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Description
  • Cormorants grasp prey fish by sharp tip of the beak with the tendency to hit the proximal body area behind gill cover (operculum). They emerge with the prey on water surface before swallowing it head forwards. Fish, which escaped from cormorant´s grasp and/or which could not be swallowed due to their big size, suffer from various deep injuries resulting in consecutive infections and subsequent mortality. The computer assisted image analysis was applied to describe the time dependent course of injury infection and progress. Two-year-old mirror carp ( 250 mm TL, 200 g W) which escaped from cormorant´s beak grasp had injuries ranging over approximately 10% of the total body surface. Immediately after wounding, the damaged epithelium makes about 8 %, and deeper under-epithelial wounds caused by beak tip represent the area of 1- 2 % of the total body surface. With the time progress, these ratios change - deeper necroses represent up to 10 % body surface and healing epithelium makes just 1 - 2 %. Major par
  • Cormorants grasp prey fish by sharp tip of the beak with the tendency to hit the proximal body area behind gill cover (operculum). They emerge with the prey on water surface before swallowing it head forwards. Fish, which escaped from cormorant´s grasp and/or which could not be swallowed due to their big size, suffer from various deep injuries resulting in consecutive infections and subsequent mortality. The computer assisted image analysis was applied to describe the time dependent course of injury infection and progress. Two-year-old mirror carp ( 250 mm TL, 200 g W) which escaped from cormorant´s beak grasp had injuries ranging over approximately 10% of the total body surface. Immediately after wounding, the damaged epithelium makes about 8 %, and deeper under-epithelial wounds caused by beak tip represent the area of 1- 2 % of the total body surface. With the time progress, these ratios change - deeper necroses represent up to 10 % body surface and healing epithelium makes just 1 - 2 %. Major par (en)
  • Kormorán zasahuje svou kořist ostrou špičkou zobáku se snahou uchopit ji v oblasti za skřelovými víčky (operculum). S ulovenou rybou se vynořují na hladinu a polykají ji hlavou napřed. Ryby, které uniknou ze zobáku kormorána nebo které nemohou být polknuty kvůli přílišné velikosti, trpí různě rozsáhlými poraněními s následnými infekcemi a zvýšenou mortalitou. K popisu časového průběhu infekce po poranění byla použita počítačová obrazová analýza obrazu. Dvouletý kapr ( 250 mm TL, 200 g W), který unikl ze zobáku kormorána má poranění zasahující v průměru okolo 10% povrchu těla. Bezprostředně po zranění činí poškozený epitel okolo 8% a hlubší podkožní zranění způsobená špičkou zobáku tvoří okolo 1- 2 % povrchu těla. S postupem času se tento poměr mění - hluboké nekrózy zasahují až 10% povrchu a hojící se epitel tvoří pouze 1 - 2 %. Většina zraněných ryb hyne v důsledku těchto zranění, zvláště pokud je hojení komplikováno saprolegniózou. Dvou- až tříletý tolstolobik bílý, Hypophthalmichthys molitrix, a p (cs)
Title
  • Computer-assisted image analysis in evaluation of fish injuries caused by cormorant (Phalacrocorax carbo sinensis) attacks
  • Počítačová obrazová analýza při hodnocení poranění ryb způsobených útoky kormorána velkého (Phalacrocorax carbo sinensis) (cs)
  • Computer-assisted image analysis in evaluation of fish injuries caused by cormorant (Phalacrocorax carbo sinensis) attacks (en)
skos:prefLabel
  • Computer-assisted image analysis in evaluation of fish injuries caused by cormorant (Phalacrocorax carbo sinensis) attacks
  • Počítačová obrazová analýza při hodnocení poranění ryb způsobených útoky kormorána velkého (Phalacrocorax carbo sinensis) (cs)
  • Computer-assisted image analysis in evaluation of fish injuries caused by cormorant (Phalacrocorax carbo sinensis) attacks (en)
skos:notation
  • RIV/60076658:12610/05:00006257!RIV06-MSM-12610___
http://linked.open.../vavai/riv/strany
  • 23
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
  • 516131
http://linked.open...ai/riv/idVysledku
  • RIV/60076658:12610/05:00006257
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • cormorant; Phalacrocorax carbo; pond culture; carp; silver carp; wounding (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [D4802481AAD6]
http://linked.open...v/mistoKonaniAkce
  • České Budějovice
http://linked.open...i/riv/mistoVydani
  • České Budějovice
http://linked.open...i/riv/nazevZdroje
  • New Challenges in Pond 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
  • Adámek, Zdeněk
  • Flajšhans, Martin
  • Kortan, J.
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
  • New Challenges in Pond Aquaculture. Book of Abstracts.
https://schema.org/isbn
  • 80-85887-56-8
http://localhost/t...ganizacniJednotka
  • 12610
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