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![]() wrote in message ... On Mon, 30 Jan 2006 16:51:11 GMT, "NOYB" wrote: They stopped the freshwater releases down the Caloosahatchee River on January 16th. The water has cleaned up, the salinity has increased again, and the pelagics are back on the nearshore reefs. How much do you think the salinity was affected 6-8 miles out in the gulf? I've been out 8 or more miles and have seen a distinct line where the Caloosahatchee brown water runoff meets the green/blue water of the gulf. And it wasn't a tide line, because a regular tide line would not reach that far out into the gulf. The contrast from the brown to the green was astounding. Let's not assess blame for every bad day of fishing to the Caloosahatchee problem. Of course not. But ask any angler who goes out on a regular basis whether they see a correlation between when the Corp dumps water down the river, and when the water quality and fishing decline. The evidence is anecdotal at worst, and empirical at best...but the fishing is undoubtedly affected by the amount of freshwater dumped down that river..and how long the dumping continues. Depending upon the volume, it pushes most of the fish to deeper water. It doesn't affect certain fish as much, because they're accustomed to brackish water. But permit aren't going to show up when the water salinity is low. The fact that I found permit and cobia inside 5 miles just 2 weeks after they stopped the heavy freshwater release is more than a coincidence. When you are out on May Reef you will be as impacted by garbage from Tampa Bay as you will be by the Caloosahatchee. I don't agree. There is a lot more chance for dilution through diffusion once the water from Tampa Bay travels 160 miles south. If low salinity was a problem you wouldn't catch any fish in the Estero bay in the summer since it seldom gets above 16 on an outgoing tide. Snook, tarpon, and redfish are accustomed to brackish conditions. Permit, most sharks, cobia, and many reef fish are not. How many permit, sharks, and cobia do we find in Estero bay in the summer months? People seem to seek the places where the fresh water is flowing the fastest. My summer numbers in the Estero River cruise in the single digits. I will agree 100% that San Carlos Bay and Pine Island sound are impacted by low salinity and have been for 40 years. The main problem with the water is still tied to nutrients. We have the same problems with all the fresh water streams entering the estuary, some worse than others. Finding out where they come from is one of the objectives of all that water testing we do. Here's a post I snipped from another forum: " I launched kayaks at Ft Myer's Manatee Park yesterday. we didn't see any manatees and I didn't fish much. I took my hydrometer with me and checked the salinity/specific gravity of the surface water just below the power plant outflow. Salinity measured at 6 ppt, specific gravity at 1.004. That's virtually salt free and also the reading I got during the peak of last summers rainy season on the Peace River. We paddled about a mile east- farther back into the Orange River. I measured the surface water again and got a salinity reading of 0.0 and specific gravity of 1.0. That's the normal reading for fresh water. The Peace and Myaka Rivers within a couple of miles of the harbor are measuring between 14 and 22 parts per thousand for salt content. Normal Gulf water usually measures salinity about 36 ppt/ specific gravity 1.027. Surface water usually reads more fresh than water below the surface but I would think the power plant outflow water having been drawn from the Caloosahatchee river and being well mixed before being added to the Orange River should have been much more salty. Especially considering that they are saying the Caloosahatchee river is too salty right now. What is healthy for the Caloosahatchee river?" Did you see where he said that the normal gulf water measures around 36ppt and 1.027? I can guarantee you that for the past 5 months, the water flushing over May, Wiggins, GH, Doc Kline, etc. reefs (all within 10 miles of shore) has been nowhere near that number. |
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