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Description
  • Otter (Lutra lutra) diet was studied by analysing of 180 spraints and 29 partly consumed fish remains found in winter around fishponds in South Bohemia. The proportion of fish found in spraints was 95.6% of all prey items, roach (Rutilus rutilus), topmouth gudgeon (Pseudorasbora parva) and common carp (Cyprinus carpio) being the most numerically abundant species. Carp dominated the diet by mass (47.8%), whilst roach and ?other commercial fish species? formed 21.8 and 15.3% of total biomass, respectively. Small fish (< 200 mm) predominated in the diet and only 4.0% of all fish found in spraints exceeded 300 mm TL. Large fish remains were very scarce in spraints and were best recorded from uneaten prey remains. The original length of carp corpses ranged between 283 and 530 mm TL, and the proportion of body mass consumed varied between 5.0 ? 90.1%. The length of pike remains ranged from 386 to 754 mm TL, of which 84.0% of body mass on average was consumed by otters.
  • Otter (Lutra lutra) diet was studied by analysing of 180 spraints and 29 partly consumed fish remains found in winter around fishponds in South Bohemia. The proportion of fish found in spraints was 95.6% of all prey items, roach (Rutilus rutilus), topmouth gudgeon (Pseudorasbora parva) and common carp (Cyprinus carpio) being the most numerically abundant species. Carp dominated the diet by mass (47.8%), whilst roach and ?other commercial fish species? formed 21.8 and 15.3% of total biomass, respectively. Small fish (< 200 mm) predominated in the diet and only 4.0% of all fish found in spraints exceeded 300 mm TL. Large fish remains were very scarce in spraints and were best recorded from uneaten prey remains. The original length of carp corpses ranged between 283 and 530 mm TL, and the proportion of body mass consumed varied between 5.0 ? 90.1%. The length of pike remains ranged from 386 to 754 mm TL, of which 84.0% of body mass on average was consumed by otters. (en)
  • Potrava vydry říční (Lutra lutra) byla studována na základě analýzy 180 vzorků exkrementů a 29 zčásti zkonzumovaných ryb nalezených v zimním období v blízkosti rybníků v jižních Čechách. Podíl ryb zjištěných v exkrementech činil 95.6% celkové kořisti s převahou plotice obecné (Rutilus rutilus), střevličky východní (Pseudorasbora parva) a kapra obecného (Cyprinus carpio). Kapr převažoval i v hmotnostním podílu (47.8%), zatímco plotice a ?ostatní druhy? tvořily 21.8, resp. 15.3% celkové biomasy. V potravě převládaly drobnější ryby (< 200 mm) a pouze zbytky 4.0% všech ryb nalezených v exkrementech patřily jedincům větším než 300 mm TL. Zbytky velkých ryb jsou v exkrementech velmi ojedinělé a byly nejlépe patrné jako nezkonzumované zbytky. Původní délka požerků kapra se pohybovala mezi 283 a 530 mm TL, a podíl zkonzumovaných částí těla činil 5.0 ? 90.1%. Délka zčásto zkonzumovaných štik se pohybovala mezi 386 a 754 mm TL, přičemž bylo vydrou zkonzumováno v průměru 84.0% hmotnosti těla (cs)
Title
  • Otter (Lutra lutra) winter predation on carp ponds
  • Zimní predace vydry říční (Lutra lutra) na kaprových rybnících (cs)
  • Otter (Lutra lutra) winter predation on carp ponds (en)
skos:prefLabel
  • Otter (Lutra lutra) winter predation on carp ponds
  • Zimní predace vydry říční (Lutra lutra) na kaprových rybnících (cs)
  • Otter (Lutra lutra) winter predation on carp ponds (en)
skos:notation
  • RIV/60076658:12610/08:00008932!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
  • 385562
http://linked.open...ai/riv/idVysledku
  • RIV/60076658:12610/08:00008932
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Otter diet; spraint analysis; excessive hunting; fish remains (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [6C332A561516]
http://linked.open...v/mistoKonaniAkce
  • Krakow, Polsko
http://linked.open...i/riv/mistoVydani
  • Olsztyn, 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
  • Adámek, Zdeněk
  • Poláková, S.
  • Kortan, D.
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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