Grethe Rytter Hasle

Grethe Rytter Hasle
Born(1920-01-03)3 January 1920
Died9 November 2013(2013-11-09) (aged 93)
CitizenshipNorwegian
Alma materUniversity of Oslo
Scientific career
Fieldsplanktology
InstitutionsUniversity of Oslo
lecturer 1961–1977
professor 1977–1990
Academic advisorsTrygve Braarud
Author abbrev. (botany)Hasle

Grethe Berit Rytter Hasle (3 January 1920 – 9 November 2013) was a Norwegian planktologist. Among the first female professors of natural science at the University of Oslo, she specialized in the study of phytoplankton.