Primární produkce a mikrobiální aktivita v eufotické vrstvě jezera Bajkal (jižní část) na konci zimy

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077387%3A_____%2F05%3A00024599" target="_blank" >RIV/60077387:_____/05:00024599 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60076658:12310/05:00008734

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Primary production and microbial activity in the euphotic zone of Lake Baikal (Southern Basin) during late winter

Popis výsledku v původním jazyce

Three years of monitoring temperature, transparency, chlorophyll and bacteria at the vertical profile in the South basin of Lake Baikal were evaluated. Phytoplankton and the microbial loop in euphotic layer at the same site were investigated during Marchunder the ice. Total primary cellular production (>1um) was 204 - 240 mg C/d/m square, with 35% of it in cells 1 ? 3 um (picocyanobacteria). Total production (incl. extracellular) was 235 ? 387 mg C/d/m square and the exudates were readily used by bacteria. This amounted to 1 ? 5% of cellular production in upper 20m of water, and 11 ? 77% of cellular production in deeper, light-limited layers. Bacterial counts reached 0.5 ? 1.4 x 10 mill/ml and numbers of colony forming units on agar were 3 ? 4 orderslower. Heterotrophic flagellates reached 6 to 87 ind/ml and ciliates 0.2 ? 1.2 ind/ml. Bacterial production corresponded to a use of 20 ? 40% of primary production per 24h in layers up to 20m.

Název v anglickém jazyce

Primary production and microbial activity in the euphotic zone of Lake Baikal (Southern Basin) during late winter

Popis výsledku anglicky

Three years of monitoring temperature, transparency, chlorophyll and bacteria at the vertical profile in the South basin of Lake Baikal were evaluated. Phytoplankton and the microbial loop in euphotic layer at the same site were investigated during Marchunder the ice. Total primary cellular production (>1um) was 204 - 240 mg C/d/m square, with 35% of it in cells 1 ? 3 um (picocyanobacteria). Total production (incl. extracellular) was 235 ? 387 mg C/d/m square and the exudates were readily used by bacteria. This amounted to 1 ? 5% of cellular production in upper 20m of water, and 11 ? 77% of cellular production in deeper, light-limited layers. Bacterial counts reached 0.5 ? 1.4 x 10 mill/ml and numbers of colony forming units on agar were 3 ? 4 orderslower. Heterotrophic flagellates reached 6 to 87 ind/ml and ciliates 0.2 ? 1.2 ind/ml. Bacterial production corresponded to a use of 20 ? 40% of primary production per 24h in layers up to 20m.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DA - Hydrologie a limnologie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2005

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Global and Planetary Change

ISSN

0921-8181

e-ISSN

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Svazek periodika

46

Číslo periodika v rámci svazku

1-4

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

17

Strana od-do

57-73

Kód UT WoS článku

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EID výsledku v databázi Scopus

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