Site selection of mussel mitigation cultures in relation to efficient nutrient compensation of fish farming

Maar, Marie; Larsen, Janus; Thenen, Miriam von; Dahl, Karsten

doi:10.3354/aei00361

Cited by 12 publications

(14 citation statements)

References 59 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As an important filter-feeding organism, mussels that can be cultivated in large quantities near the fish cages affect greatly the rate of the nutrient reduction. This is in agreement with studies that showed blue mussel (Mytilus edulis) to be very efficient in compensating fish farming nutrients, acting as biofilters (Holdt and Edwards, 2014;Maar et al, 2020).…”

Section: Discussionsupporting

confidence: 92%

See 1 more Smart Citation

Can IMTA provide added ecosystem value services in the fish farms of Greece?

Papageorgiou

Dimitriou²,

Chatzivasileiou³

et al. 2023

Front. Mar. Sci.

View full text Add to dashboard Cite

In addition to food supply, there is a growing recognition of the wider ecosystem benefits of Integrated Multitrophic Aquaculture (IMTA) systems in coastal waters, including regulating services such as carbon sequestration and nutrient remediation. The water trophic status and the co-cultured species combinations affect IMTA productivity. In this study, we examined the ability of different combinations of IMTA organisms to remediate nutrients and the economic/environmental gain for reducing the environmental footprint in potential IMTA systems of the eastern Mediterranean. The results showed that the co-cultivation of organisms can reduce the negative effects on the marine environment of a fish farm both on the water column and the sediment. Meso- and eutrophic water states do not show a high variation in terms of foot print mitigation, with all three of the co-cultivated organisms to perform well. In oligotrophic waters, the obligatory absence of mussels reduces the effectiveness of the IMTA system. As expected, larger-sized IMTA systems have higher production rates and as a result higher percentage of nutrient removal. Finally, bivalve harvesting helps to remove the carbon that is trapped in their shells, contributing to the mitigation of processes related to climate change, such as the acidification of the oceans.

show abstract

Section: Discussionsupporting

confidence: 92%

“…For the IMTA mussel cultivation exercise, the N, P values content in the harvested mussels were used as reported by Maar et al (2020). These values are experimental but, as stated by the authors are in agreement with previous studies.…”

Section: Methodssupporting

confidence: 58%

Can IMTA provide added ecosystem value services in the fish farms of Greece?

Papageorgiou

Dimitriou²,

Chatzivasileiou³

et al. 2023

Front. Mar. Sci.

View full text Add to dashboard Cite

show abstract

“…In addition, there was a redistribution of ecological properties between sub-basins depending on farming location and intensity that could be important to consider as part of the ecological and social carrying capacity. This study demonstrates that mussel aquaculture in semi-enclosed system may lead to more intense effects from mussel aquaculture compared to open systems with faster water renewal (Maar et al, 2020). The found impacts will be important to consider in other similar systems in relation to spatial planning, development of bivalve aquaculture and associated sampling strategies for monitoring of the farming impacts.…”

Section: Discussionmentioning

confidence: 82%

“…There is feedback from the mussels to the biogeochemical model through filtration of plankton, respiration (O 2 ), excretion (NH 4 , PO 4 ), and fecal pellet production (Figure S1 in Supporting Information S1). Mussel fecal pellets are sinking through the water column until settlement on the bottom, from where they could be resuspended, degraded, ingested by deposit feeders or gradually transferred to the consolidated sediment (Maar et al, 2020). Intact mussel pellets are typically sinking 0.2-0.4 cm s −1 (Carlsson et al, 2010).…”

Section: Mussel Farm Scale Modelmentioning

confidence: 99%

Intensified Mussel Farming; Impacts on Nutrient Budgets and Ecology in a Eutrophic Semi‐Enclosed Fjord System

2023

View full text Add to dashboard Cite

Compared to land‐based sources, mussel aquaculture provides food products with a high‐quality protein content and a low carbon footprint. At the same time, mussel cultures store nutrients in their tissue that are removed from the system through harvesting. However, increasingly development of suspended bivalve aquaculture in the coastal zone also comes with a price as the ecological carrying capacity of the ecosystem may be exceeded. The present study aims to support future fjord‐management by estimating the nutrient budgets and ecological impacts of intensified mussel aquaculture in a shallow semi‐enclosed system, the Limfjorden, using 3D ecosystem modeling. Model results showed a net removal of nutrients by suspended mussel cultures at basin scale, whereas at farm scale the efficiency was lower due to increased sediment fluxes. An increase in mussel farming from the current 4 kt‐fresh weight to a future projection of 104 kt‐fresh weight did not exceed the ecological carrying capacity with respect to impacts on sediment chemistry but could cause local declines in benthic bivalve populations. Intense mussel farming provided ecosystem services such as better oxygen conditions and higher Secchi depth together with lower nutrient‐ and chlorophyll a concentrations on basin scale. In addition, there was a redistribution of nutrients, chlorophyll a concentrations, and Secchi depth between sub‐basins in the fjord depending on farming location and intensity. Overall, intensified mussel farming could contribute to the mitigation of eutrophication effects by removing nutrients from land sources and by reducing the local sediment loading.

show abstract

“…Integrated multi-trophic aquaculture (IMTA) is the co-culturing of different species that can be used to reduce the nutrient emissions from marine fish farms [36]. The concept of IMTA uses a similar mass balance principle approach as the mitigation mussel farm strategy.…”

Section: Integrated Multi-trophic Aquaculturementioning

confidence: 99%

Ecosystem Service Assessments within the EU Water Framework Directive: Marine Mussel Cultivation as a Controversial Measure

Ritzenhofen

Schumacher

Karstens³

et al. 2022

Applied Sciences

View full text Add to dashboard Cite

To combat the persistent eutrophication in coastal waters, sustainable sea-based measures are recommended. Yet, they are the subject of controversial stakeholder discussion, which hampers the implementation and planning process. The aim of this study is to evaluate if a participatory mapping (PM) approach and ecosystem service assessments (ESA) can be suitable tools within Water Framework Directive (WFD) implementation to support the communication with different target groups to improve and accelerate the planning and realization of new sea-based mitigation measures. We conducted three stakeholder-based PMs to visualize the perception of sea-based mitigation measures in coastal waters and seven different ESAs to investigate the perceptions of different mussel cultivation scenarios as mitigation measures. The PMs showed that ecological measures were preferred. The ESA approach showed that, while experts rated mussel cultivation scenarios positively overall, non-expert stakeholders still seemed skeptical and preferred alternative measures like floating wetlands. The methodological results indicate that PM can be a cost-effective tool to visualize stakeholders’ perceptions, but it needs to be applied with an ESA to be beneficial for the WFD implementation process. A web-based ESA improves the discussion with stakeholders and can reveal potential misperceptions and concerns faster and lead to a more focused discussion.

show abstract

Site selection of mussel mitigation cultures in relation to efficient nutrient compensation of fish farming

Cited by 12 publications

References 59 publications

Can IMTA provide added ecosystem value services in the fish farms of Greece?

Can IMTA provide added ecosystem value services in the fish farms of Greece?

Intensified Mussel Farming; Impacts on Nutrient Budgets and Ecology in a Eutrophic Semi‐Enclosed Fjord System

Ecosystem Service Assessments within the EU Water Framework Directive: Marine Mussel Cultivation as a Controversial Measure

Contact Info

Product

Resources

About