the top 50' of the structure would have to be removed per shipping regulations. this so happens to be where the most productive place in the water column because sunlight reaches this area. there isn't much primary production going on at 400', so the platform would not be nearly as productive sitting on the bottom of the seafloor. they need to remain standing for the best habitat, but who is going to claim the liability? who is going to pay for the lights/buoys/maintenance on these structures? is it worth it? its not for the oil companies
