Extremely shallow spawning of perch (Perca fluviatilis L.): the roles of sheltered bays, dense semi-terrestrial vegetation and low visibility in deeper water

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F12%3A00385527" target="_blank" >RIV/60077344:_____/12:00385527 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1051/kmae/2012026" target="_blank" >http://dx.doi.org/10.1051/kmae/2012026</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1051/kmae/2012026" target="_blank" >10.1051/kmae/2012026</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Extremely shallow spawning of perch (Perca fluviatilis L.): the roles of sheltered bays, dense semi-terrestrial vegetation and low visibility in deeper water

Popis výsledku v původním jazyce

The roles of wind protected bays, presence of littoral vegetation and light attenuation in the water column on spawning site selection and depth of egg strands deposition by perch Perca fluviatilis was studied in Římov Reservoir, Czech Republic, in the years 2007 and 2011 using boat observation and SCUBA divers. The data were compared with results from Chabařovice Lake, Czech Republic, where similar monitoring took place in 2007-2010 and 2012. In shallow water of Římov Reservoir, the density of egg strands was significantly higher in grass bays compared to rocky bays and in the main reservoir. Most egg strands were deposited in water less than 0.5 m deep on reed canarygrass Phalaris arudinacea. In year when the littoral vegetation was absent perch wereforced to spawn significantly deeper on various types of woody structures. In Římov Reservoir, which is less vulnerable to wind, 91.1% of egg strands were spawned in water less than 3 m deep. In contrast, in the wind exposed Chabařovice

Název v anglickém jazyce

Extremely shallow spawning of perch (Perca fluviatilis L.): the roles of sheltered bays, dense semi-terrestrial vegetation and low visibility in deeper water

Popis výsledku anglicky

The roles of wind protected bays, presence of littoral vegetation and light attenuation in the water column on spawning site selection and depth of egg strands deposition by perch Perca fluviatilis was studied in Římov Reservoir, Czech Republic, in the years 2007 and 2011 using boat observation and SCUBA divers. The data were compared with results from Chabařovice Lake, Czech Republic, where similar monitoring took place in 2007-2010 and 2012. In shallow water of Římov Reservoir, the density of egg strands was significantly higher in grass bays compared to rocky bays and in the main reservoir. Most egg strands were deposited in water less than 0.5 m deep on reed canarygrass Phalaris arudinacea. In year when the littoral vegetation was absent perch wereforced to spawn significantly deeper on various types of woody structures. In Římov Reservoir, which is less vulnerable to wind, 91.1% of egg strands were spawned in water less than 3 m deep. In contrast, in the wind exposed Chabařovice

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

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Knowledge and Management of Aquatic Ecosystems

ISSN

1961-9502

e-ISSN

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Svazek periodika

406

Číslo periodika v rámci svazku

December

Stát vydavatele periodika

FR - Francouzská republika

Počet stran výsledku

12

Strana od-do

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Kód UT WoS článku

000312092600009

EID výsledku v databázi Scopus

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