Functional response and particle size selection of Halteria cf. grandinella, a common freshwater oligotrichous ciliate.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077387%3A_____%2F00%3A62003022" target="_blank" >RIV/60077387:_____/00:62003022 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Functional response and particle size selection of Halteria cf. grandinella, a common freshwater oligotrichous ciliate.

Popis výsledku v původním jazyce

In laboratory experiments, we studied the growth and feeding characteristics of Halteria cf. grandinella, a common oligotrichous ciliate in freshwater plankton. Particle size dependent feeding rates were measured with fluorescent latex micropheres and natural food organisms (bacteria, Synechococcus, Chlorella). Maximum clearance rates were obtained with 2.76 m latex beads. Clearance rates declined for smaller and larger particle sizes and natural prey items. The physiological state of the ciliates did not seem to have an impact on the relative pattern of the particle size dependent functional response curves, but the absolute feeding rates decreased nearly 10-fold after prolonged starvation. The experiments demonstrated that this small filter-feeding ciliate is an omnivorous species, which is able to efficiently exploit the planktonic prey size spectrum from 0.5 to 5 m, covering heterotrophic and autotrophic pico- and nanoplankton in the diet.

Název v anglickém jazyce

Functional response and particle size selection of Halteria cf. grandinella, a common freshwater oligotrichous ciliate.

Popis výsledku anglicky

In laboratory experiments, we studied the growth and feeding characteristics of Halteria cf. grandinella, a common oligotrichous ciliate in freshwater plankton. Particle size dependent feeding rates were measured with fluorescent latex micropheres and natural food organisms (bacteria, Synechococcus, Chlorella). Maximum clearance rates were obtained with 2.76 m latex beads. Clearance rates declined for smaller and larger particle sizes and natural prey items. The physiological state of the ciliates did not seem to have an impact on the relative pattern of the particle size dependent functional response curves, but the absolute feeding rates decreased nearly 10-fold after prolonged starvation. The experiments demonstrated that this small filter-feeding ciliate is an omnivorous species, which is able to efficiently exploit the planktonic prey size spectrum from 0.5 to 5 m, covering heterotrophic and autotrophic pico- and nanoplankton in the diet.

Druh

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

CEP obor

EE - Mikrobiologie, virologie

OECD FORD obor

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Projekt

<a href="/cs/project/GA206%2F99%2F0028" target="_blank" >GA206/99/0028: Mechanismy mikrobiální transformace znečištění biologicky rozložitelným organickým uhlíkem a živinami v přítokové zóně kaňonovitých údolních nádrží</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2000

Kód důvěrnosti údajů

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

Název periodika

Aquatic Microbial Ecology

ISSN

0948-3055

e-ISSN

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Svazek periodika

22

Číslo periodika v rámci svazku

22

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

12

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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