Atresia of developing Oocytes in walleye pollock Theragra chalcogramma

Autor: A. M. Privalikhin, K. A. Zhukova, O. G. Poluektova
Rok vydání: 2015
Předmět:
Zdroj: Journal of Ichthyology. 55:664-670
ISSN: 1555-6425
0032-9452
DOI: 10.1134/s0032945215050136
Popis: The present study describes the process and characteristic features of oocyte resorption throughout its developmental stages in T. chalcogramma (Pallas, 1814). Histological methods revealed two major resorption pathways: follicular and follicular-histiocytic atresia. Degeneration of oocytes in early stages of development occurs with the participation of follicular cells, whilst late developmental stages are characterized by both follicular and histiocyte cell involvement. As in other species of fish, oocyte resorption in T. chalcogramma serves the function of fecundity regulation and should be regarded as a normal physiological response to environmental or anthropogenic factors.
Databáze: OpenAIRE