Which suggests ski-slopes don't work perhaps (I don't know what they look like) or are too far apart. Someone earlier suggested a simple step. I would think just cutting away 2-3 itches of turf away from the edge might be done in a way to allow animals to escape without creating the chicaine effect, hampering movement of barges, someone else mentioned earlier. It would have to be done in spots where it wouldn't cause people to inadvertently fall in. On a different note, if we encounter a live animal eg. deer in the water I presume the fire brigade are the people to call. I wonder if they might also remove dead animals as well. This task would be less unpleasant if performed as soon as an animal was noticed be it dead or alive. Perhaps there ought to be someone responsible for coordinating /improving this problem nationally.
https://www.lincolnshirelive.co.uk/news/local-news/call-action-after-animals-keep-2941118#amp-readmore-target
It seems often locals rescue the animals and also call the firebrigade.