256 Chapter 7 Chaetognaths
day
night
+
X
o
•
o •
o •
o .
iJ e
75' 30'W
~
s
I
1a..
w
o
o
0 .1-1
1-10
10-100
100-1000
>1000
73' 30'W
F o
.01
T 5
o
-100
-200
-300
-'100
-500
-600
-700
-800
10
PAT AGONIA
TIERRA DEL FU EGO
71' 30' W
69' 30' W
PACIFIC AREA
. 1
10
- - - '
,, 13 15
Depth range of occurrence: O - 900 m
Population core: 150 - 200 m
Temperature (T): 8.20 - 9.80 o c
Oxygen: 348.4 - 437.2 IJmol dm- 3
Chl fluorescence (F): 0.04- 0.39
T F
....
10 2
10'
10'
10 5
Ind . 100 m · 3
Fig. 7.3.3. Sagitta maxima. Distribution in the Straits of Magellan in February-March 1991
+
53' 5' s
54' 45' s
67' 30' w