An elusive creature with a saw-like snout and teeth where they seemingly shouldn’t be, thrashed in the shallows of the Intracoastal Waterway recently, its vulnerable white underside belly up, it’s slash of a mouth opening and closing as if gulping for air.
The federally endangered smalltooth sawfish, which was approximately 14-feet long, had the tip of its long flat snout tangled in a fishing net next to a dock in Lantana. Its unusual teeth, which line the outside edge of its rostrum like a hedge trimmer, only deepened the trap as they tangled in the net.
When Florida Fish and Wildlife Conservation officers arrived on Feb. 27, they were able to free the tropical fish that looks like a shark but is really a ray, within minutes.
And it was a critical rescue as sawfish populations struggle with habitat loss and, more recently, a mysterious spinning disorder that has resulted in more than 200 reports to FWC since December 2023.
“Every specimen of this endangered species is vital to its genetic diversity,” said FWC Major Mike Davis, in a statement. “I am grateful our officers were able to return this one to its habitat safely.”
More: Fisherman hooks 11-foot sawfish off Juno Beach Pier
The freed sawfish, which is believed to have been rescued from a residential dock in Lantana’s Hypoluxo Island west of Manalapan, did not exhibit spinning behavior, according to FWC.
But FWC fish biologist Gregg Poulakis said it’s unusual for smalltooth sawfish to be found in Palm Beach County waters. Most reports of sawfish come from areas around Charlotte Harbor on the west coast of the state through the Keys.
“Historically they were found along the east coast of Florida, the Indian River Lagoon used to have a healthy population maybe 100 years ago, but they were unintentionally overfished,” Poulakis said. “The last thing a gill net fisherman wanted back in the day was a sawtooth in the net, and they get tangled really easily.”
An update on the sawfish spinning behavior was issued Wednesday, March 5 by the FWC. After a lull in reports, 22 have been made since December as researchers struggle to discover the cause. FWC has recorded 62 sawfish deaths since December 2023.
In the March 5 update, FWC said water tests haven’t identified a cause of the spinning with no harmful levels of chemicals or heavy metals in sediment. There have also been no signs of parasites, bacteria, or viruses that could explain the behavior.
Algal toxins are a possibility, but more testing must be done, FWC said in the update. Poulakis said the uptick in reports coincided with colder temperatures, which was similar to what happened last year. He said the algae that may be causing the behavior does better in cooler water.
“Last year as the weather warmed and the water warmed, the reports dwindled and then we didn’t get any until late December,” Poulakis said.
Florida lawmakers budgeted $2 million to support the investigation, with $1.75 million earmarked for research by the Bonefish & Tarpon Trust for work in Biscayne Bay, Florida Bay and the Keys.
FWC wants to know about every sawfish sighting, regardless of whether they are exhibiting strange behaviors. People who see a sawfish should call the sawfish hotline at 1-844-472-9347, or 1-844-4SAWFISH. You can also email reports to Sawfish@myfwc.com.
Sawfish facts
∎ Their “teeth” line the outside edge of their snout and they swing it from side to side to impale and stun its prey. But they aren’t actually teeth, they are denticles, which are very specialized scales.
∎ They may look like sharks, but they are rays.
∎ They live in coastal tropical and subtropical waters, including estuaries and river systems.
∎ There are five species of sawfish worldwide.
∎ They once lived from the Carolinas to Texas, but the smalltooth sawfish is now largely limited to the waters off the Florida coasts.
∎ They are protected by the Endangered Species Act in the U.S.. It is illegal to catch, harass, collect, buy or sell any part of any species of sawfish.
SOURCE: Florida Museum of Natural History
Kimberly Miller is a journalist for The Palm Beach Post, part of the USA Today Network of Florida. She covers real estate, weather, and the environment. Subscribe to The Dirt for a weekly real estate roundup. If you have news tips, please send them to kmiller@pbpost.com. Help support our local journalism: Subscribe today.
This article originally appeared on Palm Beach Post: Endangered sawfish saved in fishing net in Palm Beach County, Florida