With its brilliant sun, white sand and turquoise water, Lido Key Beach would make for a perfect postcard of Florida beaches if it weren't for the dozens of dead fish lying on the shore, killed by a toxic algae bloom known ...
Ecology
Mar 19, 2023
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Two large-scale algae outbreaks in Florida are killing fish and threatening public health. Along the southwest coast, one of the longest-lasting red tide outbreaks in the state's history is affecting more than 100 miles of ...
Environment
Aug 10, 2018
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328
Evidence of red tide along South Padre Island and the Lower Laguna Madre continues to mount, but airborne effects are not as bad as previously feared, according to a Texas A&M AgriLife Extension Service marine expert.
Environment
Sep 28, 2015
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A bloom of the toxic algae known as red tide continued to plague parts of Southwest Florida's coastline over the past week with fish kills and respiratory irritation.
Ecology
Dec 14, 2022
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When Gulf of Mexico algae don't get enough nutrients, they focus their remaining energy on becoming more and more poisonous to ensure their survival, according to a new study by scientists from North Carolina State University ...
Environment
Mar 12, 2013
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Vince Lovko, a phytoplantkon ecologist at Mote Marine Lab, crisscrossed the waters off Longboat Key in his lab's Yellowfin fishing boat with a crew of researchers, sampling sea water from a red tide that has slushed around ...
Environment
Sep 3, 2018
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35
A University of Connecticut researcher and his team have discovered that a species of tiny aquatic organism prominent in harmful algal blooms sometimes called "red tide" is even deadlier than first thought, with potential ...
Environment
Jul 23, 2012
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0
A state of emergency has been declared in Florida as the worst red tide in a decade blackens the ocean water, killing dolphins, sea turtles and fish at a relentless pace.
Plants & Animals
Aug 15, 2018
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76
Red tide algae showed up in test samples again this week, according to the Florida Fish and Wildlife Conservation Commission's weekly report.
Environment
Oct 18, 2019
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57
A new study found that when red tides began in early summer and continued into the fall, low oxygen areas—or dead zones— were more likely to also occur. This study by scientists at the University of Miami Rosenstiel School ...
Ecology
Apr 26, 2022
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253
Red tide is a common name for a phenomenon more correctly known as an algal bloom, an event in which estuarine, marine, or fresh water algae accumulate rapidly in the water column. These algae, more specifically phytoplankton, are single-celled protists, plant-like organisms that can form dense, visible patches near the water's surface. Certain species of phytoplankton, such as Dinoflagelate, contain photosynthetic pigments that vary in colour from green to brown to red.
When the algae are present in high concentrations, the water appears to be discoloured or murky, varying in colour from purple to almost pink, normally being red or green. Not all algal blooms are dense enough to cause water discolouration, and not all discoloured waters associated with algal blooms are red. Additionally, red tides are not typically associated with tidal movement of water, hence the preference among scientists to use the term algal bloom.
Some red tides are associated with the production of natural toxins, depletion of dissolved oxygen or other harmful effects, and are generally described as harmful algal blooms. The most conspicuous effects of red tides are the associated wildlife mortalities among marine and coastal species of fish, birds, marine mammals and other organisms. In the case of Florida red tides, these mortalities are caused by exposure to a potent neurotoxin called brevetoxin which is produced naturally by the marine algae Karenia brevis.
This text uses material from Wikipedia, licensed under CC BY-SA
