Florida Town Officials Say ‘an Unusual Number’ Of Fish ‘suffocated Underwater’ Due To Fertilizer

An “unusual number” of food were recovered dormant successful a municipality connected Florida’s Estero Island this month, and officials believe fertilizer runoff is apt to blame.

Fort Myers Beach resident Stephen Clark told The Independent he first noticed a “bad smell” connected March 12, while boating retired of Buccaneer Lagoon, a mini waterway successful nan town. The adjacent day, he saw dormant food successful a connected canal.

That aforesaid day, municipality officials confirmed they had recovered “an different number of dormant fish” successful Buccaneer Lagoon and launched an investigation. Photos and videos from nan segment showed ample groups of dormant food floating connected nan water’s surface.

Researchers wished nan food were apt killed by debased oxygen levels successful nan water, municipality officials announced Wednesday. Now, they judge fertilizer runoff from adjacent properties is nan “most likely” contributing factor, Fort Myers Beach Public Information Officer Abigail Eberhart told The Independent.

Fertilizer runoff from adjacent properties tin deposit excessive nutrients successful nan water, which tin past origin debased oxygen levels, according to Chadd Chustz, an biology projects head for nan town. That’s because precocious nutrient levels tin thrust algal blooms, and these organisms tin deplete nan oxygen successful nan water.

“So you person a bloom, and they devour nan oxygen,” Chustz told The Independent. “Oxygen is depleted, truthful you person an anoxic information wherever nan food suffocate underwater and die.”

“Nobody really knows what caused it successful particular,” he added. “But it's nan accustomed suspects, pinch a batch of nutrients, causes a bloom, depletes nan oxygen, and arsenic a result, we person a food die-off happening.”

Eberhart explained that municipality officials can’t “pinpoint aliases place precisely which spot it came from, and it could beryllium an amalgamation of properties.”

“But we do think, because of nan precocious nutrient contented and its composition, it's apt fertilizer,” she added.

Chustz explained that a “high number” of "non-toxic dinoflagellates" were recovered successful nan water. He besides emphasized that nan food were not killed because of a “red tide,” which describes a type of harmful algal bloom that tin beryllium toxic to animals and humans alike, according to nan National Oceanic and Atmospheric Administration.

“This was really champion case, because it was not reddish tide, because it was non-toxic to residents,” Eberhart said.

While it’s unclear precisely really galore food were impacted, nan estimates are successful nan dozens, aliases “at astir possibly 100,” Eberhart said. The municipality besides launched a cleanup cognition connected March 13, and crews retrieved astir each nan dormant fish.

“Those food successful there, while they're decomposing, go a root of nutrients again, and it tin go a cycle,” Chustz said.

Now, Chustz is urging spot owners to limit their fertilizer usage and see planting autochthonal vegetation.

“Native [vegetation] will thrive successful nan earthy situation that is harsh down here, truthful it doesn't request that fertilizer to grow,” he said. “So you don't request to usage fertilizer — that, successful turn, reduces nan magnitude of nutrient input that we person from stormwater runoff.”

Fort Myers Beach already has ordinances successful spot restricting fertilizer usage to protect nan surrounding environment.

These restrictions mean residents can’t use fertilizer erstwhile location are watches aliases warnings successful effect for floods, tropical storms, aliases hurricanes, according to municipality officials. Fertilizer usage is restricted during spells of dense rain, aliases during nan rainy season, which spans from June 1 done September 30.

Fort Myers Beach besides enforces “fertilizer-free zones,” which includes areas wrong 15 feet of immoderate h2o aliases wetland, and “any impervious aboveground specified arsenic streets, driveways and sidewalks,” according to municipality officials.

Meanwhile, Clark hopes municipality officials will proceed looking into nan issue.

“I dream investigators are looking for a much circumstantial constituent and origin that could person affected nan oxygenation problems that they judge killed nan fish,” he said.