# DV: Biomass # IV: Iron application (fixed effect) # Site (fixed effect) # Lake (random effect) Lake Iron Biomass Site 1 Before 10 North 2 Before 12 North 3 Before 13 North 4 Before 12 North 5 Before 15 North 6 Before 20 North 7 Before 17 North 8 Before 11 North 9 Before 19 North 10 Before 17 North 1 After 17 North 2 After 14 North 3 After 19 North 4 After 14 North 5 After 21 North 6 After 24 North 7 After 22 North 8 After 17 North 9 After 25 North 10 After 23 North 1 Before 20 South 2 Before 24 South 3 Before 25 South 4 Before 30 South 5 Before 21 South 6 Before 24 South 7 Before 21 South 8 Before 21 South 9 Before 25 South 10 Before 30 South 1 After 23 South 2 After 31 South 3 After 28 South 4 After 32 South 5 After 23 South 6 After 25 South 7 After 28 South 8 After 26 South 9 After 26 South 10 After 37 South