HOMOSASSA SPRINGS, Fla. — State and federal wildlife officials are investigating reports of a manatee found with "Trump" drawn on its back in a Florida river.
The aquatic mammal was spotted over the weekend in the Homosassa River in Citrus County, the U.S. Fish and Wildlife Service and the Florida Fish and Wildlife Conservation Commission confirmed. The area is about 80 miles north of Tampa.
"West Indian manatees are essential members of the ecosystems in which they inhabit and are protected under the Endangered Species Act and the Marine Mammal Protection Act," USFWS Director Aurelia Skipwith said in a statement.
The manatee does not appear to be seriously injured, officials said. It appears that the word was written in algae that had grown on the animal's back, not scratched into its skin.
Wildlife officials are looking for any information regarding the animal's harassment. Tips can be reported at 888-404-3922. The Center for Biological Diversity, a nonprofit group that protects endangered animals, is offering a $5,000 reward for information leading to a conviction in the case.
Harassing a manatee, a federal crime, is punishable by a $50,000 fine and up to one year in prison.
14 endangered or threatened species that play crucial roles
These 14 endangered or threatened animals and plants play a crucial role in their ecosystems, and even in human life.
Monarch butterflies

The U.S. Fish and Wildlife Service has been petitioned to determine the endangered status of monarch butterflies, which pollinate wildflowers that support ecosystems.
Cork oak

The tree from which wine corks come is home to endangered species like the Iberian lynx and Iberian Imperial Eagle, according to the World Wildlife Fund for Nature. The industry that makes wine corks is environmentally sustainable and provides a home for these creatures, but the rise in artificial wine corks threatens the trees and the shelter they create. While the trees themselves aren’t endangered, threats to the cork industry threaten the endangered species that call these trees home.
Bats

Many bat species consume insects, including agricultural pests. Many also pollinate plants and disperse seeds. The International Union for Conservation of Nature lists 24 bat species as critically endangered, three as endangered and 104 as vulnerable.
Sharks

As a top predator, sharks maintain population levels in their environment. Shark populations are threatened by overfishing and bycatch (being caught accidentally by fishers fishing for other species). Scalloped and great hammerhead sharks are listed as endangered by the International Union for Conservation of Nature.
Bees

Between $235 billion and $577 billion in annual food production relies on pollinators like bees. Colony collapse disorder and pesticides threaten bee populations, according to the United Nations Food and Agriculture Organization. Although many species of bees are not officially endangered, the U.S. Fish and Wildlife Service added seven species of bees native to Hawaii to the endangered species list in 2016.
Whales

Many large whales serve their ecosystem by managing populations and distributing nutrients by feeding deep in the ocean and disposing of waste closer to the surface, according to the University of Vermont. Six of the 13 great whale species are listed as endangered.
Cacti

Cacti are an important source of food and water to desert animals. Illegal collection of seeds and plants threatens cacti, and so does habitat loss. The IUCN lists 25 species of cacti as endangered and 27 as critically endangered.
African teak

The African teak is a tree that grows up to about 50 yards tall and is used for boat building, joinery, flooring and decoration, according to WWF. It is listed as endangered by the International Union for Conservation of Nature.
Gorillas

Gorillas are important to biodiversity, spreading seeds of the fruit they eat as they roam through large areas. All subspecies of gorilla are considered either endangered or critically endangered by the IUCN.
Coral

There are 22 coral species listed as threatened and three listed as endangered under the Endangered Species Act, according to the National Oceanic and Atmospheric Administration. Coral reefs not only provide habitats for an entire ecosystem, but they also protect coastlines from erosion and storm damage and provide nutrients to marine life.
Sea otters

Sea otters are listed as endangered by the International Union for Conservation of Nature. They are considered vital to their ecosystem, partially because they eat sea urchins, which would otherwise destroy kelp forests, according to the World Wildlife Fund.
Tuna

Tuna is a highly commercially valuable fish. Some species, particularly the endangered bluefin tuna, have been hit hard by overfishing.
Polar bears

At the top of the food pyramid in the arctic, polar bears play an important role in managing marine populations. Their International Union for Conservation of Nature status is vulnerable, one step above endangered.
Orangutans

Similar to gorillas, orangutans improve biodiversity by spreading seeds of fruit they eat. The Tapanuli orangutan is the most endangered great ape, with no more than 800 alive, according to the WWF.