Histology and morphology of the epigonal organ with special referance to the lymphomyeloid system in Rhinobatos rhinobatos Rhinobathos rhinobathos'ta lenfomyeloid sisteme özel epigonal organın histolojisi ve morfolojisi

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Bircan-Yildirim Y., Çek Ş., Başusta N., Atik E.

Turkish Journal of Fisheries and Aquatic Sciences, vol.11, no.3, pp.1-8, 2011 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 11 Issue: 3
  • Publication Date: 2011
  • Doi Number: 10.4194/1303-2712-v11_3_03
  • Journal Name: Turkish Journal of Fisheries and Aquatic Sciences
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
  • Page Numbers: pp.1-8
  • Keywords: Epigonal organ, Histology, Lymphomyeloid system, Rhinobatos rhinobatos
  • Hatay Mustafa Kemal University Affiliated: Yes

Abstract

The present study is the first trial to describe the structure of the lymphomyeloid epigonal organ of the Rhinobatos rhinobatos. The morphological structure of the epigonal organ was similar in males and females and it was classified as stingray type. This organ possessed erythrocytes, thrombocytes, lymphocytes and two distinct types of granulocyts (eosinophils and neutrophils). Basophils were not detected in this study. Thrombocytes were variable in shape and lacked visible granules and some of them were spindle-shaped. Erythrocyte histology was similar to that previously described in birds, reptiles, amphibians, teleost and elasmobranchs. Granulocytes were probably stored within the lymphomyeloid epigonal organ and entered the circulation on maturation. © Published by Central Fisheries Research Institute (CFRI) Trabzon.