Infrared Imagery and Inert Media Used in Treating Upwelling Groundwater with Rotenone
Abstract Untreated upwelling groundwater from seeps and springs in and adjacent to surface water bodies has been long suspected of causing failed rotenone treatments by providing a refugia of nontoxic water. A possible solution involves the use of an inert media to carry the liquid rotenone to the s...
Published in: | North American Journal of Fisheries Management |
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crwiley:10.1002/nafm.10234 2024-06-02T08:03:42+00:00 Infrared Imagery and Inert Media Used in Treating Upwelling Groundwater with Rotenone Haukebø, Trond Steinkjer, Jarle Finlayson, Brian 2018 http://dx.doi.org/10.1002/nafm.10234 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fnafm.10234 https://afspubs.onlinelibrary.wiley.com/doi/pdf/10.1002/nafm.10234 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor North American Journal of Fisheries Management volume 38, issue 6, page 1299-1305 ISSN 0275-5947 1548-8675 journal-article 2018 crwiley https://doi.org/10.1002/nafm.10234 2024-05-03T10:39:12Z Abstract Untreated upwelling groundwater from seeps and springs in and adjacent to surface water bodies has been long suspected of causing failed rotenone treatments by providing a refugia of nontoxic water. A possible solution involves the use of an inert media to carry the liquid rotenone to the source of upwelling groundwater and release rotenone over an extended period of time sufficient to affect the mortality of the target fish. In our initial study to address this problem, we used thermal infrared imagery ( FLIR One) on a smartphone to locate groundwater that was subsequently treated with mixtures of the liquid rotenone formulation CFT Legumine (3.3% rotenone) utilizing two commercially available inert carriers: (1) CatSan Hygiene Litter (mixture of quartz sand and calcite) and (2) Vectocarb (fine powder of modified Ca CO 3 ). Trials on the mixtures were conducted in 2015 in upwelling groundwater areas of the Skibotn River drainage, Troms County, Norway, the site of previously failed eradication efforts. Following application, mean concentrations of 75.6 to 131 μg/L rotenone were present at 0.5 h in the pools and the brooks downstream of the upwelling groundwater that decreased and stabilized to 11.5 to 16.8 μg/L rotenone at 3 h. Both carriers have large surface areas (porosity) that transport (through sorption) the rotenone liquid to the source of upwelling groundwater and release (through desorption) concentrations of rotenone over at least 3 h. Both mixtures show promise in treating upwelling groundwater to eradicate fish from those areas and were used successfully in the 2016 retreatment of Skibotn River for the eradication of Atlantic Salmon Salmo salar infested with the ectoparasite Gyrodactylus salaris . Article in Journal/Newspaper Atlantic salmon Salmo salar Skibotn Troms Wiley Online Library Norway North American Journal of Fisheries Management 38 6 1299 1305 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Untreated upwelling groundwater from seeps and springs in and adjacent to surface water bodies has been long suspected of causing failed rotenone treatments by providing a refugia of nontoxic water. A possible solution involves the use of an inert media to carry the liquid rotenone to the source of upwelling groundwater and release rotenone over an extended period of time sufficient to affect the mortality of the target fish. In our initial study to address this problem, we used thermal infrared imagery ( FLIR One) on a smartphone to locate groundwater that was subsequently treated with mixtures of the liquid rotenone formulation CFT Legumine (3.3% rotenone) utilizing two commercially available inert carriers: (1) CatSan Hygiene Litter (mixture of quartz sand and calcite) and (2) Vectocarb (fine powder of modified Ca CO 3 ). Trials on the mixtures were conducted in 2015 in upwelling groundwater areas of the Skibotn River drainage, Troms County, Norway, the site of previously failed eradication efforts. Following application, mean concentrations of 75.6 to 131 μg/L rotenone were present at 0.5 h in the pools and the brooks downstream of the upwelling groundwater that decreased and stabilized to 11.5 to 16.8 μg/L rotenone at 3 h. Both carriers have large surface areas (porosity) that transport (through sorption) the rotenone liquid to the source of upwelling groundwater and release (through desorption) concentrations of rotenone over at least 3 h. Both mixtures show promise in treating upwelling groundwater to eradicate fish from those areas and were used successfully in the 2016 retreatment of Skibotn River for the eradication of Atlantic Salmon Salmo salar infested with the ectoparasite Gyrodactylus salaris . |
format |
Article in Journal/Newspaper |
author |
Haukebø, Trond Steinkjer, Jarle Finlayson, Brian |
spellingShingle |
Haukebø, Trond Steinkjer, Jarle Finlayson, Brian Infrared Imagery and Inert Media Used in Treating Upwelling Groundwater with Rotenone |
author_facet |
Haukebø, Trond Steinkjer, Jarle Finlayson, Brian |
author_sort |
Haukebø, Trond |
title |
Infrared Imagery and Inert Media Used in Treating Upwelling Groundwater with Rotenone |
title_short |
Infrared Imagery and Inert Media Used in Treating Upwelling Groundwater with Rotenone |
title_full |
Infrared Imagery and Inert Media Used in Treating Upwelling Groundwater with Rotenone |
title_fullStr |
Infrared Imagery and Inert Media Used in Treating Upwelling Groundwater with Rotenone |
title_full_unstemmed |
Infrared Imagery and Inert Media Used in Treating Upwelling Groundwater with Rotenone |
title_sort |
infrared imagery and inert media used in treating upwelling groundwater with rotenone |
publisher |
Wiley |
publishDate |
2018 |
url |
http://dx.doi.org/10.1002/nafm.10234 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fnafm.10234 https://afspubs.onlinelibrary.wiley.com/doi/pdf/10.1002/nafm.10234 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Atlantic salmon Salmo salar Skibotn Troms |
genre_facet |
Atlantic salmon Salmo salar Skibotn Troms |
op_source |
North American Journal of Fisheries Management volume 38, issue 6, page 1299-1305 ISSN 0275-5947 1548-8675 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/nafm.10234 |
container_title |
North American Journal of Fisheries Management |
container_volume |
38 |
container_issue |
6 |
container_start_page |
1299 |
op_container_end_page |
1305 |
_version_ |
1800748307034669056 |