NAZİK GÖLÜ (BİTLİS, TÜRKİYE) FİTOPLANKTONUNUN MEVSİMSEL DEĞİŞİMLERİ

Öz

Bu çalışma, Nazik Gölü fitoplanktonunun mevsimsel deðiþimlerinin belirlenmesi amacıyla, 3 istasyonda ve Ocak 2014-Şubat 2015 tarihleri arasında mevsimsel su ve fitoplankton örnekleri alınmıştır. Nazik Gölü’nden alýnan su örneklerinde sıcaklık, pH, çözünmüþ oksijen, oksijen doygunluğu, elektriksel iletkenlik ölçümleri ve klorür, sülfat, nitrat, toplam azot, toplam fosfor ve klorofil a analizleri yapılmıştır. Yapılan çalışma sonucunda, Nazik Gölü’nün genel şartlar bakımından I. sınıf su kalitesine sahip olduğu belirlenmiştir. Gölde Bacillariophyta’ya ait 46, Charophyta’ya ait 3, Chlorophyta’ya ait 2, Cyanophyta’ya ait 5 ve Dinophyta’ya ait 1 olmak üzere toplam 57 takson kaydedilmiştir. Bu gruplara ait alglerden en fazla türle temsil edilenler Bacillariophyta’dan Cymbella, Fragilaria, Navicula ve Nitzschia (4’er takson) olmuştur. İstasyonlarda tespit edilenlere göre bakıldığında takson sayısı, en fazla 52 taksonla III. istasyonda, en az 37 takson olarak I. istasyonda kaydedilmiştir.

Anahtar Kelimeler

• Nazik gölü,Fitoplankton,Mevsimsel değişim,Bitlis,Türkiye

THE SEASONAL VARIATIONS OF PHYTOPLANKTON OF NAZİK LAKE (BİTLİS, TURKEY)

Abstract

This study was carried out to determine phytoplankton and water quality of Nazik Lake within the boundaries of Bitlis province. The study was conducted between January 2014 and February 2015, and surface water samples were taken at sesonality intervals from three sampling stations on the lake. The measurements of temperature, pH, dissolved oxygen, saturation of oxygen, electrical conductivity and analysis of chloride, sulfate, nitrate, total nitrogen, total phosphorus and chlorophyll a were performed in water samples. Nazik Lake has first class quality of water regarding the results of the surface water measurements and analysis. A total of algal taxa have been recorded; 46 taxa from Bacillariopyhta, 3 from Charophyta, 2 from Cyanophyta and 1 from Dinophyta. Among these algae, Cymbella, Fragilaria, Navicula ve Nitzschia (4 taxa) were the noticable genera represented in higher numbers of species. With respect to the stations, the highest number of the taxa was recorded in station III with 52 taxa and least taxa in the station I (37 taxa).

Keywords

• Nazik lake,Phytoplankton,Seasonal distribution,Bitlis,Turkey

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