| Attributes | Values |
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| rdf:type
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| Description
| - Sledováním rychlosti průtoku a počtu pstruhů byl ověřován předpoklad, že průtok a jeho variabilita ovlivňuje různým způsobem reprodukční a nereprodukční migrace pstruhů. Rybí přechod byl situován na řece Ohři (Střední Evropa) s regulovaným řečištěm, bez zpětných proudů a při regulovaném režimu průtoku. Při reprodukční migraci pstruzi preferovali nízké a stabilní průtoky. Naopak je zřejmé, že při vyšší variabilitě průtoku se na rybích přechodech objevovaly nedospělé ryby. Nedospělé ryby tvořily vyšší podíl celkově ulovených ryb a objevovaly se hlavně v zimě, kdežto počet pstruhů během období reprodukčních migrací byl na podzim signifikantně nižší. Vysoká variabilita průtoku, nízké teploty (2-3 st C) a nedostatek zimních úkrytů způsobují migraci pstruhů v zimě. (cs)
- Flows and numbers of brown trout in a fish ladder were observed in order to examine the assumption that flow and its variance affect both spawning and non-spawning migrations, but in different ways. The ladder was situated in the Ohře River (Central Europe), and the studied stretch had a channelised riverbed, without backwaters, and a regulated discharge regime. For spawning migrations, brown trout preferred low and stable flows. In contrast, high variance in flow appeared to be associated with occurrence of non-spawners in the ladder. Non-spawners formed the higher proportion of brown trout captured overall and occurred mainly in winter, whilst the number of brown trout during the period of spawning migrations in autumn was significantly lower. High flow variability, low water temperatures (2 – 3 deg C) and insufficient availability of winter cover induced migrations of brown trout during winter.
- Flows and numbers of brown trout in a fish ladder were observed in order to examine the assumption that flow and its variance affect both spawning and non-spawning migrations, but in different ways. The ladder was situated in the Ohře River (Central Europe), and the studied stretch had a channelised riverbed, without backwaters, and a regulated discharge regime. For spawning migrations, brown trout preferred low and stable flows. In contrast, high variance in flow appeared to be associated with occurrence of non-spawners in the ladder. Non-spawners formed the higher proportion of brown trout captured overall and occurred mainly in winter, whilst the number of brown trout during the period of spawning migrations in autumn was significantly lower. High flow variability, low water temperatures (2 – 3 deg C) and insufficient availability of winter cover induced migrations of brown trout during winter. (en)
|
| Title
| - Brown trout migration and flow variability
- Brown trout migration and flow variability (en)
- Migrace pstruha obecného a variabilita průtoku (cs)
|
| skos:prefLabel
| - Brown trout migration and flow variability
- Brown trout migration and flow variability (en)
- Migrace pstruha obecného a variabilita průtoku (cs)
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| skos:notation
| - RIV/00027014:_____/04:#0000632!RIV08-MZE-00027014
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| http://linked.open.../vavai/riv/strany
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
| - P(SA/650/5/03), Z(MZE0002701402)
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| http://linked.open...iv/cisloPeriodika
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/00027014:_____/04:#0000632
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| http://linked.open...riv/jazykVysledku
| |
| http://linked.open.../riv/klicovaSlova
| - brown trout; spawners; non-spawners; fish ladder; regulated and channelised river (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...odStatuVydavatele
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...i/riv/nazevZdroje
| - Ecohydrology & Hydrobiology
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| http://linked.open...in/vavai/riv/obor
| |
| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...vavai/riv/projekt
| |
| http://linked.open...UplatneniVysledku
| |
| http://linked.open...v/svazekPeriodika
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| http://linked.open...iv/tvurceVysledku
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| http://linked.open...n/vavai/riv/zamer
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| number of pages
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