Growth biorhythms in the freshwater pearl mussel Margaritifera margaritifera (Bivalvia, Margaritiferidae). Livojoki river population (Karelia)Alexey A. Zotin, Svetlana A. Murzina and Evgeny P. IeshkoKnowl. Manag. Aquat. Ecosyst., 419 (2018) 44DOI: https://doi.org/10.1051/kmae/2018033