Clemens Schauberger¹, Bo Thamdrup², Mathias Middelboe³, Blandine Trouche⁴, Sophie Arnaud Haond⁴, Lois Maignien⁵ and Ronnie N Glud¹, (1)University of Southern Denmark, Department of Biology, Odense, Denmark, (2)University of Southern Denmark, Odense, Denmark, (3)University of Copenhagen, Department of Biology, København K, Denmark, (4)IFREMER, Plouzané, France, (5)University of Western Brittany, Brest, France