Effects of ammonia-N, nitrate-N and effluents from abalone culture on growth of Haliotis discus hannai Ino
TAN Ye hui1,YANG Feng2,LEI Yan zhi2
1.South China Sea Institute of Oceanology CAS, Guangzhou 510000,China; 2.School of Life Science and Technology, Dalian Fisheries Univ., Dalian 116023, China
Abstract: Juvenile abalones (H. dicuss hainai) were exposed to different concentrations of ammonia-N, nitrite-N and effluents from abalone culture at a pH of 8.01±0.04. It was found that all these factors decreased the growth of juvenile abalone. There were significant decrease in growth of abalone at ammonia and nitrite-N up to 0.035 mg/L and 0.8 mg/L (P<0.05). The “maximum acceptable” levels(EC5)(a level that leads to reduce growth of organisms by 5%) of ammonia and COD Mn were 0. 022 mg/L and 1.66 mg/L in culture water for juvenile H.dicuss, respectively. While the EC5 of the single factor ammonia to abalone was 0.138, the no effect level was 0.045 mg/L.
谭烨辉, 杨凤, 雷衍之. 总氨、亚硝酸氮及养鲍污水对皱纹盘鲍生长的影响[J]. 大连海洋大学学报, 2003, 18(3): 204-209.
TAN Ye hui, YANG Feng, LEI Yan zhi. Effects of ammonia-N, nitrate-N and effluents from abalone culture on growth of Haliotis discus hannai Ino. Journal of Dalian Ocean University, 2003, 18(3): 204-209.