In this work, two aspects on the ecology of the mysid Limnomysis benedeni are investigated. First, the development time of the eggs are measured at different temperatures, which are in range of the conditions of Lake Constance. In the field, the life cycle of Limnomysis benedeni is described by a monthly sampling. Both aspects are combined to estimate the changes of individually birth rates during the reproductive season.
In a second topic of this work, the predation of invertebrates on Limnomysis benedeni is estimated in laboratory experiments. Dikerogammarus villosus, the most common invertebrate predator in the littoral of Lake Constance, and in comparison Gammarus roeseli are the tested predators. In this study differences between the predator species and habitats on the predations on Limnomysis benedeni are compared.