Evaluating the Bioremediation Capacity of the Polychaete Perinereis gualpensis (Jeldes, 1963) for Atlantic Salmon Aquaculture Sludge
The potential of polychaetes for the bioremediation of aquaculture sludge gained more attention in recent years. These organisms can reduce organic matter and nutrients contained in the sludge of several aquaculture species, improving the sustainability of these activities. The aim of this study was...
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MDPI AG
2023
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ftdoajarticles:oai:doaj.org/article:63645f2ae6064b61bb626aa5fd8c676f 2023-09-26T15:16:10+02:00 Evaluating the Bioremediation Capacity of the Polychaete Perinereis gualpensis (Jeldes, 1963) for Atlantic Salmon Aquaculture Sludge Silvia Gómez Gabriele Lara Carlos Felipe Hurtado René Espinoza Alvarado Jayro Gutiérrez José Carlos Huechucoy Guillermo Valenzuela-Olea Alice Turner 2023-08-01T00:00:00Z https://doi.org/10.3390/fishes8080417 https://doaj.org/article/63645f2ae6064b61bb626aa5fd8c676f EN eng MDPI AG https://www.mdpi.com/2410-3888/8/8/417 https://doaj.org/toc/2410-3888 doi:10.3390/fishes8080417 2410-3888 https://doaj.org/article/63645f2ae6064b61bb626aa5fd8c676f Fishes, Vol 8, Iss 417, p 417 (2023) bioremediation aquaculture sludge polychaete organic matter nutrients Biology (General) QH301-705.5 Genetics QH426-470 article 2023 ftdoajarticles https://doi.org/10.3390/fishes8080417 2023-08-27T00:35:42Z The potential of polychaetes for the bioremediation of aquaculture sludge gained more attention in recent years. These organisms can reduce organic matter and nutrients contained in the sludge of several aquaculture species, improving the sustainability of these activities. The aim of this study was to evaluate the removal performance of Perinereis gualpensis (Jeldes, 1963) being fed with aquaculture sludge produced by a recirculating system cultivating Atlantic salmon. The experiment involved adding different amounts of sludge (10% and 20% with respect to total substrate) at a density of 300 organisms m −2 during 30 days. A treatment without sludge served as a control, using natural substrate. The highest removal rate of total organic matter (TOM) (23.95 ± 13.19 g m −2 day −1 ) was achieved by P. gualpensis with 20% sludge addition, a reduction of about 36% compared to the total amount added at the beginning of the trials. The organisms fed with aquaculture sludge presented higher nitrogen (8–9%) and carbon (40–43%) contents, with a maximum organic carbon assimilation of 32% in relation to the total content in the sludge. The high survival (88–95%) and positive growth rates (0.28% day −1 ) achieved by P. gualpensis indicated that this species can be sustained with salmon sludge as the only source of food. These results indicate that P. gualpensis is a promising candidate for removing nutrients from salmon effluents. Moreover, the protein contents achieved by the organisms (52–58%) meet the dietary protein requirements of several aquaculture species. Further research is needed to determine the maximum bioremediation capacity of this species and to evaluate the lipid content and fatty acid profiles of P. gualpensis to determine its potential application in aquaculture feed. Article in Journal/Newspaper Atlantic salmon Directory of Open Access Journals: DOAJ Articles Fishes 8 8 417 |
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collection |
Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English |
topic |
bioremediation aquaculture sludge polychaete organic matter nutrients Biology (General) QH301-705.5 Genetics QH426-470 |
spellingShingle |
bioremediation aquaculture sludge polychaete organic matter nutrients Biology (General) QH301-705.5 Genetics QH426-470 Silvia Gómez Gabriele Lara Carlos Felipe Hurtado René Espinoza Alvarado Jayro Gutiérrez José Carlos Huechucoy Guillermo Valenzuela-Olea Alice Turner Evaluating the Bioremediation Capacity of the Polychaete Perinereis gualpensis (Jeldes, 1963) for Atlantic Salmon Aquaculture Sludge |
topic_facet |
bioremediation aquaculture sludge polychaete organic matter nutrients Biology (General) QH301-705.5 Genetics QH426-470 |
description |
The potential of polychaetes for the bioremediation of aquaculture sludge gained more attention in recent years. These organisms can reduce organic matter and nutrients contained in the sludge of several aquaculture species, improving the sustainability of these activities. The aim of this study was to evaluate the removal performance of Perinereis gualpensis (Jeldes, 1963) being fed with aquaculture sludge produced by a recirculating system cultivating Atlantic salmon. The experiment involved adding different amounts of sludge (10% and 20% with respect to total substrate) at a density of 300 organisms m −2 during 30 days. A treatment without sludge served as a control, using natural substrate. The highest removal rate of total organic matter (TOM) (23.95 ± 13.19 g m −2 day −1 ) was achieved by P. gualpensis with 20% sludge addition, a reduction of about 36% compared to the total amount added at the beginning of the trials. The organisms fed with aquaculture sludge presented higher nitrogen (8–9%) and carbon (40–43%) contents, with a maximum organic carbon assimilation of 32% in relation to the total content in the sludge. The high survival (88–95%) and positive growth rates (0.28% day −1 ) achieved by P. gualpensis indicated that this species can be sustained with salmon sludge as the only source of food. These results indicate that P. gualpensis is a promising candidate for removing nutrients from salmon effluents. Moreover, the protein contents achieved by the organisms (52–58%) meet the dietary protein requirements of several aquaculture species. Further research is needed to determine the maximum bioremediation capacity of this species and to evaluate the lipid content and fatty acid profiles of P. gualpensis to determine its potential application in aquaculture feed. |
format |
Article in Journal/Newspaper |
author |
Silvia Gómez Gabriele Lara Carlos Felipe Hurtado René Espinoza Alvarado Jayro Gutiérrez José Carlos Huechucoy Guillermo Valenzuela-Olea Alice Turner |
author_facet |
Silvia Gómez Gabriele Lara Carlos Felipe Hurtado René Espinoza Alvarado Jayro Gutiérrez José Carlos Huechucoy Guillermo Valenzuela-Olea Alice Turner |
author_sort |
Silvia Gómez |
title |
Evaluating the Bioremediation Capacity of the Polychaete Perinereis gualpensis (Jeldes, 1963) for Atlantic Salmon Aquaculture Sludge |
title_short |
Evaluating the Bioremediation Capacity of the Polychaete Perinereis gualpensis (Jeldes, 1963) for Atlantic Salmon Aquaculture Sludge |
title_full |
Evaluating the Bioremediation Capacity of the Polychaete Perinereis gualpensis (Jeldes, 1963) for Atlantic Salmon Aquaculture Sludge |
title_fullStr |
Evaluating the Bioremediation Capacity of the Polychaete Perinereis gualpensis (Jeldes, 1963) for Atlantic Salmon Aquaculture Sludge |
title_full_unstemmed |
Evaluating the Bioremediation Capacity of the Polychaete Perinereis gualpensis (Jeldes, 1963) for Atlantic Salmon Aquaculture Sludge |
title_sort |
evaluating the bioremediation capacity of the polychaete perinereis gualpensis (jeldes, 1963) for atlantic salmon aquaculture sludge |
publisher |
MDPI AG |
publishDate |
2023 |
url |
https://doi.org/10.3390/fishes8080417 https://doaj.org/article/63645f2ae6064b61bb626aa5fd8c676f |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_source |
Fishes, Vol 8, Iss 417, p 417 (2023) |
op_relation |
https://www.mdpi.com/2410-3888/8/8/417 https://doaj.org/toc/2410-3888 doi:10.3390/fishes8080417 2410-3888 https://doaj.org/article/63645f2ae6064b61bb626aa5fd8c676f |
op_doi |
https://doi.org/10.3390/fishes8080417 |
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Fishes |
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8 |
container_issue |
8 |
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417 |
_version_ |
1778137328028483584 |