English  |  正體中文  |  简体中文  |  Items with full text/Total items : 28611/40649
Visitors : 643890      Online Users : 45
RC Version 4.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Adv. Search

Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/44863

Title: Bio-efficacy potential of seaweed Gracilaria firma with copepod, Megacyclops formosanus for the control larvae of dengue vector Aedes aegypti
Authors: Kandasamy Kalimuthu;Show-Mei Lin;Li-Chun Tseng;Kadarkarai Murugan;Jiang-Shiou Hwang
Contributors: 國立臺灣海洋大學:海洋生物研究所
Keywords: Aedes aegypti;Gracilaria firma;Seaweed;Copepod;Mosquito control
Date: 2014-12
Issue Date: 2017-12-07T06:26:55Z
Publisher: Hydrobiologia
Abstract: Abstract:Mosquitoes are the most critical group of insects in the context of public health, because they transmit numerous diseases, causing millions of deaths annually. The frequent use of systemic insecticides to manage insect pests leads to the destabilization of ecosystems and enhanced resistance to insecticides by pests, suggesting a clear need for alternatives. Marine organisms are a rich source of structurally novel and biologically active metabolites, and cyclopoid copepods are prominent predators in many aquatic ecosystems and have been used as biological agents in successful programs to control mosquito larvae. In this study, we determine the effectiveness of the Taiwanese seaweed Gracilaria firma and different solvent extracts combined with the copepod Megacyclops formosanus for controlling Aedes aegypti. A significant larvicidal potential was recorded after seaweed extract treatment against the dengue vector A. aegypti. Larval mortality was observed after 24 h of exposure in laboratory. All extracts exhibited larvicidal effects; however, the highest larval mortality was observed in the methanol extract of G. firma against A. aegypti larvae (LC50 = 0.251%). The methanol extract of G. firma was more effective than the other extracts and is an ideal eco-friendly approach for the control larvae of the dengue vector A. aegypti.
Relation: 741(1), pp.113-123
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/44863
Appears in Collections:[海洋生物研究所] 期刊論文

Files in This Item:

File Description SizeFormat

All items in NTOUR are protected by copyright, with all rights reserved.


著作權政策宣告: 本網站之內容為國立臺灣海洋大學所收錄之機構典藏,無償提供學術研究與公眾教育等公益性使用,請合理使用本網站之內容,以尊重著作權人之權益。
網站維護: 海大圖資處 圖書系統組
DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback