Appendix C. An ANOVA table comparing densities of predators at mussel and non-mussel sites.
| TABLE C1. Results of ANOVA testing the hypothesis that predator density did not differ between mussel and non-mussel sites in the spring survey. The factor site was nested within the factor of mussel presence since sites were treated as replicates of either mussel or non-mussel sites. |
Species
Source
df
F
P
Asterias
Mussels present
1
216.63
< 0.0001
Site (mussels present)
14
9.63
< 0.0001
Busycon
Mussels present
1
0.32
0.5734
Site (mussels present)
14
2.24
0.0154
Cancer
Mussels present
1
12.24
0.0009
Site (mussels present)
14
34.20
< 0.0001
Carcinus
Mussels present
1
0.6317
0.4297
Site (mussels present)
14
5.4351
< 0.0001
Drills
Mussels present
1
13.5650
0.0005
Site (mussels present)
14
13.0816
< 0.0001
Dyspanopeus
Mussels present
1
0.3342
0.5652
Site (mussels present)
14
46.0380
< 0.0001
Libinia
Mussels present
1
6.1742
0.0156
Site (mussels present)
14
11.8755
< 0.0001