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Estuaries and Coasts

, Volume 38, Issue 5, pp 1629–1641 | Cite as

Pelagic and Benthic Nutrient Regeneration Processes in Mussel Cultures (Mytilus edulis) in a Eutrophic Coastal Area (Skive Fjord, Denmark)

  • Marianne HolmerEmail author
  • Sandra Walløe Thorsen
  • Marita Sundstein Carlsson
  • Petersen Jens Kjerulf
Article

Abstract

Long-line mussel farming has been proposed as a mitigation tool in eutrophic coastal areas as nutrients are removed from the ecosystem upon harvest of the crops and transferred back to land. Further mussels filter the water and thereby increase water transparency and promote benthic plant growth. Intensive mussel farming may, however, negatively affect the nutrient cycling in the local environment through nutrient regeneration in the water column and through sedimentation of biodeposits resulting in organic enrichment of the underlying sediments leading to hypoxic conditions. The objective of this study was to explore the environmental interactions of a long-line mussel farm located in a eutrophic coastal area (Skive Fjord, Denmark) by studying the nutrient cycling in the water column and sediments and assessing their contribution to the nutrient dynamics and oxygen conditions in the fjord. The mussel lines contributed with nutrients, primarily ammonium, to the pool of nutrients in the water column and the contribution increased as the biomass of mussels in the farm increased. The sedimentation of biodeposits was only slightly higher at the farm (51–86 %) compared with a reference site, and the impact on the benthic environment was limited. During most of the production cycle the farm was a net sink of N due to uptake of N in the sediments, but after 1 year, the farm became a net source of N to Skive Fjord. Mussel excretion accounted for ~82 % and sediments for ~18 % of the N released from the farm. The study shows that mitigation of nutrients by long-line mussel farming will be most efficient, if mussels are harvested within the first year of the production cycle.

Keywords

Eutrophication Sedimentation Sediment Nutrient removal Mitigation of nutrients 

Notes

Acknowledgments

The authors thank Ditte Tørring and Carsten Formsgaard at the Danish Shellfish Center and technician Katrine C. Kirkegaard, Rikke Møller, and Susanne Møller for their technical support. Senior scientist Karen Timmermann, Aarhus University provided environmental background data from Skive Fjord and senior scientist Martin M. Larsen, Aarhus University provided Fig. 1. The study was supported by the Danish Strategic Research Foundation, grant no. 09-066983 (Mumihus).

Supplementary material

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Supplementary material Table 1 (DOCX 22 kb)
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Supplementary material Table 2 (DOCX 19 kb)
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Supplementary material Table 3 (DOCX 22 kb)
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Supplementary material Table 4 (DOCX 19 kb)

References

  1. Callier, M.D., A.M. Weise, C.W. McKindsey, and G. Desrosiers. 2006. Sedimentation rates in a suspended mussel farm (Great-Entry Lagoon, Canada): biodeposit production and dispersion. Marine Ecology Progress Series 322: 129–141.CrossRefGoogle Scholar
  2. Carlsson, M.C., M. Holmer, and J.K. Petersen. 2009. Seasonal and spatial variations of benthic impacts of mussel longline farming in a eutrophic Danish Fjord, Limfjorden. Journal of Sea Research 28: 791–801.Google Scholar
  3. Carlsson, M.S., R.N. Glud, and J.K. Petersen. 2010. Degradation of mussel (Mytilus edulis) fecal pellets released from hanging long-lines upon sinking and after settling at the sediment. Canadian Journal of Fisheries and Aquaculture Science 67: 1376–1387.CrossRefGoogle Scholar
  4. Carlsson, M.S., P. Engström, O. Lindahl, L. Ljungqvist, J.K. Petersen, L. Svanberg, and M. Holmer. 2012. Effects of mussel farms on the benthic nitrogen cycle on the Swedish west coast. Aquaculture Environment Interactions 2: 177–192.CrossRefGoogle Scholar
  5. Carstensen, J., D. Krause-Jensen, S. Markager, K. Timmermann, and J. Windolf. 2013. Water clarity and eelgrass responses to nitrogen reductions in the eutrophic Skive Fjord, Denmark. Hydrobiologia 704: 293–309.CrossRefGoogle Scholar
  6. Christensen, P.B., S. Rysgaard, N.P. Sloth, T. Dalsgaard, and S. Schwærter. 2000. Sediment mineralization, nutrient fluxes, denitrification and dissimilatory nitrate reduction to ammonium in an estuarine fjord with sea cage trout farms. Aquatic Microbial Ecology 21: 73–84.CrossRefGoogle Scholar
  7. Christensen, P.B., R.N. Glud, T. Dalsgaard, and P. Gillespie. 2003. Impacts of longline mussel farming on oxygen and nitrogen dynamics and biological communities of coastal sediments. Aquaculture 218: 567–588.CrossRefGoogle Scholar
  8. Conley, D.J., J. Carstensen, G. Ærtebjerg, P.B. Christensen, T. Dalsgaard, J.L.S. Hansen, and A.B.. Josefson. 2007. Long-term changes and impacts of hypoxia in Danish coastal waters. Ecological Applications 17: 165–184.Google Scholar
  9. Cranford, P.J., P.M. Strain, M. Dowd, B.T. Hargrave, J. Grant, and M.C. Archambault. 2007. Influence of mussel aquaculture on nitrogen dynamics in a nutrient enriched coastal embayment. Marine Ecology Progress Series 347: 61–78.CrossRefGoogle Scholar
  10. Dahlbäck, B., and L. Gunnarsson. 1981. Sedimentation and sulfate reduction under a mussel culture. Marine Biology 63: 269–275.CrossRefGoogle Scholar
  11. Edelbo, L., J. Haamer, O. Lindahl, L.-O. Loo, and L. Piriz. 2000. Recycling of macronutrients from sea to land using mussel cultivation. International Journal of Environmental Pollution 13: 1–6.Google Scholar
  12. Giles, H., and C.A. Pilditch. 2006. Effects of mussel (Perna canaliculus) biodeposit decomposition on benthic respiration and nutrient fluxes. Marine Biology 150: 261–271.CrossRefGoogle Scholar
  13. Grant, J., P. Cranford, B. Hargrave, M. Carreau, B. Schofield, S. Armsworthy, V. Burdett-Coutts, and D. Ibarra. 2005. A model of aquaculture biodeposition for multiple estuaries and field validation at blue mussel (Mytilus edulis) culture sites in eastern Canada. Canadian Journal of Fisheries and Aquatic Sciences 62: 1271–1285.CrossRefGoogle Scholar
  14. Hargrave, B., L. Doucette, P. Cranford, B. Law, and T. Milligan. 2008. Influence of mussel aquaculture on sediment organic enrichment in a nutrient-rich coastal embayment. Marine Ecology Progress Series 365: 137–149.CrossRefGoogle Scholar
  15. Hartstein, N.D., and C.L. Stevens. 2005. Deposition beneath long-line mussel farms. Aquaculture Engineering 33: 192–213.CrossRefGoogle Scholar
  16. Hatcher, A., J. Grant, and B. Schofield. 1994. Effects of suspended mussel culture (Mytilus spp.) on sedimentation, benthic respiration and sediment nutrient dynamics in a coastal bay. Marine Ecology Progress Series 115: 219–235.CrossRefGoogle Scholar
  17. Holmer, M., and E. Kristensen. 1996. Seasonality of sulfate reduction and pore water solutes in a marine fish farm sediment: The importance of temperature and sedimentary organic matter. Biogeochemistry 32: 15–39.CrossRefGoogle Scholar
  18. Holmer, M., N. Ahrensberg, and N.P. Jørgensen. 2003. Impacts of mussel dredging on sediment dynamics in an eutrophic Danish fjord. Chemistry and Ecology 19: 343–362.CrossRefGoogle Scholar
  19. Jansen, H., Ø. Strand, T. Strohmeier, C. Krogness, M. Verdegem, and A. Smaal. 2011. Seasonal variability in nutrient regeneration by mussel Mytilus edulis rope culture in oligotrophic systems. Marine Ecology Progress Series 431: 137–149.CrossRefGoogle Scholar
  20. Jansen, H.M., Ø. Strand, M. Verdegem, and A. Smaal. 2012a. Accumulation, release and turnover of nutrients (C–N–P–Si) by the blue mussel Mytilus edulis under oligotrophic conditions. Journal of Experimental Marine Biology and Ecology 416–417: 185–195.CrossRefGoogle Scholar
  21. Jansen, H.M., M.C.J. Verdegem, Ø. Strand, and A.C. Smaal. 2012b. Seasonal variation in mineralization rates (C–N–P–Si) of mussel Mytilus edulis biodeposits. Marine Biology 159: 1567–1580.CrossRefGoogle Scholar
  22. Jönsson, L., and L. Holm. 2009. Effects of toxic and non-toxic blue mussel meal on health and product quality of laying hens. Journal of Animal Physiology and Animal Nutrition 94: 405–412.CrossRefGoogle Scholar
  23. Jørgensen, B.B., and N.P. Revsbech. 1983. Colorless sulfur bacteria Beggiatoa spp. and Thiovulum spp., in O2 and H2S microgradients. Applied and Environmental Microbiology 45: 1261–1270.Google Scholar
  24. Joye, S.B., and J.T. Hollibaugh. 1995. Influence of sulphide inhibition of nitrification on nitrogen regeneration in sediments. Science 270: 623–625.CrossRefGoogle Scholar
  25. Koroleff, F. 1983. Determination of nutrients. In Method of seawater analysis, ed. K. Grasshoff, M. Ehrhardt, and K. Kremling, 125–139. Verlag Chemie: Weinheim.Google Scholar
  26. Lindahl, O., and S. Kollberg. 2009. Can the EU agri-environmental aid program be extended into the coastal zone to combat eutrophication? Hydrobiologia 629: 59–64.CrossRefGoogle Scholar
  27. Lindahl, O., R. Hart, B. Hernroth, S. Kollberg, L.O. Loo, L. Olrog, J. Svensson, S. Svensson, and U. Syversen. 2005. Improving marine mussel farming: For Swedish Society by Quality Profitable Solution Water. Ambio 34: 131–138.CrossRefGoogle Scholar
  28. Lutz-Collins, V., P. Quijon, and J. Davidson. 2009. Blue mussel fouling communities: Polychaete composition in relation to mussel stocking density and seasonality of mussel deployment and sampling. Aquaculture Research 40: 1789–1792.CrossRefGoogle Scholar
  29. Maar, M., K. Timmermann, J.K. Petersen, K.E. Gustafsson, and L.M. Storm. 2010. A model study of the regulation of blue mussels by nutrient loadings and water column stability in a shallow estuary, the Limfjorden. Journal of Sea Research 64: 322–333.CrossRefGoogle Scholar
  30. McKindsey, C.W., P. Archambault, M.D. Callier, and F. Olivier. 2011. Influence of suspended and off-bottom mussel culture on the sea bottom and benthic habitats: a review. Canadian Journal of Zoology 89: 622–646.CrossRefGoogle Scholar
  31. Moeslund, L., B. Thamdrup, and B.B. Jørgensen. 1994. Sulfur and iron cycling in a coastal sediment: radiotracer studies and seasonal dynamics. Biogeochemistry 27: 129–152.Google Scholar
  32. Mohlenberg, F. 1999. Effect of meteorology and nutrient load on oxygen depletion in a Danish micro-tidal estuary. Aquatic Ecology 33: 55–64.CrossRefGoogle Scholar
  33. Nizzoli, D., D.T. Welsh, E.A. Fano, and P. Viaroli. 2006. Impact of clam and mussel farming on benthic metabolism and nitrogen cycling, with emphasis on nitrate reduction pathways. Marine Ecology Progress Series 315: 151–165.CrossRefGoogle Scholar
  34. Nizzoli, D., D.T. Welsh, and P. Viaroli. 2011. Seasonal nitrogen and phosphorus dynamics during benthic clam and suspended mussel cultivation. Marine Pollution Bulletin 62: 1276–1287.CrossRefGoogle Scholar
  35. Nunes, J.P., J.G. Ferreira, S.B. Bricker, B. O’Loan, T. Dabrowski, B. Dallaghan, A.J.S. Hawkins, B. O’Connor, and O’Carroll. 2011. Towards an ecosystem approach to aquaculture: assessment of sustainable shellfish cultivation at different scales of space, time and complexity. Aquaculture 315: 369–383.CrossRefGoogle Scholar
  36. Petersen, J.K., B. Hasler, K. Timmermann, P. Nielsen, D.B. Tørring, M.M. Larsen, M. Holmer. 2014. Mussels as a tool for mitigation of nutrients in the marine environment. Marine Pollution Bulletin 82: 137–143.Google Scholar
  37. Richard, M., P. Archambault, G. Thouzeau, and G. Desrosiers. 2006. Influence of suspended mussel lines on the biogeochemical fluxes in adjacent water in the Îles-de-la-Madeleine (Quebec, Canada). Canadian Journal of Fisheries and Aquaculture Sciences 63: 1198–1213.CrossRefGoogle Scholar
  38. Robador, A., V. Brüchert, and B.B. Jørgensen. 2009. The impact of temperature change on the activity and community composition of sulfate-reducing bacteria in arctic versus temperate marine sediments. Environmental Microbiology 11: 1692–1703.CrossRefGoogle Scholar
  39. Stadmark, J., and D.J. Conley. 2011. Mussel farming as a nutrient reduction measure in the Baltic Sea: consideration of nutrient biogeochemical cycles. Marine Pollution Bulletin 62: 1385–1388.CrossRefGoogle Scholar
  40. Stevens, C., and J.K. Petersen. 2011. Turbulent, stratified flow through a suspended shellfish canopy: implications for mussel farm design. Aquaculture Environmental Interactions 2: 87–104.CrossRefGoogle Scholar
  41. van Broekhoven, W., K. Troost, H. Jansen, and A. Smaal. 2014. Nutrient regeneration by mussel Mytilus edulis spat assemblages in a macrotidal system. Journal of Sea Research 88: 36–46.CrossRefGoogle Scholar

Copyright information

© Coastal and Estuarine Research Federation 2014

Authors and Affiliations

  • Marianne Holmer
    • 1
    Email author
  • Sandra Walløe Thorsen
    • 1
  • Marita Sundstein Carlsson
    • 1
  • Petersen Jens Kjerulf
    • 2
  1. 1.Department of BiologyUniversity of Southern DenmarkOdense MDenmark
  2. 2.Danish Shellfish CenterTechnical University of DenmarkNykøbing MorsDenmark

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