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Marine Biology

, Volume 127, Issue 3, pp 379–386 | Cite as

Sex and reproductive aspects in Serranus cabrilla (Osteichthyes: Serranidae): macroscopic and histological approaches

  • M. M. García-Díaz
  • V. M. Tuset
  • J. A. González
  • J. Socorro

Abstract

The gonads of Serranus cabrilla (Linnaeus, 1758) from the Canary Islands were studied between September 1992 and July 1993. Macroscopic classification of the maturity stages was compared with histolog ical classification of gonad characteristics, and the effect␣of the classification method on the determination of the spawning season and size at maturity was investigated. Analysis of gonad organization and development confirmed that this species is synchronously hermaphroditic. Ovarian-tissue development is asynchronous, and testicular tissue consists of continuous spermatogonia. Six stages of oogenesis and five of spermatogenesis are described, based on differences in staining and in size and on differences in the nucleus and cytoplasm structure as viewed through a light microscope. Two types of atretic degeneration of eggs are also described. Agreement between macroscopic and histological staging was low, although both methods provided similar results in spawning-season determination and size at maturity. The spawning season of S. cabrilla is from February to July, with a peak in May. Fish size at first maturity (size at which 50% of all fish sampled are in relevant maturity stage) is 152 mm standard length (SL), and size at mass maturity (size at which 95% of all fish sampled are in relevant maturity stage) is 167 mm SL.

Keywords

Light Microscope Standard Length Classification Method Maturity Stage Canary Island 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1997

Authors and Affiliations

  • M. M. García-Díaz
    • 1
  • V. M. Tuset
    • 1
  • J. A. González
    • 1
  • J. Socorro
    • 1
  1. 1.Instituto Canario de Ciencias Marinas (ICCM), D.G. Universidades e Investigación, Gobierno de Canarias, P.O. Box 56, E-35200 Telde (Las Palmas), SpainES

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