NEW : BP will try lower marine riser package cap next . About 25 percent of the Gulf of Mexico exclusive economic zone has been put off limits , according to the National Oceanic and Atmospheric Administration , and fishermen are worried the gushing oil will take a more serious toll than Hurricane Katrina did in 2005 . NEW : Lower marine riser package cap will capture most , but not all of oil flow . Comment: Officials : Only sure option is relief wells , still 2 months away . NEW : Parish president wants BP to build sand barrier islands now . Workers toil on beaches and in marshes to clean up .
NEW : BP will try lower marine riser package cap next . NEW : Lower marine riser package cap will capture most , but not all of oil flow . Comment: Officials : Only sure option is relief wells , still 2 months away . NEW : Parish president wants BP to build sand barrier islands now . Workers toil on beaches and in marshes to clean up .