National Taiwan Ocean University Institutional Repository:Item 987654321/39643
English  |  正體中文  |  简体中文  |  全文笔数/总笔数 : 26988/38789
造访人次 : 2323615      在线人数 : 53
RC Version 4.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
搜寻范围 进阶搜寻

jsp.display-item.identifier=請使用永久網址來引用或連結此文件: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/39643

题名: The time-course change of nitrogenous excretion in the Kuruma shrimp Penaeus japonicus following nitrite exposure
作者: Sha-Yen Cheng;Jiann-Chu Chen
贡献者: 國立臺灣海洋大學:環境生物與漁業科學學系
关键词: Penaeus japonicus;Nitrite;Ammonia-N excretion;Urea-N excretion;Organic-N excretion;Hemolymph ammonia;Hemolymph urea
日期: 2001-02
上传时间: 2016-12-26T06:30:16Z
出版者: Aquatic Toxicology
摘要: Abstract:Penaeus japonicus (12.83±1.24 g) which were exposed individually to 0.002 (control), 0.076, 0.362, 0.719 and 1.433 mM nitrite at 30 ppt of salinity were examined for hemolymph ammonia, urea and nitrite, and nitrogenous excretion after 3, 6, 12, 24 and 48 h, respectively. Hemolymph nitrite and hemolymph urea increased directly with ambient nitrite and exposure time, whereas hemolymph ammonia was inversely related to ambient nitrite and exposure time. Specific excretions of total-N (total nitrogen), ammonia-N, urea-N and organic-N (organic nitrogen) increased directly with ambient nitrite and exposure time. The contribution of ammonia-N excretion and urea-N excretion in the total-N excreted by the control shrimp was 41.7–90.8 and 2.8–10.5%, respectively. The contribution of ammonia-N in the total-N excreted by P. japonicus decreased to 10.0 and 3.8%, when they were exposed for 24 h to 0.076 and 1.433 mM nitrite, respectively. The contribution of urea-N excretion increased to 58.7 and 21.4%, and the organic-N excretion increased to 31.3 and 74.8% in the total-N excreted by the shrimp following 24 h exposure to 0.076 and 1.433 mM nitrite, respectively. It was concluded that P. japonicus following 24 h exposure to nitrite as low as 0.076 mM increased its ammonia-N excretion by a factor of 1.9, its urea-N excretion by 200, and its organic-N excretion by 37, as compared to those in the control solution.
關聯: 51(4), pp.443-454
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/39643
显示于类别:[環境生物與漁業科學學系] 期刊論文

文件中的档案:

档案 描述 大小格式浏览次数
1-s2.0-S0166445X00001223-main.pdf219KbAdobe PDF56检视/开启


在NTOUR中所有的数据项都受到原著作权保护.

 


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 ©   - 回馈