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- Fervier, VeronicaLund Univ, Dept Biol Aquat Ecol, Solvegatan, S-3722362 Lund, Sweden.;Univ Turin, Dept Life Sci & Syst Biol, Via Acad Albertina 13, I-10123 Turin, Italy.,Lund University,University of Turin (author)
Evaluating Nutrient Reduction, Grazing and Barley Straw as Measures Against Algal Growth
- Article/chapterEnglish2020
Publisher, publication year, extent ...
- 2019-08-05
- SPRINGER,2020
- printrdacarrier
Numbers
- LIBRIS-ID:oai:DiVA.org:uu-412302
- https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-412302URI
- https://doi.org/10.1007/s13157-019-01167-6DOI
- https://lup.lub.lu.se/record/21bebb70-2594-475f-96c0-5d7a13610710URI
Supplementary language notes
- Language:English
- Summary in:English
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- SwePubSwePub
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Notes
- The aim of our study was to experimentally investigate whether it is possible to reduce nuisance growth of filamentous algae in freshwater ecosystems. We used an experimental set-up mimicking a shallow pond system and performed a field investigation in the eutrophic moat of Krapperup castle (Southern Sweden), which exemplifies an extremely impaired ecosystem with ample growth of filamentous green algae. The indoor experiment tested three treatments: I) reduced nutrient concentrations, II) invertebrate grazers and III) addition of barley straw, which may constitute measures against filamentous algal growth and thereby improve the quality of the ecosystem services provided by water bodies. Our results show a decrease in cyanobacteria and diatom abundances in all mesocosms as filamentous algae biomass increased, suggesting that the microalgae suffered from nutrient and light competition with filamentous algae. A tendency for lower filamentous algae final biomass, as well as coverage, was observed in the treatment where the concentration of nutrients was reduced. Grazers treatment showed a tendency to inhibit filamentous algae growth on artificial macrophytes towards the end of the experiment, suggesting that snails initially fed on their preferred food source (diatoms), until it was almost depleted and then started to feed on filamentous algae. Interestingly, the barley straw treatment was the only treatment promoting macrophytes growth and enhancing diatom biomass, but this did not affect filamentous algae biomass. However, the ratio between filamentous algae and macrophyte final biomasses was significantly lower in the straw treatment. In a broader context, it is likely that in a long-term perspective the positive effect of barley straw on macrophyte growth will promote a shift from dominance by filamentous algae to macrophytes as main primary producer. Moreover, our experiment shows that barley straw may be effective in reducing cyanobacterial growth, which may lead to improved water quality and thereby ecosystem services, such as supporting and cultural ecosystem services, since cyanobacteria may produce potent toxins and pose a serious risk to human and animal health. Altogether, our experimental results have important implications for the challenge of reversing nuisance filamentous algal blooms in highly eutrophic systems.
Subject headings and genre
- NATURVETENSKAP Biologi Ekologi hsv//swe
- NATURAL SCIENCES Biological Sciences Ecology hsv//eng
- Filamentous algae
- Eutrophication
- Freshwater
- Ponds
- Mesocosms
- Restoration
- Cyanobacteria
- Cyanobacteria
- Eutrophication
- Filamentous algae
- Freshwater
- Mesocosms
- Ponds
- Restoration
Added entries (persons, corporate bodies, meetings, titles ...)
- Urrutia Cordero, PabloUppsala University,Lund University,Lunds universitet,Uppsala universitet,Limnologi,Lund Univ, Dept Biol Aquat Ecol, Solvegatan, S-3722362 Lund, Sweden.;Helmholtz Inst Funct Marine Biodivers HIFMB, Ammerlander Heerstr 231, D-26129 Oldenburg, Germany.;Carl von Ossietzky Univ Oldenburg, Inst Chem & Biol Marine Environm ICBM, Schleusenstr 1, D-26382 Wilhelmshaven, Germany.,Enhet akvatisk ekologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Division aquatic ecology,Department of Biology,Faculty of Science,Helmholtz Institute for Functional Marine Biodiversity,Carl von Ossietzky University of Oldenburg(Swepub:lu)biol-pur (author)
- Piano, ElenaUniv Turin, Dept Life Sci & Syst Biol, Via Acad Albertina 13, I-10123 Turin, Italy.,University of Turin (author)
- Bona, FrancescaUniv Turin, Dept Life Sci & Syst Biol, Via Acad Albertina 13, I-10123 Turin, Italy.,University of Turin (author)
- Persson, Kenneth M.Lund University,Lunds universitet,Avdelningen för Teknisk vattenresurslära,Institutionen för bygg- och miljöteknologi,Institutioner vid LTH,Lunds Tekniska Högskola,Division of Water Resources Engineering,Department of Building and Environmental Technology,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)tvrl-kpe (author)
- Hansson, Lars AndersLund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Enhet akvatisk ekologi,Biologiska institutionen,Naturvetenskapliga fakulteten,BECC: Biodiversity and Ecosystem services in a Changing Climate,Centrum för miljö- och klimatvetenskap (CEC),Other operations, LTH,Faculty of Engineering, LTH,Division aquatic ecology,Department of Biology,Faculty of Science,Centre for Environmental and Climate Science (CEC)(Swepub:lu)lim-lah (author)
- Lund Univ, Dept Biol Aquat Ecol, Solvegatan, S-3722362 Lund, Sweden.;Univ Turin, Dept Life Sci & Syst Biol, Via Acad Albertina 13, I-10123 Turin, Italy.Lund University (creator_code:org_t)
Related titles
- In:Wetlands (Wilmington, N.C.): SPRINGER40:1, s. 193-2020277-52121943-6246
Internet link
- https://epic.awi.de/id/eprint/51387/1/Fervier2019_Article_EvaluatingNutrientReductionGra.pdf
- http://dx.doi.org/10.1007/s13157-019-01167-6FULLTEXT
- https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-412302
- https://doi.org/10.1007/s13157-019-01167-6
- https://lup.lub.lu.se/record/21bebb70-2594-475f-96c0-5d7a13610710
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