Fuctional 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%2F60076658%3A12310%2F00%3A00002751" target="_blank" >RIV/60076658:12310/00:00002751 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Fuctional 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 and widespread oligotrichous ciliate in freshwater plankton. Particle-size-dependent feeding rates were measured with fluorescent latex micropheres (0.22 to 4.23 mu m diameter) and natural food organisms (bacteria, Synechococcus sp., Chlorella minutissima) in short-term feeding experiments. N. cf. grandinella ingested all but the smallest (0.22 mu m) particles offered and demonstrated a concentration dependent type-2 functional response. Maximum clearance rates were obtained with 2.76 mu m latex beads (0.6 mu l h(-1)). Clearance rates declined for smaller and larger particle sizes but even with the suboptimal size classes, 0.47 and 1 mu m,high maximal ingestion rates were measured (19 and 13 beads ciliate(-1) min(-1), respectively). The maximum clearance rates for bacteria and algae were close to those of similar sized latex beads, and no discrimination of particles based

Název v anglickém jazyce

Fuctional 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 and widespread oligotrichous ciliate in freshwater plankton. Particle-size-dependent feeding rates were measured with fluorescent latex micropheres (0.22 to 4.23 mu m diameter) and natural food organisms (bacteria, Synechococcus sp., Chlorella minutissima) in short-term feeding experiments. N. cf. grandinella ingested all but the smallest (0.22 mu m) particles offered and demonstrated a concentration dependent type-2 functional response. Maximum clearance rates were obtained with 2.76 mu m latex beads (0.6 mu l h(-1)). Clearance rates declined for smaller and larger particle sizes but even with the suboptimal size classes, 0.47 and 1 mu m,high maximal ingestion rates were measured (19 and 13 beads ciliate(-1) min(-1), respectively). The maximum clearance rates for bacteria and algae were close to those of similar sized latex beads, and no discrimination of particles based

Druh

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

CEP obor

DA - Hydrologie a limnologie

OECD FORD obor

—

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

—

Svazek periodika

22

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

11

Strana od-do

—

Kód UT WoS článku

—

EID výsledku v databázi Scopus

—