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Statements

Subject Item
n2:RIV%2F68081766%3A_____%2F13%3A00392847%21RIV14-GA0-68081766
rdf:type
n6:Vysledek skos:Concept
dcterms:description
Several Ponto-Caspian gobiid species have recently expanded their ranges in Europe and North America. This is the first study to demonstrate passive downstream dispersal (drift) of the round goby (Neogobius melanostomus) and tubenose goby (Proterorhinus semilunaris) in newly colonised areas (River Dyje, Danube basin), a factor that could play an important role in their dispersal. Drift duration (i.e. number of dates on which the species was caught) in round goby was longer than that of both native species and tubenose goby, providing a possible advantage. Size of drifting fish was restricted to a narrow range of 6–8 mm and 5–8 mm for round and tubenose goby, respectively. Drift in both species occurred almost completely during hours of darkness (<1 lux) and fish size did not vary throughout the night. In both species, drift density increased significantly during the first hour after dusk. Round goby density gradually decreased up to dawn, while tubenose goby density varied throughout the night with no clear pattern. Drift of early life stages appears to be an important phenomenon that has not received adequate attention in studies of round and tubenose goby ecology and dispersal. Several Ponto-Caspian gobiid species have recently expanded their ranges in Europe and North America. This is the first study to demonstrate passive downstream dispersal (drift) of the round goby (Neogobius melanostomus) and tubenose goby (Proterorhinus semilunaris) in newly colonised areas (River Dyje, Danube basin), a factor that could play an important role in their dispersal. Drift duration (i.e. number of dates on which the species was caught) in round goby was longer than that of both native species and tubenose goby, providing a possible advantage. Size of drifting fish was restricted to a narrow range of 6–8 mm and 5–8 mm for round and tubenose goby, respectively. Drift in both species occurred almost completely during hours of darkness (<1 lux) and fish size did not vary throughout the night. In both species, drift density increased significantly during the first hour after dusk. Round goby density gradually decreased up to dawn, while tubenose goby density varied throughout the night with no clear pattern. Drift of early life stages appears to be an important phenomenon that has not received adequate attention in studies of round and tubenose goby ecology and dispersal.
dcterms:title
Downstream drift of round goby (Neogobius melanostomus) and tubenose goby (Proterorhinus semilunaris) in their non-native area Downstream drift of round goby (Neogobius melanostomus) and tubenose goby (Proterorhinus semilunaris) in their non-native area
skos:prefLabel
Downstream drift of round goby (Neogobius melanostomus) and tubenose goby (Proterorhinus semilunaris) in their non-native area Downstream drift of round goby (Neogobius melanostomus) and tubenose goby (Proterorhinus semilunaris) in their non-native area
skos:notation
RIV/68081766:_____/13:00392847!RIV14-GA0-68081766
n6:predkladatel
n8:ico%3A68081766
n3:aktivita
n4:I n4:P
n3:aktivity
I, P(GAP505/11/1768)
n3:cisloPeriodika
3
n3:dodaniDat
n12:2014
n3:domaciTvurceVysledku
n15:5540690 n15:9515739 n15:7727534 n15:6271685
n3:druhVysledku
n18:J
n3:duvernostUdaju
n10:S
n3:entitaPredkladatele
n7:predkladatel
n3:idSjednocenehoVysledku
70527
n3:idVysledku
RIV/68081766:_____/13:00392847
n3:jazykVysledku
n19:eng
n3:klicovaSlova
invasive species; dispersal; drift; round goby; tubenose goby; Gobiidae
n3:klicoveSlovo
n9:Gobiidae n9:invasive%20species n9:drift n9:round%20goby n9:tubenose%20goby n9:dispersal
n3:kodStatuVydavatele
DK - Dánské království
n3:kontrolniKodProRIV
[F59656BB838F]
n3:nazevZdroje
Ecology of Freshwater Fish
n3:obor
n17:EH
n3:pocetDomacichTvurcuVysledku
4
n3:pocetTvurcuVysledku
4
n3:projekt
n16:GAP505%2F11%2F1768
n3:rokUplatneniVysledku
n12:2013
n3:svazekPeriodika
22
n3:tvurceVysledku
Janáč, Michal Jurajda, Pavel Šlapanský, Luděk Valová, Zdenka
n3:wos
000319872900009
s:issn
0906-6691
s:numberOfPages
9
n5:doi
10.1111/eff.12037