Table 2. Mean abiotic environmental variables measured in all mesocosms (n = 20 per chloride treatment) from study days 0–47± standard error.

	Chloride Treatment
Environmental Variable	Low	High
Specific Conductance (µS)
Day 0	675.5±4.3	3016±28.7
Day 24	536.5±3.1	2815±16.8
Day 45	513.8±2.9	2705±16.9
Water Temperature (°C)
Day 0	22.2±0.1	21.9±0.1
Day 24	25.5±0.1	25.5±0.0
Day 45	26.3±0.1	25.8±0.1
Nitrates (mg/L)
Day 45	<0.003	<0.004
Dissolved Oxygen (mg/L)
Day 24	5.2±0.2	5.3±0.2