Zobrazeno 1 - 2
of 2
pro vyhledávání: '"S. P. Birch"'
Publikováno v:
Hydrobiologia. 288:33-38
Freeze dehydration provides instant immobilisation and fixation of living materials to capture particular events and avoids the need for dehydration through an ethanol series for SEM viewing. Examples of the technique are given from freshwater epiphy
Publikováno v:
Transactions of the Botanical Society of Edinburgh. 45:203-212
Summary A survey was made during 1986 of the longitudinal distribution of macrophytes in the River Wear (N-E. England) in order to make comparisons with surveys in 1966 and 1976. The presence or absence of species recognizable with the naked eye was