Bachelor in Biology with honors, Goteburg University, Sweden, 1979. Doctor of Philosophy, Goteburg University, Sweden, 1986.
Assistant lecturer Goteburg University, 1982-1983, associate professor, 1991-1992, professor marine ecology, head department, 1997-2000. Assistant professor Swedish Natural Science Research Council, 1986-1991, associate professor, 1992-1996. Director Tjärnö Marine Biological Laboratory, Sweden, since 1999.
Member Society Study of Evolution.
Daughter of Gunnar and Ingrid (Svensson) Janson. M.Bo Johannesson, November 20, 1987. Children: Klara, John.