Table 1.

Abiotic parameters of the rock pools in the Murg and the floodplains of the river Rhine

Sampling site	Murg (rock pools)	Rhine floodplains
pH	8.35	7.02
Conductivity [μS]	30	690
Total hardness [dH°]	2.4	19.7
Carbonate hardness [dH°]	2.5	11.6
Ammonium [mg/l]	<0.2	<1
Nitrite [mg/l]	0	25
Nitrate [mg/l]	0	<10
Phosphate [mg/l]	0	<0.5