Reproductive aspects of <i>Microchirus azevia</i> (Risso, 1810) (Pisces: Soleidae) from the south coast of Portugal

Isabel Afonso-Dias; Catarina Reis; J. Pedro Andrade

doi:10.3989/scimar.2005.69n2275

Reproductive aspects of Microchirus azevia (Risso, 1810) (Pisces: Soleidae) from the south coast of Portugal

Authors

Isabel Afonso-Dias CCMar, FCMA - Universidade do Algarve
Catarina Reis Universidade do Algarve, FCMA/CCMar
J. Pedro Andrade Universidade do Algarve, FCMA/CCMar

DOI:

https://doi.org/10.3989/scimar.2005.69n2275

Keywords:

reproduction, Microchirus azevia, maturity

Abstract

Fresh fish obtained from commercial landings in the harbours of Olhão and Quarteira (south Portugal) in 1998 and 1999, were examined in order to study different aspects of the reproductive biology of Microchirus azevia (Risso, 1810): spawning season, ovary maturation, length/age at first maturity and sex ratio. A five-stage maturity scale, based on external appearance was used to classify the ovaries. M. azevia is a winter-spring batch spawner with a protracted spawning season. Females outnumbered males in length classes greater than 19 cm and in all age groups. The estimated mean size at first maturity (L_50%) for females was 23 cm total length at 3 years of age (t_50%).

Downloads

Download data is not yet available.

Downloads

Published

2005-06-30

How to Cite

Afonso-Dias I, Reis C, Pedro Andrade J. Reproductive aspects of Microchirus azevia (Risso, 1810) (Pisces: Soleidae) from the south coast of Portugal. Sci. mar. [Internet]. 2005Jun.30 [cited 2025May1];69(2):275-83. Available from: https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/256

Download Citation

Issue

Vol. 69 No. 2 (2005)

Section

Articles

License

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

© CSIC. Manuscripts published in both the print and online versions of this journal are the property of the Consejo Superior de Investigaciones Científicas, and quoting this source is a requirement for any partial or full reproduction.

All contents of this electronic edition, except where otherwise noted, are distributed under a Creative Commons Attribution 4.0 International (CC BY 4.0) licence. You may read the basic information and the legal text of the licence. The indication of the CC BY 4.0 licence must be expressly stated in this way when necessary.

Self-archiving in repositories, personal webpages or similar, of any version other than the final version of the work produced by the publisher, is not allowed.