Webeven rose's harshest critics agree: Weba group of manatees is called an aggregation—and visitors to florida’s blue spring state park north of orlando have just witnessed some of the largest. Webmore than 1,100 of florida's manatees died in 2021 from starvation — as a result of water pollution that killed off the seagrasses they need to survive. Webwith 7,500 florida manatees left in the wild, environmental organizations are calling for the mammal to be reclassified as a threatened species. Webin florida, an ecological disaster has led to the deaths of more than 1,000 manatees. Webtampa bay has lost nearly 50 percent of its mangroves, while farther south, the mangroves of charlotte harbor estuary have declined by nearly 60 percent. But it’s not a lost cause. Webblue spring state park is home to one of the largest winter gathering sites for manatees in florida, and recently, the park reached a new record when the number.