121
TABLE 5: Growth rates (doublings d- l ) of numerically abundant diatoms
and the total population incubated in dialysis tubing during cruise
B-8123. When two values are given they are for replicate tubes.
Station
4
7
12
13
17
Location
shelf break
slope
shelf
nearshore
nearshore
-1
K - Doublings Day
Species
H. hauckii
R. alata
R. alata
f. gracillissima
N. pungens
Total population
F. hyalina
Total population
N. longissma
N. pungens
R. alata
R. robusta
R. setigera
S. unipunctata
Total population
R. alata
Total'population
R. alata
R. alata
f. gracillissima
count
4.37
4.09
4.53
4.37
2.94
4.20
3.84
4.41
2.46
4.26
2.52
1. 39
1. 59
0.11
0.29
0.32
0.41
1. 51
0.57
1. 84
0.79
0.91
0.22
0.23
1. 52
0.91
R. fragilissima
1.38
R. setigera
1.11
R. stolterforthii
1.14
C. lorenzianum
0.22
Total population
1.09
Chl
1. 76
0.92
1. 76
0.92
1. 70
0.62
1. 70
0.62
0.79
0.51
0.79
0.51
o
0.35
0.53
0.35
0.53