Heinrich Riikoja
![Heinrich Riikoja](https://upload.wikimedia.org/wikipedia/commons/3/3b/Heinrich_Riikoja%2C_1920s.jpg)
From 1910 to 1918, he studied at the University of Tartu, initially chemistry and later natural sciences. He participated in the Estonian War of Independence. From 1919 to 1958 he taught at the University of Tartu.
From 1920 onward, he directed investigations of Estonian inland bodies of water. He is known as the founder of Estonian hydrobiology. Among other things, he compiled a list of Estonian lakes and a list of Estonian fishes.
In 1940 he was the rector of the University of Tartu.
From 1922 to 1943, he was the representative of Estonia to International Society of Limnology.
Awards: * 1945: Estonian SSR merited scientist * 1977: Estonian SSR state prize Provided by Wikipedia
1
Published: 1991
Superior document: Hydrobiologische Untersuchungen 18