摘要
为充分挖掘河蟹养殖池塘潜能和利用养殖水体空间,增加单位面积内的经济效益,在崇明地区传统河蟹养殖模式的基础上,开展不同密度的罗氏沼虾混养试验。结果表明:在河蟹蟹种放养量为250 kg/hm^(2)时,罗氏沼虾放养1.8万尾/hm^(2)较为适宜,罗氏沼虾销售价格为200元/kg,总产值比放养2.4万尾/hm^(2)高出5.985万元/hm^(2),较未混养罗氏沼虾的河蟹精养池塘增加6.195万元/hm^(2)。
To fully tap into the potential of Chinese mitten crab(Eriocheir sinensis)ponds and utilize the space in water bodies,thereby increasing economic benefits per unit area,a mixed cultivation experiment was conducted in Chongming,Shanghai,involving different densities of giant freshwater prawn(Macrobrachium rosenbergii)alongside the traditional E.sinensis farming model.The results indicated that,under the condition of stocking 250 kg/hm² of E.sinensis,the optimal stocking density for M.rosenbergii was 18000 ind./hm².With a selling price of 200 yuan/kg for M.rosenbergii,the total output value was 59850 yuan/hm²higher compared to stocking 24000 ind./hm².This represented an additional 61950 yuan/hm²compared to monoculture of E.sinensis.
作者
朱丽艳
周捷
ZHU Liyan;ZHOU Jie(Shanghai Chongming Fisheries Technical Extension Station,Shanghai 202150,China)
出处
《河北渔业》
2024年第7期39-41,46,共4页
基金
崇明区农业科创项目(2022CNKC-02-01)。
