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Statements

Subject Item
n2:RIV%2F00020711%3A_____%2F13%3A00003759%21RIV14-MZP-00020711
rdf:type
skos:Concept n14:Vysledek
rdfs:seeAlso
http://iz.carnegiemnh.org/crayfish/iaa/fc19_toc.htm
dcterms:description
Austropotamobius torrentium and Astacus astacus ) are endangered crayfish species in Europe. Artificial barriers represent one option for halting the spread of nonnative crayfish species. In Bzovský Stream (Czech Republic, Central Bohemia) the streambed contains stony steps placed to decrease the flow of water. Two stony steps (60 cm and 110 cm high) were evaluated as a movement barrier for crayfish. At the area of confluence of Bzovský and Stroupinský streams, 1887 crayfish were marked with a visible implanted elastomer, whereas 56 recaptured crayfish were marked in Bzovský Stream. In a four-year mark-recapture study, we showed that A. torrentium was able to cross a step 60 cm high and that both A. torrentium and A. astacus were able to cross a perpendicular stony step 110 cm high. These results show that these stony steps do not act as strong movement barriers for crayfish in streams. However, the ability of crayfish to move across a concrete barrier appears to depend on the design of the barrier. Austropotamobius torrentium and Astacus astacus ) are endangered crayfish species in Europe. Artificial barriers represent one option for halting the spread of nonnative crayfish species. In Bzovský Stream (Czech Republic, Central Bohemia) the streambed contains stony steps placed to decrease the flow of water. Two stony steps (60 cm and 110 cm high) were evaluated as a movement barrier for crayfish. At the area of confluence of Bzovský and Stroupinský streams, 1887 crayfish were marked with a visible implanted elastomer, whereas 56 recaptured crayfish were marked in Bzovský Stream. In a four-year mark-recapture study, we showed that A. torrentium was able to cross a step 60 cm high and that both A. torrentium and A. astacus were able to cross a perpendicular stony step 110 cm high. These results show that these stony steps do not act as strong movement barriers for crayfish in streams. However, the ability of crayfish to move across a concrete barrier appears to depend on the design of the barrier.
dcterms:title
The Movement Patterns of Austropotamobius torrentium and Astacus astacus: Is a Stony Step a Barrier? The Movement Patterns of Austropotamobius torrentium and Astacus astacus: Is a Stony Step a Barrier?
skos:prefLabel
The Movement Patterns of Austropotamobius torrentium and Astacus astacus: Is a Stony Step a Barrier? The Movement Patterns of Austropotamobius torrentium and Astacus astacus: Is a Stony Step a Barrier?
skos:notation
RIV/00020711:_____/13:00003759!RIV14-MZP-00020711
n14:predkladatel
n19:ico%3A00020711
n4:aktivita
n9:Z
n4:aktivity
Z(MZP0002071101)
n4:cisloPeriodika
1
n4:dodaniDat
n11:2014
n4:domaciTvurceVysledku
n8:3112241
n4:druhVysledku
n13:J
n4:duvernostUdaju
n7:S
n4:entitaPredkladatele
n12:predkladatel
n4:idSjednocenehoVysledku
89706
n4:idVysledku
RIV/00020711:_____/13:00003759
n4:jazykVysledku
n16:eng
n4:klicovaSlova
central Europe; crayfish; mark-recapture; movement; obstacle
n4:klicoveSlovo
n6:obstacle n6:movement n6:central%20Europe n6:mark-recapture n6:crayfish
n4:kodStatuVydavatele
AT - Rakouská republika
n4:kontrolniKodProRIV
[52B93C07BF11]
n4:nazevZdroje
Freshwater Crayfish
n4:obor
n15:EG
n4:pocetDomacichTvurcuVysledku
1
n4:pocetTvurcuVysledku
2
n4:rokUplatneniVysledku
n11:2013
n4:svazekPeriodika
19
n4:tvurceVysledku
Římalová- Kadlecová, Kateřina Bílý, Michal
n4:zamer
n18:MZP0002071101
s:issn
2076-4324
s:numberOfPages
6