ASPE~TS OB STRESS IN THE TROPICAL MARINE ENVIRONMENT
237
12A
0
0
0
A
0
A
30
0
0
10
20
Temperature at northern limit -OC
FIO. 10. Relation of oorreoted growth rate in the tropics to MU^ mean temperature
at the northern limit of the apeoies. Ciroles-bivalves, triangles-bmnaoles.
temperature of 16°C. Finally, we converted the growth rates to their
equivalent for a standard bivalve, in other words used a standard tissue
weight throughout. The results were as in Table I.
Regression of
Gr:E:Gh growth rate on
temperature
Urohina
1.02
0.66
Gastropods
1-10
0.82
Barmales
1.12
0.79
Bivalves
1-53
0.52
By test, none of the inter-group differences are significant. The rates
have been arrayed in order to show that there is no significant correlation with the group regression of growth rate on temperature.
The similarity of basic growth rate in the four groups bears out what
we have already shown in the bivalves. The comparison also allows us
237
12A
0
0
0
A
0
A
30
0
0
10
20
Temperature at northern limit -OC
FIO. 10. Relation of oorreoted growth rate in the tropics to MU^ mean temperature
at the northern limit of the apeoies. Ciroles-bivalves, triangles-bmnaoles.
temperature of 16°C. Finally, we converted the growth rates to their
equivalent for a standard bivalve, in other words used a standard tissue
weight throughout. The results were as in Table I.
Regression of
Gr:E:Gh growth rate on
temperature
Urohina
1.02
0.66
Gastropods
1-10
0.82
Barmales
1.12
0.79
Bivalves
1-53
0.52
By test, none of the inter-group differences are significant. The rates
have been arrayed in order to show that there is no significant correlation with the group regression of growth rate on temperature.
The similarity of basic growth rate in the four groups bears out what
we have already shown in the bivalves. The comparison also allows us