Last friday of every September takes place the "European Researchers Night". This year, it becomes in the MacaroNight: "the first project to bring together the Macaronesian archipelago in one single night" (www.macaronight.eu). EOMAR team participated in this event celebrated this year on the 27th of September, with the activity named "Learning about marine flora and fauna. Measuring respiration and photosynthesis underwater". With this activity, EOMAR group wants to contribute to divulge scientific culture.