Micro-structure consideration of the adhesive organ in doctor fish, garra rufa (Teleostei; Cyprinidae) from the Persian Gulf Basin

Bu çalışma, Basra Körfezi havzasındaki doktor balığının (Garra rufa) (Heckel, 1843) yapışkan organının/diskinin (AO/AD) morfolojik ve mikro yapısını tanımlamaktadır. Ekolojik olarak bu tür, akarsu ve nehirlerin dibinde, batık kaya ve taşlara ağız açıklığının altında bulunan yapışkan organıyla tutunarak yaşar. Yapışkan organı, sayısız yumru taşıyan hilal şeklinde kallus parça ve modifiye bir kıvrımdan oluşmaktadır. Ayrıca, yapışkan organ dört temel birimden (disk saçaklı ön kıvrım, arka kıvrım, hissiz kısım ve diskin arka serbest kısmı) oluşmaktadır. Garra rufa’nın ağzı, ön tarafta çok sayıda arkadan bağlı saçak taşıyan "saçaklı ön kıvrım" ile çevrilidir. Arka kıvrım, saçaklı ön kıvrıma benzer şekilde ancak daha büyük ölçüde bazı yarı küresel yumrular içerir. Ancak, balıkların yapışkan organlarının habitat karakteri (morfoloji ve yapısı) ile makro-mikro şekli ve boyutları arasında önemli bir ilişki olduğu görülmektedir.

Basra Körfezi Havzasındaki doktor balık, garra rufa (cyprinidae:Teleostei)’nın yapışkan organının mikro yapısının incelenmesi

This paper describes the morphology and microstructures of adhesive organ/disc (AO/AD) of the doctor fish, Garra rufa (Heckel, 1843) in the Persian Gulf basin. Ecologically, this species prefer to lives in the bottom of streams and rivers, where they adhere to submerged rocks and stones with its adhesive apparatus located beneath the mouth opening. Adhesive organ consists of a crescent callus part and a modified labial fold which bearing numerous tubercles. Furthermore, adhesive apparatus comprise four basic units (fringed anterior labial fold, posterior labial fold, callous portion of disc, and posterior free margin of disc). The mouth in Garra rufa is surrounded by the “fringed anterior labial fold” in anterior part, which bears a large number of posteriorly directed fringes. Posterior labial fold also include some semi-spherical tubercles similar to those on the “fringed anterior labial fold”, but to some extend larger. However, it seems that there is a considerable relation between habitat characters (morphology and structure) and macro-micro shape and size of adhesive organs in fishes.

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Turkish Journal of Fisheries and Aquatic Sciences-Cover
  • ISSN: 1303-2712
  • Başlangıç: 2015
  • Yayıncı: Su Ürünleri Merkez Araştırma Enstitüsü - Trabzon
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