Physical constraints of bath treatments of Atlantic salmon (Salmo salar) with a sea lice burden (Copepoda: Caligidae)
Licensed medicines available in the U.K. for treating Atlantic salmon infested with sea lice, dichlorvos, azamethiphos, and hydrogen peroxide, can only be administered by bath application. Adverse reactions have been reported to bath treatments including mortalities, inappetance, reduction in growth...
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ftnaturalis:oai:naturalis:534338 2023-05-15T15:30:21+02:00 Physical constraints of bath treatments of Atlantic salmon (Salmo salar) with a sea lice burden (Copepoda: Caligidae) Treasurer, James W. Grant, Andrew Davis, Paul J. 2000 application/pdf http://www.repository.naturalis.nl/record/534338 http://www.repository.naturalis.nl/document/571902 unknown http://www.repository.naturalis.nl/record/534338 http://www.repository.naturalis.nl/document/571902 (c) Naturalis Contributions to Zoology (1383-4517) vol.69 (2000) nr.1/2 p.129 sea lice Atlantic salmon salar bath application dichlorvos hydrogen peroxide Article / Letter to the editor 2000 ftnaturalis 2022-09-01T06:15:55Z Licensed medicines available in the U.K. for treating Atlantic salmon infested with sea lice, dichlorvos, azamethiphos, and hydrogen peroxide, can only be administered by bath application. Adverse reactions have been reported to bath treatments including mortalities, inappetance, reduction in growth and reduced louse sensitivity to dichlorvos. The physical constraints of bath treatments are examined and improvements recommended. Oxygen saturation was adequate during treatments but declined rapidly when the tarpaulin was removed. A chemical marker dispersed uniformally both horizontally and vertically in a cage within 5 mins of dispensing indicating dispersal of a medicine is rapid and adequate during treatment. The range in enclosed volumes in 86 treatments was 46 to 146% of theoretical, suggesting potential toxicity due to high concentrations at low volumes and the risk of reduced sensitivity at high volumes. Residual concentrations of hydrogen peroxide varied from 50 to 400 ppm from 5 to 15 mins after the tarpaulin was removed. Water exchange should be encouraged by aerating the cage and flushing at the end of treatment. Article in Journal/Newspaper Atlantic salmon Salmo salar Naturalis Digital Academic Repository (National Museum of Natural History in the Netherlands) |
institution |
Open Polar |
collection |
Naturalis Digital Academic Repository (National Museum of Natural History in the Netherlands) |
op_collection_id |
ftnaturalis |
language |
unknown |
topic |
sea lice Atlantic salmon salar bath application dichlorvos hydrogen peroxide |
spellingShingle |
sea lice Atlantic salmon salar bath application dichlorvos hydrogen peroxide Treasurer, James W. Grant, Andrew Davis, Paul J. Physical constraints of bath treatments of Atlantic salmon (Salmo salar) with a sea lice burden (Copepoda: Caligidae) |
topic_facet |
sea lice Atlantic salmon salar bath application dichlorvos hydrogen peroxide |
description |
Licensed medicines available in the U.K. for treating Atlantic salmon infested with sea lice, dichlorvos, azamethiphos, and hydrogen peroxide, can only be administered by bath application. Adverse reactions have been reported to bath treatments including mortalities, inappetance, reduction in growth and reduced louse sensitivity to dichlorvos. The physical constraints of bath treatments are examined and improvements recommended. Oxygen saturation was adequate during treatments but declined rapidly when the tarpaulin was removed. A chemical marker dispersed uniformally both horizontally and vertically in a cage within 5 mins of dispensing indicating dispersal of a medicine is rapid and adequate during treatment. The range in enclosed volumes in 86 treatments was 46 to 146% of theoretical, suggesting potential toxicity due to high concentrations at low volumes and the risk of reduced sensitivity at high volumes. Residual concentrations of hydrogen peroxide varied from 50 to 400 ppm from 5 to 15 mins after the tarpaulin was removed. Water exchange should be encouraged by aerating the cage and flushing at the end of treatment. |
format |
Article in Journal/Newspaper |
author |
Treasurer, James W. Grant, Andrew Davis, Paul J. |
author_facet |
Treasurer, James W. Grant, Andrew Davis, Paul J. |
author_sort |
Treasurer, James W. |
title |
Physical constraints of bath treatments of Atlantic salmon (Salmo salar) with a sea lice burden (Copepoda: Caligidae) |
title_short |
Physical constraints of bath treatments of Atlantic salmon (Salmo salar) with a sea lice burden (Copepoda: Caligidae) |
title_full |
Physical constraints of bath treatments of Atlantic salmon (Salmo salar) with a sea lice burden (Copepoda: Caligidae) |
title_fullStr |
Physical constraints of bath treatments of Atlantic salmon (Salmo salar) with a sea lice burden (Copepoda: Caligidae) |
title_full_unstemmed |
Physical constraints of bath treatments of Atlantic salmon (Salmo salar) with a sea lice burden (Copepoda: Caligidae) |
title_sort |
physical constraints of bath treatments of atlantic salmon (salmo salar) with a sea lice burden (copepoda: caligidae) |
publishDate |
2000 |
url |
http://www.repository.naturalis.nl/record/534338 http://www.repository.naturalis.nl/document/571902 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Contributions to Zoology (1383-4517) vol.69 (2000) nr.1/2 p.129 |
op_relation |
http://www.repository.naturalis.nl/record/534338 http://www.repository.naturalis.nl/document/571902 |
op_rights |
(c) Naturalis |
_version_ |
1766360793574539264 |