Karr. J.R., and D.R. Dudley. 1981. Ecological perspectives on water quality goals. Environmental Management 

 5:55-69. 



Kavvecka, B. 1990. The effect of flood-control regulation of a montane stream on the communities of sessile algae. 

 Acta Hydrobiology 32:345-354. 



Krammer, Kurt. 1997a. Die cymbelloiden Diatomeen: Eine Monographic der weltweit bekannten Taxa. Teil 1. 

 AUgemeines and Encyonema Part. J. Cramer, Berlin. 



Krammer, Kurt. 1997b. Die cymbelloiden Diatomeen: Eine Monographic der weltweit bekannten Taxa. Teil 2. 

 Encyonema part., Encyonopsis and Cymbellopsis . J. Cramer, Berlin. 



Krammer, Kurt. 2002. Cymbella. Volume 3 in Diatoms of Europe, Horst Lange-Bertalot, ed. A.R.G. Gantncr 

 Verlag K.G., Germany. 



Krammer, K., and H. Lange-Bertalot. 1986. Bacillariophyceac, Part 2, Volume 1: Naviculaceae. In Ettl, H., J 

 Gerloff, H. Heynig, and D. MoUenhauer (eds.). Freshwater Flora of Middle Europe. Gustav Fischer Publisher, 

 New York. 



Krammer, K., and H. Lange-Bertalot. 1988. Bacillariophyceae, Part 2, Volume 2: Bacillanaceae. Epithemiaceae, 

 Sunrellaceae. In Ettl, H., J. Gerloff, H. Heymg, and D. MoUenhauer (eds.). Freshwater Flora of Middle Europe. 

 Gustav Fischer Publisher, New York. 



Krammer, K., and H. Lange-Bertalot. 1991a. Bacillariophyceae, Part 2, Volume 3: Centrales, Fragilariaceae, 

 Eunotiaceae. In Ettl, H., J. Gerloff, H. Heynig, and D. Mollenliauer (eds.), Freshwater Flora of Middle Europe. 

 Gustav Fischer Publisher, Stuttgart. 



Krammer, K., and H. Lange-Bertalot. 1991b. Bacillariophyceae, Part 2, Volume 4: Achnanthaceae, Critical 



Supplement to Navicula (Lineolatae) and Gomphonema, Complete List of Literature for Volumes 1-4. In Ettl, 

 H., G. Gartner, J. Gerloff, H. Heynig, and D. MoUenhauer (eds.). Freshwater Flora of Middle Europe. Gustav 

 Fischer Publisher, Stuttgart. 



Langc-Bcrtalot, Horst. 1979. Pollution tolerance of diatoms as a criterion for water quality estimation. 

 Nova Hedwigia 64:285-304. 



Lange-Bertalot, Horst. 1993. 85 new taxa and much more than 100 taxonomic clarifications supplementary to 

 Susswasserflora von Mitteleuropa Vol. 2/1-4. J. Cramer, Berlm. 



Lange-Bertalot, Horst. 1996. Rote Liste der limnischen Kieselalgen (Bacillariophyceae) Deutschlands. Schr.-R. f 

 Vegetationskdc, H. 28, pp. 633-677. BfN, Bonn-Bad Godesberg. 



Lange-Bertalot, Horst. 2001. Navicula sensu stricto: 10 Genera Separated from Navicula sensu lata; Frustulia. 

 Volume 2 in Diatoms of Europe, Horst Lange-Bertalot, ed. A.R.G. Gantncr Verlag K.G., Germany. 



Lowe, R.L. 1974. Environmental Requirements and Pollution Tolerance of Freshwater Diatoms. 



EPA-670/4-74-005. U.S. Environmental Protection Agency, National Environmental Research Center, 

 Office of Research and Development, Cincinnati, Ohio. 



McFarland, B.H., B.H. Hill, and W.T. Willingham. 1997. Abnormal Fragilaria spp. (Bacillariophyceae) 

 In streams impacted by mine drainage. Journal of Freshwater Ecology 12(1): 14 1-149. 



NichoUs, K.H., and D.E.Wujek. 2003. Chrysophycean Algae. Chapter 12 (pp. 471-509) in Wehr, J.D., and R.G. 

 Sheath (eds.). Freshwater Algae of North America: Ecology and Classification. Academic Press, New York. 



Palmer, CM. 1969. A composite rating of algae tolerating organic pollution. Journal of Phycology 5:78-82. 



14 



