Tampa, Florida 2021-07-21 02:44:21 –
Tampa, Florida — Red tides continue to kill thousands of fish and other marine life off the coast of Florida’s Gulf. As of this week, Pinellas County contractors have collected over £ 2.5 million in red tide-related debris.
Red tide is a blue tide that occurs every year, Karenia brevis In waters, it produces toxins that kill marine life. It can even make it difficult for humans to breathe.
This year’s flowering began in December 2020 on the southern Florida coast and continued to St. Petersburg by April.
According to experts, this is the worst flowering seen in 50 years. But what does that mean?
“”This flower is rare during the year. Red tides do not usually occur in the middle of summer, “said Leanne Flewelling of the Florida Fish and Wildlife Conservation Commission (FWC). “And in 1971, at a similar, similar time with similar seriousness and spread within the bay.”
Flewelling is also the chair and chair of the state. Harmful Algal Bloom / Red Tide Task Force (HAB), An advisory board created after flowering in 1996 and revived three years ago.
“”There are various ways to measure how bad a flower is, how severe it is, how high it is … not just the size of the fish kill, but how long it lasts, how many counties affect it, “she said. Explained.
The· National Oceanic and Atmospheric Administration Red tides are said to precede human life, but chemicals from humans can exacerbate it.
There is no annual fish kill, but FWC charts show moderate or higher red tide persistence over the last 100 years The trend seems to be growing.
Some flowering in the last few decades lasted for several years:
- It lasted 30 months from 1994 to 1997
- Lasted 21 months from 2002 to 2004
- 2004-2006 lasted 17 months
- Lasted 16 months from 2017 to 2019
So why is this flower so bad in just a few months?
Jay Gunter, Regional Manager for DRC Emergency Services, responsible for the crew purifying water in Pinellas County, said: Last time there was no bay problem. “
“”Six red tides have occurred in the last decade and have flowed into the bay, but usually do not reach the upper beaches and do not reach the current concentrations. “Flewelling has been added.
Flewelling confirmed that the outflow of PineyPoint phosphate plants may have nourished flowering.
“Many of these nutrients were absorbed or transported, but once absorbed, they can be recycled as they remain in the system,” says Flewelling. It contributes to the seriousness of this flower. “
The outflow of nutrients and chemicals from the land to the water also contributes, but it is the high levels of salt in the water that actually supply the flowers in the bay.
Karenia brevis It is a marine organism that cannot tolerate low salt content.
“”Due to the long drought in the spring and winter, the salinity of the bay is much higher than usual, “says Fruwelling. There was also an unusual amount of salt in the bay too. “
Comparing this year’s red tide with 1971, there is one more thing that needs to be done to reduce salt and control flowering. It’s rain.
In 1971, there were many tropical storms and hurricanes that caused rain. This year, tropical cyclones Elsa alone made no difference.
The· The HAB Task Force is also working on a new set of state recommendations. Their goal is to complete it by 2021.
Experts say the red tide cannot be stopped, but they have been working on containment methods.
In 2019, Governor Ron DeSantis Florida Red Tide Mitigation and Technology Development Initiative.
This is a partnership between Mote Marine Laboratory and FWC. The bill will provide $ 3 million annually from the General Revenue Fund for six years. The program is in its third year.
Red ride is nothing new to Tampa Bay, so why is this year’s bloom so bad? Source link Red ride is nothing new to Tampa Bay, so why is this year’s bloom so bad?