Show simple item record Alexandre M. en_US C. en_US W. en_US E. S. en_US 2009-08-06T15:13:14Z 2009-08-06T15:13:14Z 2006 en_US
dc.identifier en_US
dc.identifier.citation Anesio , A M , Daniel , C , Graneli , W & Kritzberg , E S 2006 , ' Stimulation of metazooplankton by photochemically modified dissolved organic matter ' Limnology and Oceanography , vol 51 , no. 1 , pp. 101-108 . , 10.4319/lo.2006.51.1.0101 en_US
dc.identifier.other PURE: 109780 en_US
dc.identifier.other dspace: 2160/2790 en_US
dc.description.abstract We examined the response of bacteria and proto- and metazooplankton to photomodified dissolved organic matter (DOM). Sterile filtered water from a eutrophic and a humic lake, that was either exposed to artificial ultraviolet (UV) radiation or kept dark, was added to semicontinuous laboratory microcosms that lasted for 7 weeks. Bacterial production responded positively to photochemical modification of DOM regardless of lake type. Final heterotrophic biomass (bacteria1proto1metazooplankton) was 47+/-5 and 37+/-5 mg carbon (C) L21 in microcosms with UVexposed and unaltered eutrophic water DOM and 15+/-4 and 11+/-2 mg C L21 in microcosms with UV-exposed and unaltered humic water DOM, respectively. For the eutrophic water, there were no significant differences in proto- or metazooplankton biomasses between microcosms receiving UV-exposed or nonexposed DOM. Differences between eutrophic water microcosms were not significant when flagellates, ciliates, cladocerans, and copepods were examined separately. In microcosms with UV-exposed humic water, biomasses of heterotrophic flagellates, rotifers, nauplii, and cladocerans were higher than in those with nonexposed DOM. Higher final metazooplankton biomass following addition of UV-exposed humic water indicates that photochemically modified DOM can be effectively transferred through the microbial loop. en_US
dc.format.extent 8 en_US
dc.relation.ispartof Limnology and Oceanography en_US
dc.title Stimulation of metazooplankton by photochemically modified dissolved organic matter en_US
dc.contributor.pbl Aberystwyth University en_US
dc.contributor.pbl Institute of Biological, Environmental and Rural Sciences en_US

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