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Algae > Volume 15(3); 2000 > Article
Algae 2000;15(3): 163-168.
Influences of Salinity on the Nitrate and Phosphate Removal by Fucus serratus, F. spiralis and F. vesiculosus (Phaephyta)
Eun Kyoung Hwang
ABSTRACT
The influences of salinities (8.5, 17, 25.5 and 34‰) on the removal of nitrate and phosphate by Fucus serratus, F. spiralis and F. vesiculosus were investigated. The total amounts of nitrate and phosphate taken up by Fucus serratus were 93.8% and 81.1% during 96 hours, respectively. And the removed amounts were 57.3% of N, 88.0% of P in F. spiralis, 61.5% of N and 87.2% of P in F. vesiculosus. Nitrate uptake by F. spiralis was promoted less than 34‰ of salinity. The uptake rates of nitrate and phosphate by salinity treatment were high at the first one hour during the culture period of 96 hours. The accumulated uptakes of nitrate and phosphate showed that the three Fucus species could remove 13.5-19.9 μmol N·g supper(-1) and 1.4-1.9 μmol P·g supper(-1) even under the medium of 8.5‰ salinity. Therefore, the nitrate and phosphate removal of the three fucoids did not affected by low salinity.


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