Ice in Green Bay protects lake whitefish larvae from being blown away by winds into areas where they won’t survive as much.
Larval whitefish have a better chance of surviving in Green Bay than their counterparts in Grand Traverse Bay, and also Stokes Bay in the Canadian part of Lake Huron. This is because the ice cover in Green Bay tends to be more consistent. It is also helpful that Green Bay’s zooplankton is dominated by water fleas, which are larval whitefish’s preferred food.
A discussion about this can reached by entering "19" into the box at the top, so it reads 19 / 71. The print page number for it is 11: https://diglib.uwgb.edu/digital/api/collection/p17003coll1/id/60/download
Maps of the bay which indicate how many turned up in different areas can be reached by entering “26” into the box at the top, so it reads 26 / 71. The corresponding print page number is 18.
Posts about fish and fishing:
https://doorcounty.substack.com/t/fish-and-fishing
Posts relating to ice cover:
https://doorcounty.substack.com/t/ice-cover