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

Unis C., Erkan M. B.

TURKISH JOURNAL OF ZOOLOGY, cilt.36, sa.6, ss.775-784, 2012 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 36 Sayı: 6
  • Basım Tarihi: 2012
  • Doi Numarası: 10.3906/zoo-1110-2
  • Dergi Adı: TURKISH JOURNAL OF ZOOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.775-784
  • İstanbul Üniversitesi Adresli: Evet

Özet

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.