Concern Grows Over Mysterious Fish Mortality in Florida Keys
Recent reports have highlighted a worrying phenomenon occurring in the Florida Keys, where fish are exhibiting alarming behavior characterized by spinning and ultimately dying. Scientists are investigating the causes of this troubling trend, with fears that it may be expanding.
Disturbing Behaviors Observed in Sawfish
Among the affected is the critically endangered sawfish. Notably, one sawfish was observed swimming in circles before washing ashore dead in the Tampa Bay area, marking the northernmost instance of this strange behavior.
“This is the singular most devastating event that’s happened to them, this mass mortality that we’re seeing down there,” remarked Tonya Wiley, president of the U.S. Sawfish Recovery Team. With sawfish populations already endangered since 2003, there is significant concern that the recent deaths—55 in the last six months alone—could have dire consequences for their survival.
Bigger Picture: Diverse Fish Species Affected
The troubling signs extend beyond sawfish; over fifty fish species have been reported showing similar spinning behavior in the Florida Keys. While many fish are exhibiting these symptoms, only sawfish have succumbed to the condition.
“It is a mystery,” noted Wiley, highlighting the frustration among researchers as they strive to understand the underlying causes.
Financial Support for Research
In a bid to address this crisis, the state of Florida has recently allocated $2 million to support ongoing research efforts. This funding complements additional resources from federal agencies, private research institutions, and universities like Florida Gulf Coast University (FGCU).
Scientific Investigations Underway
Researchers from FGCU have been actively diving in the middle Keys, collecting samples of water, seagrass, and seaweed. Adam Catasus, a research coordinator at FGCU, indicated, “We want to look at all the environmental structures can be, we want to make sure we are measuring everything that we possibly can while we are here.”
Their preliminary findings revealed high levels of a microscopic algae called Gambierdiscus, which can produce toxins that may not be harmful at low concentrations but can negatively affect fish when found in excess. Catasus explained, “If fish swim through it, or if they eat some of it, or they are exposed to it, they’ll have a response and impact, for example, spinning fish.”
Efforts to Save Affected Fish
As part of the efforts to mitigate the crisis, several spinning sawfish have been captured in hopes of rehabilitation; however, all attempts to save them have ended in failure thus far.
“Can this mystery be solved?” Heather Walker, a reporter covering the story, asked Wiley. “I think it can. It’s going to take time,” she replied, expressing cautious optimism about resolving the situation.
A Call to Action
With scientists racing against time to uncover the reasons behind this troubling trend, swimming in areas with dead fish is advised against. Concerned citizens interested in contributing to sawfish preservation can find ways to donate to conservation efforts.
For more information, contact 7 Investigates at: 305-627-CLUE or 954-921-CLUE, or email at .
