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Statements

Subject Item
n2:RIV%2F60077387%3A_____%2F00%3A62003043%21RIV%2F2003%2FAV0%2FA62003%2FN
rdf:type
skos:Concept n17:Vysledek
dcterms: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
dcterms: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.
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.
skos:notation
RIV/60077387:_____/00:62003043!RIV/2003/AV0/A62003/N
n4:strany
199;212
n4:aktivita
n13:Z n13:P
n4:aktivity
P(GA206/00/0063), P(GA206/97/0072), P(GA206/98/0727), P(KSK2005601), Z(AV0Z6017912)
n4:cisloPeriodika
4
n4:dodaniDat
n12:2003
n4:domaciTvurceVysledku
n9:7264798 n9:7668023 n9:7311796 n9:6252591 n9:9040358 n9:9569308
n4:druhVysledku
n18:J
n4:duvernostUdaju
n16:S
n4:entitaPredkladatele
n15:predkladatel
n4:idSjednocenehoVysledku
728100
n4:idVysledku
RIV/60077387:_____/00:62003043
n4:jazykVysledku
n7:eng
n4:klicovaSlova
N/A
n4:klicoveSlovo
n10:N%2FA
n4:kodStatuVydavatele
CZ - Česká republika
n4:kontrolniKodProRIV
[AB8584A875C0]
n4:nazevZdroje
Silva Gabreta
n4:obor
n11:DA
n4:pocetDomacichTvurcuVysledku
6
n4:pocetTvurcuVysledku
7
n4:pocetUcastnikuAkce
0
n4:pocetZahranicnichUcastnikuAkce
0
n4:projekt
n8:GA206%2F98%2F0727 n8:KSK2005601 n8:GA206%2F97%2F0072 n8:GA206%2F00%2F0063
n4:rokUplatneniVysledku
n12:2000
n4:svazekPeriodika
4
n4:tvurceVysledku
Hartman, Petr Šimek, Karel Vrba, Jaroslav Nedoma, Jiří Macek, Miroslav Straškrábová, Viera Fott, J.
n4:zamer
n14:AV0Z6017912
s:issn
1211-7420
s:numberOfPages
14