In light of the Deepwater Horizon oil spill and response, the question came up in another thread about the safety of using NSW off Palm Beach. I sent an email to Dr. Sandra Brooke, Director of Coral Conservation at the Marine Conservation Biology Institute, regarding this issue of using NSW from the Atlantic coast of Florida in our aquariums. She graciously replied (thank you very much Dr. Brooke!) with the following and gave her permission for me to share this with you all:
Hi Spencer
At the moment there are no indications that the water off western Florida, the Keys or the Atlantic coast are contaminated; however even small amounts of toxins in a closed system could cause havoc, so the safest thing would be to avoid it. The EPA stance is unfortunately correct, the extensive use of dispersants has created a huge level of uncertainty in where the oil will go, and how it will behave. I'm sure you know this from the news, but there are two main problems with dispersant/oil plumes. One is the direct toxicity, and the other is the reduction in oxygen as the bacteria consume the organic material. Having said that, given time, bacteria will degrade the oil, and natural water mixing will overcome oxygen depletion, but we're still trying to assess how much damage it will do in the meantime. The processes involved are somewhat understood, but with this huge quantity of oil spewing for so long, its hard to know what will happen. I have attached a brief overview of potential effects of oil/dispersant on various components of the GOM - it's not comprehensive by any means, but might give you a starting point.
WRT your other concerns, so far the Flower Gardens seem to be out of the oil footprint, but eddies off the loop current tend to move west, so if the oil gets entrained, it could be a problem, again, especially if the oil is dispersed through the water column. Same with the Tortugas and Keys, if it stays out of the LC, they should be OK. The deep reefs in the northern Gulf on the other hand are in the danger zone. The best developed and most studied Lophelia reef is less than 100km to the NE of the leak and that was my biggest concern right from the start. There are 2 research cruises heading out to the Gulf to look at benthic communities. The Seward Johnson will be using the JSL sub to study the Tortugas, Pulley Ridge and the Florida Middle Grounds. It left yesterday so may have a web link set up soon. The other is a BP funded cruise to the deep coral reefs close to the leak. That starts on the 21st, and will have a link through the USGS website.
Just to clarify: the oil has not reached most of western Florida, but it has hit the panhandle so the water from northern Florida should definitely be avoided.
I hope this helps, if you have any more questions I'd be happy to try and answer them
Regards
Sandra
Sandra Brooke PhD
Director of Coral Conservation
Marine Conservation Biology Institute
Bellevue WA 98004