基于巴西中南部地区的大理石纹合鳃鱼（Bloch，1795年）（硬骨鱼纲，合鳃目，合鳃科）形态特征的卵泡直径范围

Follicular diameter range based on morphological features in Synbranchus marmoratus (Bloch, 1795) (Teleostei, Synbranchiformes, Synbranchidae) from the South-central region of Brazil.

作者信息

Spadella Maria Angélica, de Castilho-Almeida Rodrigo Braz, Quagio-Grassiotto Irani, Cesario Maria Dalva

机构信息

Departamento de Morfologia, Instituto de Biociências, Universidade Estadual Paulista, Campus de Botucatu, Distrito de Rubião Júnior, s/n, CEP 18.618-000, CX 510 Botucatu, Sao Paulo, Brasil.

出版信息

Tissue Cell. 2005 Apr;37(2):91-100. doi: 10.1016/j.tice.2004.10.006.

DOI:10.1016/j.tice.2004.10.006

PMID:15748735

Abstract

The morphological characteristics of Synbranchus marmoratus female germ cells in various development stages were described in details; then measurements of ovarian follicle diameters were taken from primary and secondary growth as during these development stages the oocyte size varied considerably along the fish growth. The results were correlated to total fish length, using the individuals division in six size classes. It was possible to group oocytes by stages according to histological characteristics but not according to morphometric diameter, as there was a wide variation in diameter in each stage and overlap between different maturation stages. These data make available new information on the reproductive biology of Synbranchidae.

摘要

详细描述了线鳢雌鱼不同发育阶段生殖细胞的形态特征；然后测量了初级生长和次级生长阶段卵巢卵泡的直径，因为在这些发育阶段，卵母细胞大小会随着鱼的生长而有很大变化。将结果与鱼的全长相关联，鱼被分为六个大小等级。根据组织学特征可以按阶段对卵母细胞进行分组，但不能根据形态测量直径进行分组，因为每个阶段的直径变化很大，不同成熟阶段之间存在重叠。这些数据为合鳃科的生殖生物学提供了新信息。