Lisa W von Friesen

University of Copenhagen · Department of Biology

Did you know that plastic waste is so widespread across our planet that it can be found even in the far north, in the Arctic Ocean? Plastic ends up in the environment in many different ways, and researchers are trying to figure out how this pollution affects the animals and plants living in environments that contain plastic waste. Here comes a mess...

This study examines the impact of boldness on foraging competition of the highly invasive round goby Neogobius melanostomus Pallas 1815. Individual risk tolerance, or boldness, was measured as the time to resume movement after a simulated predation strike. Fish that resumed movement faster were categorized as “bold”, fish that took more time to res...

The Arctic Ocean is the smallest ocean on Earth, yet estimated to play a substantial role as a global carbon sink. As climate change is rapidly changing fundamental components of the Arctic, it is of local and global importance to understand and predict consequences for its carbon dynamics. Primary production in the Arctic Ocean is often nitrogen-l...

Marine litter pollution affects oceans globally and has today also made its way to the pristine arctic environment adding to the microlitter from local pollution sources. Marine litter pollution is recognized as a serious threat to the marine environment at all levels, from the UN to regional (EU, OSPAR, HELCOM) and national authorities. The risk p...

Human activities leave traces of marine litter around the globe. The Arctic is, despite its remoteness, emerging as an area of no exception to this environmental issue. Arctic sea ice has previously been found to constitute a temporal sink of microplastics, but the potential release and subsequent fate of microplastics in the marine environment are...

Differences between individuals in behavioral type (i.e. animal personality) are ecologically and evolutionarily important because they can have significant effects on fitness components such as growth and predation risk. In the present study we ere used the invasive round goby (Neogobius melanostomus) from an established population in controlled e...

Standardized methods for the digestion of biota for microplastic analysis are currently lacking. Chemical methods can be effective, but can also cause damage to some polymers. Enzymatic methods are known to be gentler, but often laborious, expensive and time consuming. A novel tissue digestion method with pancreatic enzymes and a pH buffer (Tris) i...

Plastic pollution is recognized as a serious threat to the marine environment by the UN, the EU through the Marine Strategy Framework Directive, the Arctic council, the Nordic council, and national governments worldwide. Marine litter may reach the Arctic with ocean currents from global and regional sources, but may also originate from local emissi...

Measurements of anthropogenic microlitter/microplastic in wastewater from Greenland and Svalbard.