~
i O
o.
(/)
.,
2
Q;
0
, -, . :ésPèc~~-j;tiyi~planci~1qùes d~inina~tes
..
1 MB*fffiMfo .. 1®-- @i.J..11106
5
10
·10
3 ~
10
,/f
10
o'
1987
1988
N 0 R D
Thalassionema nitzschioides
Melosira sulcata + Paralia sulcata
Chaetoceros sp.
Melosira sulcata + Paralia sulcata
Melosira sulcata + Para/ia sulcata
-
Diatomées
1989
1990
10
'
1991
5 ,...
10
1987
Aster/one/la glacialis
Chaetoceros sp.
Tha/assionema nitzschioides
Dinoflagellés
®Mfütf!i {.j .u .um i@tun
1988
1989
1
1
1990
•
1991
1
1
1
5 f..
10
2
10
10
0 .._______._.__. •• ~...-.-:-. ............................... .
1987
1988
1989
1990
1991
P A S
D E
C A L A I S
Skeletonema costatum
Rhizosolenla delicatula
Aster/one/la glaclalis
Asterionella glacialis
autres
hytoplanè:ton ·:autres
1987
1988
1989
1990
1991
p
C A R D I E