z
a
- A
3
n
1 0 - 4 1 0 -
z
2
4
k
5
2
5
0 1 - 5
I
2 - e :
s O 6 - C
D.
Y
- 1 .
x
-
-4
FIQ. 6. Nitrogen and phosphorus excretion as pgglmg dry body weight/day by Cdanua in the Clyde Sea-area between April 1968
and June 1969.
Stippled areas show chlorophyll a in 6 litres of BB8
water (E,B,B:) in a 10 ml acetone extract. (From Butler et d., 1970. Reproduced by kind permission of the Council of the Marine
Biological Association of the United Kingdom.)
0 - 0. females; 0 - 0 , males; v - v , stage V.
5 -
a
- A
3
n
1 0 - 4 1 0 -
z
2
4
k
5
2
5
0 1 - 5
I
2 - e :
s O 6 - C
D.
Y
- 1 .
x
-
-4
FIQ. 6. Nitrogen and phosphorus excretion as pgglmg dry body weight/day by Cdanua in the Clyde Sea-area between April 1968
and June 1969.
Stippled areas show chlorophyll a in 6 litres of BB8
water (E,B,B:) in a 10 ml acetone extract. (From Butler et d., 1970. Reproduced by kind permission of the Council of the Marine
Biological Association of the United Kingdom.)
0 - 0. females; 0 - 0 , males; v - v , stage V.
5 -