How Is The State of Our Ocean Fisheries?

I was reading an article about how a commercial fishing moratorium, which was placed on commerical bottom fishing off the coasts of North Florida and Southern Georgia, was set to begin January 3 has been moved to June 1. The cause of the ban is a seriously depleted red snapper stock. What was once thought to be as low as 3 percent of what is needed is now said to be around 14 percent. But I wounder how they really know. I am all for commercial fishing, I love to eat seafood. But what are we doing to our oceans and are we doing enough to help sustain them for our future generations? They truly are one of the last frontiers that we don't even know jack about. You could send out a hundred missions and find new things everyone of them. I think that we really need to dedicate more research into how our fishing is impacting the worlds oceans. I got the idea for this from reading this article here. I was also doing some reading here and here.