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Topic Title: Salt-water intrusion vs. Opening the locks at the port.
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Created On: 04/07/2018 04:28 PM
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 05/21/2018 06:54 AM
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scombrid

Posts: 18021
Joined Forum: 07/24/2003

Originally posted by: cheaterfiveo Just wondering why the west coast of Fla is so pristine. There are way more people, houses and boats running on that waterway. Seagrass is abundant and there are lots of inlets. Must be the poop

Different type of ecosystem. Our lagoon is a lagoon with long water residence time. It makes it a lot more sensitive to nutrient inputs, much like the interior lakes that have flipped into plankton dominated regimes from their former existence as clear water plant dominated systems.

If we flushed IRL enough we could get it to function like the west coast.

How much structural re-engineering would it take to make the Banana and Indian into tide dominated systems with short little islands and tons of inlets like the west coast?

I am pretty sure "opening the locks" isn't going to do it.

How much would it cost to maintain all of those man-made inlets?

How much tolerance do the residents of Brevard have for the enhanced storm surge risk that would come with having lots and lots of open breaches in the barrier strip?

Wouldn't it be preferable and more affordable to reduce the nutrient load to one that is suitable for the natural lagoon ecosystem?

Also, the west coast isn't "pristine". It has it's own problems. It just isn't as bad as the current state of IRL.

Tampa Bay has water quality has improved with clean water act compliance though.

 



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 05/21/2018 11:05 AM
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stokedpanda

Posts: 4226
Joined Forum: 09/04/2015

playlinda has a few spots that appeared to have breached not too long ago, but have closed up. Next big one will surely spill across

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 05/22/2018 09:53 AM
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tom

Posts: 8013
Joined Forum: 07/25/2003

"Must be the poop..."

Or lack of it. 

In addition to a) geology and b) flow,

a.  west coast FL geology is tidally dominated and so has shorter islands, more inlets

b.  the west coast of FL is, um, downhill, abundant upland freshwater input to the Gulf

the difference is a classic Florida problem, memory loss. 

Tampa Bay, for example, was dead by the '70s.  (time frame: Clean Water Act '72 and EPA '70)

Tampa and the surrounding communites implemented many of the controls during the late '70 and early 80's we're just getting around to addressing.  

Improved sewage treatment, elimination of point sources, encouragment of native horticulture, fertilizer controls, etc.

These have already provided some obvious improvements there,

and, 

Tampa Bay has a 40 year head start on us.  

Our improvements will be slower to realize because of the longer residence time of our water, 

when, 

we finally get our act together and implement the controls.  

some Tampa Bay history here for reference:  http://scholarcommons.usf.edu/cgi/viewcontent.cgi?article=1146&context=basgp_report



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