Van Balığı [Alburnus tarichi (Güldenstädt, 1814)] Derisindeki Mukus Hücrelerinin Tatlı Su Adaptasyonu Sırasında Değişimi

Öz

Anadrom bir balık olan Van balığı, üremek amacıyla Van Gölünün ekstrem şartlarından göle dökülen tatlı sulara doğru sürüler halinde göç eder. Aynı şekilde üremesini tamamlayan balıklar tekrar beslenmek amacı ile göl ortamına geri dönerler. Bu iki farklı sucul ortamda deri, içerisinde bulunduğu ortamın farklı fizikokimyasal etkilerine maruz kalır. Bu çalışmada, Van balığının derisindeki mukus hücrelerinin üreme göçü sırasında histokimyasal ve morfometrik değişimleri incelendi. İncelenen balıkların mukus hücrelerinin farklı sucul ortamlarda (akarsu ve göl) hem çapının hem de kimyasal içeriğinin değişim gösterdiği belirlendi. Bu değişiklikler vücudun farklı bölgelerinde de (dorsal ve lateral) farklılık gösterdi. Van Balığında gözlenen bu histolojik ve histokimyasal değişimlerin balığın sucul ortamlara adaptasyonu için zorunlu olduğu düşünülmektedir.

Anahtar Kelimeler

• Van Gölü
• Histoloji
• Epidermis
• Mukus hücreleri

The Changes of Mucous Cells in the Skin of Van Fish [Alburnus tarichi (Güldenstädt, 1814)] during Freshwater Adaptation

Öz

Van fish, an anadromous fish, migrate in flocks to fresh water poured into the lake from the extreme conditions of Van Lake for breeding. The fish that complete their breeding return to the lake for feeding. In these two different aquatic environments, skin is exposed to different physicochemical effects of water. In the present study, morphometric and histological changes in mucous cells of the skin during reproductive migration were studied. The thickness of the epidermis was found to be thicker in the freshwater than in the lake environment. It has been determined that both the diameter and the chemical content of the mucus cell vary in different aquatic environments (freshwater and lakes). For this reason, it is thought that mucus cells are present in different types in the skin of Van fish. Also, these changes are different in several parts of the body (dorsal and lateral). These histological and histochemical changes in Van Fish are thought to be necessary for the adaptation of fish to aquatic environments.

Anahtar Kelimeler

• Epidermis
• Van Lake
• Histology
• Mucous cells

Kaynakça

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