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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Autores principales:	X Wang, K Andresen, A Handå, B Jensen, KI Reitan, Y Olsen
Formato:	article
Lenguaje:	EN
Publicado:	Inter-Research 2013
Materias:	Aquaculture. Fisheries. Angling SH1-691 Ecology QH540-549.5
Acceso en línea:	https://doaj.org/article/55ade525e58e401a91eca695066ddf3a
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spelling	oai:doaj.org-article:55ade525e58e401a91eca695066ddf3a2021-11-17T10:05:14ZChemical composition and release rate of waste discharge from an Atlantic salmon farm with an evaluation of IMTA feasibility1869-215X1869-753410.3354/aei00079https://doaj.org/article/55ade525e58e401a91eca695066ddf3a2013-07-01T00:00:00Zhttps://www.int-res.com/abstracts/aei/v4/n2/p147-162/https://doaj.org/toc/1869-215Xhttps://doaj.org/toc/1869-7534The 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.X WangK AndresenA HandåB JensenKI ReitanY OlsenInter-ResearcharticleAquaculture. Fisheries. AnglingSH1-691EcologyQH540-549.5ENAquaculture Environment Interactions, Vol 4, Iss 2, Pp 147-162 (2013)
institution	DOAJ
collection	DOAJ
language	EN
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
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
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://doaj.org/article/55ade525e58e401a91eca695066ddf3a
work_keys_str_mv	AT xwang chemicalcompositionandreleaserateofwastedischargefromanatlanticsalmonfarmwithanevaluationofimtafeasibility AT kandresen chemicalcompositionandreleaserateofwastedischargefromanatlanticsalmonfarmwithanevaluationofimtafeasibility AT ahanda chemicalcompositionandreleaserateofwastedischargefromanatlanticsalmonfarmwithanevaluationofimtafeasibility AT bjensen chemicalcompositionandreleaserateofwastedischargefromanatlanticsalmonfarmwithanevaluationofimtafeasibility AT kireitan chemicalcompositionandreleaserateofwastedischargefromanatlanticsalmonfarmwithanevaluationofimtafeasibility AT yolsen chemicalcompositionandreleaserateofwastedischargefromanatlanticsalmonfarmwithanevaluationofimtafeasibility
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Chemical composition and release rate of waste discharge from an Atlantic salmon farm with an evaluation of IMTA feasibility

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