252 Chapter 7 Chaetognaths
PAT AGONIA
+
X
+
53'
·s
day
night
+
X
o
o
• 0.1-1
~
o •
1-10
o •
10-100
o •
100-1000
o e
TIERRA DEL FUEGO
54' 45' s 1
>1000
- - ' -
75' 30' W
73' 30'W
71' 30' W
69' 30' W
67' 30' W
PACIFIC AREA
F o
.01
.1
10
T 5
7
11
13
15
" h~
-100
(
Depth range of occurrence: 50 - 600 m
Population core: 100 - 150 m
~
Temperature (T): 8.20 - 9.80 o c
5 -400
[
Oxygen: 348.4 - 437.2 !Jmol dm· 3
J:
'
Chl fluorescence (F): 0.04 - 0.39
11
Il.
w
o
·100
-800
T F
-900 o
10
10 2
10 3
10'
10 5
Ind. 100 m · 3
Fig. 7.2.3. Sagitta gazellae. Distribution in the Straits of Magellan in February-March 1991