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Potential for Local...
Potential for Local Fertilization : A Benthocosm Test of Long-Term and Short-Term Effects of Mussel Excretion on the Plankton
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- Cherif, Mehdi (author)
- Umeå universitet,Institutionen för ekologi, miljö och geovetenskap
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Granados, Monica (author)
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Duffy, Sean (author)
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Robert, Pauline (author)
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Pequin, Berangere (author)
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Mohit, Vani (author)
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McKindsey, Christopher W. (author)
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Archambault, Philippe (author)
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Myrand, Bruno (author)
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Lovejoy, Connie (author)
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Tremblay, Rejean (author)
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Plourde, Stephane (author)
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Fussmann, Gregor F. (author)
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(creator_code:org_t)
- 2016-06-01
- 2016
- English.
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In: PLOS ONE. - : Public Library of Science (PLoS). - 1932-6203. ; 11:6
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https://umu.diva-por... (primary) (Raw object)
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Abstract
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- Mussel aquaculture has expanded worldwide and it is important to assess its impact on the water column and the planktonic food web to determine the sustainability of farming practices. Mussel farming may affect the planktonic food web indirectly by excreting bioavailable nutrients in the water column (a short-term effect) or by increasing nutrient effluxes from bio-deposit-enriched sediments (a long-term effect). We tested both of these indirect effects in a lagoon by using plankton-enclosing benthocosms that were placed on the bottom of a shallow lagoon either inside of a mussel farm or at reference sites with no history of aquaculture. At each site, half of the benthocosms were enriched with seawater that had held mussels (excretion treatment), the other half received non-enriched seawater as a control treatment. We monitored nutrients ([PO43-] and [NH4+]), dissolved oxygen and plankton components (bacteria, the phytoplankton and the zooplankton) over 5 days. We found a significant relationship between long-term accumulation of mussel biodeposits in sediments, water-column nutrient concentrations and plankton growth. Effects of mussel excretion were not detected, too weak to be significant given the spatial and temporal variability observed in the lagoon. Effects of mussels on the water column are thus likely to be coupled to benthic processes in such semi-enclosed water bodies.
Subject headings
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Cherif, Mehdi
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Granados, Monica
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Duffy, Sean
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Robert, Pauline
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Pequin, Beranger ...
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Mohit, Vani
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show more...
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McKindsey, Chris ...
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Archambault, Phi ...
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Myrand, Bruno
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Lovejoy, Connie
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Tremblay, Rejean
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Plourde, Stephan ...
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Fussmann, Gregor ...
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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and Ecology
- Articles in the publication
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PLOS ONE
- By the university
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Umeå University