| SUMMARY OF STUDIES ON CLOSED-POLYCULTURE OF PENAEID SHRIMP WITH FISHES AND MOLUSCANS |
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| 作者姓名： | 李德尚 董双林 |
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| 作者单位： | Ocean University of Qingdao，Oingdao 266003，China |
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| 基金项目： | Project3 94 3 0 1 50supportedbyNSFC .WorkalsosupportedbytheNationalKeyProgramfortheNinth Five Year PlanunderGrantNo.96 92 2 |
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| 摘 要： | ＩＮＴＲＯＤＵＣＴＩＯＮＴｈｅｗｏｒｌｄ’ｓｓｈｒｉｍｐｃｕｌｔｕｒｅｉｎｄｕｓｔｒｙｈａｓｂｅｅｎｓｕｆｆｅｒｉｎｇｆｒｏｍｖｉｒａｌｅｐｉｄｅｍｉｃｄｉｓｅａｓｅｓａｎｄｆｅｌｌｉｎｔｏａｄｉｆ ｆｉｃｕｌｔｐｏｓｉｔｉｏｎｆｏｒｙｅａｒｓ.Ｉｔｉｓｇｅｎｅｒａｌｌｙａｃｃｅｐｔｅｄｔｏｄａｙｔｈａｔｔｈｅｄｉｓｅａｓｅｓｗｅｒｅｃａｕｓｅｄｍａｉｎｌｙｂｙｗａｔｅｒｐｏｌｌｕ ｔｉｏｎｃｒｅａｔｅｄｂｙｓｈｒｉｍｐｃｕｌｔｕｒｅｉｔｓｅｌｆ,ｂｏｔｈｉｎｓｈｒｉｍｐｐｏｎｄｓａｎｄｉｎｃｏａｓ…
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| 收稿时间： | 7 December 1998 |
| 修稿时间： | 18 June 1999 |
Summary of studies on closed-polyculture of penaeid shrimp with fishes and moluscans |
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| Li De-shang,Dong Shuang-lin.SUMMARY OF STUDIES ON CLOSED-POLYCULTURE OF PENAEID SHRIMP WITH FISHES AND MOLUSCANS[J].Chinese Journal of Oceanology and Limnology,2000,18(1):61-66. |
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| Authors: | Li De-shang Dong Shuang-lin |
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| Institution: | (1) Ocean University of Qingdao, 266003 Qingdao, China |
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| Abstract: | Closed-polyculture of Chinese penaeid shrimp, Taiwan red tilapia, and molluscans(constricted tagelus and bay scallop) was
studied from 1995 to 1997 with the enclosure-experiment method, on a shrimp farm in Haiyang County, Shandong Province. Four
structure-optimized closed-polyculture systems, i. e., the “shrimp-tagelus” system, the “shrimp-scallop” system, the “shrimp-tilapia”
system and the “shrimp-tilapia-tagelus” system, were worked out. All these polyculture systems were superior to shrimp monoculture
system in economic and ecological efficiencies. The order of these polyculture systems in efficiencies was “shrimptilapia-tagelus”
> “shrimp-tagelus”>“shrimp-tilapia”>“shrimp-scallop”. The “shrimp-tilapia-tagelus” system raised the production by 28% and
the utilization efficiency of input nitrogen by 85%. These closed-polyculture systems reduced the nitrogen discharge ratio
to 6%–8%, instead of 40%–90% in the usual open culture systems. The ecological features of the systems were also investigated
and many meaningful results have been obtained. The mechanism enhancing the efficiencies of these systems, the ways to enhance
the efficiencies further and those to reuse the sedimented materials are disscussed.
Project 39430150 supported by NSFC. Work also supported by the National Key Program for the Ninth-Five-Year-Plan under Grant
No. 96-922-02-02 and the National Climbing Program B under Grant No. PD-B6-7-3. |
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| Keywords: | closed polyculture penaeid shrimp tilapia scallop |
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