Mussel production as a nutrient mitigation tool for improving marine water quality

Karen Timmermann*, Marie Maar, Karsten Bolding, Janus Larsen, Jørgen Windolf, Pernille Nielsen, JK Petersen

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

Longline mussel farming has been proposed as a tool to remove nutrients and counteract the negative effects of eutrophication in coastal waters. In this study, we use coupled 3D hydrodynamic and ecological modelling in combination with measurements from a full-scale mitigation farm to assess the environmental effects of mitigation cultures in Skive Fjord, Denmark, a shallow eutrophic estuary. The results show that mitigation cultures decrease chl a concentration and increase Secchi depth especially in the surroundings of the farms but also on a basin scale. Fecal production by the mussels increases sedimentation below the farms but reduces ambient sedimentation, resulting in a net decrease in sedimentation of organic material on a basin scale. Comparisons with nutrient load reduction scenarios indicate that nutrient removal by mitigation cultures have a higher short-term impact on water quality parameters (chl a, Secchi depth and sedimentation) than nutrient removal using land-based measures.
Original languageEnglish
JournalAquaculture Environment Interactions
Volume11
Pages (from-to)191-204
ISSN1869-215X
DOIs
Publication statusPublished - 2019

Keywords

  • Eutrophication
  • Mussel culture
  • Nutrients
  • Modelling
  • DEB model
  • Water quality indicators

Cite this

Timmermann, Karen ; Maar, Marie ; Bolding, Karsten ; Larsen, Janus ; Windolf, Jørgen ; Nielsen, Pernille ; Petersen, JK. / Mussel production as a nutrient mitigation tool for improving marine water quality. In: Aquaculture Environment Interactions. 2019 ; Vol. 11. pp. 191-204.
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abstract = "Longline mussel farming has been proposed as a tool to remove nutrients and counteract the negative effects of eutrophication in coastal waters. In this study, we use coupled 3D hydrodynamic and ecological modelling in combination with measurements from a full-scale mitigation farm to assess the environmental effects of mitigation cultures in Skive Fjord, Denmark, a shallow eutrophic estuary. The results show that mitigation cultures decrease chl a concentration and increase Secchi depth especially in the surroundings of the farms but also on a basin scale. Fecal production by the mussels increases sedimentation below the farms but reduces ambient sedimentation, resulting in a net decrease in sedimentation of organic material on a basin scale. Comparisons with nutrient load reduction scenarios indicate that nutrient removal by mitigation cultures have a higher short-term impact on water quality parameters (chl a, Secchi depth and sedimentation) than nutrient removal using land-based measures.",
keywords = "Eutrophication, Mussel culture, Nutrients, Modelling, DEB model, Water quality indicators",
author = "Karen Timmermann and Marie Maar and Karsten Bolding and Janus Larsen and J{\o}rgen Windolf and Pernille Nielsen and JK Petersen",
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Mussel production as a nutrient mitigation tool for improving marine water quality. / Timmermann, Karen; Maar, Marie; Bolding, Karsten; Larsen, Janus; Windolf, Jørgen; Nielsen, Pernille; Petersen, JK.

In: Aquaculture Environment Interactions, Vol. 11, 2019, p. 191-204.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Mussel production as a nutrient mitigation tool for improving marine water quality

AU - Timmermann, Karen

AU - Maar, Marie

AU - Bolding, Karsten

AU - Larsen, Janus

AU - Windolf, Jørgen

AU - Nielsen, Pernille

AU - Petersen, JK

PY - 2019

Y1 - 2019

N2 - Longline mussel farming has been proposed as a tool to remove nutrients and counteract the negative effects of eutrophication in coastal waters. In this study, we use coupled 3D hydrodynamic and ecological modelling in combination with measurements from a full-scale mitigation farm to assess the environmental effects of mitigation cultures in Skive Fjord, Denmark, a shallow eutrophic estuary. The results show that mitigation cultures decrease chl a concentration and increase Secchi depth especially in the surroundings of the farms but also on a basin scale. Fecal production by the mussels increases sedimentation below the farms but reduces ambient sedimentation, resulting in a net decrease in sedimentation of organic material on a basin scale. Comparisons with nutrient load reduction scenarios indicate that nutrient removal by mitigation cultures have a higher short-term impact on water quality parameters (chl a, Secchi depth and sedimentation) than nutrient removal using land-based measures.

AB - Longline mussel farming has been proposed as a tool to remove nutrients and counteract the negative effects of eutrophication in coastal waters. In this study, we use coupled 3D hydrodynamic and ecological modelling in combination with measurements from a full-scale mitigation farm to assess the environmental effects of mitigation cultures in Skive Fjord, Denmark, a shallow eutrophic estuary. The results show that mitigation cultures decrease chl a concentration and increase Secchi depth especially in the surroundings of the farms but also on a basin scale. Fecal production by the mussels increases sedimentation below the farms but reduces ambient sedimentation, resulting in a net decrease in sedimentation of organic material on a basin scale. Comparisons with nutrient load reduction scenarios indicate that nutrient removal by mitigation cultures have a higher short-term impact on water quality parameters (chl a, Secchi depth and sedimentation) than nutrient removal using land-based measures.

KW - Eutrophication

KW - Mussel culture

KW - Nutrients

KW - Modelling

KW - DEB model

KW - Water quality indicators

U2 - 10.3354/aei00306

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JO - Aquaculture Environment Interactions

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SN - 1869-215X

ER -