Matskási István (szerk.): A Magyar Természettudományi Múzeum évkönyve 83. (Budapest 1991)

Lakatos, Gy., Ács, É. ; Buchtijarova, L. N.: Study on reed-periphyton in Lake Velence

Table 2. Percentage distribution of phyla in phytotecton in Lake Velence Phyla Cyanophyta Euglenophyta Chrysophyta Pyrrophyta Chlorophyta 1978 green (%) old (%) 7.8 7.0 2.0 2.0 56.9 56.0 1.0 0.0 32.3 35.0 1988 green (%) old (%) 7.8 9.7 1.0 2.9 62.8 54.4 1.0 1.9 27.4 31.1 Table 3. Percentage distribution of algal phyla in the phytotecton samples taken from green reed in Vendel-tisztás, Nagytisztás and Fürdető Phyla 1978 (%) 1988 (%) Ve Nt Fü Ve Nt Fü Cyanophyta 4.9 3.6 0.0 0.0 2.9 5.1 Euglenophyta 3.3 0.0 13.3 0.0 2.9 2.6 Chrysophyta 68.9 60.7 40.0 69.2 76.6 79.5 Pyrrophyta 0.0 0.0 0.0 2.6 2.9 0.0 Chlorophyta 22.9 35.7 46.7 28.2 14.7 12.8 Table 4. The percentage of dominant diatoms in the periphyton collected from green and old reed in three characteristic parts of Lake Velence 1978 green (%) old (%) Ve Nt Fü Ve Nt Fü Achnanthes minutissima 1.6 .0 23.2 14.1 2.4 22.8 Cocconeis placentula 1.8 1.7 .0 1.1 3.5 .0 Navicula cryptocephala 13.8 5.8 .0 16.7 12.4 5.5 N. obsoleta 8.6 12.5 19.2 20.1 10.1 14.6 Nitzschia linearis .3 .0 50.4 0.8 .0 41.1 Rhoicosphenia abbreviata 12.3 49.4 2.6 8.8 6.5 2.8 Fragilaria ulna 23.3 1.3 0.0 10.3 13.0 .0 other diatoms 28.3 29.3 4.6 28.1 52.1 13.2 1988 green (%) old (%) Ve Nt Fü Ve Nt Fü Achnanthes minutissima 68.5 22.0 62.8 60.8 13.2 22.8 Cocconeis placentula 1.9 1.2 .2 4.9 8.2 11.5 Navicula cryptocephala 1.4 1.2 1.3 1.2 2.1 6.0 N. obsoleta .0 1.2 1.0 .0 .0 .0 Nitzschia linearis .0 4.6 .5 .0 1.3 1.1 Rhoicosphenia abbreviata 1.9 .0 1.3 7.0 7.6 12.6 Fragilaria ulna .9 1.2 .8 .6 7.6 1.5 other diatoms 25.4 68.5 32.1 25.5 60.0 44.5