期刊
AQUACULTURE RESEARCH
卷 46, 期 4, 页码 928-936出版社
WILEY-BLACKWELL
DOI: 10.1111/are.12249
关键词
Siganus rivulatus; rabbitfish; anaesthesia; MS-222; 2-phenoxyethanol; clove oil; benzocaine
类别
资金
- Lebanese National Council for Scientific Research
- research board of the American University of Beirut
The effects of four anaesthetic agents, tricaine methanesulphonate (MS-222) (112.5mgL(-1)), 2-phenoxyethanol (400LL(-1)), clove oil (70mgL(-1)) and benzocaine (65mgL(-1)) on juvenile marbled spinefoot (Siganus rivulatus) of three mean body weights (7.3g, 19.1g, 55.5g) and at three temperatures (20, 25, 30 degrees C) were evaluated. In addition, the relationship between body lipid content and efficacy of the four anaesthetic agents was evaluated in juvenile S. rivulatus. Times necessary for induction and recovery were recorded. Significant effects of temperature on induction and recovery times were observed. Induction and recovery times decreased with increasing water temperature. No uniform relationship between body weight of juvenile marbled spinefoot and anaesthetic efficacy was observed. Body fat content was positively correlated with induction time only when MS-222 was used but did not affect induction times of fish exposed to 2-phenoxyethanol, clove oil or benzocaine. Recovery times were generally longer for all fish containing more body fat. Results of the study show that anaesthetic efficiency increases with increasing water temperature but is not strongly affected by body weight for juvenile marbled spinefoot. In addition, body fat in fish affected the efficacy of the various anaesthetic agents tested in this study, generally slowing down recovery.
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