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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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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1766363388545335296 |