Uptake of Nitrate-Nitrogen in Intensive Shrimp Culture Ponds by Sterile Ulva sp.
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We studied nitrate-nitrogen uptake by sterile <I>Ulva</I> sp. under various conditions including tropical ones. The Sterile <I>Ulva</I> sp., which was collected from Yokohama, Japan, removed nitrate-nitrogen in the culture medium. The algae took in nitrate-nitrogen even without light. The uptake rate of nitrate-nitrogen decreased with the increase of the nitrate-nitrogen content in algal cells. The ambient ammonia-nitrogen lowered the rate of nitrate-nitrogen uptake, whereas the ambient nitrate-nitrogen did not affect the ammonia-nitrogen uptake.
- JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 39(10), 1128-1131, 2006-10-01
The Society of Chemical Engineers, Japan