Salinity does not alter the effectiveness of menthol as an anesthetic and sedative during the handling and transport of juvenile fat snook (Centropomus parallelus)

Abstract The effectiveness of menthol as anesthetic and sedative for fat snook (Centropomus parallelus) was tested at different salinities. In the first experiment, the fish were exposed to different concentrations of menthol (25, 37 and 50 mg L–1) in water at different salinities (0, 17 and 36 ppt)...

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Main Authors: L. C. O.’R. Sepulchro, M. A. G. Carvalho, L. C. Gomes
Format: Article
Language:English
Published: Instituto Internacional de Ecologia
Series:Brazilian Journal of Biology
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842016000300757&lng=en&tlng=en
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author L. C. O.’R. Sepulchro
M. A. G. Carvalho
L. C. Gomes
author_facet L. C. O.’R. Sepulchro
M. A. G. Carvalho
L. C. Gomes
author_sort L. C. O.’R. Sepulchro
collection DOAJ
description Abstract The effectiveness of menthol as anesthetic and sedative for fat snook (Centropomus parallelus) was tested at different salinities. In the first experiment, the fish were exposed to different concentrations of menthol (25, 37 and 50 mg L–1) in water at different salinities (0, 17 and 36 ppt). In the second experiment, the fish were transported for 10 hours in water with menthol at concentrations of 0, 3.7 and 7.4 mg L–1 under different salinities. Na+ and K+ ions from fish body and water were analyzed after transport. The optimal concentrations of menthol for a short handling period and surgical induction was 37 and 50 mg L–1, respectively, and these values were independent of salinity. After transport, neither mortality nor significant changes in ammonia or dissolved oxygen were observed between treatments at the different salinities. The nitrite levels were lower in freshwater than in brackish and saltwater, but did not change with mentol. The total body levels of Na+ increased with the salinity increase. Menthol is an effective anesthetic for handling of juvenile fat snook at different salinities. Menthol did not influence the measured water parameters and body ions, and it is not necessary for the transport of fat snook.
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spelling doaj.art-caa8198adc2746f3bf6b0b84e488756f2022-12-22T00:52:04ZengInstituto Internacional de EcologiaBrazilian Journal of Biology1678-437576375776310.1590/1519-6984.04115S1519-69842016000300757Salinity does not alter the effectiveness of menthol as an anesthetic and sedative during the handling and transport of juvenile fat snook (Centropomus parallelus)L. C. O.’R. SepulchroM. A. G. CarvalhoL. C. GomesAbstract The effectiveness of menthol as anesthetic and sedative for fat snook (Centropomus parallelus) was tested at different salinities. In the first experiment, the fish were exposed to different concentrations of menthol (25, 37 and 50 mg L–1) in water at different salinities (0, 17 and 36 ppt). In the second experiment, the fish were transported for 10 hours in water with menthol at concentrations of 0, 3.7 and 7.4 mg L–1 under different salinities. Na+ and K+ ions from fish body and water were analyzed after transport. The optimal concentrations of menthol for a short handling period and surgical induction was 37 and 50 mg L–1, respectively, and these values were independent of salinity. After transport, neither mortality nor significant changes in ammonia or dissolved oxygen were observed between treatments at the different salinities. The nitrite levels were lower in freshwater than in brackish and saltwater, but did not change with mentol. The total body levels of Na+ increased with the salinity increase. Menthol is an effective anesthetic for handling of juvenile fat snook at different salinities. Menthol did not influence the measured water parameters and body ions, and it is not necessary for the transport of fat snook.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842016000300757&lng=en&tlng=enanesthesiastressfishbody ionssedation
spellingShingle L. C. O.’R. Sepulchro
M. A. G. Carvalho
L. C. Gomes
Salinity does not alter the effectiveness of menthol as an anesthetic and sedative during the handling and transport of juvenile fat snook (Centropomus parallelus)
Brazilian Journal of Biology
anesthesia
stress
fish
body ions
sedation
title Salinity does not alter the effectiveness of menthol as an anesthetic and sedative during the handling and transport of juvenile fat snook (Centropomus parallelus)
title_full Salinity does not alter the effectiveness of menthol as an anesthetic and sedative during the handling and transport of juvenile fat snook (Centropomus parallelus)
title_fullStr Salinity does not alter the effectiveness of menthol as an anesthetic and sedative during the handling and transport of juvenile fat snook (Centropomus parallelus)
title_full_unstemmed Salinity does not alter the effectiveness of menthol as an anesthetic and sedative during the handling and transport of juvenile fat snook (Centropomus parallelus)
title_short Salinity does not alter the effectiveness of menthol as an anesthetic and sedative during the handling and transport of juvenile fat snook (Centropomus parallelus)
title_sort salinity does not alter the effectiveness of menthol as an anesthetic and sedative during the handling and transport of juvenile fat snook centropomus parallelus
topic anesthesia
stress
fish
body ions
sedation
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842016000300757&lng=en&tlng=en
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AT magcarvalho salinitydoesnotaltertheeffectivenessofmentholasananestheticandsedativeduringthehandlingandtransportofjuvenilefatsnookcentropomusparallelus
AT lcgomes salinitydoesnotaltertheeffectivenessofmentholasananestheticandsedativeduringthehandlingandtransportofjuvenilefatsnookcentropomusparallelus