Manatees had a terrible 2020. Rainfall and floodgates are partly to blame

In a year when a third of manatee fatalities in Florida were not investigated because COVID-19 restrictions limited necropsies and boat strikes once again topped deaths caused by humans, one indicator stood out: manatees killed by floodgates and locks.

source https://phys.org/news/2021-01-manatees-terrible-rainfall-floodgates-partly.html