The world of Hopfs

The world of Hopfs is a children's book which introduces the reader to the simple requirements of evolution: variation, heritability, and selection. The kids will discover that there are some differences between the individuals, and children inherit some of those from their parents. And sometimes the environment determines who can survive and reproduce. By now, The World of Hopfs has been translated into ten different languages. You can download most of them on the project homepage , and you can also order a paperback version there.

Have you seen the fish?

or "Har du set fisken?" in Danish, is a small picture book for children about a little fish. It was made for the research project BONUS INSPIRE to tell children about the fabulous life below the sea. In the BONUS Inspire project, researchers from nine different European countries have studied for four years some of the processes that lead to changes in fish stocks in the Baltic Sea. The goal of the book was to introduce the young reader to the complex mechanisms that lead to the different distribution of species in the ocean. You can download it here (9MB).

Otto the copepod

Otto the Copepod, is an interactive story about a copepod searching for its friends. On his quest, he meets all kinds of organisms. I did the project for the Centre for Ocean Life at DTU Aqua. The idea was to introduce kids and their parents to the major algae and animal groups in the open ocean. The researcher at the center also contributed by adding information about their current work at the Centre for Ocean Life. You can read it here: Otto the copepod.

Research interests

A complete and updated list of my articles can be found at ResearchGate. My research so far focused on a) the influence of anthropogenic environmental change on sexual selection in fish, b) the reproduction and development in marine zooplankton, and c) the effects of multiple stressors on aquatic invertebrates. Currently, I am studying the role of individual trait variation in marine copepods in their response to multiple stressors. In the future, I want to continue to explore how individual trait variation in concert with changing environmental conditions influences the distribution patterns and composition of populations.


If you have any questions or ideas on collaborations I would be delighted if you drop me a message here: jan{@} .

Privacy policy

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