Changes in Fish Communities of Lake Ontario Coastal Wetlands before and after Remedial Action Plans

Table 3

Mean total number of families, species, and species in Centrarchidae, Cyprinidae, Ictaluridae, Percidae, and Moronidae families occurring in 13 sites in historical and recent time periods. Mean richness found in each wetland was compared with a 2-tailed 𝑡-test to determine significant differences between eras (bold indicates significant differences).

Mean richness in wetland	Historic	Recent	𝑃-value
Family	5.5	7.0	.12
Species	7.6	12.5	.01
Centrarchidae species	1.9	3.6	.02
Cyprinidae species	1.3	2.8	.03
Ictaluridae species	0.6	1.6	.01
Percidae species	0.8	1.2	.09
Moronidae species	0.6	0.2	.02