Table I. Strains used in this study.

Strain	Isolate location	Isolate date	Toxicitya	Reference
PCC 7806	Braakman Reservoir, The Netherlands	1972	+	[87]
UWOCC MRC	Malpas Dam, Armidale, Australia	1973	+	[88]
UWOCC MRD	Malpas Dam, Armidale, Australia	1973	+	[88]
UWOCC CBS	Lake Mendota, WI, USA	Pre 1983	−
PCC 7005	Florida, USA	1948	−	[87]
HUB5.3	Lake Pehlitzsee, Germany	1977	−	[89]

^a As determined by this study.