248 Chapter 7 Chaetognaths
PATAGONIA
f
day
night
+
X
o
•
o •
o •
o .
o e
0.1-1
1-10
10-100
100-1000
>1000
75' 30' W
73' 30' W
~
g
::c
fa..
LiJ
o
PAC IFIC AREA
F o
.01
. 1
10
11
13
15
·500
·700
T F
·900 L----'---L-IL--~--~-----'
o
10
10 2
10 3
10'
10'
Ind. 100 m· 3
Depth range of occurrence: O - 300 m
Population core: 50 - 100 m
Temperature (T): 8.20 - 9.80 oc
Oxygen: 348.4 - 437.2 IJmol dm· 3
Chl fluorescence (F): 0.04 - 0.39
71 ' 30' W
g
::c
fa..
w
o
+
'Y_" s2· 45' sl
\ ~ ('l
TIERRA DEL FUEGO
69' 30' W
CENTRAL AREA
F o
01
. 1
10
T s
o
· 100
-200
-300
-400
----~--~----~--~
7
9
11
13
15
T
F
-~ L---~--~--~--~--~
o
10
10 2
10 3
10'
10 5
Ind . 100 m · 3
Depth range of occurrence: 100 - 150 m
Population core: 100 - 150 m
Temperature (T): 6. 70 - 9.01 o c
Oxygen: 346.1 - 407.3 1Jmol dm- 3
Chl fluorescence (F): 0.05 - 0.27
<6
~'t53' ' s
54' 45' s
67" 30' W
Fig. 7.1.3. Sagitta decipiens. Distribution in the Straits ofMagellan in February-March 1991