Chemical composition and release rate of waste discharge from an Atlantic salmon farm with an evaluation of IMTA feasibility

The carbon (C), nitrogen (N) and phosphorus (P) compositions of salmon feed, fish and faeces were studied at a salmon farm in Badstuvika (63°31’N, 9°9’E) in central Norway. These data were used to estimate the release rates of wastes from 2 salmon cages and the qualities of particulate wastes as foo...

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Published in:Aquaculture Environment Interactions
Main Authors: X Wang, K Andresen, A Handå, B Jensen, KI Reitan, Y Olsen
Format: Article in Journal/Newspaper
Language:English
Published: Inter-Research 2013
Subjects:
Online Access:https://doi.org/10.3354/aei00079
https://doaj.org/article/55ade525e58e401a91eca695066ddf3a
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spelling ftdoajarticles:oai:doaj.org/article:55ade525e58e401a91eca695066ddf3a 2023-05-15T15:32:55+02:00 Chemical composition and release rate of waste discharge from an Atlantic salmon farm with an evaluation of IMTA feasibility X Wang K Andresen A Handå B Jensen KI Reitan Y Olsen 2013-07-01T00:00:00Z https://doi.org/10.3354/aei00079 https://doaj.org/article/55ade525e58e401a91eca695066ddf3a EN eng Inter-Research https://www.int-res.com/abstracts/aei/v4/n2/p147-162/ https://doaj.org/toc/1869-215X https://doaj.org/toc/1869-7534 1869-215X 1869-7534 doi:10.3354/aei00079 https://doaj.org/article/55ade525e58e401a91eca695066ddf3a Aquaculture Environment Interactions, Vol 4, Iss 2, Pp 147-162 (2013) Aquaculture. Fisheries. Angling SH1-691 Ecology QH540-549.5 article 2013 ftdoajarticles https://doi.org/10.3354/aei00079 2022-12-31T05:01:08Z The carbon (C), nitrogen (N) and phosphorus (P) compositions of salmon feed, fish and faeces were studied at a salmon farm in Badstuvika (63°31’N, 9°9’E) in central Norway. These data were used to estimate the release rates of wastes from 2 salmon cages and the qualities of particulate wastes as food resources for integrated multi-trophic aquaculture (IMTA). About 38% of feed C, 43% of feed N and 24% of feed P were retained as fish biomass. About 62% of feed C, 57% of feed N and 76% of feed P were lost into the environment. Around 40% of feed C was respired as CO2, and 39% of feed N and 24% of feed P were excreted as dissolved inorganic nitrogen and phosphorus, respectively. About 19% of feed C, 15% of feed N and 44% of feed P were released as particles. The chemical composition of feed was independent of time (p > 0.05). The faecal C content increased with increasing fish weight (r2 = 0.14, p < 0.05); however, other faecal chemical components showed no apparent relationships with fish weight (p > 0.05). Our results suggested that P digestibility of feed may be 30%, but more information is still needed to reach conclusions on this. The C content of faeces was 70% of that of feed and the N content of faeces was 50% of that of feed. The P content was far higher than that of feed. The lipid, docosahexaenoic acid and eicosapentaenoic acid contents of faeces were comparable to those of some phytoplankton species. The results suggested that both feed and faeces are adequate food for blue mussels and sea cucumbers co-cultured with salmon, and the nutrient content may meet their nutritional requirements. Article in Journal/Newspaper Atlantic salmon Directory of Open Access Journals: DOAJ Articles Norway Imta ENVELOPE(156.945,156.945,61.792,61.792) Aquaculture Environment Interactions 4 2 147 162
institution Open Polar
collection Directory of Open Access Journals: DOAJ Articles
op_collection_id ftdoajarticles
language English
topic Aquaculture. Fisheries. Angling
SH1-691
Ecology
QH540-549.5
spellingShingle Aquaculture. Fisheries. Angling
SH1-691
Ecology
QH540-549.5
X Wang
K Andresen
A Handå
B Jensen
KI Reitan
Y Olsen
Chemical composition and release rate of waste discharge from an Atlantic salmon farm with an evaluation of IMTA feasibility
topic_facet Aquaculture. Fisheries. Angling
SH1-691
Ecology
QH540-549.5
description The carbon (C), nitrogen (N) and phosphorus (P) compositions of salmon feed, fish and faeces were studied at a salmon farm in Badstuvika (63°31’N, 9°9’E) in central Norway. These data were used to estimate the release rates of wastes from 2 salmon cages and the qualities of particulate wastes as food resources for integrated multi-trophic aquaculture (IMTA). About 38% of feed C, 43% of feed N and 24% of feed P were retained as fish biomass. About 62% of feed C, 57% of feed N and 76% of feed P were lost into the environment. Around 40% of feed C was respired as CO2, and 39% of feed N and 24% of feed P were excreted as dissolved inorganic nitrogen and phosphorus, respectively. About 19% of feed C, 15% of feed N and 44% of feed P were released as particles. The chemical composition of feed was independent of time (p > 0.05). The faecal C content increased with increasing fish weight (r2 = 0.14, p < 0.05); however, other faecal chemical components showed no apparent relationships with fish weight (p > 0.05). Our results suggested that P digestibility of feed may be 30%, but more information is still needed to reach conclusions on this. The C content of faeces was 70% of that of feed and the N content of faeces was 50% of that of feed. The P content was far higher than that of feed. The lipid, docosahexaenoic acid and eicosapentaenoic acid contents of faeces were comparable to those of some phytoplankton species. The results suggested that both feed and faeces are adequate food for blue mussels and sea cucumbers co-cultured with salmon, and the nutrient content may meet their nutritional requirements.
format Article in Journal/Newspaper
author X Wang
K Andresen
A Handå
B Jensen
KI Reitan
Y Olsen
author_facet X Wang
K Andresen
A Handå
B Jensen
KI Reitan
Y Olsen
author_sort X Wang
title Chemical composition and release rate of waste discharge from an Atlantic salmon farm with an evaluation of IMTA feasibility
title_short Chemical composition and release rate of waste discharge from an Atlantic salmon farm with an evaluation of IMTA feasibility
title_full Chemical composition and release rate of waste discharge from an Atlantic salmon farm with an evaluation of IMTA feasibility
title_fullStr Chemical composition and release rate of waste discharge from an Atlantic salmon farm with an evaluation of IMTA feasibility
title_full_unstemmed Chemical composition and release rate of waste discharge from an Atlantic salmon farm with an evaluation of IMTA feasibility
title_sort chemical composition and release rate of waste discharge from an atlantic salmon farm with an evaluation of imta feasibility
publisher Inter-Research
publishDate 2013
url https://doi.org/10.3354/aei00079
https://doaj.org/article/55ade525e58e401a91eca695066ddf3a
long_lat ENVELOPE(156.945,156.945,61.792,61.792)
geographic Norway
Imta
geographic_facet Norway
Imta
genre Atlantic salmon
genre_facet Atlantic salmon
op_source Aquaculture Environment Interactions, Vol 4, Iss 2, Pp 147-162 (2013)
op_relation https://www.int-res.com/abstracts/aei/v4/n2/p147-162/
https://doaj.org/toc/1869-215X
https://doaj.org/toc/1869-7534
1869-215X
1869-7534
doi:10.3354/aei00079
https://doaj.org/article/55ade525e58e401a91eca695066ddf3a
op_doi https://doi.org/10.3354/aei00079
container_title Aquaculture Environment Interactions
container_volume 4
container_issue 2
container_start_page 147
op_container_end_page 162
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