Contrasting levels of sympatric divergence within lacustrine Arctic charr Salvelinus alpinus forms flock: high differentiation between size forms, low differentiation between seasonal races. - Tambovtseva, Valentina G.; Samusenok, Vitalii P.; Yur'ev, Anatolii L.; Korostelev, Nikolai B.; Khlystov, Viktor S.; Matveev, Arkadii N.; Alekseyev, Sergey S. (Hydrobiologia, 2025)