J. E. SHELBOURNE
100
A
5 8 0 -
4
L
u
n
t, 6 0 -
.- -
C
u
5 4 0 -
u
0
&
.J
$ 2 0 -
L
0
n
-
O0
0
x x
X
0
0
o 1960
x 1961
X
x
x
X
X
X
I
I
I
I
100
200
300
4 0 0
o b
0
Number of metamorphosed fish per tank
FIG. 21. Relation~hip between the incidence of bitten fins among tank-reared plaice,
and the population density.
or caudal fins. Damaged tissue can be regenerated, but ~t severe bite
on a small larva could conceivably be lethal, if repairs remain incomplete before the osmoregulatory resource of the caaualty is overtaxed.
Peripheral damage suet&ined during trawling ie commonly found
among dead adult stock in spawning ponds.
The incidenoe of biting varied from tank to tank in 1960 and 1961
FIO. 22. Relationship between incidence of bitten fins among tankr e d plaice, mnd eize of h h . (After
Shelbourne, 1963b.)
Size group (mm)
100
A
5 8 0 -
4
L
u
n
t, 6 0 -
.- -
C
u
5 4 0 -
u
0
&
.J
$ 2 0 -
L
0
n
-
O0
0
x x
X
0
0
o 1960
x 1961
X
x
x
X
X
X
I
I
I
I
100
200
300
4 0 0
o b
0
Number of metamorphosed fish per tank
FIG. 21. Relation~hip between the incidence of bitten fins among tank-reared plaice,
and the population density.
or caudal fins. Damaged tissue can be regenerated, but ~t severe bite
on a small larva could conceivably be lethal, if repairs remain incomplete before the osmoregulatory resource of the caaualty is overtaxed.
Peripheral damage suet&ined during trawling ie commonly found
among dead adult stock in spawning ponds.
The incidenoe of biting varied from tank to tank in 1960 and 1961
FIO. 22. Relationship between incidence of bitten fins among tankr e d plaice, mnd eize of h h . (After
Shelbourne, 1963b.)
Size group (mm)