Sinusoidal swimming in fishes: the role of season, density of large zooplankton, fish length, time of the day, weather condition and solar radiation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F10%3A00349545" target="_blank" >RIV/60077344:_____/10:00349545 - 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

Sinusoidal swimming in fishes: the role of season, density of large zooplankton, fish length, time of the day, weather condition and solar radiation

Popis výsledku v původním jazyce

The sinusoidal swimming of fish was studied in Římov Reservoir, Czech Republic, using a bottom-mounted transducer. The proportion of sinusoidally swimming fish increased from April to August while this behaviour was absent in October. The majority of records came from fish of standard length 100 - 400 mm, which represents the typical size range of common bream and roach of age >1+, the main zooplanktivores in the reservoir. The presence of these larger fish in the open water, as well as the presence ofsinusoidal swimming, correlates with the presence of large zooplankton (Daphnia, Leptodora) in the epilimnion. The increase of sinusoidal swimming between April, June and August resulted in an increase of zooplankton component in fish guts. High values of solar radiation and stable calm weather result in optimal optical conditions for sinusoidal swimming, making this foraging behaviour more efficient and widely used in fishes exploiting the zooplankton production in the reservoir.

Název v anglickém jazyce

Sinusoidal swimming in fishes: the role of season, density of large zooplankton, fish length, time of the day, weather condition and solar radiation

Popis výsledku anglicky

The sinusoidal swimming of fish was studied in Římov Reservoir, Czech Republic, using a bottom-mounted transducer. The proportion of sinusoidally swimming fish increased from April to August while this behaviour was absent in October. The majority of records came from fish of standard length 100 - 400 mm, which represents the typical size range of common bream and roach of age >1+, the main zooplanktivores in the reservoir. The presence of these larger fish in the open water, as well as the presence ofsinusoidal swimming, correlates with the presence of large zooplankton (Daphnia, Leptodora) in the epilimnion. The increase of sinusoidal swimming between April, June and August resulted in an increase of zooplankton component in fish guts. High values of solar radiation and stable calm weather result in optimal optical conditions for sinusoidal swimming, making this foraging behaviour more efficient and widely used in fishes exploiting the zooplankton production in the reservoir.

Druh

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

CEP obor

EG - Zoologie

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název periodika

Hydrobiologia

ISSN

0018-8158

e-ISSN

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Svazek periodika

654

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

13

Strana od-do

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Kód UT WoS článku

000281026500020

EID výsledku v databázi Scopus

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