Fish, Hurricanes, and Fish Hurricanes

Here' a shot of some of the friendly bass discussed in the previous post. It occurred to me that the reason we enjoyed Sunday's dive so much and the reason we saw so many fish were the same. The conditions were in a word, nice.
So what happens when the river is high or floods?
We know what happens to our homes when tropical systems like "Opal" make their way into the Tennessee Valley. What goes on in their world?
I have read about wave action harming marine life in various ways, but is it possible for a tropical system to have a positive impact on the environment?
When I was in Texas a dying Pacific Hurricane moved over Mexico and dumped torrential rains on west Texas. Lake Fort Phantom Hill rose above the spillway flooding the creek below. When the water receded, deeper pockets were filled with fish. Many of them gars. Maybe by removing some of the predators, this storm helped the striped bass populations for example.
This year Hurricane Dennis did a favor for the Florida Keys National Marine Sanctuary that man had been working on for 3 years. The USS Spiegel Grove was sunk near Key Largo in 2002. Officials wanted the 510 foot ship to land upright on the bottom to become an artificial reef. She ended up on her side. Attempts were made to right the ship but they all failed. Enter Hurricane "Dennis". The storms wave action pushed the vessel back up. For more on this amazing story check out this link: http://www.spiegelgrove.com
"Jose" was named yesterday in the southwest Gulf and made landfall overnight in Mexico. That's named system #10. The official forecast for the Atlantic season calls for a total of 18 to 21 named storms. 9 to 11 becoming hurricanes, with 5 to 7 becoming major hurricanes. But how many end up like "Irene" and recurve away from the U.S., becoming the so-called "fish hurricane"?
Even these storms have an impact. Upwelling of cold, nutrient rich water causes the food chain to get a boost in areas where fish and other critters may not spend much time.
GPS and communication technology is allowing scientists to track animal movements like never before. I think it would be interesting to track fish before and during hurricanes to see where they go and how long it takes them to return.