Sirvi Autor "Pihu, Ervin (Leg.)" järgi

Nüüd näidatakse 1 - 1 1

Lake Peipsi 1971 (Phytoplankton samples)
(1971) Pihu, Ervin (Leg.); Laugaste, Reet (Det.); Eesti Maaülikool. Loodusteaduslikud kogud
Method: Up to 1988 the samples were preserved with formaldehyde (not neutralised), and lots of samples were spoiled: sample sediment was flaked, stuck together, or rusty. By this reason, a number of results of countings are not representative.