The spring energy budget of the algal mat community in a Crimean hypersaline lake

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dc.contributor.author Kemp, Richard B.
dc.contributor.author Shadrin, N.
dc.contributor.author Mukhanov, V. S.
dc.contributor.author Naidanova, O. G.
dc.date.accessioned 2009-10-19T14:42:46Z
dc.date.available 2009-10-19T14:42:46Z
dc.date.issued 2004-09
dc.identifier.citation Kemp , R B , Shadrin , N , Mukhanov , V S & Naidanova , O G 2004 , ' The spring energy budget of the algal mat community in a Crimean hypersaline lake ' Aquatic Ecology , vol 38 , no. 3 , pp. 375-385 . en
dc.identifier.issn 1573-5125
dc.identifier.other PURE: 122359
dc.identifier.other dspace: 2160/3255
dc.identifier.uri http://hdl.handle.net/2160/3255
dc.description Mukhanov, V. S., Naidanova, G., Shadrin, N., Kemp, R. B. (2004). The spring energy budget of the algal mat community in a Crimean hypersaline lake. Aquatic Ecology, 38, (3), 375-385. Sponsorship: INTAS EC project grants Nos. 97-30776 and 99-1390 / INTAS Fellowship YSF 2002-361 en
dc.description.abstract The energy contents (standing stock) of the floating mat formed by the green alga Cladophora sivaschensis and the energy transfers through it were quantified for a shallow hypersaline lake (at Cape Khersones, Crimea, Ukraine) during the spring months. Appropriate direct calorimetric techniques were applied to: (i) measure the heat energy dissipated by the mat community and by the free bacterioplankton in the water column below it; and (ii) differentiate between the heat flows by the heterotrophic and the phototrophic components of the community. It was shown that Cladophora biomass reached a peak of 579.5 g C m–2, contributing more than 99.6% of the total mat community. Throughout the spring, the total bacterial energy transfer (6 to 23 mW m–2) was as little as 1.1 to 2.6% of the total heat dissipated by the microplankton community. The rest of the estimated heat energy (584 to 1488 mW m–2) was associated with Cladophora metabolism. In the spring community: (i) the rate of biomass accumulation in the lake photic layer significantly exceeded its heterotrophic mineralisation; (ii) the efficiency of the microbial loop was too low to process even a minor part of the accumulated organic matter. The microcalorimetric technique was shown to be a highly promising approach for further studies of natural microbial mats and biofilms, biological systems with complex metabolism that involves not only aerobic processes but also anaerobic catabolism under local hypoxic/microxic conditions. en
dc.format.extent 11 en
dc.language.iso eng
dc.relation.ispartof Aquatic Ecology en
dc.title The spring energy budget of the algal mat community in a Crimean hypersaline lake en
dc.type Text en
dc.type.publicationtype Article (Journal) en
dc.identifier.doi http://dx.doi.org/10.1023/B:AECO.0000035169.08581.10
dc.contributor.institution Aberystwyth University en
dc.contributor.institution Institute of Biological, Environmental and Rural Sciences en
dc.description.status Peer reviewed en


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