Integrated biological control of water hyacinths, Eichhornia crassipes by a novel combination of grass carp, Ctenopharyngodon idella (Valenciennes, 1844), and the weevil, Neochetina spp.
文献类型：CNKI期刊论文
| 作者 | GOPALAKRISHNAN Ayyaru; RAJKUMAR Mayalagu; Sun J(孙军); PARIDA Ajay; VENMATHI MARAN Balu Alagar |
| 发表日期 | 2011-01-15 |
| 出处 | Chinese Journal of Oceanology and Limnology
 |
| 关键词 | water hyacinth grass carp weevil biological control |
| 英文摘要 | The efficacy of grass carp Ctenopharyngodon idella (Cyprinidae) and weevils Neochetina spp. (Curculionidae) to control the aquatic weed, water hyacinth, is investigated in a square net cage (happas) setting at a farm in Cuddalore District, South India. This novel combination of insects and fish is found to be superior to individual treatments for controlling the weed growth within 110 d. The biomass of the weed, number of plants, percentage of flowered plants and chlorophyll contents were studied. The weed biomass is reduced from 5 kg (day 1) to 0.33 kg (day 110) when exposed to grass carp and weevils. The number of plants is reduced to 0.75 in grass carp and weevil exposed happas, while it is 741.5 in the control. The mean number of leaves per plant is also reduced. In addition, the chlorophyll a and b are significantly reduced in happas exposed to the combination of fish and insects when compared to the other treatments. Based on the results of this study, we consider the combined use of grass carp and weevils to be more efficient and sustainable for managing water hyacinths than the use of these organisms individually. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | Supported by the Chinese Academy of Sciences Research Fellowship for International Young Researchers to M.Rajkumar hosted by J.SUN ; the Knowledge Innovation Project of the Chinese Academy of Sciences (Nos.KZCX2-YW-QN-205,KZCX2-YW-213-2) to J.SUN |
| 卷 | v.29期:01页:164-168 |
| 语种 | 英文; |
| 分类号 | S451 |
| ISSN号 | 0254-4059 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/191845]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.CentreofAdvancedStudyinMarineBiology,AnnamalaiUniversity 2.InstituteofOceanology,ChineseAcademyofSciences 3.M.S.SwaminathanResearchFoundation,ThirdCrossStreet,InstitutionalArea 4.TakeharaMarineScienceStation,GraduateSchoolofBiosphereScience,HiroshimaUniversity |
| 推荐引用方式 GB/T 7714 | GOPALAKRISHNAN Ayyaru,RAJKUMAR Mayalagu,Sun J,et al. Integrated biological control of water hyacinths, Eichhornia crassipes by a novel combination of grass carp, Ctenopharyngodon idella (Valenciennes, 1844), and the weevil, Neochetina spp.. 2011. |
入库方式： OAI收割
来源：海洋研究所
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