Table 1.
Effect | Shell thickness
|
Body mass
|
||
---|---|---|---|---|
45 Days | 90 Days | 45 Days | 90 Days | |
Effluent effect | ||||
SS + C vs. SS − C | 5.5%*** | 7.7%*** | −8.3%* | −25.8%*** |
SN + C vs. SN − C | 10.8%*** | 10.0%*** | −9.7%* | −14.3%*** |
NS + C vs. NS − C | 8.1%*** | 9.7%*** | −12.5%*** | −17.3%*** |
NN + C vs. NN − C | 43.4%*** | 46.7%*** | −30.2%*** | −41.7%*** |
Location effect | ||||
SS + C vs. SN + C | 7.7%*** | 8.7%*** | −29.2%*** | −35.5%*** |
SS − C vs. SN − C | 13.1%*** | 11.0%*** | −30.8%*** | −23.1%*** |
NS + C vs. NN + C | 4.9%** | 5.8%*** | −10.4%*** | −15.4%*** |
NS − C vs. NN − C | 39.2%*** | 41.5%*** | −27.8%*** | −39.3%*** |
Shown are the percent change in L. obtusata shell thickness and body mass. See legend of Fig. 2 for explanation of labels. *, P < 0.05; **, P < 0.01; ***, P < 0.001.