I need help please

4. In an experiment to understand the impact of fish grazing on invertebrate populations in streams, researchers established 9 observation channels in 3 streams (3 channels per stream). Each channel of the 3 in a stream received one of the 3 treatments: 1) no fish was added, 2) Galaxis fish were added, 3) Trout were added. 12 days after the fish were added, the number of mayfly nymphs in each channel was counted (see table below). Treatment Creek A B No fish 16 10 Galaxis 19 6 4 Trout 12 4 O For those data, SS(treatment)=24.2222, SS(creek)=174.8888, SS(error)=27.1111. 1) Is this a one-way or two-way ANOVA? 2) Construct the ANOVA table with F values, and significance test