Effects of UV-B radiation on carbon and nutrient dynamics in marine plankton communities

✍ Scribed by Sten-Åke Wängberg; Johanne-Sophie Selmer; Kim Gustavson

• Publisher: Elsevier Science
• Year: 1998
• Tongue: English
• Weight: 682 KB
• Volume: 45
• Category: Article
• ISSN: 1011-1344
• DOI: 10.1016/s1011-1344(98)00154-7

✦ Synopsis

Four indoor model ecosystems with natural plankton communities have been run. Two of the systems are exposed to artificial photosynthetic active radiation (PAR, 20 W mm2 for 16 h per day) and UV-B radiation ( = 0.64 W me2 for 6 h per day), while the other two are exposed to PAR only. Photosynthesis, nitrogen uptake, nutrient concentrations and contents of chlorophyll, particulate carbon, nitrogen and phosphorus ase kaow&%o~ SIX kys."s adi ddlorq&p% c-g< are +gii%canysv R&c&qv %ne'u"* -x3 r&&m. vMl& t$&xs 0% &G&e an& ammoriia areSess tie&&. %ie cofi1e-&s &,ntic&&e c&Q. ri&osen a&pho~&~orus are &wqvs as%&. orkilphe. 'm Xnes1'5 -B-~~-~ad c~~fd~k~ a~ k. *a~ ~d~53k, dkk k ~wberpx ~dc.~*.=jx a is 5dd. ~~~~~~ r6+k.+. 21h Kurd 4 Tfbmk5 4 hftdd predators, this indicates that the biomass of heterotrophs is enhanced in the W-B-exposed communities.