JOHANN MUEHLEGGER

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Two invasive fish species, the round goby Apollonia melanostoma syn. Neogobius melanostomus (Pallas 1814) and the bighead goby Neogobius kessleri (Günther, 1861), have established a firm population in Austrian waters during the past 15 years. As there have been no records of the parasite fauna from these populations, a total of 79 specimens of A.(More)
Im Rahmen parasitologischer Untersuchungen an der jüngst nach Österreich eingewanderten Fischart Schwarzmundgrundel Apollonia melanostoma (Pallas, 1814) von 3 Standorten an der Donau im Jahr 2007 wurde der digene Trematode Bucephalus polymorphus Baer, 1827 zum ersten Mal in Österreich nachgewiesen. Enzystierte Metazerkarien des Wurmes wurden auf den(More)
Since 1999, regional retail and wholesale gasoline markets in the United States have experienced significant price volatility, both intertemporally and across geographic markets. In particular, gasoline prices in California, Illinois and Wisconsin have spiked occasionally well above gasoline prices in nearby states. The three chapters of my thesis study the(More)
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