Durring the year 1972 to 1975 samples of benthic algae were collected from 22 selected river stations in the Juskei-Crocodile river system. Some 250 diatoms taxa were identified from these samples
Reference:
Schoeman, FR. 1982. Diatoms of the jukskei-crocodile river system (transvaal, republic of South Africa): A preliminary checklist. J. S. Afr. Bot 48 (3), pp 295-310
Schoeman, F. (1982). Diatoms of the jukskei-crocodile river system (transvaal, republic of South Africa): a preliminary check list. http://hdl.handle.net/10204/4881
Schoeman, FR "Diatoms of the jukskei-crocodile river system (transvaal, republic of South Africa): a preliminary check list." (1982) http://hdl.handle.net/10204/4881
Schoeman F. Diatoms of the jukskei-crocodile river system (transvaal, republic of South Africa): a preliminary check list. 1982; http://hdl.handle.net/10204/4881.