Louisiana’s crab bans spurred by changes in climate and habitat

South Louisiana’s blue crab population is on the decline, pummeled by environmental and man-made threats. Increased trapping, less rainfall, no recent hurricanes, wetlands loss, predators, oil spills, closing of the Mississippi River-Gulf Outlet Canal and river-water diversions have taken their tolls. In response, Louisiana’s Wildlife and Fisheries Commission last summer decided to ban crabbing and trap use for thirty days, starting on February 20 of this year.,, The state’s diversions of Mississippi River water to fend off oil from the BP spill, and separately as a way to rebuild wetlands, have pushed crab larvae and babies into the sea where predators loom, Lively said. At this point, it’s unclear which factors are most to blame for a decline in the state’s blue crabs, Jeffrey Marx, LDWF marine biologist and crab program manager, said last week. Less rainfall and ongoing predation on crabs are negatives, he noted. Predators include red and black drum, sea catfish, sheepshead and spotted sea trout. (very interesting) Read the article here 17:47