360
70
60
"e 50
:g 40
~ 30
::::I. 20
Alberoni (1990-91)
stormy
-
A. Sfriso and A. Marcomini
_ T I N
~RPlx10)
1~ ~~~~~~~~~~~::~::~~;;~~~~~~~~
Feb-90 Apr-90 Jun-90 Aug-90 Oct-90 00c-90 Fob-91 Apr-91
Jun-91
70
60
E 50
:g 40
"0 30
!3. 20
10
Sacca Sessola (1990-91)
- T I N
~RPlx10)
o +---~----~----+---~----~--~~~~~~~~Feb-90 Apr-90
Jun-90 Aug-90 Oct-90 Oec-90 Fob-91 Apr-91
Jun-91
70
60
E 50
:g 40
o 30
!3. 20
10
San Giuliano (1990-91)
16
------------ ~---------------- -
_ T I N
94
--<>--RP{x10)
o +----+----~----~---+----+---~----~--~~--Feb-90 Apr-90
Jun-90 Aug-90 Oct-90 00c-90 Feb-91
Lido (1985-86)
Apr-91
Jun-91
_ T I N
--<>-RP{x10}
50
40
- -- - - - --- - - - - - - - --- - - - - -- - -- - - -- ------- --- '-----------'
E
:g 30
"0
!3. 10
20
o~~~~~~~~~~~~~~~~--Feb-85 Apr-85
Jun-85 Aug-85 Oct-85 Oec-85 Feb-86 Apr-86
Jun-86
Fig. 15.7. Annual trends of total inorganic nitrogen (TIN: NH: -N + NOx Filled square)
and reactive phosphorus (RP, open diamond) in seawater from the Alberoni, Sacca
Sessola, San Giuliano (1990-1991) and Lido (1985-1986) stations