Sublethal effects of a new antifouling candidate on lumpfish (Cyclopterus lumpus L.) and Atlantic cod (Gadus morhua L.) larvae

被引:16
作者
Bellas, J
Hilvarsson, A
Granmo, Å
机构
[1] Univ Vigo, Dept Ecol & Biol Anim, Vigo 36310, Spain
[2] Gothenburg Univ, Dept Marine Ecol, Kristineberg Marine Res Stn, S-41124 Gothenburg, Sweden
关键词
Cyclopterus lumpus; Gadus morhua; antifouling; medetomidine; respiration; colour adaptation;
D O I
10.1080/08927010500285236
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
Sublethal effects of medetomidine, a new generation antifouling compound, on lumpfish ( Cyclopterus lumpus L.) and cod ( Gadus morhua L.) larvae were examined. The effects on respiration rate and on colour adaptation of newly hatched larvae were assessed after 24-96 h exposure. Exposure of lumpfish larvae to the experimental concentrations resulted in a significant decrease in respiration rate (Lowest Observed Effect Concentration (LOEC) = 5-10 nM) and in the percentage of dark larvae (LOEC = 4 nM). However, no effects on respiration rate of cod larvae were detected. In addition to lumpfish larvae being affected at low concentrations of medetomidine, a reversibility of the effects was observed when 96 h-exposed larvae were incubated in clean seawater for 24-48 h. Considerations relating to the future commercialisation of medetomidine for antifouling purposes are discussed.
引用
收藏
页码:207 / 216
页数:10
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