Physico-chemical characteristics of coastal (CW) and transitional waters (TW).
CW
TW
Mean
2SE
Mean
2SE
p
T(°C)
17.43
0.57
15.40
1.25
**
S
38.64
0.02
28.07
5.96
***
DO (mgL-1)
6.09
0.11
7.90
0.60
***
DIN (μmol L-1)
2.00
0.51
25.74
6.81
***
SRP (μmol L-1)
0.14
0.02
1.18
1.51
ns
SRSi (μmol L-1)
1.74
0.21
14.06
5.17
***
chl a (μgL-1)
0.24
0.03
4.29
1.58
***
N/P
20.05
6.23
277.58
75.72
***
depth (m)
29.79
3.18
0.69
0.16
***
Brunt-Vaisala frequency (s-1) (*)
1.24
0.14
-
-
-
T, temperature; S, salinity; DO, dissolved oxygen; DIN, dissolved inorganic nitrogen; SRP, soluble reactive phosphate; SRSi, soluble reactive silicate; chl a, chlorophyll a. SE = standard error representing the environmental variability within coastal and transitional waters; ns = not significant; ** = p<0.01; *** = p<0.001. (§) Index of column water stability as described in Sabetta et al. 2008. Transitional waters are too shallow and too affected by wind conditions to yield useful values for this parameter.
