Limnology zoologist) and Einar Naumann (a Swedish botanist) co-founded the International Society of Limnology (SIL, from Societas Internationalis Limnologiae). Forel's original definition of limnology, "the oceanography of lakes", was expanded to encompass the study of all inland waters, and influenced Benedykt Dybowski's work on Lake Baikal. Prominent early American limnologists included G. Evelyn Hutchinson, Ed Deevey, E. A. Birge, and C. Juday. Physical properties of aquatic ecosystems are determined by a combination of heat, currents, waves and other seasonal distributions of environmental conditions. The morphometry of a body of water depends on the type of feature (such as a lake, river,
European Association for the Study of the Liver European Association for the Study of the Liver The European Association for the Study of the Liver (EASL) is a European professional association for liver disease. EASL was founded by the German physician Gustav-Adolf Martini in April 1966, in Marburg, Germany, to promote research on the liver and its pathology and to improve therapy for liver disorders. EASL's founding was inspired by the American Association for the Study of Liver Diseases (AASLD, created in November 1949) and the International Association for the Study of the Liver (IASL, created in 1958). EASL is a non-profit organization, composed solely of individual members,