Natural Recovery and Planned Intervention in Coastal Wetlands: Venice Lagoon (Northern Adriatic Sea, Italy) as a Case Study

Table 1

Abiotic and biotic data measured in Venice Lagoon and sub-basins in 2003 survey (mean ± standard deviation (Std Dev), minimum (Min) and maximum (Max) values).

				Whole lagoon (W)	Northern basin (N)	Central basin (C)	Southern basin (S)
Depth	𝐷	cm	Mean ± Std Dev	117 ± 50.2	82.6 ± 25.7	136 ± 48.6	109 ± 49.7
			Min ÷ Max	25.0 ÷ 270	45.0 ÷ 130	40.0 ÷ 270	25.0 ÷ 205
Temperature	𝑇	°C	Mean ± Std Dev	27.2 ± 1.93	28.3 ± 1.09	26.1 ± 1.84	28.0 ± 1.61
			Min ÷ Max	22.7 ÷ 33.2	26.3 ÷ 30.2	22.7 ÷ 33.2	24.4 ÷ 30.9
pH	pH		Mean ± Std Dev	8.20 ± 0.56	9.10 ± 0.14	7.73 ± 0.34	8.39 ± 0.35
			Min ÷ Max	7.41 ÷ 9.35	8.85 ÷ 9.35	7.41 ÷ 9.20	7.83 ÷ 9.25
Salinity	𝑆		Mean ± Std Dev	33.5 ± 3.28	36.6 ± 4.28	31.2 ± 2.92	34.8 ± 1.58
			Min ÷ Max	18.1 ÷ 43.1	24.2 ÷ 43.1	18.1 ÷ 35.6	27.8 ÷ 37.2
Secchi disk	SD	%	Mean ± Std Dev	87.5 ± 21.0	86.7 ± 19.5	75.8 ± 24.7	98.1 ± 9.15
			Min ÷ Max	20.0 ÷ 100	37.5 ÷ 100	20.0 ÷ 100	42.9 ÷ 100
Oxygen saturation	OS	%	Mean ± Std Dev	116 ± 32.0	133 ± 36.6	116 ± 26.0	112 ± 34.5
			Min ÷ Max	15.7 ÷ 239	95.5 ÷ 239	82.5 ÷ 224	15.7 ÷ 208
Sediment fine fraction	SFF	%	Mean ± Std Dev	61.3 ± 28.0	88.7 ± 11.6	63.5 ± 27.6	52.6 ± 26.7
			Min ÷ Max	1.91 ÷ 99.3	60.4 ÷ 99.3	1.91 ÷ 98.6	3.48 ÷ 98.0
Sediment dry density	SDD	g/cm^3	Mean ± Std Dev	0.95 ± 0.29	0.80 ± 0.19	1.04 ± 0.25	0.91 ± 0.32
			Min ÷ Max	0.19 ÷ 1.47	0.49 ÷ 1.24	0.45 ÷ 1.47	0.19 ÷ 1.44
Macroalgal biomass	Mb	kg fwt/m^2	Mean ± Std Dev	0.41 ± 0.89	0.27 ± 0.55	0.18 ± 0.42	0.66 ± 1.17
			Min ÷ Max	0.01 ÷ 7.50	0.01 ÷ 1.50	0.01 ÷ 3.00	0.01 ÷ 7.50
Seagrass biomass	Sb	kg fwt/m^2	Mean ± Std Dev	1.19 ± 2.16	0 ± 0	0.63 ± 1.57	1.99 ± 2.57
			Min ÷ Max	0 ÷ 7.30	0 ÷ 0	0 ÷ 5.40	0 ÷ 7.30
			Observations	165	19	69	77