Measurement of Aquaculture Chemotherapeutants in Flocculent Matter Collected at a Hard-Bottom Dominated Finfish Site on the South Coast of Newfoundland (Canada) After 2 Years of Fallow
The expansion of aquaculture is resulting in sites being installed over a diversity of substrate types, leading to different potential chemotherapeutant degradation scenarios. There is little to no information on the biodegradation and/or persistence of chemotherapeutants at hard-bottom dominated aq...
Published in: | Frontiers in Marine Science |
---|---|
Main Authors: | , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Frontiers Media S.A.
2018
|
Subjects: | |
Online Access: | https://doi.org/10.3389/fmars.2018.00228 https://doaj.org/article/c239a5700ca94e748a39e67299514506 |
id |
ftdoajarticles:oai:doaj.org/article:c239a5700ca94e748a39e67299514506 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:c239a5700ca94e748a39e67299514506 2023-05-15T17:22:39+02:00 Measurement of Aquaculture Chemotherapeutants in Flocculent Matter Collected at a Hard-Bottom Dominated Finfish Site on the South Coast of Newfoundland (Canada) After 2 Years of Fallow Dounia Hamoutene Flora Salvo Stefana N. Egli Ali Modir-Rousta Robyn Knight Geoff Perry Christina S. Bottaro Suzanne C. Dufour 2018-07-01T00:00:00Z https://doi.org/10.3389/fmars.2018.00228 https://doaj.org/article/c239a5700ca94e748a39e67299514506 EN eng Frontiers Media S.A. https://www.frontiersin.org/article/10.3389/fmars.2018.00228/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2018.00228 https://doaj.org/article/c239a5700ca94e748a39e67299514506 Frontiers in Marine Science, Vol 5 (2018) salmon aquaculture chemotherapeutant flocculent matter hard-bottom substrate organic matter Science Q General. Including nature conservation geographical distribution QH1-199.5 article 2018 ftdoajarticles https://doi.org/10.3389/fmars.2018.00228 2022-12-31T12:16:00Z The expansion of aquaculture is resulting in sites being installed over a diversity of substrate types, leading to different potential chemotherapeutant degradation scenarios. There is little to no information on the biodegradation and/or persistence of chemotherapeutants at hard-bottom dominated aquaculture sites having little natural sediment. In this study, we measured organic matter (OM) content and concentrations of chemicals linked to finfish aquaculture activities (trace elements, antibiotics and parasiticides) in flocculent matter samples collected close to cages at a site fallowed for 2 years and at an active site, the latter being indicative of flocculent chemical signature during production. Our results show persistence of flocculent matter after 2 years of fallow. The chemical signature of the samples confirms that Cu, Zn, Ca, and P, present around fish cages, are direct markers of aquaculture wastes. Persistence of two pyrethroids, one avermectin, and one antibiotic in grab samples show a potentially lasting association between these chemicals and the OM from fish feed and wastes, even after 2 years. Overall, the concentrations measured do not indicate a direct lethal toxicity on marine organisms (as per studies described in literature) except for Zn. Nevertheless, the long-term persistence of a flocculent mixture rich in chemicals and the lack of information on sublethal and synergistic effects on hard-bottom communities calls for caution and additional studies. Article in Journal/Newspaper Newfoundland Directory of Open Access Journals: DOAJ Articles Canada Frontiers in Marine Science 5 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
salmon aquaculture chemotherapeutant flocculent matter hard-bottom substrate organic matter Science Q General. Including nature conservation geographical distribution QH1-199.5 |
spellingShingle |
salmon aquaculture chemotherapeutant flocculent matter hard-bottom substrate organic matter Science Q General. Including nature conservation geographical distribution QH1-199.5 Dounia Hamoutene Flora Salvo Stefana N. Egli Ali Modir-Rousta Robyn Knight Geoff Perry Christina S. Bottaro Suzanne C. Dufour Measurement of Aquaculture Chemotherapeutants in Flocculent Matter Collected at a Hard-Bottom Dominated Finfish Site on the South Coast of Newfoundland (Canada) After 2 Years of Fallow |
topic_facet |
salmon aquaculture chemotherapeutant flocculent matter hard-bottom substrate organic matter Science Q General. Including nature conservation geographical distribution QH1-199.5 |
description |
The expansion of aquaculture is resulting in sites being installed over a diversity of substrate types, leading to different potential chemotherapeutant degradation scenarios. There is little to no information on the biodegradation and/or persistence of chemotherapeutants at hard-bottom dominated aquaculture sites having little natural sediment. In this study, we measured organic matter (OM) content and concentrations of chemicals linked to finfish aquaculture activities (trace elements, antibiotics and parasiticides) in flocculent matter samples collected close to cages at a site fallowed for 2 years and at an active site, the latter being indicative of flocculent chemical signature during production. Our results show persistence of flocculent matter after 2 years of fallow. The chemical signature of the samples confirms that Cu, Zn, Ca, and P, present around fish cages, are direct markers of aquaculture wastes. Persistence of two pyrethroids, one avermectin, and one antibiotic in grab samples show a potentially lasting association between these chemicals and the OM from fish feed and wastes, even after 2 years. Overall, the concentrations measured do not indicate a direct lethal toxicity on marine organisms (as per studies described in literature) except for Zn. Nevertheless, the long-term persistence of a flocculent mixture rich in chemicals and the lack of information on sublethal and synergistic effects on hard-bottom communities calls for caution and additional studies. |
format |
Article in Journal/Newspaper |
author |
Dounia Hamoutene Flora Salvo Stefana N. Egli Ali Modir-Rousta Robyn Knight Geoff Perry Christina S. Bottaro Suzanne C. Dufour |
author_facet |
Dounia Hamoutene Flora Salvo Stefana N. Egli Ali Modir-Rousta Robyn Knight Geoff Perry Christina S. Bottaro Suzanne C. Dufour |
author_sort |
Dounia Hamoutene |
title |
Measurement of Aquaculture Chemotherapeutants in Flocculent Matter Collected at a Hard-Bottom Dominated Finfish Site on the South Coast of Newfoundland (Canada) After 2 Years of Fallow |
title_short |
Measurement of Aquaculture Chemotherapeutants in Flocculent Matter Collected at a Hard-Bottom Dominated Finfish Site on the South Coast of Newfoundland (Canada) After 2 Years of Fallow |
title_full |
Measurement of Aquaculture Chemotherapeutants in Flocculent Matter Collected at a Hard-Bottom Dominated Finfish Site on the South Coast of Newfoundland (Canada) After 2 Years of Fallow |
title_fullStr |
Measurement of Aquaculture Chemotherapeutants in Flocculent Matter Collected at a Hard-Bottom Dominated Finfish Site on the South Coast of Newfoundland (Canada) After 2 Years of Fallow |
title_full_unstemmed |
Measurement of Aquaculture Chemotherapeutants in Flocculent Matter Collected at a Hard-Bottom Dominated Finfish Site on the South Coast of Newfoundland (Canada) After 2 Years of Fallow |
title_sort |
measurement of aquaculture chemotherapeutants in flocculent matter collected at a hard-bottom dominated finfish site on the south coast of newfoundland (canada) after 2 years of fallow |
publisher |
Frontiers Media S.A. |
publishDate |
2018 |
url |
https://doi.org/10.3389/fmars.2018.00228 https://doaj.org/article/c239a5700ca94e748a39e67299514506 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_source |
Frontiers in Marine Science, Vol 5 (2018) |
op_relation |
https://www.frontiersin.org/article/10.3389/fmars.2018.00228/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2018.00228 https://doaj.org/article/c239a5700ca94e748a39e67299514506 |
op_doi |
https://doi.org/10.3389/fmars.2018.00228 |
container_title |
Frontiers in Marine Science |
container_volume |
5 |
_version_ |
1766109448498053120 |