Ultraplankton of the Gulf of Naples
Fig. 7. Presence of two popu0
lations of Prochlorophytes
(closed symbols) at station
0 0 0 0 0 0 0 0 0 0
0 0 0 0 0
MareChiara in the Gulf of
-10 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Naples. Sampling started on
ot o
June 16 th , 1998, and proceeded
-20
with a weekly period. Last
0 0 0 0 0 0 0 0 0 0
0
0
sampling was on September
29 th • Open squares indicate the
..presence of only one populaE -30 0 0 0 0 0 0 0 0 0 • •
0
• • •
tion of prochlorophytes (the
-dimmer). The arrow indicates
..c
0 0 0 0
•
0 0 0 0
• •
0 .1 • •
the sampling on September
-+-'
Q.
15 th , where the two populaW
tions of prochlorophytes were
"0
0
•
•
1
• •
0
•
0 I . • •
0 .1 • •
present in a discrete layer
between 30 and 50 m depth
• .1 •
0
• • • • • •
0
• •
-70 • • • • • • • • • • • •
0
• •
-80 0 1 2 3 4 5 6 7 8 9 1011 121314 151617181920
samplings
a
temperature ( ~)
salinity (psu)
b
1200
16.00
20.00
24.00
28.00
-20
-20
",-....
/
e
"-'"
(
..c: 40
-40
~
0..
I
OJ
"
0
\
\
"
-80
Fig. Sa,b. Comparison of temperature (a) and salinity (b) profiles at MareChiara station in the Gulf of Naples on September 7 th
(solid line) and September 15 th (broken line)
177