Fosfat ve Silikatin Zararli Denizel Diyatom Büyümesi Üzerine Etkisi: Thalassiosira Allenii Takano (Bacillariophyceae)
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Dosyalar
Tarih
2014
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Namık Kemal Üniversitesi, Ziraat Fakültesi
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Thalassiosira allenii (Takano) türünün fosfor ve silikattan nasil etkilendigini daha iyi anlamak için büyüme hizlari üzerinde 6 farkli reaktif PO4 ve 7 farkii reaktif Si konsatrasyonunun etkiieri araitirilmijtir. T.allenii türü, izmir Körfezi- Kuzey Ege Denizi-Türkiye'den izóle edilerek, f/2 zenginieçtirme ortaminda, sürekli-aydmhk periyotta ve kesikii kültür sisteminde inkübe edildi. Türün büyümesi eksponensiyel büyüme tazi takip edilerek Chl o (?gl-1) olarak ölcüldü, elde edilen verilerin istatistiksel analizi en kücük kareler metoduyla yapildi. Her bir nutrient için hesaplanan Ks ve n^ax degerleri sirasiyla: PO4 için K^= 0.544 HM-PO4-P ve Hmax= 0,972 gün-1 Si için -Ks=0,615 nM Si ve Hmax=0,989 gün-1 oiarak bulundu. T.allenii türü, PO4-P sinirli geliçim gösterirken, Silikat smirlayiciligi tespit edilememiçtir. Bu sonuçiar, özellikle evsel kirletici yükün yogun oldugu ve Si degijimlerininin sik ya5andigi kiyisal sularda T.allenii türünün ajiri alg çogalmalarinda yer alma yetenegine sahip oldugunu gostermektedir.
In order to better understand the effect of phosphoiais and silica on Thalassiosira allenii (Takano), the effects of 6 different concentrations of reactive PO4 and 7 different concentrations of reactive Si were investigated. T.allenii was isolated from Izmir Bay-Northern Aegean Sea-Turkey and incubated in a f/2 enrichment medium under constant light in a batch culture system. The growth rate of the species was measured as Chl a (mg/l) by monitoring the exponential growth phase. The statistical analysis of the obtained data was performed by utilizing the method of least squares. Half saturation constant (Ks) and maximum spesific growth rate (?max) values estimated for phosphorus and silica were obtained as follows: Ks=0,55 ?M PO4-P and ?max=0,847 day-1 for phosphorus, -Ks=0,615 ?M Si and ?max=0,989 day-1 for silica. This results shows that T.ailenii species has ability to take a great role on algal blooms in coastal waters which particularly domestic pollution load intense and changes of Si frequently experiencing.
In order to better understand the effect of phosphoiais and silica on Thalassiosira allenii (Takano), the effects of 6 different concentrations of reactive PO4 and 7 different concentrations of reactive Si were investigated. T.allenii was isolated from Izmir Bay-Northern Aegean Sea-Turkey and incubated in a f/2 enrichment medium under constant light in a batch culture system. The growth rate of the species was measured as Chl a (mg/l) by monitoring the exponential growth phase. The statistical analysis of the obtained data was performed by utilizing the method of least squares. Half saturation constant (Ks) and maximum spesific growth rate (?max) values estimated for phosphorus and silica were obtained as follows: Ks=0,55 ?M PO4-P and ?max=0,847 day-1 for phosphorus, -Ks=0,615 ?M Si and ?max=0,989 day-1 for silica. This results shows that T.ailenii species has ability to take a great role on algal blooms in coastal waters which particularly domestic pollution load intense and changes of Si frequently experiencing.
Açıklama
Anahtar Kelimeler
yarı-doygunluk katsayısı, silikat, fosfat, Denizel diyatom, büyüme hızı, silicate, phosphate, Marine diatom, half saturation constant, growth rate
Kaynak
Tekirdağ Ziraat Fakültesi Dergisi
WoS Q Değeri
Scopus Q Değeri
Cilt
11
Sayı
1
