English  |  正體中文  |  简体中文  |  Items with full text/Total items : 26988/38789
Visitors : 2349655      Online Users : 31
RC Version 4.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Adv. Search
LoginUploadHelpAboutAdminister

Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/44647

Title: Effects of temperature on the toxicity of masoten to larval black sea bream, Acanthopagrus schlegeli
Authors: Chang, C.F.;Su, M.S.;Liao, I C
Keywords: Temperature;Toxicity;Masoten;Black Sea Bream
Date: 1993
Issue Date: 2017-11-24T02:47:56Z
Publisher: Journal of Taiwan Fisheries research
Abstract: Abstract:
Heavy mortalities of black sea bream have occurred from time to time during or after a routine organophosphate (mainly Masoten) treatment against ectoparasites. The purpose of this study was to determine the effects of temperature on the toxicity of Masoten to black sea bream to avoid mass fish kills due to overdosage. A total of 810 larval black sea bream, Acanthopagrus schlegeli, with a mean weight of 0.78 g were divided into 9 experimental groups and each treatment was triplicated. Each experimental group was randomly assigned to a 3 temperatures (22, 26 and 30°C) x 9 Masoten concentrations (0, 0.12, 0.21, 0.36, 0.62, 1.07, 1.85, 3.2 and 5.54 ppm) factorial design. Fish surviving 24—h and 48—h after exposure were studied. The results showed that the toxicity of Masoten to the larval fish increased significantly (p<0.0001) with increasing water temperature. The 24—h TLm of the larvae to Masoten was 2.34 ppm at a water temperature of 22°C, 1.43 ppm at 26°C and 0.57 ppm at 30°C. Their 48—h TLm were 1.31 ppm (22°C), 0.80 ppm (26°C) and 0.43 ppm (30°C). Both 24—h and 48—h TLm increased 3~4 fold when the water temperature was increased from 22 to 30°C.
Relation: 1(2), pp.31-37
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/44647
Appears in Collections:[廖一久院士專區] 期刊論文

Files in This Item:

There are no files associated with this item.



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