Table 2.

Impact of reduction in Secchi depth (of 0.34 m) on the probability of participation in fishing and swimming in Lake Mendota.

Activity	Fishing	Swimming
Current Participation	37.4%	41.7%
Current Odds $\left(O_1^A\right)$	0.60	0.72
New Odds $\left(O_2^A\right)$	0.58	0.72
New Participation	36.6%	41.7%
Loss in Participation	0.8%	0%