Yıl: 2005 Cilt: 29 Sayı: 4 Sayfa Aralığı: 327 - 335 Metin Dili: Türkçe İndeks Tarihi: 29-07-2022

The effect of disturbances to habitat quality on otter (Lutra lutra) activity in the River Kızılırmak (Turkey): A case study

Öz:
Kızılırmak nehri üzerindeki küçük bir alanda yaşayan su samuru başlıca üç nedene bağlı habitat daralmasına maruz kalmıştır; araştırma bölgesinin üst kısmındaki baraj yapılanması, alt kısmındaki petrol rafineri atıklarından dolayı kirlenme ve bu iki bölge arasında yerleşim ve balıkçılık gibi faaliyetleri içeren insan aktiviteleri. Su samurunun dışkı aktivitesi, su samurunun bu bölgedeki habitat kullanım özelliğini tespit etmek üzere ölçülmüştür ve dışkı aktivitesi istasyonlar arasında farklılıklar göstermiştir. Su kalite biyotik indeksi (BMWP), biyoçeşitlilik indeksleri (Simpson's ve Shannon) ve doğal kıyı vejetasyonu indeksinin de (QBR) işaret ettiği üzere, daha düşük habitat kalitesi gösteren baraj seti çıkışındaki istasyon l'de (istasyon II ile karşılaştırıldığında) daha yüksek dışkı aktivitesi tespit edilmiştir. Bunun nedeni, baraj seti altında kalan bu bölgede yıl boyunca su samuruna yeterli besin bulunmasını sağlayacak daha sabit bir durgun su kütlesinin bulunmasıdır. Nehrin daha alt bölgesinde kalan istasyon (ist. II), daha yüksek nehir su kalitesi ve doğal nehir kıyı vejetasyonu kalitesine sahip olmasına rağmen, baraj suyunun salınması uygulamalarının neden olduğu akış değişiklikleri, yılın değişik zamanlarında daha az uygun olan besin şartlarının oluşumuna yol aşmıştır. Bu iki istasyondan toplanan dışkı örneklerindeki besin artıkları, su samurunun istasyon l'de daha fazla balıkla beslendiğini ortaya koymuştur. Çalışma bölgesinin en alt kısmına rastlayan petrol rafinerisi atıklarının bulunduğu bölgedeki istasyon lll'de dışkıya rastlanmamıştır. Bu çalışmada, habitat kalite indeksleri, su samurunun habitat kullanımına dair aktivitesiyle ilişkilendirilmeye çalışılmıştır. Bu indeksler, su samuru için yönetim stratejilerinin geliştirilmesinde kullanılabilecek araçlar olarak gözükmektedir.
Anahtar Kelime: çevresel etki kirlilik Lutra lutra habitatlar barajlar biyoçeşitlilik biyolojik indeks Kırıkkale Kızılırmak su kalitesi dışkı nehirler

Konular: Biyoloji

Kızılırmak (Kırıkkale, Türkiye) Nehrindeki su samuru (Lutra lutra) aktivitesi üzerine habitat kalitesindeki bozuklukların etkisi: Örnek çalışma

Öz:
Habitat restriction for otters living in a small part of the Kızılırmak River, occurred due mainly to 3 causes: dam construction at the upper end, heavy pollution by oil refinery effluent at the lower end and man-made activities such as housing and angling in-between. Sprainting activity was measured to assess habitat use by otters within the area and differences were shown between the sites. Compared to site II, higher sprainting activity was found at the site below the dam (site I), where habitat quality was poorer, as indicated by the water quality index (BMWP), diversity indices (Simpson's and Shannon-Wiever) and riparian quality index (QBR). This was due to the relatively more stable standing water formed at the foot of the dam, offering sufficient food availability at this site throughout the year. A site further downstream (site II) had higher river water and riparian habitat quality but flow variations caused by dam operations led to the occurrence of less suitable food conditions for otters at various times of the year. The food items found in spraints from the 2 sites revealed that otters fed on more fish at site I. No spraints were found in the lowest part of the study area (site 111), where heavy pollution occurred due to oil refinery discharge. Incorporation of the previously developed habitat quality indices into otter activity for habitat use was attempted in this study and these indices appeared to be promising tools for the establishment of management strategies for otters.
Anahtar Kelime: habitats dams biodiversity biological index Kirikkale Kizilirmak water quality faeces rivers environmental impact pollution Lutra lutra

Konular: Biyoloji
Belge Türü: Makale Makale Türü: Araştırma Makalesi Erişim Türü: Erişime Açık
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APA TÜZÜN İ, Albayrak İ (2005). The effect of disturbances to habitat quality on otter (Lutra lutra) activity in the River Kızılırmak (Turkey): A case study. , 327 - 335.
Chicago TÜZÜN İLHAMİ,Albayrak İrfan The effect of disturbances to habitat quality on otter (Lutra lutra) activity in the River Kızılırmak (Turkey): A case study. (2005): 327 - 335.
MLA TÜZÜN İLHAMİ,Albayrak İrfan The effect of disturbances to habitat quality on otter (Lutra lutra) activity in the River Kızılırmak (Turkey): A case study. , 2005, ss.327 - 335.
AMA TÜZÜN İ,Albayrak İ The effect of disturbances to habitat quality on otter (Lutra lutra) activity in the River Kızılırmak (Turkey): A case study. . 2005; 327 - 335.
Vancouver TÜZÜN İ,Albayrak İ The effect of disturbances to habitat quality on otter (Lutra lutra) activity in the River Kızılırmak (Turkey): A case study. . 2005; 327 - 335.
IEEE TÜZÜN İ,Albayrak İ "The effect of disturbances to habitat quality on otter (Lutra lutra) activity in the River Kızılırmak (Turkey): A case study." , ss.327 - 335, 2005.
ISNAD TÜZÜN, İLHAMİ - Albayrak, İrfan. "The effect of disturbances to habitat quality on otter (Lutra lutra) activity in the River Kızılırmak (Turkey): A case study". (2005), 327-335.
APA TÜZÜN İ, Albayrak İ (2005). The effect of disturbances to habitat quality on otter (Lutra lutra) activity in the River Kızılırmak (Turkey): A case study. Turkish Journal of Zoology, 29(4), 327 - 335.
Chicago TÜZÜN İLHAMİ,Albayrak İrfan The effect of disturbances to habitat quality on otter (Lutra lutra) activity in the River Kızılırmak (Turkey): A case study. Turkish Journal of Zoology 29, no.4 (2005): 327 - 335.
MLA TÜZÜN İLHAMİ,Albayrak İrfan The effect of disturbances to habitat quality on otter (Lutra lutra) activity in the River Kızılırmak (Turkey): A case study. Turkish Journal of Zoology, vol.29, no.4, 2005, ss.327 - 335.
AMA TÜZÜN İ,Albayrak İ The effect of disturbances to habitat quality on otter (Lutra lutra) activity in the River Kızılırmak (Turkey): A case study. Turkish Journal of Zoology. 2005; 29(4): 327 - 335.
Vancouver TÜZÜN İ,Albayrak İ The effect of disturbances to habitat quality on otter (Lutra lutra) activity in the River Kızılırmak (Turkey): A case study. Turkish Journal of Zoology. 2005; 29(4): 327 - 335.
IEEE TÜZÜN İ,Albayrak İ "The effect of disturbances to habitat quality on otter (Lutra lutra) activity in the River Kızılırmak (Turkey): A case study." Turkish Journal of Zoology, 29, ss.327 - 335, 2005.
ISNAD TÜZÜN, İLHAMİ - Albayrak, İrfan. "The effect of disturbances to habitat quality on otter (Lutra lutra) activity in the River Kızılırmak (Turkey): A case study". Turkish Journal of Zoology 29/4 (2005), 327-335.