Dispersal and assimilation of an aquaculture waste subsidy in a low productivity coastal environment
To understand dispersal and assimilation of aquaculture waste subsidies in a naturally low-productivity environment, we applied a novel, rapid transmethylation technique to analyse sediment and biota fatty acid composition. This technique was initially validated at Atlantic salmon farms in Macquarie...
Published in: | Marine Pollution Bulletin |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
Pergamon-Elsevier Science Ltd
2017
|
Subjects: | |
Online Access: | https://eprints.utas.edu.au/26319/ https://doi.org/10.1016/j.marpolbul.2017.05.042 |
id |
ftunivtasmania:oai:eprints.utas.edu.au:26319 |
---|---|
record_format |
openpolar |
spelling |
ftunivtasmania:oai:eprints.utas.edu.au:26319 2023-05-15T15:32:13+02:00 Dispersal and assimilation of an aquaculture waste subsidy in a low productivity coastal environment White, CA Nichols, PD Ross, DJ Dempster, T 2017 https://eprints.utas.edu.au/26319/ https://doi.org/10.1016/j.marpolbul.2017.05.042 unknown Pergamon-Elsevier Science Ltd White, CA orcid:0000-0003-2061-6462 , Nichols, PD, Ross, DJ orcid:0000-0002-8659-3833 and Dempster, T 2017 , 'Dispersal and assimilation of an aquaculture waste subsidy in a low productivity coastal environment' , Marine Pollution Bulletin, vol. 120, no. 1-2 , pp. 309-321 , doi:10.1016/j.marpolbul.2017.05.042 <http://dx.doi.org/10.1016/j.marpolbul.2017.05.042>. aquaculture bacterial productivity biomarker salmon fatty acid Macquarie Harbour Article PeerReviewed 2017 ftunivtasmania https://doi.org/10.1016/j.marpolbul.2017.05.042 2021-09-06T22:17:55Z To understand dispersal and assimilation of aquaculture waste subsidies in a naturally low-productivity environment, we applied a novel, rapid transmethylation technique to analyse sediment and biota fatty acid composition. This technique was initially validated at Atlantic salmon farms in Macquarie Harbour, Australia, where sediments were collected at farm and control locations. Subsequently, sediment, benthic polychaete and zooplankton were sampled at sites 0, 50, 250, 500 and 1000 m distant from multiple cages. Results demonstrated an acute deposition zone up to 50 m from cages and a diffuse zone extending 500 m from cages. Changes in sediment concentration of linoleic acid, oleic acid and total fatty acids were effective tracers of farm deposition. Bacterial biomarkers indicated that aquaculture waste stimulates bacterial productivity in sediments, with elevated biomarker concentrations also detected in benthic polychaetes. Overall, fatty acid analysis was a sensitive technique to characterize the benthic footprint of aquaculture influence. Article in Journal/Newspaper Atlantic salmon University of Tasmania: UTas ePrints Marine Pollution Bulletin 120 1-2 309 321 |
institution |
Open Polar |
collection |
University of Tasmania: UTas ePrints |
op_collection_id |
ftunivtasmania |
language |
unknown |
topic |
aquaculture bacterial productivity biomarker salmon fatty acid Macquarie Harbour |
spellingShingle |
aquaculture bacterial productivity biomarker salmon fatty acid Macquarie Harbour White, CA Nichols, PD Ross, DJ Dempster, T Dispersal and assimilation of an aquaculture waste subsidy in a low productivity coastal environment |
topic_facet |
aquaculture bacterial productivity biomarker salmon fatty acid Macquarie Harbour |
description |
To understand dispersal and assimilation of aquaculture waste subsidies in a naturally low-productivity environment, we applied a novel, rapid transmethylation technique to analyse sediment and biota fatty acid composition. This technique was initially validated at Atlantic salmon farms in Macquarie Harbour, Australia, where sediments were collected at farm and control locations. Subsequently, sediment, benthic polychaete and zooplankton were sampled at sites 0, 50, 250, 500 and 1000 m distant from multiple cages. Results demonstrated an acute deposition zone up to 50 m from cages and a diffuse zone extending 500 m from cages. Changes in sediment concentration of linoleic acid, oleic acid and total fatty acids were effective tracers of farm deposition. Bacterial biomarkers indicated that aquaculture waste stimulates bacterial productivity in sediments, with elevated biomarker concentrations also detected in benthic polychaetes. Overall, fatty acid analysis was a sensitive technique to characterize the benthic footprint of aquaculture influence. |
format |
Article in Journal/Newspaper |
author |
White, CA Nichols, PD Ross, DJ Dempster, T |
author_facet |
White, CA Nichols, PD Ross, DJ Dempster, T |
author_sort |
White, CA |
title |
Dispersal and assimilation of an aquaculture waste subsidy in a low productivity coastal environment |
title_short |
Dispersal and assimilation of an aquaculture waste subsidy in a low productivity coastal environment |
title_full |
Dispersal and assimilation of an aquaculture waste subsidy in a low productivity coastal environment |
title_fullStr |
Dispersal and assimilation of an aquaculture waste subsidy in a low productivity coastal environment |
title_full_unstemmed |
Dispersal and assimilation of an aquaculture waste subsidy in a low productivity coastal environment |
title_sort |
dispersal and assimilation of an aquaculture waste subsidy in a low productivity coastal environment |
publisher |
Pergamon-Elsevier Science Ltd |
publishDate |
2017 |
url |
https://eprints.utas.edu.au/26319/ https://doi.org/10.1016/j.marpolbul.2017.05.042 |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_relation |
White, CA orcid:0000-0003-2061-6462 , Nichols, PD, Ross, DJ orcid:0000-0002-8659-3833 and Dempster, T 2017 , 'Dispersal and assimilation of an aquaculture waste subsidy in a low productivity coastal environment' , Marine Pollution Bulletin, vol. 120, no. 1-2 , pp. 309-321 , doi:10.1016/j.marpolbul.2017.05.042 <http://dx.doi.org/10.1016/j.marpolbul.2017.05.042>. |
op_doi |
https://doi.org/10.1016/j.marpolbul.2017.05.042 |
container_title |
Marine Pollution Bulletin |
container_volume |
120 |
container_issue |
1-2 |
container_start_page |
309 |
op_container_end_page |
321 |
_version_ |
1766362725719474176 |