262
J. A. KITCHINO AND F. J. EBLING
Tide in the lough
EAST GbLEEN
Corcinus mznas
~n
I
' 3
Portunus puber
0 1
50 '
Prawns & shrimps
*
,
E 3
-
P
._
7 )
.s 0
-
GLANNAFEEN QUAY
Corcinus mznos
Z
0 i
Portunus puber
1
I
Prawns & shrimps
12
18
18
24
6
I2
18
24
6
Time 1BS.T)
FIG. 59. Numbers of crabs and prawns on beds of small mussels laid in extreme shelter
at East Goleen, and in a more open part of the Lough at Glannafeen Quay. Black signifies sublittoral, white signifies littoral. Carcinus maenas and Portunus puber were opening
and eating the mussels; the prawns (mainly Leander serratus) were merely scavenging.