Upcycling of carbon, nitrogen, and phosphorus from aquaculture sludge using the polychaete Hediste diversicolor (OF Müller, 1776) (Annelida: Nereididae)
Introduction Focusing on circular bioeconomy and finding solutions for managing finite and scarce resources such as phosphorus are issues that need to be addressed across sectors to attain food security. Land-based aquaculture of Atlantic salmon ( Salmo salar L.) smolt and post-smolt results in a la...
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Online Access: | http://dx.doi.org/10.3389/fsufs.2023.1278586 https://www.frontiersin.org/articles/10.3389/fsufs.2023.1278586/full |
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crfrontiers:10.3389/fsufs.2023.1278586 2024-04-28T08:13:36+00:00 Upcycling of carbon, nitrogen, and phosphorus from aquaculture sludge using the polychaete Hediste diversicolor (OF Müller, 1776) (Annelida: Nereididae) Anglade, Inka Kristensen, Bjørn S. B. Dahl, Thomas H. Hagemann, Andreas Malzahn, Arne M. Reitan, Kjell Inge 2023 http://dx.doi.org/10.3389/fsufs.2023.1278586 https://www.frontiersin.org/articles/10.3389/fsufs.2023.1278586/full unknown Frontiers Media SA https://creativecommons.org/licenses/by/4.0/ Frontiers in Sustainable Food Systems volume 7 ISSN 2571-581X Horticulture Management, Monitoring, Policy and Law Agronomy and Crop Science Ecology Food Science Global and Planetary Change journal-article 2023 crfrontiers https://doi.org/10.3389/fsufs.2023.1278586 2024-04-08T06:44:02Z Introduction Focusing on circular bioeconomy and finding solutions for managing finite and scarce resources such as phosphorus are issues that need to be addressed across sectors to attain food security. Land-based aquaculture of Atlantic salmon ( Salmo salar L.) smolt and post-smolt results in a large output of aquaculture sludge. These nutrient-rich side streams from aquaculture production constitute a valuable resource for cultivation of polychaetes Hediste diversicolor . The aim of this study was to evaluate the capacity of H. diversicolor to upcycle carbon (C), nitrogen (N), and phosphorus (P) contained in aquaculture sludge from Norwegian salmon production. Material and methods We investigated the effect of two diets, smolt sludge and post-smolt sludge, which were supplied at four different feed levels, on the gain of C, N, and P in H. diversicolor and established uptake rates for the upcycling of these nutrients. Additionally, we examined how different feed composition (type of diet) and supply (feel level) influenced C, N, and P content as well as the elemental ratios of H. diversicolor . Results and discussion Polychaetes fed with both types of sludge were shown to incorporate C, N, and P from their diets into biomass. Incorporation of C, N, and P in polychaete biomass was highest at the highest feed levels, following specific growth rates. Uptake of diet C, N, and P into polychaete biomass was similar for both diets and across feed levels. On average, C and N uptake rates amounted to 2–10% and 2–15%, respectively, while values for P uptake were lower at 0.5–1.5%. C, N, and P content of polychaetes was not affected by different diets or feed levels while the C:N ratio increased with increasing feed supply. Overall, we found that H. diversicolor can successfully take up nutrients contained in aquaculture sludge and thus can be beneficial for upcycling of side streams from Atlantic salmon production. Article in Journal/Newspaper Atlantic salmon Salmo salar Frontiers (Publisher) Frontiers in Sustainable Food Systems 7 |
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Horticulture Management, Monitoring, Policy and Law Agronomy and Crop Science Ecology Food Science Global and Planetary Change |
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Horticulture Management, Monitoring, Policy and Law Agronomy and Crop Science Ecology Food Science Global and Planetary Change Anglade, Inka Kristensen, Bjørn S. B. Dahl, Thomas H. Hagemann, Andreas Malzahn, Arne M. Reitan, Kjell Inge Upcycling of carbon, nitrogen, and phosphorus from aquaculture sludge using the polychaete Hediste diversicolor (OF Müller, 1776) (Annelida: Nereididae) |
topic_facet |
Horticulture Management, Monitoring, Policy and Law Agronomy and Crop Science Ecology Food Science Global and Planetary Change |
description |
Introduction Focusing on circular bioeconomy and finding solutions for managing finite and scarce resources such as phosphorus are issues that need to be addressed across sectors to attain food security. Land-based aquaculture of Atlantic salmon ( Salmo salar L.) smolt and post-smolt results in a large output of aquaculture sludge. These nutrient-rich side streams from aquaculture production constitute a valuable resource for cultivation of polychaetes Hediste diversicolor . The aim of this study was to evaluate the capacity of H. diversicolor to upcycle carbon (C), nitrogen (N), and phosphorus (P) contained in aquaculture sludge from Norwegian salmon production. Material and methods We investigated the effect of two diets, smolt sludge and post-smolt sludge, which were supplied at four different feed levels, on the gain of C, N, and P in H. diversicolor and established uptake rates for the upcycling of these nutrients. Additionally, we examined how different feed composition (type of diet) and supply (feel level) influenced C, N, and P content as well as the elemental ratios of H. diversicolor . Results and discussion Polychaetes fed with both types of sludge were shown to incorporate C, N, and P from their diets into biomass. Incorporation of C, N, and P in polychaete biomass was highest at the highest feed levels, following specific growth rates. Uptake of diet C, N, and P into polychaete biomass was similar for both diets and across feed levels. On average, C and N uptake rates amounted to 2–10% and 2–15%, respectively, while values for P uptake were lower at 0.5–1.5%. C, N, and P content of polychaetes was not affected by different diets or feed levels while the C:N ratio increased with increasing feed supply. Overall, we found that H. diversicolor can successfully take up nutrients contained in aquaculture sludge and thus can be beneficial for upcycling of side streams from Atlantic salmon production. |
format |
Article in Journal/Newspaper |
author |
Anglade, Inka Kristensen, Bjørn S. B. Dahl, Thomas H. Hagemann, Andreas Malzahn, Arne M. Reitan, Kjell Inge |
author_facet |
Anglade, Inka Kristensen, Bjørn S. B. Dahl, Thomas H. Hagemann, Andreas Malzahn, Arne M. Reitan, Kjell Inge |
author_sort |
Anglade, Inka |
title |
Upcycling of carbon, nitrogen, and phosphorus from aquaculture sludge using the polychaete Hediste diversicolor (OF Müller, 1776) (Annelida: Nereididae) |
title_short |
Upcycling of carbon, nitrogen, and phosphorus from aquaculture sludge using the polychaete Hediste diversicolor (OF Müller, 1776) (Annelida: Nereididae) |
title_full |
Upcycling of carbon, nitrogen, and phosphorus from aquaculture sludge using the polychaete Hediste diversicolor (OF Müller, 1776) (Annelida: Nereididae) |
title_fullStr |
Upcycling of carbon, nitrogen, and phosphorus from aquaculture sludge using the polychaete Hediste diversicolor (OF Müller, 1776) (Annelida: Nereididae) |
title_full_unstemmed |
Upcycling of carbon, nitrogen, and phosphorus from aquaculture sludge using the polychaete Hediste diversicolor (OF Müller, 1776) (Annelida: Nereididae) |
title_sort |
upcycling of carbon, nitrogen, and phosphorus from aquaculture sludge using the polychaete hediste diversicolor (of müller, 1776) (annelida: nereididae) |
publisher |
Frontiers Media SA |
publishDate |
2023 |
url |
http://dx.doi.org/10.3389/fsufs.2023.1278586 https://www.frontiersin.org/articles/10.3389/fsufs.2023.1278586/full |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Frontiers in Sustainable Food Systems volume 7 ISSN 2571-581X |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3389/fsufs.2023.1278586 |
container_title |
Frontiers in Sustainable Food Systems |
container_volume |
7 |
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1797580055787864064 |