Morphology and development of the female reproductive system of Astacus leptodactylus (Eschscholtz, 1823)(Decapoda, Astacidae)

Authors

ÇAĞDAŞ ÜNİŞ
MELİKE BELKIZ ERKAN

DOI

10.3906/zoo-1110-2

Abstract

In this study, the morphology and development of the female reproductive system in Astacus leptodactylus (Eschscholtz, 1823) were investigated. The trilobed ovary with 2 anterior lobules and only 1 posterior lobule lie dorsally to the gut on the large hepatopancreas. The oviduct extends laterally from the middle part of the ovary and its innermost layer produces 2 different types of secretion. The outermost layer of the ovary consists of a single layer of thin epithelium and a connective tissue under it. Longitudinally and annularly located collagen fibers are present in the connective tissue, and just under it lies a single layer of follicle cells, which surround the oocytes. The germarium containing oogonia is concentrated in the center of the ovarian lobe as a central germinal cluster.

Keywords

Astacidae, crayfish, reproductive biology, ovary

First Page

775

Last Page

784

Recommended Citation

ÜNİŞ, ÇAĞDAŞ and ERKAN, MELİKE BELKIZ (2012) "Morphology and development of the female reproductive system of Astacus leptodactylus (Eschscholtz, 1823)(Decapoda, Astacidae)," Turkish Journal of Zoology: Vol. 36: No. 6, Article 7. https://doi.org/10.3906/zoo-1110-2
Available at: https://journals.tubitak.gov.tr/zoology/vol36/iss6/7