Seasonal monitoring of algal flora in the Pamukkale travertines and thermal springs Denizli/Turkey

Abstract

In this study, the distribution and seasonal variation of the algal flora and some environmental parameters in the travertines and thermal water springs in Pamukkale-Denizli have been investigated between September 2010 and August 2011. For this purpose, a number of stations have been designated in the travertines, water channels, pools and ponds, where the algae samples were collected for the four seasons. Some of the environmental parameters such as temperature, pH, dissolved oxygen and electrical conductivity were measured in the study area in each season. The collected algae samples were identified, and their cell concentrations were calculated. The obtained data set was statistically analyzed by a series of tests in Statistical Package for Social Sciences SPSS software package. According to the Kruskal Wallis H test p < 0.05, chi square > 5 there is a significant relationship between the water samples collected from each station and T, pH, DO. According to the Friedman test EC value has a significant relationship according to different seasons p < 0.05 . The highest EC value is observed in the spring, followed by summer, fall and winter, respectively. The relationship between the environmental parameters, species functional group, seasons and stations were observed by using Canonical Correspondence Analysis CCA software package. Negative and positive correlation and also the affinity of the species according to the environmental parameters were observed. In this study 35 genera, 57 taxa belonging to Cyanophyta 26 genera, 46 taxa , Charophyta 6 genera, 8 taxa , Chlorophyta 2 genera, 2 taxa and Dinophyta 1 genus, 1 taxon have been identified. Oscillatoria limnetica and Cyanobacterium minervae were the most abundant species, followed by Chara.sp., Spirulina subsalsa, Chroococcua minutus, Anabaena sp., Schizothrix thermophila, Gloeocapsa sp. and Pseudanabaena papillaterminata

Keywords

• Thermophilic algae, Hierapolis Travertines, Phytoplankton, Benthic algae, Thermophilic Cyanophyta, Environmental parameters

Pamukkale travertenleri ve termal su kaynaklarindaki alg florasının mevsimsel izlemesi Denizli

Abstract

Eylül 2010 - Ağustos 2011 tarihleri arasında Pamukkale–Denizli’de yapılmış olan bu çalışmada, Pamukkale travertenleri ve çevresinde bulunan sıcak su kaynaklarındaki alg florası belirlenmiş, alg türlerinin mevsimsel değişimi ve yoğunlukları araştırılmıştır. Travertenler, su kanalları, havuzlar ve göletler üzerinde dört mevsim süresince çeşitli istasyonlar belirlenerek, alg örnekleri elde edilmiş ve alg türlerinin teşhisleri yapılarak, hücre konsantrasyonları hesaplanmıştır. Çalışma alanında her bir mevsimde sıcaklık, pH, çözünmüş oksijen ve elektriksel iletkenlik gibi bazı çevresel parametreler ölçülmüştür. Elde edilen verilerin istatistiksel analizleri Statistical Package for Social Sciences SPSS paket programı ile gerçekleştirilmiştir. Kruskal Wallis H testine göre; T, pH, DO parametreleri ile herbir istasyondan elde edilen su örnekleri arasında, Friedman testiyle ise farklı istayonlarda ölçlülen EC değerleri arasında kayda değer bir ilişki olduğu gözlenmiştir p < 0.05, ki kare > 5 . En yüksek EC değeri ilkbahar mevsiminde gözlenmiştir; bunu sırasıyla yaz, sonbahar ve kış izlemiştir. Çevresel parametreler, türlerin fonksiyonel grupları, mevsimler ve istasyonlar arasındaki ilişki Canonical Correspondence Analysis CCA paket programı kullanılarak belirlenmiştir. Türlerin çevresel parametrelere göre ilişkilerinin negatif ve pozitif korelasyonları, ayrıca türlerin bu parametrelere göre gösterdikleri eğilimler belirlenmiştir. Bu çalışmada Cyanophyta 26 cins, 46 tür , Charophyta 6 cins, 8 tür , Chlorophyta 2 cins, 2 tür ve Dinophyta 1 cins, 1 tür divizyolarına ait 35 cins, 57 tür teşhis edilmiştir. Oscillatoria limnetica ve Cyanobacterium minervae en yaygın rastlanan türlerdir ve bunları Chara. sp., Spirulina subsalsa, Chroococcua minutus, Anabaena sp., Schizothrix thermophila, Gloeocapsa sp. ve Pseudanabaena papillaterminata takip etmiştir

Keywords

• Termofilik algler,Pamukkale Travertenleri,Fitoplankton,Bentik algler,Termofilik Siyanofitler

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