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Use of the sea urchin Hemicentrotus pulcherrimus for biological control of fouling in suspended scallop cultivation in Northern China

文献类型： 外文期刊

作者： Qi Zhanhui 1 ; Wang Jun 1 ; Mao Yuze 3 ; Zhang Jihong 3 ; Jiang Zengjie 3 ; Fang Jianguang 3 ;

作者机构： 1.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Key Lab South China Sea Fishery Resources Exploit, Minist Agr, Guangzhou 510300, Guangdong, Peoples R China

2.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Key Lab Fishery Ecol & Environm, Guangzhou 510300, Guangdong, Peoples R China

3.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao 266071, Peoples R China

关键词： Fouling;Biological control;Sea urchin;Hemicentrotus pulcherrimus;Scallops

期刊名称：AQUACULTURE （ 影响因子：4.242； 五年影响因子：4.723 ）

ISSN： 0044-8486

年卷期： 2014 年 420 卷

页码：

收录情况： SCI

摘要： Fouling organisms on scallop cultivation nets and shells are costly to remove and can reduce scallop growth. In the present study, we investigated the biological control efficiency of using the sea urchin Hemicentrotus pulcherrimus as a means of preventing fouling in suspended scallop cultivation of Chlamys farreri and Patinopecten yessoensis in Sanggou Bay, Northern China. Tests were carried out from June to September 2009, during the period of the heaviest fouling. The scallops were co-cultured in scallop lantern nets for 3 months. At the end of the experiment, all sea urchins were alive and the survival rates of scallops were very high. Scallop shell length and soft tissue growth were not significantly affected by sea urchins, but a greater growth in scallop soft tissue was associated with the presence of the sea urchin. Sea urchin had a minimal effect on the shell fouling of C. farreri, but noticeably reduced the weight of fouling on scallop nets and efficiently reduced fouling on the shell of P. yessoensis. Results suggest that the sea urchin was an effective biological control organism, especially for the shell fouling of P. yessoensis. This experiment indicated that biological control, using sea urchin, of fouling in suspended scallop cultivation has the potential to become an efficient and environmentally-sound method for addressing the problem of fouling in scallop cultivation. (C) 2013 Elsevier B.V. All rights reserved.

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