Observations on the reproductive biology of Unio terminalis (Bivalvia: Unionidae)

Mehmet Güler; Deniz Çoban; Birsen Kırım

doi:10.12714/egejfas.2017.34.3.09

TR EN

Unio terminalis (Bivalvia: Unionidae)' in üreme biyolojisi üzerine gözlemler

Öz

Çalışmamızda Çine Çayından toplanan tatlı su midyesi Unio terminalis (Bourguignat, 1852; Bivalvia: Unionidae)’ in üreme biyolojisi ile ilgili gözlemler yapılmıştır. Tatlı su midyelerinin kendilerine has üreme şekillerinde görülen yumurta paketleri, laboratuvar şartları altında yaklaşık 21–25 Cº su sıcaklığında Mayıs ve Kasım aylarında elde edilmiştir. Yumurta paketlerinin yumurta ve/veya özelleşmiş bir larva tipi olan glochidia ihtiva ettiği gözlenmiştir. Yumurtaların çapı ~225 μm olarak tespit edilmiştir; yumurtaları bırakan dişi boyu ve yumurta çapı arasında bir ilişki bulunmamıştır (R²<0,01). Elde edilen glochidia ortalama büyüklüğü ~185 μm ve bırakıldığı yapıdaki yoğunluğu 30±6 adet mm^-2 olarak kaydedilmiştir. Farklı boylardaki dişilerden elde edilen glochidia boyları arasında anlamlı bir büyüklük farkı bulunmamıştır (p>0,1). Larvalarının kapak hareketlerinin gözlenmesi sonucu en hızlı 1,2 sn^-1frekansında kapaklarını açıp kapattıkları ve bu hızı 15 sn boyunca koruyabildikleri gözlenmiştir. Bununla beraber, birçok larvanın 1 dk^-1 frekansından daha düşük sıklıkta kapak açma kapama hareketi yaptığı tespit edilmiştir. Farklı balık türleri ile birlikte yürütülen larva tutunma çalışmasında glochidia sadece Andinoacara cinsi balıkların solungaçlarında tespit edilmiştir.

Anahtar Kelimeler

tatlı su midyesi,Çine Çayı,Unio terminalis,glochidia,Çine Çayı

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Details

Primary Language

English

Subjects

-

Journal Section

Research Article

Authors

Mehmet Güler
ADNAN MENDERES UNIV
Türkiye

Deniz Çoban
ADNAN MENDERES UNIV

Birsen Kırım
ADNAN MENDERES UNIV

Publication Date

September 26, 2017

Submission Date

February 21, 2017

Acceptance Date

June 8, 2017

Published in Issue

Year 2017 Volume: 34 Number: 3

DOI

https://doi.org/10.12714/egejfas.2017.34.3.09

IZ

https://izlik.org/JA29GF62TG

Cite

RIS / Bibtex

APA

Güler, M., Çoban, D., & Kırım, B. (2017). Observations on the reproductive biology of Unio terminalis (Bivalvia: Unionidae). Ege Journal of Fisheries and Aquatic Sciences, 34(3), 303-309. https://doi.org/10.12714/egejfas.2017.34.3.09

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Observations on the reproductive biology of Unio terminalis (Bivalvia: Unionidae)

Unio terminalis (Bivalvia: Unionidae)' in üreme biyolojisi üzerine gözlemler

Öz

Anahtar Kelimeler