The impact of anti-sea lice pesticides, azamethiphos and deltamethrin, on European lobster (Homarus gammarus) larvae in the Norwegian marine environment
Anti-sea lice pesticides, used in the salmonid aquaculture industry, are a growing environmental concern due to their potential to adversely affect non-target crustaceans. Azamethiphos and deltamethrin are two bath treatment pesticides used on salmon farms in Norway, however, limited information is...
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Online Access: | https://hdl.handle.net/11250/2682651 https://doi.org/10.1016/j.envpol.2020.114725 |
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ftimr:oai:imr.brage.unit.no:11250/2682651 2023-05-15T16:08:45+02:00 The impact of anti-sea lice pesticides, azamethiphos and deltamethrin, on European lobster (Homarus gammarus) larvae in the Norwegian marine environment Parsons, Aoife Elizabeth Escobar, Rosa Sævik, Pål Næverlid Samuelsen, Ole Bent Agnalt, Ann-Lisbeth 2020 application/pdf https://hdl.handle.net/11250/2682651 https://doi.org/10.1016/j.envpol.2020.114725 eng eng Havforskningsinstituttet: 14907 Environmental Pollution (1987). 2020, 264 1-11. urn:issn:0269-7491 https://hdl.handle.net/11250/2682651 https://doi.org/10.1016/j.envpol.2020.114725 cristin:1821316 1-11 264 Environmental Pollution (1987) Peer reviewed Journal article 2020 ftimr https://doi.org/10.1016/j.envpol.2020.114725 2021-09-23T20:15:03Z Anti-sea lice pesticides, used in the salmonid aquaculture industry, are a growing environmental concern due to their potential to adversely affect non-target crustaceans. Azamethiphos and deltamethrin are two bath treatment pesticides used on salmon farms in Norway, however, limited information is available on their impact on European lobster (Homarus gammarus) larvae in the Norwegian marine environment. Here, we firstly report the lethal (LC50) and effective (EC50) concentrations of azamethiphos and deltamethrin for stage I and stage II larvae, following 1-h exposures. Using a hydrodynamic model, we also modelled the dispersal of both compounds into the marine environment around selected Norwegian farms and mapped the potential impact zones (areas that experience LC50 and EC50 concentrations) around each farm. Our data shows that azamethiphos and deltamethrin are acutely toxic to both larval stages, with LC50 and EC50 values below the recommended treatment concentrations. We also show that the azamethiphos impact zones around farms were relatively small (mean area of 0.04–0.2 km2), however deltamethrin impact zones covered much larger areas (mean area of 21.1–39.0 km2). These findings suggest that deltamethrin poses a significant risk to European lobster in the Norwegian marine environment while the impact of azamethiphos may be less severe. publishedVersion Article in Journal/Newspaper European lobster Homarus gammarus Institute for Marine Research: Brage IMR Norway Environmental Pollution 264 114725 |
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Open Polar |
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Institute for Marine Research: Brage IMR |
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ftimr |
language |
English |
description |
Anti-sea lice pesticides, used in the salmonid aquaculture industry, are a growing environmental concern due to their potential to adversely affect non-target crustaceans. Azamethiphos and deltamethrin are two bath treatment pesticides used on salmon farms in Norway, however, limited information is available on their impact on European lobster (Homarus gammarus) larvae in the Norwegian marine environment. Here, we firstly report the lethal (LC50) and effective (EC50) concentrations of azamethiphos and deltamethrin for stage I and stage II larvae, following 1-h exposures. Using a hydrodynamic model, we also modelled the dispersal of both compounds into the marine environment around selected Norwegian farms and mapped the potential impact zones (areas that experience LC50 and EC50 concentrations) around each farm. Our data shows that azamethiphos and deltamethrin are acutely toxic to both larval stages, with LC50 and EC50 values below the recommended treatment concentrations. We also show that the azamethiphos impact zones around farms were relatively small (mean area of 0.04–0.2 km2), however deltamethrin impact zones covered much larger areas (mean area of 21.1–39.0 km2). These findings suggest that deltamethrin poses a significant risk to European lobster in the Norwegian marine environment while the impact of azamethiphos may be less severe. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Parsons, Aoife Elizabeth Escobar, Rosa Sævik, Pål Næverlid Samuelsen, Ole Bent Agnalt, Ann-Lisbeth |
spellingShingle |
Parsons, Aoife Elizabeth Escobar, Rosa Sævik, Pål Næverlid Samuelsen, Ole Bent Agnalt, Ann-Lisbeth The impact of anti-sea lice pesticides, azamethiphos and deltamethrin, on European lobster (Homarus gammarus) larvae in the Norwegian marine environment |
author_facet |
Parsons, Aoife Elizabeth Escobar, Rosa Sævik, Pål Næverlid Samuelsen, Ole Bent Agnalt, Ann-Lisbeth |
author_sort |
Parsons, Aoife Elizabeth |
title |
The impact of anti-sea lice pesticides, azamethiphos and deltamethrin, on European lobster (Homarus gammarus) larvae in the Norwegian marine environment |
title_short |
The impact of anti-sea lice pesticides, azamethiphos and deltamethrin, on European lobster (Homarus gammarus) larvae in the Norwegian marine environment |
title_full |
The impact of anti-sea lice pesticides, azamethiphos and deltamethrin, on European lobster (Homarus gammarus) larvae in the Norwegian marine environment |
title_fullStr |
The impact of anti-sea lice pesticides, azamethiphos and deltamethrin, on European lobster (Homarus gammarus) larvae in the Norwegian marine environment |
title_full_unstemmed |
The impact of anti-sea lice pesticides, azamethiphos and deltamethrin, on European lobster (Homarus gammarus) larvae in the Norwegian marine environment |
title_sort |
impact of anti-sea lice pesticides, azamethiphos and deltamethrin, on european lobster (homarus gammarus) larvae in the norwegian marine environment |
publishDate |
2020 |
url |
https://hdl.handle.net/11250/2682651 https://doi.org/10.1016/j.envpol.2020.114725 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
European lobster Homarus gammarus |
genre_facet |
European lobster Homarus gammarus |
op_source |
1-11 264 Environmental Pollution (1987) |
op_relation |
Havforskningsinstituttet: 14907 Environmental Pollution (1987). 2020, 264 1-11. urn:issn:0269-7491 https://hdl.handle.net/11250/2682651 https://doi.org/10.1016/j.envpol.2020.114725 cristin:1821316 |
op_doi |
https://doi.org/10.1016/j.envpol.2020.114725 |
container_title |
Environmental Pollution |
container_volume |
264 |
container_start_page |
114725 |
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1766404771013459968 |