Diet rather than temperature determines the biochemical composition of the ragworm Hediste diversicolor (OF Müller, 1776) (Annelida: Nereidae)

Malzahn, Arne M.; Villena-Rodríguez, Andrea; Monroig, Óscar; Johansen, Åsmund; Castro, L. Filipe C.; Navarro, Juan Carlos; Hagemann, Andreas

doi:10.1016/j.aquaculture.2023.739368

Cited by 10 publications

(9 citation statements)

References 50 publications

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“…To maintain its original state, no dewatering or drying processes were conducted. In order to prevent degradation by bacterial remineralisation, the sludge was collected and promptly transported to the laboratory and used within 72 h [9,45].…”

Section: Salmon Aquaculture Sludgementioning

confidence: 99%

“…For example, increasing the density of organisms [21,56], using a sludge richer in organic components, or complementing the diet provided to the polychaetes with fish feed could improve the results obtained [15,30,57]. On the other hand, sludge remineralisation processes can negatively affect TOM removal by polychaetes [9,20,55]. Conducting further investigations to determine the maximum capacity of a remediation system with P. gualpensis by increasing the density of polychaetes, the ratio and quality of sludge added could provide further insights on this topic.…”

Section: Tom Removal Ratesmentioning

confidence: 99%

“…For example, commercial diets for Atlantic salmon generated approximately 100 g of sludge (dry matter) per kg of salmon produced in 2010 [8]. The management practices in aquaculture systems can influence the amount of feed left unconsumed by the fish, which can range from 3% to 20%, and some of the nutrients provided in the feed may not be fully digested, ending up in the sludge [9]. Some of these nutrients have high nutritional value, particularly protein and lipids, which are essential components of animal feed, making their release to the environment also a significant loss of valuable components [10].…”

Section: Introductionmentioning

confidence: 99%

“…Many of these studies reported organic matter removal by the Nereididae and Arenicolidae families, which are the most commonly studied for this purpose. For example, Hediste diversicolor was found to effectively remove total organic matter (TOM) from fish and shrimp effluents, also exhibiting notable growth and survival rates in several investigations [9,10,16,19]. Similarly, Perinereis aibuhitensis and Abarenicola pusilla reduce carbon and nitrogen levels by consuming organic matter from fish sludge [20][21][22].…”

Section: Introductionmentioning

confidence: 99%

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Evaluating the Bioremediation Capacity of the Polychaete Perinereis gualpensis (Jeldes, 1963) for Atlantic Salmon Aquaculture Sludge

Gómez,

Lara,

Hurtado

et al. 2023

Fishes

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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.

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Section: Salmon Aquaculture Sludgementioning

confidence: 99%

Section: Tom Removal Ratesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Evaluating the Bioremediation Capacity of the Polychaete Perinereis gualpensis (Jeldes, 1963) for Atlantic Salmon Aquaculture Sludge

Gómez,

Lara,

Hurtado

et al. 2023

Fishes

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“…Previous studies have shown that aquaculture sludge from land-based salmon production is rich in nutrients and can thus constitute an appropriate resource for extractive species. The polychaete Hediste diversicolor (OF Müller, 1776) can successfully grow on aquaculture sludge from different fish species as a sole resource, and moreover, upcycle lipids and fatty acids (FAs) contained in the sludge (Fidalgo e Costa et al, 2000;Jerońimo et al, 2020;Malzahn et al, 2023). Brown et al (2011) reported that closely related Alitta (Nereis) virens fed waste feed and feces from Atlantic halibut (Hippoglossus hippoglossus L.) was highly effective in utilizing waste streams and had a higher lipid content than the control group.…”

Section: Introductionmentioning

confidence: 99%

Biochemical composition of Hediste diversicolor (OF Müller, 1776) (Annelida: Nereidae) reared on different types of aquaculture sludge

et al. 2023

Self Cite

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IntroductionSustainable growth of the salmon aquaculture industry is highly dependent on the availability of new feed resources as well as improved management and utilization of waste streams from production. Polychaetes are capable of recapturing and recycling valuable biomolecules contained in aquaculture sludge and at the same time constitute a possible resource for aquafeeds.Material and methodsIn this study, the potential of Hediste diversicolor (OF Müller, 1776) to recover nutrients and energy contained aquaculture sludge was evaluated. Hereby, the effect of two different diets, smolt and post-smolt sludge, and different feed levels on polychaete growth, and biochemical and elemental composition was assessed.Results and discussionSurvival ranged from 80-90%, independent of treatment. Specific growth rates at the highest feed levels were significantly higher than at the lowest feed levels and growth was not affected by the type of diet. Similarly, total lipid and total fatty acid content of polychaetes were positively correlated with feed level while the type of diet had a limited effect. Fatty acid composition of polychaetes reflected feed levels: in both diet groups, polychaetes at lower feed levels showed a higher percentage of saturated fatty acids; monounsaturated fatty acids increased with increased feed supply for smolt sludge-fed group and polychaetes fed post-smolt sludge showed increased polyunsaturated fatty acid content with increasing feed levels. Neither diet nor feed levels affected protein content and amino acid composition of polychaetes. In conclusion, H. diversicolor could be successfully cultivated on both smolt and post-smolt sludge and was rich in proteins and lipids as well as essential amino and fatty acids. The species can be considered a promising candidate for recycling valuable nutrients from different types of side streams salmon aquaculture.

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Towards sustainable aquaculture: Assessing polychaete meal (Alitta virens) as an effective fishmeal alternative in European seabass (Dicentrarchus labrax) diets

Monteiro,

Costa,

Sousa

et al. 2024

Aquaculture

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Diet rather than temperature determines the biochemical composition of the ragworm Hediste diversicolor (OF Müller, 1776) (Annelida: Nereidae)

Cited by 10 publications

References 50 publications

Evaluating the Bioremediation Capacity of the Polychaete Perinereis gualpensis (Jeldes, 1963) for Atlantic Salmon Aquaculture Sludge

Evaluating the Bioremediation Capacity of the Polychaete Perinereis gualpensis (Jeldes, 1963) for Atlantic Salmon Aquaculture Sludge

Biochemical composition of Hediste diversicolor (OF Müller, 1776) (Annelida: Nereidae) reared on different types of aquaculture sludge

Towards sustainable aquaculture: Assessing polychaete meal (Alitta virens) as an effective fishmeal alternative in European seabass (Dicentrarchus labrax) diets

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