Selected publications

The authors assessed the motivation and wildlife-related value orientations of outdoor recreations in a random telephone survey in Spain. Recreational fishers placed more importance on the motives “to be close to nature,” “to experience tranquility", “to get away from the demands of life", “to relax psychically”, “to stay with family”, “to get exercise”, compared to other recreational groups.

What makes anglers happy? Is catch necessary? A recent global meta-analysis shows that catch and non-catch aspects jointly are relevant to angler satisfaction, but the catch and harvest component have stronger effects than most non-catch aspects.

In a lab study it was tested if light pollution affects thyroid hormones in Eurasian perch. The results show first signs of endocrine disruption in thyroid metabolism after a relatively short exposure of two weeks under high-intensity streetlight conditions. Misbalanced thyroidal status can have serious implications for metabolic rates as well as developmental and reproductive processes.

Many contaminants affect organismal behavior and subsequent ecological outcomes. To improve understanding of the challenges and opportunities for behavioral ecotoxicology within regulatory toxicology/risk assessment, the authors formulated perspectives and recommendations, which promise to serve as a roadmap to advance interfaces among basic and translational sciences, and regulatory practices.

Fishing primarily removes larger and more active fish from populations. It thus acts as a selection factor that favours shy fish, as this study led by IGB shows. 

The authors used a spatially explicit population dynamics model for the barbel to investigate the functional dependencies of sub-habitats. They showed that revitalising only spawning or only juvenile habitats is not effective; the functional unit and a minimum size of habitats are essential. The model helps to predict the revitalisation success on the basis of the size.

The literature on global trends in recreational fishing, the determinants of participation and its social embedding in the public eye are reviewed across the world. In western countries, a sustained shift in public values from anthropocentric to more biocentric viewpoints is documented. This shift elevates biodiversity conservation toward a key goal of contemporary fisheries management.

The study shows: Europe has some of the most fragmented rivers in the world. On average, there is about one barrier per 1.4 kilometres of stream, in Germany even two barriers per kilometre. Small transverse structures with an impoundment height of less than two metres account for the lion's share. The study also shows opportunities for reconnecting streams and rivers.