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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/39634

Title: Acute Toxicity of Residual Chlorine on the White Shrimp Litopenaeus Vannamei Juveniles at Different Salinity Levels
不同鹽度下殘留氯對白蝦Litopenaeus vannamei幼蝦之急性毒性
Authors: 鄭學淵(Sha-Yen Cheng)
Fabiola-Victoria Arce Núñez
陳建初(Jiann-Chu Chen)
Contributors: 國立臺灣海洋大學:環境生物與漁業科學學系
Keywords: Residual chlorine;Litopenaeus vannamei;Salinity;Acute toxicity
Date: 2013-09
Issue Date: 2016-12-26T01:30:51Z
Publisher: 臺灣水產學會刊
Abstract: Abstract:White shrimp Litopenaeus vannamei juveniles (body weight 1.15 ± 0.21 g) were exposed to different concentrations of residual chlorine at different salinity levels (15 per mille, 25 per mille and 35 per mille) using the static renewal method. The 24-, 48-, 72-, 96-, 120-, and 144-h LC_(50) (median lethal concentration) of residual chlorine on L. vannamei juveniles were 4.07, 3.22, 2.83, 2.58, 2.44, and 2.44 mg/l at 15 per mille; 6.86, 6.16, 5.14, 4.86, 4.77, and 4.73 mg/l at 25 per mille; and 7.59, 6.95, 6.30, 5.81, 5.71, and 5.61 mg/l at 35%, respectively. As the salinity decreased from 35 per mille to 15 per mille, susceptibility of residual chlorine after 24-, 48-, 72-, 96- and 120-h increased by 186%, 216%, 223%, 225%, and 234%, respectively. The "safe level" for rearing L. vannamei juveniles was estimated to be 0.24, 0.48 and 0.57 mg/l at salinity 15 per mille, 25 per mille, and 35 per mille, respectively. The toxicity of residual chlorine on L. vannamei juveniles decreased with the increase of salinity level. The relationship among LC_(50) of residual chlorine (mg/l), salinity (S) and exposure time (T) is as follows: LC_(50) = 2.6608 + 0.1642S - 0.0214T (R^2 = 0.8355).
Relation: 40(3), pp.183-191
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/39634
Appears in Collections:[環境生物與漁業科學學系] 期刊論文

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