As colder temperatures sweep across Florida due to an arctic front, the Florida Fish and Wildlife Conservation Commission (FWC) has issued reminders regarding the impact of cold weather on wildlife.
Manatees are among the species affected by the cold. These animals require water warmer than 68 degrees Fahrenheit to survive extended periods of cold. As temperatures fall, manatees seek refuge in springs, power plant discharge areas, and other warm-water sites. The FWC advises that when observing manatees at these locations, people should maintain a respectful distance. Disturbing them can lead to their movement into dangerous cold waters. "Manatees are a protected species, and it is illegal to harass, feed, disturb or harm them," according to the FWC.
The agency also notes that during colder months, seasonal manatee zones mandate boaters and personal watercraft users reduce speed or avoid certain areas to prevent potentially fatal collisions with manatees. These protection zones are marked by signs along waterways; maps can be accessed online at MyFWC.com/MPZ.
Prolonged exposure to lower water temperatures may result in "cold stress" for manatees, causing them to lose body heat and struggle with digestion—conditions that could be fatal. Any sightings of injured or distressed manatees should be reported to the FWC’s Wildlife Alert Hotline at 888-404-FWCC (3922).
Sea turtles also face challenges as water temperatures drop below 50 degrees Fahrenheit. They can become cold-stunned, rendering them weak and unable to swim properly. Cold-stunned sea turtles might appear lifeless but are often still alive. This phenomenon occurs most frequently in St. Joseph Bay but can happen anywhere along Florida's coast.
Biologists from the FWC’s Sea Turtle Program work with authorized Marine Turtle Permit Holders trained in rescuing sea turtles. Reports of injured or dead sea turtles should also be directed to the Wildlife Alert Hotline at 888-404-FWCC (3922). All sea turtle species are protected under Florida law.
The FWC further warns about nonnative green iguanas during cold spells. Near-freezing temperatures cause these reptiles to enter a state of torpor where they lose muscle control and may fall from trees or vegetation. The public is advised against bringing iguanas indoors as they may quickly recover and act defensively.
Green iguanas are classified as a Prohibited Species in Florida; possessing live specimens without a permit is illegal. It is also unlawful to release or relocate them due to potential ecological impacts on native wildlife.
Property owners dealing with iguana-related damage can find deterrent methods on MyFWC.com/Nonnatives or seek help from professional wildlife control operators if necessary.