Table 1.

Characterization of the Microcystis strains used in the experiment

Name	Origin	Isolation date	Microcystin concentration (in pg per ng C)	Growth rate	Tendency to form colonies
ML76	Leeuwenhof	9/2004	17.9	0.478	Never
ML50	Leeuwenhof	9/2004	2.8	0.388	Always
ML49	Leeuwenhof	9/2004	0	0.409	Never
ML14	Leeuwenhof	9/2004	0	0.453	Sometimes
MT45	Tiens Broek	8/2005	4.00	0.468	Sometimes
MT50	Tiens Broek	8/2005	10.61	0.376	Sometimes
MT38	Tiens Broek	8/2005	0	0.435	Always
MT6	Tiens Broek	8/2005	0	0.500	Sometimes
MW24	Park Westveld	7/2007	5.56	0.427	Sometimes
MW31	Park Westveld	7/2008	13.88	0.517	Sometimes

Data from I. van Gremberghe, personal observation; van Gremberghe et al. 2009a; Van Wichelen et al. 2010.