EDGE on the Net

A Louisiana researcher looking into ways to produce more and bigger crawfish in the same space said she’s had success with lighting the ponds at night and believes her work could pave the way for expanding crawfish farming in cooler areas.

In an unusual health study, researchers analyzing toxin levels in tens of thousands of toenail clippings determined that mercury from eating fish does not raise the risk of heart disease or stroke.

Mike Secondo remembers the days when Plymouth’s docks outshone its rock. Tourists swarmed the town pier in the 1970s and ’80s, snapping pictures and bantering with commercial fishermen as they unloaded another shimmering haul for Secondo’s company.

The federal government announced Tuesday it was nearly tripling the size of an area in the Gulf of Mexico that’s closed to fishing because of a massive oil spill off the coast of Louisiana.

Japan will not comply if a ban is imposed on international trade in Atlantic bluefin tuna, prized by Japanese for sushi, a senior official said after the United States threw its support behind the move ahead of a crucial vote.