210
THE BIOLOGY O F EUPHAUSIIDS
TABLE XIII. LIPIDS (yo WET WEIGHT) IN SPECIES OF Nematoscelis, Nematobrachion, AND Stylocheiron
Species
Nematoscelis atlantica
Nematoscelis dificilis
Nematoscelis microps
Nematoscelis tenella
Nematoscelis megalops
Nematobrachion boopis
Nematobrachion
sexspinosum
Stylocheiron abbreviatum
Stylocheiron elongatum
S t y locheiron longicorne
Stylocheiron maximum
Sea area
Average weight Yo
lipid
Date
(w)
N. Atlantic
N. Pacific
N. Pacific
N. Atlantic
N. Atlantic
N. Atlantic
N. Atlantic
N. Atlantic
N. Atlantic
N. Atlantic
N. Atlantic
N. Atlantic
N. Atlantic
N. Atlantic
N. Atlantic
N. Atlantic
N. Atlantic
N. Atlantic
N. Atlantic
N. Atlantic
N. Atlantic
N. Atlantic
N. Atlantic
N. Atlantic
N. Atlantic
N. Atlantic
N. Atlantic
N. Atlantic
N. Atlantic
N. Pacific
N. Atlantic
N. Atlantic
N. Atlantic
N. Atlantic
N. Atlantic
November 1955
May 1953
April 1956
November 1955
June 1955
July 1955
September 1955
September 1955
September 1955
September 1955
September 1955
May 1956
November 1957
June 1955
July 1955
September 1955
November 1955
Sept.-Nov. 1955
November 1955
November 1955
November 1955
September 1952
July 1955
September 1955
September 1955
September 1955
September 1955
November 1955
November 1955
May 1953
July 1955
September 1955
November 1955
November 1955
May 1956
27
37
40
7.7
7.8
30
27
13
14
18
19
45
32
35
29
33
24
87
13
14
32
9.5
1.8
1.8
2.6
8.8
1.9
14
12
53
48
15
11
13
56
0.8
3.4
0.5
1-7
6.7
0.5
4.7
1.4
0.4
0.6
1.0
1.0
0.4
1.5
0.8
3.2
3.9
5.5
2.6
3.7
5.8
0.9
3.3
1.0
1.4
3.4
2.3
1.5
5.6
9.0
1.6
4.6
1.1
9.5
5.3
consider this unlikely in the majority of the analyses because the
samples usually consisted of fifty to several hundred individuals. On
the other hand, a sample always contains a variable number of animals
which have a much lower or higher lipid content than the majority and
this certainly gives rise to variation between samples. The values in