Studies on the structure, life cycle and behaviour of Sardinella brasiliensis (Steindachner, 1879), in the region between 22ºS and 28ºS, Brazil: 3. Morphology and histology of ovaries and maturity scale

Authors

  • Victoria Judith Isaac-Nahum Superintendência do Desenvolvimento da Pesca
  • Anna Emília A. de M Vazzoler Universidade de São Paulo; Instituto Oceanográfico
  • Elza Matta Zanetti-Prado Universidade de São Paulo; Instituto Oceanográfico

DOI:

https://doi.org/10.1590/S1679-87591983000100001

Keywords:

Sardinella brasiliensis, reproductive organs, histology, reproduction (biology)

Abstract

A better understanding of the reproductive process is obtained when histologic analysis of gonades is associated with macroscopic observations during the sexual cycles. This paper describes the developmental stages of the oocytes of the ovaries in 119 females of S. brasiliensis sampled along the Brazilian coast, between 22ºS and 28ºS. The cytologic characteristics of the germinative cells during the maturation process are given and six oocyte phases are described. Seven maturity stages are established: A (virgin), Bi (incipient maturation), Bf (advanced maturation), Ci (mature), Cf (ripe), D (spent) and R (repose). These stages are compared to those presently used with respect to S. brasiliensis.

Downloads

Download data is not yet available.

References

Downloads

Published

1983-01-01

Issue

Vol. 32 No. 1 (1983)

Section

Artigos

How to Cite

Studies on the structure, life cycle and behaviour of Sardinella brasiliensis (Steindachner, 1879), in the region between 22ºS and 28ºS, Brazil: 3. Morphology and histology of ovaries and maturity scale . (1983). Boletim Do Instituto Oceanografico, 32(1), 1-16. https://doi.org/10.1590/S1679-87591983000100001