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Showing 1 to 12 of 12 for “"Rutilus rutilus"”.
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Verteilung und Ernährung larvaler und juveniler Stadien von Plötze (Rutilus rutilus (L.)) und Barsch (Perca fluviatilis L.) im Biomanipulationsexperiment Feldberger Haussee (Mecklenburg-Vorpommern)
… von larvalen und juvenilen Stadien von Plötze (Rutilus rutilus (L.)) und Barsch (Perca fluviatilis L.) untersucht. Untersuchungsgewässer war der Feldberger Haussee, ein geschichteter eutropher Hardwassersee, der seit über 15 Jahren biomanipuliert wurde. Der Bestand an Barschen war in diesem …
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Factors affecting the growth and recruitment of cyprinid populations of the River Wensum, Eastern England, with specific reference to roach Rutilus rutilus (L.).
1. The roach Rutilus rutilus population of the River Wensum, Eastern England, has long been the topic of deliberation amongst the angling community due to a perceived decline in their catches since the 1970s. Analysis of fish population survey data collected by the Environment Agency and its …
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A comparison of growth rates of coarse fish in gravel-pit lakes in south-east England and of population structure in selected lakes
… variable, the commonest species being roach (Rutilus rutilus L.), bream (Abramis brama L.), tench (Tinca tinca L.), perch (Perca fluviatilis L.) and pike (Esox lucius L.). There was no apparent correlation between fish growth rate and age, size or any other measured parameter of a lake. Two …
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The efficacy of back calculation methods for determining length at age data and the use of such data to determine growth standards, national growth patterns and recruitment dynamics of roach (Rutilus rutilus (L.)), dace (Leuciscus leuciscus (L.)) and chub (Leuciscus cephalus (L.)) in UK rivers
The use of fish scales to age and back-calculate previous lengths at age and gain age and growth information has long been used as a management tool in fisheries. Calcified structures from fish, including otoliths, fin rays, and vertebrae have been used to gain length at age data. Scales however, …
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Predicting the ecological consequences of river management for a riverine cyprinid fish.
… to predict the distribution and growth of roach (Rutilus rutilus), a common, generalist, freshwater fish; known to be typically dominant in heavily modified rivers. Such a model seeks to build on current management models and practices, with emphasis on improving recruitment of juvenile roach. …
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Invasion and evolutionary history of a generalist fish parasite.
… chub Squalius cephalus, dace leuciscus, roach Rutilus rutilus and brown trout Salmo trutta. The environmental DNA method detected S. destruens in water samples from a P. parva eradicated site 2 years after its eradication which emphasizes that preventive measures against pathogen expansion …
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Ecological implications of introducing Leucaspius delineatus (Heckel, 1843) and Pseudorasbora parva (Temminck and Schlegel, 1842) into inland waters in England
… use also overlapped with native species (roach Rutilus rutilus (L.) and common bream Abramis brama (L.)) as young larvae, but this decreased with age. Social network analysis of sunbleak-native species interactions revealed that sunbleak creates significantly stronger social bonds with the …
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Inter-specific hybridization in the fish family Cyprinidae
… hybrids are probably those between roach, Rutilus rutilus (L.), and common bream, Abramis brama (L.).In this study the phenomenon of hybridization amongst species of the Cyprinidae was investigated through:an experimental breeding programme to investigate the nature of inter-species and …
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Fischökologische Funktionalität von Fließgewässerrenaturierungen im oberfränkischen Mainsystem
… Laube (Alburnus alburnus) und Rotauge (Rutilus rutilus) die adulte und juvenile Fischgemeinschaft. In den renaturierten Flussbereichen bildeten sich mit den Jahren spezialisiertere Fischgemeinschaften aus, während die regulierten Bereiche zunehmend von euryöken Arten bestimmt wurden. In …
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The movement ecology of common bream Abramis brama in a highly connected wetland using acoustic telemetry.
… in predicting the foraging locations of roach Rutilus rutilus was compared, with the dual-isoscape approach emerging as the most efficient. Dual-isoscapes were then applied to predicting the movement distances of individual bream in comparison to their movements recorded by acoustic telemetry. …
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Ecological consequences of non-native parasites for native UK fishes.
… host systems were Ergasilus briani and roach Rutilus rutilus and common bream Abramis brama, Bothriocephalus acheilognathi and common carp Cyprinus carpio, and Anguillicoides crassus and the European eel Anguilla anguilla. These parasites were chosen as they reflect a range of life cycle …
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Dominanzverhältnisse, Interaktionen und räumliche Verteilung von Barsch, Plötze und Seeforelle in der mesotrophen Talsperre Saidenbach
Im Rahmen der vorliegenden Arbeit wurden die in der mesotrophen Talsperre Saidenbach bedeutendsten Fischarten (Plötze, Barsch, Seeforelle) bezüglich ihrer Populationsstruktur, der Nahrung und der Habitatnutzung untersucht. Ziel war einerseits, die Analyse der Ausgangssituation und der …