Bioaccumulation and toxicity of different copper concentrations in Tetraselmis chuii
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Date
2005
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info:eu-repo/semantics/openAccess
Abstract
Bakır'ın farklı yoğunluklarının Tetraselmis chuii'ye toksik etkisi ve birikimi. Çevre kirliliğinden korunmak amacıyla son yıllarda ağır metallerin biyolojik yöntemle ortamdan alınması konusu giderek önem kazanmaktadır. Algal biyomas, endüstriyel atık sular veya diğer kaynaklardan ağır metallerin uzaklaştırılması için ekonomik olarak kullanılabilmektedir. Bu çalışmada bir ağır metal olan bakırın alg büyümesi üzerine etkisi araştırılmıştır. Tetraselmis chuifnm, farklı yoğunluklarını içeren ortamlarda bakır biriktirme düzeyleri belirlenmiştir. Kültürler, I, II, III, IV ve Volmak üzere gruplandırılmış ve $Cu^{++}$ yoğunlukları sırasıyla 3.59. $10^{-9}$ (kontrol), $5.10^{-9}, 10.10^{-9} , 15.10^{-9} ve 20.10^{-9}$ nM olarak oluşturulmuştur. T. chuii kültürlerinde büyüme ve denemenin 3, 5 ve 7. günlerinde bakır bağlama düzeyleri belirlenmiştir. Denemenin sonunda kültür ortamlarına eklenen $Cu^{++}$ sebebiyle alg büyümesinde bir gerileme gözlenmemiştir. Ortalama spesifik büyüme oranları $(mu)$, beş grup için sırasıyla 0.53,0.53,0.31,0.56 ve 0.61 olarak hesaplanmış ve benzer bulunmuştur (p>0.05). Gruplar için belirlenen bakır miktarları sırasıyla 52.93,384.99,552.62,1611.08 ve 1673.96 $mu$ g metal $g^{-1}$ /kuru ağ. olarak hesaplanmış, IV. ve V. gruplarda belirtilen bakır miktarları diğer gruplara göre yüksek olmuştur. Bakır birikimi ve biyokonsantrasyon faktörleri gruplar arasında farklı bulunmuştur (p<0.05).
The biological removal of heavy metals has received attention increasingly in recent years because of its potential in environment protection. Algal biomass can be utilized economically for the removal of heavy metals from industrial wastewater or other sources. In this research the heavy metal copper and the growth of algae was focused mainly The ability of Tetraselmis chuii to accumulate copper metal in different concentrations was investigated. The cultures which were grouped I, II, III, IV and V, were exposed to Cu^ concentrations of 3.59.10-9(control), 5.10^{-9} ,10.10^{-9} ,15.10^{-9} and 20.10^{-9} nM respectively to determine the T. chuii growth and the binding levels of copper on the days of 3rd, 5th and 7th of the experiment. At the end of the study the growing of microalgae inhibition wasn't observed due to the addition of Cu++ in the culture mediums. The growth rates of the groups were found similar (p>0.05) and the mean specific growth rates $(mu)$ computed for the five groups were 0.53, 0.53, 0.31, 0.56 and 0.61, respectively. The copper amounts of groups were found to be 52.93,384.99,552.62,1611.08,1673.96 $mu$ g metal $g^{-1}$ dry weight for the group I to V on 7th day. Copper uptook in group V were calculated to be 1874.47±711.8,2173.03±611.66 and 1673.96±548.77 $mu$ g metal $g^{-1}$ dry weight for the days of 3rd, 5th and 7th, respectively. The amounts of copper accumulation and bioconcentration factors in the groups were found different (p<0.05). It was determined that the accumulations of copper in group IV and V contained high copper concentrations were found higher than the other groups.
The biological removal of heavy metals has received attention increasingly in recent years because of its potential in environment protection. Algal biomass can be utilized economically for the removal of heavy metals from industrial wastewater or other sources. In this research the heavy metal copper and the growth of algae was focused mainly The ability of Tetraselmis chuii to accumulate copper metal in different concentrations was investigated. The cultures which were grouped I, II, III, IV and V, were exposed to Cu^ concentrations of 3.59.10-9(control), 5.10^{-9} ,10.10^{-9} ,15.10^{-9} and 20.10^{-9} nM respectively to determine the T. chuii growth and the binding levels of copper on the days of 3rd, 5th and 7th of the experiment. At the end of the study the growing of microalgae inhibition wasn't observed due to the addition of Cu++ in the culture mediums. The growth rates of the groups were found similar (p>0.05) and the mean specific growth rates $(mu)$ computed for the five groups were 0.53, 0.53, 0.31, 0.56 and 0.61, respectively. The copper amounts of groups were found to be 52.93,384.99,552.62,1611.08,1673.96 $mu$ g metal $g^{-1}$ dry weight for the group I to V on 7th day. Copper uptook in group V were calculated to be 1874.47±711.8,2173.03±611.66 and 1673.96±548.77 $mu$ g metal $g^{-1}$ dry weight for the days of 3rd, 5th and 7th, respectively. The amounts of copper accumulation and bioconcentration factors in the groups were found different (p<0.05). It was determined that the accumulations of copper in group IV and V contained high copper concentrations were found higher than the other groups.
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Zooloji, Balıkçılık
Journal or Series
Su Ürünleri Dergisi
WoS Q Value
N/A
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Volume
22
Issue
3-4
