Yigal Alon Kinneret Limnological Laboratory Ora Hadas orah@ocean.org.il Tel: 04 – 6721444 ext. 204 Senior Scientist Ph.D. 1983, Hebrew University of Jerusalem, Israel At IOLR since 1986

Research interests:
Limnological and Ecophysiological aspects of cyanobacteria. Biogeochemical processes: Nitrogen cycle, Chemosynthesis. Enzymatic studies: alkaline phosphatase, nitrate reductase, glutamine synthetase. Monitoring of fecal bacterial indicators.

Selected publications:
Hadas, O., Corradini, M.G. and Peleg, M. (2004). Statistical analysis of the fluctuating counts of fecal bacteria in the water of Lake Kinneret. Water Res. 38:79-88.

Gillor, O., Harush, A., Hadas, O., Post, A. and Belkin, S. (2003). A Synechococcus PglnA: luxAB fusion for estimation of nitrogen bioavailability to freshwater cyanobacteria. Appl. Environ. Microbiol. 69:1465-1474.

Sukenik, A., Eshkol, R., Livne, A., Hadas, O., Kaplan, A., Tchernov, D., Vardi, A. and Rom, M. (2002). Inhibition of growth and photosynthesis of the dinoflagellate Peridinium gatunense by Microcystis sp. (cyanobacteria): a novel allelopathic mechanism. Limnol. Oceanogr. 47:1656-1663.

Hadas, O., Pinkas, R., Malinsky-Rushansky, N., Shalev-Alon, G., Delphine, E., Berner, T., Sukenik A. and Kaplan, A. (2002). Physiological variables determined under laboratory conditions may explain the bloom of Aphanizomenon ovalisporum in Lake Kinneret. Euro. J. Phycol. 37:259-267.

Gillor, O., Hadas, O., Post, A. and Belkin, S. (2002). Phosphorus bioavailability monitoring by a bioluminescent cyanobacterial sensor strain. J. Phycol. 38:107-115.

Hadas, O., Pinkas, R. and Erez, J. (2001). High chemoautotrophic primary production in Lake Kinneret, Israel – a neglected link in the C cycle of the lake. Limnol. Oceanogr. 46:1968-1976.

Hadas, O., Pinkas, R., Delphine, E., Vardi, A., Kaplan, A. and Sukenik, A. (1999). Limnological and ecophysiological aspects of Aphanizomenon ovalisporum bloom in Lake Kinneret, Israel. J. Plankton Res. 21:1439-1453.

Vardi, A., Berman-Frank, I., Rozenberg, T., Hadas, O., Kaplan, A. and Levine, A. (1999). Programmed cell death of the dinoflagellate Peridinium gatunense is mediated by CO₂ limitation and oxidative stress. Curr. Biol. 9:1061-1064.

Hadas, O., Malinsky-Rushansky, N., Pinkas, R. and Cappenberg, T.E. (1998). Grazing on autotrophic and heterotrophic picoplankton by ciliates isolated from Lake Kinneret, Israel. J. Plankton Res. 20:1435-1448.

Hadas, O. and Berman, T. (1998). Seasonal abundance and vertical distribution of Protozoa (flagellates, ciliates), and Bacteria in Lake Kinneret, Israel. Aquat. Microbial. Ecol. 141:161-170.