PROVIDENCE, R.I. (WPRI) — The Rhode Island Department of Environmental Management (DEM) is once again warning anglers to keep an eye out for a type of fish they don’t want to find on their hooks.

The DEM and the Rhode Island Saltwater Anglers Association say there have been increased reports of smooth puffer fish being caught in local waters.

“The ones that have been encountered recently have been in the bay or very close to the bay,” Greg Vespe, former executive director of the R.I. Saltwater Anglers Association, told 12 News. “And we never really used to get them before but with climate change it seems as if the waters warming we’re having more of these exotics show up.”

The smooth puffer fish, one of about 120 known species, poses a serious heath threat because they contain neurotoxins that can affect the central nervous system. Exposure can cause illness, paralysis or death.

According to the FDA, the toxins are deadlier than cyanide and there’s no known antidote. The toxins can’t be frozen or cooked out.

Smooth puffer fish (toxic)

Courtesy: Thomas J. Harris

Northern puffer fish (not toxic)

Courtesy: Eddy Stahowiak

Smooth puffer fish shouldn’t be used for bait or chum, the DEM says. Anyone who catches one is advised to carefully take it off the hook and release it.

“The reason why we say not to even use it as bait or chum is because once you cut into the fish you can release those toxins,” DEM Marine Fisheries Division Supervisor John Lake said.

“It’s the only fish in the area that you wouldn’t want to try to eat or consume or even cut into,” Vespe said. “It’s not common yet, although it’s happening more often, which is why we’re trying to get the word out.”

The smooth puffer fish is typically gray or olive-gray, entirely unscaled, and has a prickly belly.

The more common northern puffer fish usually has black or dark green spots and a yellow to white belly, according to the DEM. While this species is not poisonous, it’s recommended to clean them thoroughly before eating.

Vespe said the smooth puffer fish is attracted to small bits of bait used when fishing for other species.

“Anglers will start to encounter them usually when they’re fishing for black sea bass or porgies, they kind of like some of the same areas,” Vespe said.

Courtesy: RI DEM