer than observed in the spawning occurring off Chile. The analyses of the sizes at first maturity of Jack mackerel in Peruvian waters did not show significant changes throughout the entire period observed.

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Published

04/15/2013

Issue

Vol. 20 No. 1 (2013)

Section

BIOLOGY OF JACK MACKEREL (Trachurus murphyi) IN PERU

License

Copyright (c) 2013 Ángel Perea, Julio Mori, Betsy Buitrón, Javier Sánchez

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

AUTHORS RETAIN THEIR RIGHTS:

a. Authors retain their trade mark rights and patent, and also on any process or procedure described in the article.

b. Authors retain their right to share, copy, distribute, perform and publicly communicate their article (eg, to place their article in an institutional repository or publish it in a book), with an acknowledgment of its initial publication in the Revista Peruana de Biologia.

c. Authors retain theirs right to make a subsequent publication of their work, to use the article or any part thereof (eg a compilation of his papers, lecture notes, thesis, or a book), always indicating its initial publication in the Revista Peruana de Biologia (the originator of the work, journal, volume, number and date).

How to Cite

Perea, Ángel, Julio Mori, Betsy Buitrón, and Javier Sánchez. 2013. “Reproductive Aspects of Jack Mackerel Trachurus Murphy”. Revista Peruana De Biología 20 (1): 029-034. https://doi.org/10.15381/rpb.v20i1.2616.