I reported previously (see here) on Israelis making use of jellyfish. Now, scientists at the University of Haifa are developing a filter made of jellyfish mucus to isolate microplastics in the oceans. The research is part of the International Go Jelly project, funded by the EU Horizon 2020 program.
http://nocamels.com/2018/08/jellyfish-plastic-waste-israeli-scientists/