caa a22 4500 475783573 CHVBK 20180406123651.0 cr unu---uuuuu 170329e20001001xx s 000 0 eng 10.1023/A:1008172227611 doi (NATIONALLICENCE)springer-10.1023/A:1008172227611 Grobbelaar Johan Botany and Genetics, University of the Free State, 9300, Bloemfontein, South Africa aut Lithophytic algae: A major threat to the karst formation of show caves [Elektronische Daten] [Johan Grobbelaar] Depending on the intensity, quality and duration ofthe illumination, necessary for viewing show caves,conditions conducive for algal growth are created. Although algae are the major component of this flora,ferns and mosses have also been recorded. Little isknown of the algae, except that they are considered anuisance in terms of discoloration and damage to thekarst formations. The occurrence and possible controlof the algal flora has been studied in the CangoCaves, one of the most important touristic sites inSouth Africa. The algal flora is sparse in speciesdiversity and primitive forms are present. They haveparticular physiological adaptations and usingmicro-oxygen liberation and fluorescence measurements,their photosynthetic characteristics were established. Environmentally friendly control measures wereinvestigated and a solution for their control is proposed. Kluwer Academic Publishers, 2000 nuisance algae nationallicence bio-fouling nationallicence photosynthesis nationallicence lightutilisation nationallicence show caves nationallicence control measures nationallicence Journal of Applied Phycology Kluwer Academic Publishers 12/3-5(2000-10-01), 309-315 0921-8971 12:3-5<309 2000 12 10811 https://doi.org/10.1023/A:1008172227611 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1008172227611 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Grobbelaar Johan Botany and Genetics, University of the Free State, 9300, Bloemfontein, South Africa aut NATIONALLICENCE 773 0- Journal of Applied Phycology Kluwer Academic Publishers 12/3-5(2000-10-01), 309-315 0921-8971 12:3-5<309 2000 12 10811 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer