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Nolte, A. W., Freyhof, J., Stemshorn, K. C., & Tautz, D. (2005). An invasive lineage of sculpins, Cottus sp. (Pisces, Teleostei) in the Rhine with new habitat adaptions has originated from hybridization between old phylogeographic groups. Proc. R. Soc. B, 2005(272), 2379?2387.
Zusammenfassung: Fish abundance surveys in the Rhine system have shown in the past two decades that there is a rapid upriver invasion of a freshwater sculpin of the genus Cottus. These fish are found in habitats that are atypical for the known species Cottus gobio, which is confined to small cold streams within the Rhine drainage. Phylogeographic analysis based on mitochondrial haplotypes and diagnostic single nucleotide polymorphisms indicates that the invasive sculpins are hybrids between two old lineages from the River Scheldt drainage and the River Rhine drainage, although it is morphologically more similar to the Scheldt sculpins. Most importantly, however, the invasive population possesses a unique ecological potential that does not occur in either of the source populations from the Rhine or the Scheldt, which allows the colonization of new habitats that have previously been free of sculpins. Microsatellite analysis shows that the new lineage is genetically intermediate between the old lineages and that it forms a distinct genetic group across its whole expansion range.We conclude that hybridization between long separated groups has lead to the fast emergence of a new, adaptationally distinct sculpin lineage.
Schlüsselwörter: Fisch, Groppe, Cottus, Artbildung, Morphologie, Genetik, Habitat
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Gozlan, R. E., Feist, S. W., Martin, P., & Kent, M. L. (2005). Disease threat to European fish. Nature, 435(6), 1046.
Schlüsselwörter: Fisch, Leucaspius delineatus, Moderlieschen, Parasit, Sphaerothecum destruens
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Hammer, C. (1985). Feeding behaviour of roach (Rutilus rutilus) larvae and the fry of perch (Perca fluviatilis) in Lake Lankau. Arch. Hydrobiol., 103(1), 61?74.
Schlüsselwörter: Fisch, Rotauge, Rutilus rutilus, Barsch, Perca fluviatilis, Nahrung, Larve, Wachstum
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Schreiber, A., & Sosat, R. (2007). The genetic population structure of the Eurasian fine-scaled minnow, Phoxinus phoxinus (LINNAEUS 1758), in the contact area of the upper Rhine and Danube rivers (southwestern Germany). Senckenbergiana / Senckenbergiana biologica. SenckenbergischeNaturforschende Gesellschaft, 87(2), 195?211.
Schlüsselwörter: Fisch, Elritze, Phoxinus phoxinus, Genetic
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Riffel, M., & Schreiber, A. (1998). Morphometric differentiation in populations of the Central European sculpin Cottus gobio L., a fish with deeply divergent genetic lineages (Vol. 76).
Schlüsselwörter: Fisch, Population, Genetik, Groppe, Mühlkoppe, Cottus gobio, Verbreitung
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Slavik, O., Horky, P., Bartos, L., Kola, J., Ova, R., & Randa, T. (2007). Diurnal and seasonal behaviour of adult and juvenile European catfish as determined by radio-telemetry in the River Berounka, Czech Republic. Journal of Fish Biology, 71, 101?114.
Schlüsselwörter: Fisch, Wels, Silurus glanis, Wanderung
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Albuquerque, C. Q., & Muelbert, J. H. (2004). The use of haematoxylin stain to improve contrast of growth increments in otoliths of larval whitemouth croaker. Journal of Fish Biology, 64, 794?797.
Schlüsselwörter: Fisch, Otolith, Wachstum, Alter, Bestimmung
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Weisberg, S. (1993). Using Hard-part Increment Data to Estimate Age and Environmental Effects. Can. J. Fish. Aquat. Sci., 50, 1229?1237.
Schlüsselwörter: Fisch, Alter, Methode, Altersbestimmung, Statistik, Mathematik, Schuppe, Knochenstruktur
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Bless, R. (1997). Threatened fishes of the world: Gobio uranoscopus (Agassiz, 1828) (Vol. 49).
Schlüsselwörter: Fisch, Bestimmung, Beschreibung, Gobio
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Horppila, J. (2000). The effect of length frequency ranges on the back-calculated lengths of roach, Rutilus rutilus (L.). Fisheries Research, 45, 21?29.
Schlüsselwörter: Fisch, Rotauge, Rutilus rutilus, Länge, Rückberechnung, Wachstum
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