About: Recapture, growth and movement of wild, pond- and hatchery-reared European grayling (Thymallus thymallus L.) released in small stream     Goto   Sponge   NotDistinct   Permalink

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  • Návratnost, růst a migrace dvouleté násady lipana padhorního, odchované v zemní sádce (krmeno granulemi), v přirozeném rybníce (přirozená potrava) a jednoletých divokých lipanů byla posuzována na základě znovuodlovení individuálně označených ryb po 168 dnech od vysazení do 12 experimentálních úseků řeky Blanice vodňanská na jihu České republiky. Nejvyšší návratnost (40%) byla zaznamenána u divokých lipanů v kontrolních úsecích bez přisazení uměle odchovaných ryb, poněkud nižší (28%) u divokých ryb v pokusných úsecích. Signifikantně nižší návratnost proti oběma skupinám divokých ryb měli lipani odchovaní v zemní sádce (14%) i v rybníce (16%). Specifická rychlost růstu za dobu experimentu se mezi žádnými skupinami ryb statisticky významně nelišila. Poproudová ani protiproudová migrace jednotlivých skupin lipanů rovněž nebyla signifikantně rozdílná. Divocí lipani v pokusných úsecích měli významně vyšší stabilitu v úseku vysazení než lipani odchovaní v rybníce. (cs)
  • Recapture, growth and migration of two-year old grayling fry (stock) and one-year old resident wild grayling were assessed on basis of individually recaptured and marked fish after 168 days in 12 experimental stretches of the river Blanice vodňanská. One part of artificial-reared fish was reared in stew pond (hatchery) (feed on pellets) and the second sort of fish was reared in pond with natural food. The highest recapture (40 %) had wild grayling in control river stretches without stocked hatchery fish. Somewhat lower recapture (28 %) had wild fish in experimental stretches. In comparison with both groups of fish, wild fish carried out in stew pond and natural pond had significantly lower recapture (14 % and 16 %, respectively). Differences in specific grow rate and in down-stream and up-stream migrations were not significant during experimental time among any group. Wild grayling stayed in experimental stretches significantly more than grayling reared in pond.
  • Recapture, growth and migration of two-year old grayling fry (stock) and one-year old resident wild grayling were assessed on basis of individually recaptured and marked fish after 168 days in 12 experimental stretches of the river Blanice vodňanská. One part of artificial-reared fish was reared in stew pond (hatchery) (feed on pellets) and the second sort of fish was reared in pond with natural food. The highest recapture (40 %) had wild grayling in control river stretches without stocked hatchery fish. Somewhat lower recapture (28 %) had wild fish in experimental stretches. In comparison with both groups of fish, wild fish carried out in stew pond and natural pond had significantly lower recapture (14 % and 16 %, respectively). Differences in specific grow rate and in down-stream and up-stream migrations were not significant during experimental time among any group. Wild grayling stayed in experimental stretches significantly more than grayling reared in pond. (en)
Title
  • Recapture, growth and movement of wild, pond- and hatchery-reared European grayling (Thymallus thymallus L.) released in small stream
  • Recapture, growth and movement of wild, pond- and hatchery-reared European grayling (Thymallus thymallus L.) released in small stream (en)
  • Návratnost, růst a pohyb divokých, v rybníce a v sádce odchovaných lipanů podhorních (Thymallus thymallus L.) vysazených do přirozeného toku (cs)
skos:prefLabel
  • Recapture, growth and movement of wild, pond- and hatchery-reared European grayling (Thymallus thymallus L.) released in small stream
  • Recapture, growth and movement of wild, pond- and hatchery-reared European grayling (Thymallus thymallus L.) released in small stream (en)
  • Návratnost, růst a pohyb divokých, v rybníce a v sádce odchovaných lipanů podhorních (Thymallus thymallus L.) vysazených do přirozeného toku (cs)
skos:notation
  • RIV/60076658:12610/08:00008937!RIV09-MSM-12610___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • Z(MSM6007665809)
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 391669
http://linked.open...ai/riv/idVysledku
  • RIV/60076658:12610/08:00008937
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Recapture; growth; grayling; Thymallus thymallus; stocking. (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [D0597DC8CD2E]
http://linked.open...v/mistoKonaniAkce
  • Krakow, Polsko
http://linked.open...i/riv/mistoVydani
  • Krakow, Polsko
http://linked.open...i/riv/nazevZdroje
  • Resource Management. Natural, human and material resources for the sustainable development of aquaculture
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...UplatneniVysledku
http://linked.open...iv/tvurceVysledku
  • Randák, Tomáš
  • Turek, Jan
  • Velíšek, Josef
  • Žlábek, Vladimír
  • Slavík, Ondřej
  • Horký, P.
  • Hanák, Radek
http://linked.open...vavai/riv/typAkce
http://linked.open.../riv/zahajeniAkce
http://linked.open...n/vavai/riv/zamer
number of pages
http://purl.org/ne...btex#hasPublisher
  • European Aquaculture Society
https://schema.org/isbn
  • 978-83-60111-30-7
http://localhost/t...ganizacniJednotka
  • 12610
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