Seasonality of Water Chemistry, Carbonate Production, and Biometric Features of Two Species of Chara in a Shallow Clear Water Lake

Table 1

Variability of physicochemical parameters in pelagial water in Lake Jasne. Summarized data for the whole study period (April–October). TN: total nitrogen, TP: total phosphorus, and bld: below the limit of detection.

		Minimum	Maximum	Mean ± SD
Temperature	(°C)	8.70	25.30	17.04 ± 6.43
O2	(mg L^−1)	3.96	10.25	6.43 ± 2.17
SD visibility	(m)	2.60	5.80	3.90 ± 1.03
pH		6.80	8.60	7.87 ± 0.59
Conductivity	(µS cm^−1)	236.00	246.00	241.86 ± 3.72
Alkalinity	(mval L^−1)	1.60	1.90	1.77 ± 0.13
	(mg L^−1)	97.60	115.90	108.06 ± 7.65
TP	(mg L^−1)	0.008	0.045	0.020 ± 0.010
	(mg L^−1)	bld	bld	bld
TN	(mg L^−1)	0.74	3.29	1.63 ± 0.98
	(mg L^−1)	0.00	1.53	0.52 ± 0.62
	(mg L^−1)	bld	bld	bld
	(mg L^−1)	0.047	0.382	0.150 ± 0.120
Norg.	(mg L^−1)	0.59	1.66	0.88 ± 0.41
Ca^2+	(mg L^−1)	53.63	59.03	56.61 ± 2.26
Mg^2+	(mg L^−1)	2.16	3.47	2.65 ± 0.58
Hardness	(°dH)	8.24	9.19	7.71 ± 0.34