Hajnalka HORVÁTH PhD

former colleague ('alumni')
BLI Department of Hidrobotany
horvath.hajnalka [at] okologia.mta.hu
+36 87 448-244 / 128
Brief description of the main scopes: 

Determination of the cyanobacterial N2-fixation using stabile isotope (15N) technique; to calculate the contribution of N2 fixation to the external N-load of lakes; to estimate the contribution of N2 fixation to the algae N-demand and to examine the effect of different environmental factors on N2 fixation. Working out an effective and reproducible protocol for phycocyanin determination in pure cultures of N2-fixing cyanobacteria species, lakes and reservoirs; to describe a relationship between the phytoplankton phycocyanin contentration and species composition, which allows the estimation of cyanobacterial biomass based on phycocyanin concentration.

Main profile in keywords: 
fitoplankton, cianobaktériumok, N-forgalom
Selected publications:


Árva, D., Tóth, M., Horváth, H., Nagy, S.A., Specziár, A. (2015): The relative importance of spatial and environmental processes in distribution of benthic chironomid larvae within a large and shallow lake Hydrobiologia 742: pp. 249–266.
Palmer, S.C.J., Hunter, P.D., Lankester, T., Hubbard, S., Spyrakos, E., N. Tyler, A., Présing, M., Horváth, H., Lamb, A., Balzter, H., Tóth, V.R. (2015): Validation of Envisat MERIS algorithms for chlorophyll retrieval in a large, turbid and optically-complex shallow lake. Remote Sensing of Environment 157, 158–169


Horváth H, AW Kovács, C Riddick, M Présing (2013): Extraction methods for phycocyanin determination in freshwater filamentous cyanobacteria and their application in a shallow lake European Journal of Phycology 48(3): pp. 278-286.
Palmer S C J, Pelevin V V, Goncharenko I, Kovács W A, Zlinszky A, Présing M, Horváth H, Nicolás-Perea V, Balzter H, Tóth VR (2013): Ultraviolet Fluorescence LiDAR (UFL) as a Measurement Tool for Water Quality Parameters in Turbid Lake Conditions Remote Sensing, 5.(9) pp. 4405-4422