Siligato, S., & Gumpinger, C. (2006). Zur Laichwanderung des Perlfisches (Rutilus meidingeri) in die Seeache zwischen Mondsee und Attersee (Vol. 59).
Schlüsselwörter: Fisch, Perlfisch, Rutilus meidingeri, Wanderung, Fortpflanzung
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Espanhol, R., Almeida, P. R., & Alves, M. J. (2007). Evolutionary history of lamprey paired species Lampetra fluviatilis (L.) and Lampetra planeri (Bloch) as inferred from mitochondrial DNA variation. Molecular Ecology, 16(9), 1909?1924.
Zusammenfassung: A remarkable trend in the evolution of lampreys is the occurrence in most genera of 'paired species', in which the parasitic anadromous lampreys are believed to have given rise to nonparasitic freshwater resident populations. The present work examines the phylogeography of the European paired species Lampetra fluviatilis and Lampetra planeri, in an attempt to elucidate species pair evolutionary history. We studied sequence variation in cytochrome b and ATPase 6, 8 mitochondrial genes in 63 individuals from 21 localities of the paired species throughout their distribution range. Results from the phylogenetic and nested clade analyses were largely consistent, suggesting the existence of three major evolutionary lineages: lineage I and possibly lineage II are widespread throughout Europe, while the most ancestral lineage III is apparently restricted to the Iberian Peninsula. The high genetic diversity observed in the Iberian Peninsula is probably the result of refugial persistence and subsequent accumulation of variation over several ice ages, whereas the low levels of genetic diversity observed in central and northern Europe should reflect a rapid postglacial colonization. Results suggest that L. planeri originated within at least two distinct evolutionary lineages, rejecting the single origin hypothesis. The observed lack of taxa monophyly within lineage I may be the result of ongoing gene flow if the two taxa are alternate life-history forms of a single species. However, structure within lineage I is also consistent with the hypothesis of divergence of taxa after postglacial dispersion (around 2000 generations ago) with incomplete lineage sorting. Further testing of the alternative hypotheses is warranted.
Schlüsselwörter: Neunauge, Bachneunauge, Lampetra planeri, Flussneunauge, Lampetra fluviatilis, DNA, Phylogeographie
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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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Tan, X., Kim, D., Usher, N., Laboy, D., Jackson, J., Kapetanovic, A., et al. (2006). An Autonomous Robotic Fish for Mobile Sensing. In Proceedings of the 2006 IEEE/RSJ International Conference on Intelligent Robots and Systems (pp. 5424?5429).
Zusammenfassung: In this paper an innovative approach to robotics education is reported, where hands-on learning is integrated with cutting-edge research in the development of an autonomous, biomimetic robotic fish. The project aims to develop an energy-efficient, noiseless, untethered swimming robot for mobile sensing purposes. The robot is propelled by an ionic polymer-metal composite (IPMC) actuator and equipped with a GPS receiver, a ZigBee wireless communication module, a microcontroller, and a temperature sensor for autonomous navigation, control, and sensing. The two phases of the development are described, emphasizing both the technical approaches and the learning paradigms. The developed robotic fish will be further used as an educational kit for K-12 students and as a research tool for investigating multi-robot collaborative sensing.
Schlüsselwörter: Technik, Roboter, GPS, Umweltdaten
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Jung, M., Ratschan, C., & Zauner, G. (2019). Erstnachweis des Steingreßlings (Romanogobio uranoscopus Agassiz, 1828) im Inn und Verbreitung im deutschsprachigen Raum. Österreichs Fischerei, 72(7), 177?189.
Schlüsselwörter: Steingreßling, Romanogobio uranoscopus, Neozoo, Vorkommen, Österreich
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Hundritsch, L., Keil, F., Prinz, H., Sasano, B., Hauer, W., Bammer, V., et al. (2019). Verbreitungskarten beruhend auf GZÜ-Daten von 2010 – 2012 und 2013- 2015. Österreichs Fischerei, 72(1), 9?26.
Schlüsselwörter: Fisch, Österreich, Vorkommen, Barbe, Brachse, Flussbarsch, Güster, Ukelei, Nase, Rotauge, Schneider, Strömer, Zander
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Schenekar, T., Sturm, S., & Weiss, S. J. (2019). Auf den Spuren der Äsche im Gesäuse: Nachweis und Kartierung von Thymallus thymallus in der Enns und dem Johnsbach mittels eDNA. Österreichs Fischerei, 72(11/12), 296?309.
Zusammenfassung: The Enns River runs through the Gesäuse National Park and is generally characterized by relatively pristine morphological features. During the late 1990s the fish densities of this stretch collapsed, including the dominant species of this river zone, the European grayling. River restoration efforts have been undertaken to improve habitat quality and connectivity of the Enns River but also its largest tributary in the Gesäuse, the Johnsbach River, which had been heavily alternd for flood protection. However, due to intense sediment transport in the Johnsbach River, the newly built ground sills might still pose barriers for fish migrating from the Enns into the Johnsbach River. To check whether grayling enter the Johnsbach for spawning and whether these sills are passable for grayling during their migrations, we took environmental DNA samples from both the Enns River and the Johnsbach River and applied a qPCR protocol originally developed for Arctic grayling. We received positive signals of European grayling in the Enns River, as well as the Johnsbach River but only during the spring spawning season. This suggests that at least a few grayling individuals manage to pass the sills and migrate into the Johnsbach River to attempt to spawn.
Schlüsselwörter: Fisch, Äsche, Thymallus thymallus, Genetik, eDNA, Nachweis, Vorkommen, Methode
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Schmall, B. (2015). Die Nase im Bundesland Salzburg – Teil1: Historische Verbreitung und wirtschaftliche Bedeutung. Österreichs Fischerei, 68(11/12), 297?311.
Schlüsselwörter: Fisch, Nase, Chondrostoma nasus, Historisch, Fischerei, Österreich, Fangmethode, Methode
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Zbinden, S., Pilotto, J. - D., & Durouvenoz, V. (2004). Biologie, Gefährdung und Schutz der Groppe (Cottus gobio) in der Schweiz. Mitteilungen zur Fischerei, 77. Bern: Bundesamt für Umwelt, Wald und Landschaft (BUWAL).
Zusammenfassung: Die Groppe (Cottus gobio) ist in der Schweiz der einzige Vertreter aus der Familie der Cottidae. Dieser Kleinfisch lebt hauptsächlich in Forellenbächen, seltener in Seen. Die Groppe ist bodenorientiert, besitzt keine Schwimmblase und ernährt sich von Invertebraten.
Der Eintritt in die Geschlechtsreife sowie die Laichzeit sind je nach Gewässer unterschiedlich. Zur Vollendung des Lebenszyklus benötigt die Groppe auf engem Lebensraum ein Mosaik verschiedener Habitatstrukturen. Die Groppe wird durch folgende Faktoren bedroht: Lebensraumveränderungen, Wanderhindernisse verschiedener
Art und Gewässerbelastungen durch Stoffe, deren Auswirkungen teilweise noch unbekannt sind. Die wichtigsten Schutzmassnahmen bestehen in der Revitalisierung von stark verbauten Fliessgewässern, der Entfernung oder Sanierung von Wanderhindernissen sowie in der Bekämpfung der Gewässerverschmutzung.
Schlüsselwörter: Fisch, Groppe, Cottus gobio, Gefährdung, Verbreitung, Schweiz, Nahrung, Kartierung
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Kirchhofer, A. (1996). Biologie, Gefährdung und Schutz der Neunaugen in der Schweiz. Mitteilungen zur Fischerei, 56. Bern: Bundesamt für Umwelt, Wald und Landschaft (BUWAL).
Schlüsselwörter: Neunauge, Meerneunauge, Petromyzon marinus, Flussneunauge, Lampetra fluviatilis, Bachneunauge, Lampetra planeri, Vorkommen, Biologie, Kartierung, Gefährdung, Renaturierung
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