TABLE 1.

In situ physiochemical conditions and nutrient concentrations during the Lake Agawam (LA) time series and Lake Erie (LE) transects (sites M1–M5, river to Bass Islands).

Site	Date	Toxin (μg L–1)	Surface Temperature (°C)	Nitrate (μM)	Ammonia (μM)	Phosphorus (μM)	TN (mg N L–1)	TP (μg P L–1)
LA	17-05-2017	317	19.6	10.57 ± 0.3	0.36 ± 0.09	BDL	47.11 ± 1	0.55 ± 0.05
LA	23-05-2017	75.02	18.8	0.12 ± 0.02	0.61 ± 0.2	BDL	221.56 ± 30.9	6.41 ± 0.29
LA	30-05-2017	131.43	18.6	0.87 ± 0.23	NA	BDL	238.91 ± 10	7.37 ± 0.33
LA	06-06-2017	28.3	17.5	6.48 ± 0.26	1.37 ± 0.42	BDL	227.34 ± 8.18	6.59 ± 0.29
LA	13-06-2017	16.15	25	BDL	0.87 ± 0.16	BDL	90.03 ± 0.64	2.72 ± 0.04
LA	19-06-2017	15.5	23.1	0.53 ± 0.08	1.88 ± 0.39	BDL	94.02 ± 1.54	2.72 ± 0.08
LA	26-06-2017	3.57	27.7	0.4 ± 0.01	NA	BDL	63.18 ± 1	2.32 ± 0.17
LA	03-07-2017	6.64	NA	0.5 ± 0.01	1 ± 0.23	BDL	74.93 ± 1.27	2.43 ± 0.02
LA	17-07-2017	11.15	27.7	0.31 ± 0.01	1.99 ± 0.29	BDL	65.94 ± 0	2.94 ± 0.25
LA	25-07-2017	16.59	24.4	0.68 ± 0.2	0.68 ± 0.09	BDL	61.18 ± 4	2.53 ± 0.14
LA	31-07-2017	83.92	26.6	1.73 ± 0.26	3.39 ± 1.13	BDL	93.44 ± 0	3.99 ± 0.24
LA	07-08-2017	37.51	23.9	4.64 ± 1.12	2.89 ± 0.07	BDL	NA	6.38 ± 0.16
LA	15-08-2017	46.21	26	0.9 ± 0.31	1.57 ± 0.53	BDL	211.92 ± 4.54	9.46 ± 0
LA	22-08-2017	28.48	26.3	4.14 ± 0.61	3.3 ± 0.46	BDL	132.89 ± 5.45	5.63 ± 0.16
LA	28-08-2017	28.87	26.2	0.45 ± 0.12	1.35 ± 0.34	1.36 ± 0	NA	3.72 ± 0.12
LA	06-09-2017	82.27	22.4	4.62 ± 0.33	1.67 ± 0.2	0.37 ± 0.07	184.29 ± 19.99	9.09 ± 0.86
LA	11-09-2017	78.8	NA	0.99 ± 0.22	3.07 ± 0.43	BDL	230.56 ± 12.72	8 ± 0.04
LA	26-09-2017	302.86	24.2	0.09 ± 0	3.52 ± 0.23	BDL	336.58 ± 22.72	14.62 ± 1.11
LA	03-10-2017	38	20.9	0.49 ± 0.18	0.73 ± 0.17	BDL	172.73 ± 0	4.68 ± 0.05
LA	11-10-2017	NA	20.2	4.37 ± 0.32	39.61 ± 0.27	BDL	206.78 ± 0.91	6.02 ± 0.12
LA	17-10-2017	42.37	15.9	9.69 ± 0.27	6.3 ± 0.47	0.27 ± 0.06	183.01 ± 1.82	4.94 ± 0.09
LA	24-10-2017	85.07	18.2	0.44 ± 0.02	2.02 ± 0.12	BDL	280.67 ± 0	8.26 ± 0.16
LA	01-11-2017	62.87	13.7	18.37 ± 1.42	15.19 ± 2.33	BDL	246.25 ± 0	4.94 ± 0.01
LA	06-11-2017	171.35	15.2	23.56 ± 0.43	5.81 ± 0.45	BDL	599.37 ± 25.44	21.34 ± 0.9
LA	13-11-2017	374.5	7.8	33.02 ± 0.18	24.38 ± 0.54	1.14 ± 0.07	217.98 ± 7.27	3.97 ± 0.07
LA	22-11-2017	15.74	10.6	NA	NA	NA	NA	NA
LA	27-11-2017	25	7.8	39.72 ± 3.99	28.2 ± 3.89	0.87 ± 0	176.86 ± 0	3.31 ± 0
LA	04-12-2017	10.49	8.2	58.07 ± 0.3	74.72 ± 1.09	BDL	193.56 ± 3.63	1.75 ± 0.03
LA	11-12-2017	6.81	6.2	49.15 ± 0.5	49.42 ± 0.94	BDL	165.29 ± 0	2.25 ± 0.1
LA	19-12-2017	9.99	3.1	51.63 ± 0.53	48.89 ± 0.77	BDL	221.19 ± 10	3.98 ± 0.05
LA	26-12-2017	12.27	3.2	49.74 ± 0.37	60.61 ± 2.61	BDL	179.43 ± 3.63	2.52 ± 0.08
LA	05-01-2018	NA	1.4	NA	NA	NA	NA	NA
LE M1	18-09-2017	5.49	20.8	0.46 ± 0.14	3.28 ± 0.47	BDL	34.98 ± 3.09	1.16 ± 0.11
LE M2	18-09-2017	0.46	20.6	3.7 ± 0.24	3.44 ± 1.11	BDL	327.85 ± 15.45	8.41 ± 0.45
LE M3	18-09-2017	3.79	20.5	0.15 ± 0	0.99 ± 0.03	BDL	212.84 ± 0	5.88 ± 0
LE M4	18-09-2017	2.69	20.5	1.7 ± 0.24	1.42 ± 0.13	BDL	60.43 ± 7.09	1.79 ± 0.12
LE M5	18-09-2017	2.83	20.7	5.72 ± 0.23	0.34 ± 0.04	BDL	53.43 ± 4.09	1.2 ± 0.15
LE M1	21-09-2017	2.72	21.2	0.57 ± 0.07	0.81 ± 0.2	BDL	NA	NA
LE M2	21-09-2017	0.27	20.9	15.21 ± 0.38	0.6 ± 0.13	BDL	NA	NA
LE M3	21-09-2017	0.55	20.8	5.78 ± 0.23	0.12 ± 0	BDL	NA	NA
LE M4	21-09-2017	4.52	20.8	0.75 ± 0.08	BDL	BDL	NA	NA
LE M5	21-09-2017	2.43	21.1	3.52 ± 0.27	0.15 ± 0.02	BDL	NA	NA

Values are displayed as mean ± SD.