Melissa Hobson is a freelance writer who specializes in marine science, conservation and sustainability, and particularly loves writing about the bizarre behaviors of marine creatures. Melissa has worked for several marine conservation organizations where she soaked up their knowledge and passion for protecting the ocean.
Experts in Florida are still struggling to understand why critically endangered smalltooth sawfish are swimming in circles and beaching themselves, despite testing hundreds of water samples and analyzing fish tissue.
The mysterious behavior has caused the deaths of at least 50 smalltooth sawfish and is also affecting other species. "We started with examining environmental conditions, water quality, water samples for Harmful Algal Blooms , and toxin analysis," Cody said. There is no indication that the die-off is down to red tide algal blooms, according to tests so far — though investigations are still ongoing.
Oxygen levels, salinity, pH, and temperature are also not believed to be the cause, and there have been no signs to suggest a bacterial infection or transmissible pathogen, according to the statement.
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