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rdf:type
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Description
| - Okounovité ryby mají strukturovaný povrch těla, což může vyústit ve vyšší pravděpodobnost chycení tenaty ve srovnání s kaprovitými či lososovitými druhy, které mají povrch těla hladký. Potenciální nadhodnocení okounovitých ryb Nordickými tenaty bylo zkoumáno v Čechách a Holandsku. Vyšší podíl okounovitých v úlovcích tenaty byl nalezen v 77% případů a nadhodnocení bylo různé u různých druhů. Selektivita tenat je komplikována jak mechanickými, tak behaviorálními aspekty procesu chycení ryby s síti. Vývoj korekčních faktorů je však přesto možný a hlavně vysoce žádoucí. (cs)
- More structured surface of body of percid fish can result in higher probability of capturing and retaining by the gillnets comparing with smooth bodied fish like cyprinids and salmonids. Potential overestimation of the proportion of the percid fish by Nordic multimesh gillnets was studied in Dutch and Czech reservoirs. Higher proportion of percids in gillnets was found in 77% of cases and the overestimation rate differed among percid species. The selectivity is complicated by both mechanical and behavioural aspects of fish capture, but the future development of correcting factors is possible and highly desirable.
- More structured surface of body of percid fish can result in higher probability of capturing and retaining by the gillnets comparing with smooth bodied fish like cyprinids and salmonids. Potential overestimation of the proportion of the percid fish by Nordic multimesh gillnets was studied in Dutch and Czech reservoirs. Higher proportion of percids in gillnets was found in 77% of cases and the overestimation rate differed among percid species. The selectivity is complicated by both mechanical and behavioural aspects of fish capture, but the future development of correcting factors is possible and highly desirable. (en)
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Title
| - Are percid fish overestimated by gillnet sampling?
- Are percid fish overestimated by gillnet sampling? (en)
- Jsou okounovité ryby nadhodnocovány tenaty? (cs)
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skos:prefLabel
| - Are percid fish overestimated by gillnet sampling?
- Are percid fish overestimated by gillnet sampling? (en)
- Jsou okounovité ryby nadhodnocovány tenaty? (cs)
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skos:notation
| - RIV/60077387:_____/04:00104267!RIV/2005/AV0/A62005/N
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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(GA206/02/0520), P(IAA6017201), P(IBS6017004), P(KSK6005114), Z(MSM 123100004)
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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/60077387:_____/04:00104267
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - percids; Nordic multimesh gillnets; overestimation (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...ontrolniKodProRIV
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http://linked.open...v/mistoKonaniAkce
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http://linked.open...i/riv/mistoVydani
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http://linked.open...i/riv/nazevZdroje
| - Proceedings of PERCIS III, The Third International Percid Fish Symposium
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...vavai/riv/projekt
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http://linked.open...UplatneniVysledku
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http://linked.open...iv/tvurceVysledku
| - Kubečka, Jan
- Prchalová, Marie
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http://linked.open...vavai/riv/typAkce
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http://linked.open.../riv/zahajeniAkce
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http://linked.open...n/vavai/riv/zamer
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number of pages
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http://purl.org/ne...btex#hasPublisher
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