| 土池低盐度水体河蟹生态育苗试验 |
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| 引用本文： | 吴旭干,成永旭,南天佐,贺诗水,沈竑,刘必林.土池低盐度水体河蟹生态育苗试验[J].淡水渔业,2006,36(6):49-53. |
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| 作者姓名： | 吴旭干 成永旭 南天佐 贺诗水 沈竑 刘必林 |
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| 作者单位： | 上海水产大学,农业部水产种质资源与养殖生态重点开放实验室,上海,200090 |
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| 基金项目： | 上海市科委资助项目，上海市"曙光计划"，上海市重点学科建设项目 |
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| 摘 要： | 2003年3~5月,在上海崇明进行了河蟹(Eriocheirsinensis)在低盐度水体的土池中育苗实验,主要技术措施包括亲本的强化培育、施肥养水、敌害生物的控制和利用、活饵料的科学使用和水质调控等。结果表明:(1)亲本强化培育可以提高其生殖性能;(2)土池育苗中各期幼体的变态时间长于工厂化育苗,因而总的出苗时间比工厂化育苗长5~7d;(3)通过综合管理措施,在低盐度(9~12)条件下河蟹土池生态育苗单产和出苗率分别为(60·18±30·17)kg/hm2和(3·12±1·55)%,总的出苗时间为(25·2±1·9)d。
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| 关 键 词： | 河蟹(Eriocheirsinensis) 生态育苗 低盐度 土池 |
| 文章编号： | 1000-6907-(2006)06-0049-05 |
| 收稿时间： | 2006-04-24 |
| 修稿时间： | 2006年4月24日 |
The Study of Larval Breeding of Eriocheir sinensis by Ecological Way in Low Brackish Water Ponds |
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| WU Xu-gan,CHENG Yong-xu,NAN Tian-zuo,HE Shi-shui,SHEN Hong,LIU Bi-lin.The Study of Larval Breeding of Eriocheir sinensis by Ecological Way in Low Brackish Water Ponds[J].Freshwater Fisheries,2006,36(6):49-53. |
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| Authors: | WU Xu-gan CHENG Yong-xu NAN Tian-zuo HE Shi-shui SHEN Hong LIU Bi-lin |
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| Abstract: | During March to May in 2003,the experiment was conducted to breed larval Eriocheir sinensis in low brackish water(9~12)ponds by ecological way in Chongming island.The main technical measures include enriching broodstock,fertilizing before larval hatching,controlling harmful organism,using natural live food and adjusting water quality,et al.The results indicated that:(1) The reproductive performance could be improved by enriching broodstock crabs;(2) The duration of larval metamorphism in earth ponds was longer than those of indoor tanks;(3)Under the systemic management,the megalopa production,survival rate and duration from Z_ 1 to megalopa were (60.18±30.17)kg/hm~2,(3.12±1.55)% and(25.2±1.9) d respectively by ecological way in earth ponds with low salinity. |
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| Keywords: | Eriocheir sinensis larval breeding low brackish water earth pond |
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