Akdeniz'de İki Farklı Solea solea Popülasyonunda Otolit Kütle Asimetrisinin Karşılaştırılması

Year 2018, Volume: 8 Issue: 1, 125 - 133, 15.06.2018

Serdar Yedier , Derya Bostancı Seda Kontaş Gülşah Kurucu Nazmi Polat

Abstract

Su kirliliği genel olarak okyanuslar, denizler,
nehirler, göller ve yeraltı suları gibi su kaynakları üzerinde doğal ve insan
faaliyetleri sonucu oluşmuş bir tür kirlilik olarak adlandırılabilir. Su kirliliği balık türlerini
doğrudan ve dolaylı olarak olumsuz etkilenmektedir. Sucul sistemdeki diğer canlılar gibi balıklar da
habitatlarında bulunan pestisitler, insektisitler ve herbisitler ve ağır
metaller gibi farklı kirleticilerden kaynaklı farklı stres türleriyle karşı
karşıyadır. Otolit kütle asimetrisinin, balıklarda çevresel stresin neden
olduğu bazı gelişimsel bozuklukları yansıtabilir. Özellikle yüksek seviyedeki otolit kütlesi asimetrisi
balıkların yaşamını olumsuz yönde etkileyebilir, bu nedenle bu asimetrinin
belirlenmesi her balık türü için çok önemlidir. Bu çalışmanın amacı Mersin ve
İskenderun popülasyonlarındaki Solea
solea'nın otolit kütle asimetrilerini karşılaştırmaktır. Total boyları 17,5-25,0
cm ve ağırlıkları 36,4-126,6 gr olan toplam 100 adet balık Akdeniz'den
yakalanmıştır. Asimetri, kör ve göz bölge otolitlerinin kütleleri arasındaki
fark dikkate alınarak hesaplanmıştır. Bu çalışmanın sonucunda, asimetri
değerleri, bu iki popülasyonda -0,25483 ve +0,41220 değerleri arasında
bulunmuştur. Mersin ve İskenderun popülasyonlarındaki Solea solea'nın otolit kütle asimetrisi ve mutlak otolit kütle
asimetrisi, balıkların total boyuyla ilişkili değildir.

Keywords

Otolith, Kütle asimetrisi, Solea solea, Ekolojik faktörler, Su kirliliği

Comparison of Otolith Mass Asymmetry in Two Different Solea solea Populations in Mediterranean Sea

Abstract

In general, water
pollution can be called as a kind of pollution resulting from natural and human
activities on water resources such as oceans, seas, rivers, lakes and ground
waters. Fish species are directly and indirectly adversely affected by water
pollution. Like other living things in the aquatic system,
fish are confronted with different types of stresses from different pollutants
such as pesticides, insecticides, herbicides and heavy metals in their habitats. Otolith
mass asymmetry may reflect some developmental disorders of fish caused by
environmental stress. Especially high-level
otolith mass asymmetry can adversely affect fish life, so the determination of
the asymmetry is very important for each species. The aim of the present
study to compare the otolith mass asymmetry of Solea solea from Mersin and İskenderun populations. A total of 100 fish with
17.5-25.0cm total length and 36.4-126.6g weight were collected from the
Mediterranean Sea. The asymmetry was
calculated considering the difference between blind and eye sides otolith
masses. In the present study, the asymmetry
values were found within -0.25483 and +0.41220 in the populations.
The otolith mass asymmetry and absolute otolith mass asymmetry of S. solea in the Mersin and İskenderun
populations are not related to the total length

Keywords

Otolith, Mass asymmetry, Solea solea, Ecological factors, Water pollution

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