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Lake O latest toxin test doesn't look good

Old 06-12-2019, 10:03 AM
  #21  
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Old 06-12-2019, 03:08 PM
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Originally Posted by FishnDive View Post
Cattle were pooping upstream long before Mickey and they are still pooping and it's still flowing south to Lake O. Tons of fertilizer going into the lake for the algae to feast on
And that's the Mormons. But you have a valid point. Seems that pollution could be handled by mother nature, though. The added load from Orange county broke the the back, though. And the blocking of the everglades, and..and..
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Old 06-12-2019, 03:16 PM
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Team Rodent has an incredible marketing team.
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Old 06-12-2019, 03:25 PM
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Originally Posted by BigBone View Post

Way to post a uncited document from some random place on the internet to use as facts to prove a point.

You sir, are part of the problem.

Do you even google?
https://www.usgs.gov/centers/norock/...center_objects
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Old 06-12-2019, 04:12 PM
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Originally Posted by BigBone View Post
I think they had to stop using the Global Warming term and it now seems to be Global Climate Change. Lots of evidence against Global Warming, but who can argue against Global Climate Change? Of course it's changing...always has, always will. Duh.
The glaciers feeding Lake Okeechobee are receding at a rapid rate
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Old 06-12-2019, 05:45 PM
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Originally Posted by Eye8atoad View Post
Team Rodent has an incredible marketing team.
Lol..team rodent. Yes, they are THE masters of illusion and make believe!
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Old 06-13-2019, 04:34 AM
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Don’t care much for the mouse, but do a lot of work on the property. The water in the lakes, ponds and canals there crystal clear, no algae at all, and full of fish. The growth around it could certainly contribute to the water issues, but it seems the mouse is keeping his own place clean.
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Old 06-13-2019, 04:37 AM
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In a thousand years you won’t even notice these supposed problems. Relax it’s gonna be alright....
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Old 06-13-2019, 12:07 PM
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Old 06-13-2019, 12:08 PM
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Old 06-13-2019, 12:21 PM
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If people weren't obsessed with a perfect lawn and trying to make their food "look" perfect a lot of this problem would go away.

We, as people, have historically done a really good job at f'ing up our bodies of fresh water. Stooooopid!
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Old 06-13-2019, 01:40 PM
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I had to post this in 3 parts , THT wasn't allowing it in it's entirety

U.S. Geological Survey scientists tinkering around with freshwater blue-green algae from Lake Okeechobee have made a simple, yet potentially significant discovery: the amount of salty water needed to transform the tiny organisms from benign to toxic as they travel toward busy coasts.

With the right planning, the discovery could help water managers prevent the kind of foul sliming that spreads along the St. Lucie and Caloosahatchee rivers with every rainy season.

“Our findings open up the possibility that water managers may eventually be able to help reduce the algal toxins reaching coastal waters by manipulating salinity,” said the study’s lead author and USGS biologist Barry Rosen.
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Old 06-13-2019, 01:40 PM
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Blue-green algae naturally occur in fresh water, including Lake O, and provide the foundation for the food chain that has made the lake a destination for bass anglers and birders. But fed by too many nutrients flowing mostly off farms and ranches to the north, Lake O’s algae can explode into dense blooms that block light, smother life and sometimes release toxins that can make people and wildlife sick.


Last year, Hurricane Irma and high run-off from ag fields to the north helped set the stage for one of the worst blooms in recent history. Gary Goforth, an environmental engineer and former chief engineer for the South Florida Water Management District, has estimated that 2.3 million pounds of phosphorus, one of the nutrients that feeds blooms, flowed into the lake — the highest amount ever recorded.

That helped trigger summer-long blooms that at times covered up to 90 percent of the 740-square-mile lake.

When summer rains pushed lake levels up, the U.S. Army Corps of Engineers then released the algae down the two rivers to protect the aging Herbert Hoover dike.

What followed was another summer of misery, mostly along the Caloosahatchee where milkshake-thick blooms fouled the riverbanks and washed into Pine Island Sound, helping fuel ongoing saltwater algae as the dead freshwater algae became food for the red tide.
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Old 06-13-2019, 01:41 PM
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For USGS scientists, an important unanswered question was at what point lake algae, which can be good for fish, turned toxic as it traveled to coastal waters. So in 2016, after state investigators confirmed that toxins called cyanobacteria in the St. Lucie estuary and the Indian River Lagoon had likely come from the lake, USGS launched a project to examine how two types of cynobacteria interacted with brackish estuary water.

During a bloom last year, USGS researchers scooped up algae from Eagle Bay on the lake’s north side and over four days exposed it to different concentrations of sodium chloride “simulating what it would be like if the organism were moving down through saltier water,” Rosen said.

As salt increased, they found membranes lining the cell walls of the algae began to break down, releasing toxins. At levels about half as salty as ocean water, the most common of the two algae began releasing toxins. At a quarter the amount, toxins began to leak in the less prevalent algae. Scientists noted too that the amount also spiked at lower levels of salt.

“It increased in the short range before it dropped off, so it’s possible the cells are slightly more toxic on exposure to milder concentrations of salt,” Rosen said.

That means if water managers can keep salinity lower in the estuary, the toxic impacts from blooms could be reduced, lessening the threat to humans and wildlife. But “threading the needle” — keeping both waters flows and salinity in the right zone — would take a precise timing of water releases. Lake releases now often come in huge pulses designed to safeguard the lake’s aging levee but less suited to protect the health of the estuaries.

Manipulating the salinity might also require a network of pumps drawing fresh water from different sources other than the lake, he said. In Holland, harmful blooms are managed with small reservoirs used to manipulate salinity.

Water flow would also have to be considered, since algae mats piling up in marinas and canals can cut the amount of oxygen in water and lead to fish kills, never mind the smelly mess that aggravates homeowners.

“If you can tell where salinity is that causes death and leaking [toxins] will be,” Rosen said, “and if it’s not near people, probably that would be good.”

Follow Jenny Staletovich on Twitter @jenstaletovich
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Old 06-13-2019, 01:48 PM
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Originally Posted by pje View Post
For USGS scientists, an important unanswered question was at what point lake algae, which can be good for fish, turned toxic as it traveled to coastal waters. So in 2016, after state investigators confirmed that toxins called cyanobacteria in the St. Lucie estuary and the Indian River Lagoon had likely come from the lake, USGS launched a project to examine how two types of cynobacteria interacted with brackish estuary water.

During a bloom last year, USGS researchers scooped up algae from Eagle Bay on the lake’s north side and over four days exposed it to different concentrations of sodium chloride “simulating what it would be like if the organism were moving down through saltier water,” Rosen said.

As salt increased, they found membranes lining the cell walls of the algae began to break down, releasing toxins. At levels about half as salty as ocean water, the most common of the two algae began releasing toxins. At a quarter the amount, toxins began to leak in the less prevalent algae. Scientists noted too that the amount also spiked at lower levels of salt.

“It increased in the short range before it dropped off, so it’s possible the cells are slightly more toxic on exposure to milder concentrations of salt,” Rosen said.

That means if water managers can keep salinity lower in the estuary, the toxic impacts from blooms could be reduced, lessening the threat to humans and wildlife. But “threading the needle” — keeping both waters flows and salinity in the right zone — would take a precise timing of water releases. Lake releases now often come in huge pulses designed to safeguard the lake’s aging levee but less suited to protect the health of the estuaries.

Manipulating the salinity might also require a network of pumps drawing fresh water from different sources other than the lake, he said. In Holland, harmful blooms are managed with small reservoirs used to manipulate salinity.

Water flow would also have to be considered, since algae mats piling up in marinas and canals can cut the amount of oxygen in water and lead to fish kills, never mind the smelly mess that aggravates homeowners.

“If you can tell where salinity is that causes death and leaking [toxins] will be,” Rosen said, “and if it’s not near people, probably that would be good.”

Follow Jenny Staletovich on Twitter @jenstaletovich

Interesting read. I could see this being another case of where we try to fix a problem we created and end up messing something else up and making things worse
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Old 06-13-2019, 03:43 PM
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It's the ACOE who pulls the strings, and they are military and arrogant. Who cares what civilians want?
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Old 06-13-2019, 05:04 PM
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Originally Posted by pje View Post
Blue-green algae naturally occur in fresh water, including Lake O, and provide the foundation for the food chain that has made the lake a destination for bass anglers and birders. But fed by too many nutrients flowing mostly off farms and ranches to the north, Lake O’s algae can explode into dense blooms that block light, smother life and sometimes release toxins that can make people and wildlife sick.


Last year, Hurricane Irma and high run-off from ag fields to the north helped set the stage for one of the worst blooms in recent history. Gary Goforth, an environmental engineer and former chief engineer for the South Florida Water Management District, has estimated that 2.3 million pounds of phosphorus, one of the nutrients that feeds blooms, flowed into the lake — the highest amount ever recorded.

That helped trigger summer-long blooms that at times covered up to 90 percent of the 740-square-mile lake.

When summer rains pushed lake levels up, the U.S. Army Corps of Engineers then released the algae down the two rivers to protect the aging Herbert Hoover dike.

What followed was another summer of misery, mostly along the Caloosahatchee where milkshake-thick blooms fouled the riverbanks and washed into Pine Island Sound, helping fuel ongoing saltwater algae as the dead freshwater algae became food for the red tide.

Phosphorus has been removed or greatly reduced from most commercial based fertilizers in florida for a few years now. The state implemented best management practices which mandates amounts used includes farmers and landscapers. South Florida has been at nearly a O Phosphorus rate for 5 years or so it seems. Its your middle number on bags of fertilizer, majority of our mixes 20-0-10, 15-0-15, for turf and 8-0-10, 13-3-13 for ornamentals. Same goes for areas around mouse ville, if you don't think its has to do with over population (developments) your not paying attention. The area all around Orlando have exploded with growth, I've been traveling to the area on a regular basis for the last 5 years for my sons travel lacrosse. First year we played on a field in the middle of no where. Over the next 5 every trip there was a new community built in the swamp. The natural mother nature filter that man kind has been bulldozing over. They cut down cypress trees in Orlando like its melaleuca in the everglades. So much for protection for a so called protected tree.
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Old 06-13-2019, 05:14 PM
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Crab, the first time I went to Kissimmee, y'know what they had on Main Street?

Hitching posts!
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Old 06-14-2019, 06:27 AM
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You`re aging yourself Bill!
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Old 06-14-2019, 06:51 AM
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Originally Posted by rzotti View Post
You`re aging yourself Bill!
Get yer walker painted yet???

I bought some land on Merritt Island, btw.
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