robin gray joins us now, in new orleans, great to see you. why are fisherman so concerned. >> good evening, from a wet new orleans here, fisherman are worried because they are concerned that the divisions are going to push fresh water into salt is water mash,s. effecting the ecosystem, and their livelihood. but today, a brand new report from a major environmental group says that this new master plan is $50,000,000,000.50 year plan, will actually help the economy and boost the states. it used to be a fisherman's paradise, it use to be. >> life is delicate. >> crab, shrimp, fish. >> fisherman was born and raised on these once fertile marshes. >> it is a boat launch. people fished. come from all over the united states. come fishing out here. it used to be really great, really good. >> completed in 1991, the diversion is a canal that sends fresh water from the mississippi river, to saltwater mashes. the goal was to revitalize the marsh land. diversions like that, are among the 109 projects in the new coastal master plan. rather than the dredging