| 象山港网箱养殖鲈鱼残饵和排粪情况初步研究 |
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| 引用本文： | 卓华龙,沈庞幼,吴雄飞,李家乐.象山港网箱养殖鲈鱼残饵和排粪情况初步研究[J].上海水产大学学报,2007,16(5):443-447. |
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| 作者姓名： | 卓华龙 沈庞幼 吴雄飞 李家乐 |
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| 作者单位： | [1]浙江省宁波市海洋与渔业研究院,浙江宁波315012 [2]上海水产大学省部共建水产种质资源发掘与利用教育部重点实验室,上海200090 |
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| 基金项目： | 浙江省宁波市科技局资助项目;上海市重点学科建设项目;上海市曙光跟踪项目 |
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| 摘 要： | 通过对象山港典型网箱养殖区,养殖鲈鱼投饵、摄食情况的研究,推算残饵和排粪情况。结果表明,鲈鱼年平均摄食率以饵料湿重计为2.6%,以饵料干重计为0.6%。全年投入象山港养殖网箱中的饵料以湿重计为143335.5 t,平均每天投392.7 t,以干重计为31 045.5 t,平均每天投85 t。鲈鱼的排粪率以颗粒有机碳POC干重计平均为6.5%,象山港网箱养殖鱼类每天排粪量干重为7.5 t,全年为2 737.5 t。鲈鱼对饵料的平均利用率为71.8%,全年网箱养鱼的残饵量湿重为43 252.5 t,每天平均118.5 t;以干重计为9 548.4 t,平均每天为26.16 t。显示残饵和排粪量对养殖区底质和水质污染比较严重。
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| 关 键 词： | 象山港 网箱 鲈鱼 摄食率 残饵 排粪 |
| 文章编号： | 1004-7271（2007）05-0443-05 |
| 修稿时间： | 2007-04-05 |
Preliminary calculations on residual feed and faeces of Lateo labrax japonicus cultured in the net cages in Xiangshan Bay |
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| ZHUO Hua-long,SHEN Pang-you,WU Xiong-fei,LI jia-le.Preliminary calculations on residual feed and faeces of Lateo labrax japonicus cultured in the net cages in Xiangshan Bay[J].Journal of Shanghai Fisheries University,2007,16(5):443-447. |
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| Authors: | ZHUO Hua-long SHEN Pang-you WU Xiong-fei LI jia-le |
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| Institution: | 1. Ningbo Ocean and Fisheries Academy, Ningbo 315012, China; 2. Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Shanghai Fisheries University, Ministry of Education, Shanghai 200090, China |
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| Abstract: | Residual feed and faeces were calculated according to the research on feeding rate and faeces rate of Japanese sea peach Lateo labrax japonicus cultured in the net cages in Xiangshan Bay.The result showed that the average feeding rate of Japanese sea peach was 2.6%(wet weight) or 0.6%(dry weight).The wet food scattered in the net cages was 143 335.5 tons a year,392.7 tons a day.The food(dry weight) that was scattered in the net cages was 31 045.5 tons a year,85 tons a day.The average excreting rate of sea peach(as dry particle organic carbon) was 6.5%.The calculated faeces quantity(dry weight) of the fish cultured in the net cages in Xiangshan Bay was 7.5 tons a day,2 737.5 tons a year.Average feed utility of Japanese sea perch was 71.8%.The wet residual feed was 43 252.5 tons a year,118.5 tons a day.The dry residual feed was 9 548.4 tons a year,26.16 tons a day.That showed the residual feed and faeces seriously polluted the quality of bottom and water in Xiangshan Bay. |
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| Keywords: | Xiangshan Bay net cage Lateo labrax japonicus feeding rate remnant feed faeces |
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