National Taiwan Ocean University Institutional Repository:Item 987654321/39639
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题名: Study on the oxyhemocyanin, deoxyhemocyanin, oxygen affinity and acid–base balance of Marsupenaeus japonicus following exposure to combined elevated nitrite and nitrate
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: Marsupenaeus japonicus;Nitrite;Nitrate;Joint action;Hemocyanin;Hemocyanin affinity;Acid–base balance
日期: 2002-12
上传时间: 2016-12-26T06:01:27Z
出版者: Aquatic Toxicology
摘要: Abstract:Marsupenaeus japonicus (11.47±0.71 g) exposed individually to six different nitrite and nitrate regimes {(0.002 (control), 0.359 and 1.456 mM nitrite combined with 0.005 (control) and 7.458 mM nitrate)} in salinity of 30 ppt (parts per thousand) were examined for hemocyanin oxygen affinity, the fractionation of oxyhemocyanin and deoxyhemocyanin, and the acid–base balance after 24 h. Ambient nitrite at concentration of 0.359 mM caused reduction of oxyhemocyanin and protein by 27 and 11%, respectively, whereas ambient nitrate as high as 7.458 mM caused reduction of oxyhemocyanin and protein by 10 and 7%. Ambient nitrite at concentration of 1.456 mM caused increases of P50 (indicating reduced oxygen affinity) and pO2, but caused reduction in hemolymph pCO2, pH, HCO3− and TCO2. Following exposure to combined solutions of 1.456 mM nitrite and 7.458 mM nitrate there were no further changes in oxyhemocyanin, protein, hemolymph P50, pO2, pCO2, HCO3− and TCO2, but there was a significant reduction of pH.
關聯: 61(3-4), pp.181-193
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/39639
显示于类别:[環境生物與漁業科學學系] 期刊論文

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