Change search
ReferencesLink to record
Permanent link

Direct link
Potential for Local Fertilization: A Benthocosm Test of Long-Term and Short-Term Effects of Mussel Excretion on the Plankton
Umeå University, Faculty of Science and Technology, Department of Ecology and Environmental Sciences.
Show others and affiliations
2016 (English)In: PLoS ONE, ISSN 1932-6203, E-ISSN 1932-6203, Vol. 11, no 6, e0156411Article in journal (Refereed) PublishedText
Abstract [en]

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.

Place, publisher, year, edition, pages
2016. Vol. 11, no 6, e0156411
National Category
URN: urn:nbn:se:umu:diva-123446DOI: 10.1371/journal.pone.0156411ISI: 000377184700042PubMedID: 27249793OAI: diva2:949428
Available from: 2016-07-19 Created: 2016-07-04 Last updated: 2016-07-20Bibliographically approved

Open Access in DiVA

fulltext(2326 kB)21 downloads
File information
File name FULLTEXT01.pdfFile size 2326 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Other links

Publisher's full textPubMed

Search in DiVA

By author/editor
Cherif, Mehdi
By organisation
Department of Ecology and Environmental Sciences
In the same journal

Search outside of DiVA

GoogleGoogle Scholar
Total: 21 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 71 hits
ReferencesLink to record
Permanent link

Direct link