About: The effect of inter- and intra-specific competition on survival and growth rate of native juvenile noble crayfish Astacus astacus and alien spiny-cheek crayfish Orconectes limosus     Goto   Sponge   NotDistinct   Permalink

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Description
  • Juvenile noble crayfish, Astacus astacus and spiny-cheek crayfish, Orconectes limosus were reared from the 2nd and the 3rd developmental stage (i.e. since the stage of independence), respectively, until the end of the growing season. The first period revealed very low survival rate of O. limosus in the communal stock (7+/-6.2%), probably caused by predation of A. astacus. Separately reared O. limosus proved significantly higher survival rate (49+/-9.2%) than those in the communal stock with A. astacus. The latter species also showed the highest survival rate in this case (90+/-7.1%). This was not found to differ from the survival rate of separately reared noble crayfish (86+/-3.1%). In general, both the significant effect of bigger size of A. astacus than that of O. limosus and higher intra-specific cannibalism of O. limosus were reflected during the first phase of rearing. Size and weight of both species were equivalent 11 weeks after hatching (8 weeks of rearing). The higher cumulative survival rate
  • Juvenile noble crayfish, Astacus astacus and spiny-cheek crayfish, Orconectes limosus were reared from the 2nd and the 3rd developmental stage (i.e. since the stage of independence), respectively, until the end of the growing season. The first period revealed very low survival rate of O. limosus in the communal stock (7+/-6.2%), probably caused by predation of A. astacus. Separately reared O. limosus proved significantly higher survival rate (49+/-9.2%) than those in the communal stock with A. astacus. The latter species also showed the highest survival rate in this case (90+/-7.1%). This was not found to differ from the survival rate of separately reared noble crayfish (86+/-3.1%). In general, both the significant effect of bigger size of A. astacus than that of O. limosus and higher intra-specific cannibalism of O. limosus were reflected during the first phase of rearing. Size and weight of both species were equivalent 11 weeks after hatching (8 weeks of rearing). The higher cumulative survival rate (en)
  • Byl proveden odchov ráčat raka říčního a raka pruhovaného od 2.vývojového stádia resp.3. vývojového stádia (osamostatnění od samic) do konce vegetační sezóny. V prvních fázích odchovu bylo zjištěno velmi nízké přežití raka pruhovaného oproti raku říčnímu a to jak při samostatném (49+/-9.2%), tak společném odchovu (7+/-6.2%). Projevil se zde jednak statisticky významný vliv větší velikosti raků říčních oproti raku pruhovanému a dále také větší vnitrodruhový kanibalismus u raka pruhovaného. V 11 týdnech věku ráčat (po 8 týdnech odchovu) došlo k vyrovnání velikosti u obou druhů. Na konci odchovu již nebyly v přežití staticky významné rozdíly. Rak pruhovaný však dosáhl na konci vegetační sezóny vyšší velikosti a hmotnosti (29,3+/-5,17 mm a 616,4+/-412,53 mg) než rak říční (21,2+/-1,82 mm a 229,9+/-59,45 mg). Samostatné a společné odchovy se nelišily. Růst raka pruhovaného byl rychlejší než růst raka říčního. (cs)
Title
  • The effect of inter- and intra-specific competition on survival and growth rate of native juvenile noble crayfish Astacus astacus and alien spiny-cheek crayfish Orconectes limosus
  • Vliv vnitro- a mezidruhové konkurence na přežití a růst původního raka říčního Astacus astacus a nepůvodního raka pruhovaného Orconectes limosus (cs)
  • The effect of inter- and intra-specific competition on survival and growth rate of native juvenile noble crayfish Astacus astacus and alien spiny-cheek crayfish Orconectes limosus (en)
skos:prefLabel
  • The effect of inter- and intra-specific competition on survival and growth rate of native juvenile noble crayfish Astacus astacus and alien spiny-cheek crayfish Orconectes limosus
  • Vliv vnitro- a mezidruhové konkurence na přežití a růst původního raka říčního Astacus astacus a nepůvodního raka pruhovaného Orconectes limosus (cs)
  • The effect of inter- and intra-specific competition on survival and growth rate of native juvenile noble crayfish Astacus astacus and alien spiny-cheek crayfish Orconectes limosus (en)
skos:notation
  • RIV/60076658:12610/07:00007812!RIV08-AV0-12610___
http://linked.open.../vavai/riv/strany
  • 85-94
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GP206/03/D064), P(IAA601870701), P(QF3028), Z(MSM6007665809)
http://linked.open...iv/cisloPeriodika
  • 1
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
  • 418970
http://linked.open...ai/riv/idVysledku
  • RIV/60076658:12610/07:00007812
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Orconectes limosus; Astacus astacus; competition; interaction; communal stock; cheliped injuries (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • NL - Nizozemsko
http://linked.open...ontrolniKodProRIV
  • [34EEB89654F7]
http://linked.open...i/riv/nazevZdroje
  • Hydrobiologia
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • 590
http://linked.open...iv/tvurceVysledku
  • Buřič, Miloš
  • Kozák, Pavel
  • Policar, Tomáš
  • Hamáčková, Jitka
  • Lepičová, Andrea
http://linked.open...n/vavai/riv/zamer
issn
  • 0018-8158
number of pages
http://localhost/t...ganizacniJednotka
  • 12610
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