TABLE 3.

Summary of toxin assays and PCR results for selected Malpas Dam bloom samples^a

Sample	A. circinalis/M. aeruginosa/ M. flos-aquae ratio	Mouse bioassay resultb	Concn (μg/liter−1) of the indicated toxin by HPLCc		PCR test resultd
			Microcystins	Saxitoxin	Anabaena	Microcystins
MD-34	0:0:100	n-l H	ND	NT	ND	+
MD-78	0:0:0	n-t	ND	ND	ND	ND
MD-80	100:0:0	n-t	ND	ND	+	ND
MD-84	100:0:0	n-t	ND	33	+	ND
MD-87	99:0:1	n-t	ND	5	+	ND
MD-88	1:0:99	n-t	ND	7	NT	ND
MD-90	4:1:95	n-l H	32	40	+	+
MD-93	5:0:95	N	1	135	+	+
MD-96	5:85:10	n-l H	8	6	+	+
MD-103	1:90:9	H	80	4	+	+
MD-108	1:99:0	NT	ND	ND	NT	ND
MD-109	0:100:0	n-l H	ND	ND	ND	ND

^aSee also Table 2.

^bn-t, nontoxic; N, neurotoxic; H, hepatotoxic; n-l H, nonlethal hepatotoxic; NT, not tested.

^cThe limit of detection was 10 μg liter⁻¹ because of interfering peaks. ND, peak(s) or band not detected.

^d+, band detected.