Diet of adult pikeperch Sander lucioperca, Eurasian perch Perca fluviatilis, northern pike Esox lucius and European catfish Silurus glanis as top predators in aquatic ecosystems in Serbia was investigated during 2011, in order to understand their relationship to their prey and to investigate their food consumption, feeding and assimilation rate, cannibalism, and habitat segregation. Northern pi...

In this laboratory study, four drywall sanding tools were evaluated in terms of dust generation rates in the respirable and thoracic size classes. In a repeated measures study design, 16 participants performed simulated drywall finishing tasks with each of four tools: (1) ventilated sander, (2) pole sander, (3) block sander, and (4) wet sponge. Dependent variables of interest were thoracic and ...

Aquatic invasions are one of the major threats for freshwater ecosystems. However, in developing countries, knowledge biological invasions, essential implementation appropriate legislation, is often limited if not entirely lacking. In this regard, identification potentially invasive non-native species by risk screening, followed a full assessment ranked as higher risk, enables decision-makers t...

To predict recreational-fishing impacts on freshwater fish species, it is important to understand the interplay between fish populations, anglers and management actions. We use an integrated bioeconomic model to study the importance of fish life-history type (LHT) for determining (i) vulnerability to over-exploitation by diverse angler types (generic, consumptive and trophy anglers), who respon...

Little is known about whether brackish coastal ecosystems attract specific angler types that are characterized by site-specific preferences and behaviors while targeting freshwater fishes living in a low-salinity environment. Using the lagoon (“Bodden”) fisheries northeastern Germany, we compared human dimensions among anglers fishing Bodden sites, primarily other, less-setting-specialized use ...