Türkiye'de Gambusia (sivrisinek balığı) türlerinin dağılımı ve biyoekolojik özelliklerinin incelenmesi
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Dosyalar
Tarih
2018
Yazarlar
Dergi Başlığı
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Yayıncı
Ege Üniversitesi, Fen Bilimleri Enstitüsü
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Bu çalışmada, özellikle endemik türlerin devamlılığı açısından risk oluşturduğu belirtilen sivrisinek balıklarının Türkiye'deki dağılımları, morfolojik ve meristik özellikleri, boy-ağırlık ilişkileri, habitat tercihleri ve üreme özelliklerinin araştırılması amaçlanmıştır. Çalışma süresince Türkiye'de toplam 130 farklı lokalite taranmıştır. 39'u göl 28'i akarsu olmak üzere toplam 67 lokalitede G. holbrooki varlığı tespit edilmiştir. Tüm bireyler için dişi:erkek oranı 1:0,40 olarak bulunmuştur. Total boy dağılımı 1,27-57,2 mm arasında bulunmuştur. Dorsal, anal ve kaudal yüzgeç ışın sayıları sırasıyla 7-8, 8-9, 20-22 arasında olduğu tespit edilmiştir. Farklı lokalitelerdeki popülasyonlarda 10 morfometrik ölçüm yapılmıştır. Dişi ve erkek bireylerin boy-ağırlık ilişkisi eşitlikleri sırasıyla W=0,0101 L3,2281, r=0,982, ve W=0,0112 L2,9811, r=0,944 olarak hesaplanmıştır. Farklı lokalitelerdeki hamile bireyler incelenmiş, maksimum yumurta ve embriyo sayısı toplam 182 olarak tespit edilmiştir.
In this study, it was aimed to investigate the distribution in Turkey, morphological and meristic characteristics, length-weight relationships, habitat preferences, and reproductive characteristics of mosquitofish, which are considered as a threat especially for endemic species' persistence. During the study, a total of 130 different stations were investigated in Turkey. G. holbrooki specimens were found in total of 67 stations, including 28 rivers and 39 lakes. Female:male ratio was found as 1: 0,40 in all individuals. The total length ranged from 1.27 to 57.2 mm. The number of dorsal, anal and caudal fin rays were found as 7-8, 8-9, 20-22, respectively. Ten different morphometric features were investigated according to stations. Length-weight relationships of females and males were found as W=0.0101 L3.2281, r=0.982 and W=0.01121 L2.9811, r=0.944. Pregnant individuals in different localities were examined and the maximum number of egg and embrio were deterimined as 182.
In this study, it was aimed to investigate the distribution in Turkey, morphological and meristic characteristics, length-weight relationships, habitat preferences, and reproductive characteristics of mosquitofish, which are considered as a threat especially for endemic species' persistence. During the study, a total of 130 different stations were investigated in Turkey. G. holbrooki specimens were found in total of 67 stations, including 28 rivers and 39 lakes. Female:male ratio was found as 1: 0,40 in all individuals. The total length ranged from 1.27 to 57.2 mm. The number of dorsal, anal and caudal fin rays were found as 7-8, 8-9, 20-22, respectively. Ten different morphometric features were investigated according to stations. Length-weight relationships of females and males were found as W=0.0101 L3.2281, r=0.982 and W=0.01121 L2.9811, r=0.944. Pregnant individuals in different localities were examined and the maximum number of egg and embrio were deterimined as 182.
Açıklama
Anahtar Kelimeler
Gambusia Holbrooki, Sivrisinek Balığı, Morfometri, Biyoekoloji, İstilacı Tür, Ekolojik Etki, Endemik Tür, Gambusia Holbrooki, Mosquitofish, Morphometry, Bioecology, Invasive Species, Ecological Impact, Endemic Species
