Bob La Londe wrote:

At what temperature do the shad start to die off? I am probably asking
water temperature more than anything else.
.snipped

--
Bob La Londe
Yuma, Az
http://www.YumaBassMan.com
Promote Your Fishing, Boating, or Guide Site for Free
Simply add it to our index page.
No reciprocal link required. (Requested, but not required)

I am not sure about the temp at which die off occurs, but when the temp
in Old Hickory Lake (Cumberland River) reaches about 45 F., the gizzard
shad begin to congregate in the outflow of our electrical generating
steam turbine plants. There are millions there with all sorts of fish
feeding there as well as numerous birds. This outflow flows into the
lake over a very large flat. Fishing is excellent in this area as long
as generation is occurring. It remains good until the spring when the
main lake begins to warm and the shad spread back over the lake proper.
Not sure if you have a generation plant like this in your area, but if
you do, a lot of shad will survive an area, such as this, in the coldest
of winters. I have also fished the cooling outflow of several nuclear
generating plants. Have not seen any glowing fish yet.