A noninvasive monitoring device for anesthetics in fish

noninvasive monitoring device for anesthetics in fish Original Research (4008) Total Article Views Authors: Deborah M Power, Juan Fuentes, Adrian P Harrison Published Date June 2010 Volume 2010:2 Pages 17 - 23 DOI: http://dx.doi.org/10.2147/OAAP.S11344 Deborah M Power1, Juan Fuentes1, Adrian P Harrison2 1Centro de Ciências do Mar, Universidade doe Ailgarvme, Portugal; 2Section for Physiology & Biochemistry, IBHV, Faculty of Life Sciences, Copenhagen University, Denmark Abstract: A noninvasive device capable of recording both gill and lateral fin movements was assembled and used to analyze initial and post-treatment activity frequency (Hz) in fish exposed to anesthetics. Exposure of platy fish (Xiphosphorus maculatus) to saponins from quillaja bark (0.185 mM and 0.555 mM) initially caused hyperactivity, but within five minutes all activity ceased and the fish failed to recover. In contrast, clove oil (67 μg/L) added to water at 22oC reduced activity by 22.8% ± 8.9% (P = 0.038) after 125 ± 19 sec, a sedative effect that was totally reversible. Cinnamon oil compared with clove oil had a significantly longer time to sedation (125 ± 19 versus 235 ± 24 sec, P = 0.02), although no significant difference in the decline in activity was noted.