About: Structure of pelagic food webs in low-alkalinity lakes

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About: Structure of pelagic food webs in low-alkalinity lakes - forested and alpine catchments. Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Pelagic food webs in 15 lakes from European mountains were investigated during ice-free seasons. Eight lakes were acidified: pH < 6, alkalinity < 20 eq/l. The total phosphorus (TP) was 0.5-12.5 g/l without relation to pH. In alpine catchments, the only lakes with TP > 5 g/l were Starolesnianské pleso and Jörisee III. Bacteria were more important in pelagic food webs, both in terms of biomass and of activities, than in lowland lakes. Heterotrophic protozoans were scarce. Total pelagic biomass (Tbi) was directly correlated with TP (log/log). Total heterotrophic microbial biomass (THMi) reached 8.1 to 170 g/l C, i.e. 5 to 90 of Tbi. The highest THMi were found in Bohemian Forest. In Starolesnianské pleso the highest phytoplankton biomass (PHY) and PHY/THMi ratio were observed. The lowest zooplankton (ZOO) to PHY and ZOO/Tbi ratios occurred in the lakes of Bohemian Forest and of Tatra Mts. The percentage of exudation in total primary production was higher at low total production (20-90 in alpinelakes Pelagic food webs in 15 lakes from European mountains were investigated during ice-free seasons. Eight lakes were acidified: pH < 6, alkalinity < 20 eq/l. The total phosphorus (TP) was 0.5-12.5 g/l without relation to pH. In alpine catchments, the only lakes with TP > 5 g/l were Starolesnianské pleso and Jörisee III. Bacteria were more important in pelagic food webs, both in terms of biomass and of activities, than in lowland lakes. Heterotrophic protozoans were scarce. Total pelagic biomass (Tbi) was directly correlated with TP (log/log). Total heterotrophic microbial biomass (THMi) reached 8.1 to 170 g/l C, i.e. 5 to 90 of Tbi. The highest THMi were found in Bohemian Forest. In Starolesnianské pleso the highest phytoplankton biomass (PHY) and PHY/THMi ratio were observed. The lowest zooplankton (ZOO) to PHY and ZOO/Tbi ratios occurred in the lakes of Bohemian Forest and of Tatra Mts. The percentage of exudation in total primary production was higher at low total production (20-90 in alpinelakes (en)
Title	Structure of pelagic food webs in low-alkalinity lakes - forested and alpine catchments. Structure of pelagic food webs in low-alkalinity lakes - forested and alpine catchments. (en)
skos:prefLabel	Structure of pelagic food webs in low-alkalinity lakes - forested and alpine catchments. Structure of pelagic food webs in low-alkalinity lakes - forested and alpine catchments. (en)
skos:notation	RIV/60077387:_____/00:62003043!RIV/2003/AV0/A62003/N
http://linked.open.../vavai/riv/strany	199;212
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA206/00/0063), P(GA206/97/0072), P(GA206/98/0727), P(KSK2005601), Z(AV0Z6017912)
http://linked.open...iv/cisloPeriodika	4
http://linked.open...vai/riv/dodaniDat	2003
http://linked.open...aciTvurceVysledku	Nedoma, Jiří Hartman, Petr Straškrábová, Viera Šimek, Karel Vrba, Jaroslav Macek, Miroslav
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Hydrobiologický ústav AV ČR
http://linked.open...dnocenehoVysledku	728100
http://linked.open...ai/riv/idVysledku	RIV/60077387:_____/00:62003043
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	N/A (en)
http://linked.open.../riv/klicoveSlovo	N/A
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[AB8584A875C0]
http://linked.open...i/riv/nazevZdroje	Silva Gabreta
http://linked.open...in/vavai/riv/obor	DA
http://linked.open...ichTvurcuVysledku	6 (xsd:int)
http://linked.open...cetTvurcuVysledku	7 (xsd:int)
http://linked.open...ocetUcastnikuAkce	0 (xsd:int)
http://linked.open...nichUcastnikuAkce	0 (xsd:int)
http://linked.open...vavai/riv/projekt	Biodiversity of microbial loop ,carbon flow and nutrient cycling in acidified lakes in the Šumava Mountains : pathways and controlling mechanisms Evaluation and prognosis of ecosystem change based on analysis of long-term data series Biogeochemical cycles of nutrients in mountain catchment-lake ecosystems: Anthropogenic impacts and possibilities of recovery Biodiversity and functions of ecological systems
http://linked.open...UplatneniVysledku	2000
http://linked.open...v/svazekPeriodika	4
http://linked.open...iv/tvurceVysledku	Šimek, Karel Nedoma, Jiří Vrba, Jaroslav Macek, Miroslav Straškrábová, Viera Fott, J. Hartman, Petr
http://linked.open...n/vavai/riv/zamer	Biotické interakce v pelagické zóně lenitických ekosystémů, údolních nádrží a jezer různé trofie v podmínkách výrazného snížení emisí v postkomunistické Evropě
issn	1211-7420
number of pages	14 (xsd:int)

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