EDGE New England

German researchers claim that some males of a species of freshwater fish related to the guppy will have sex with other male fish in order to attract females.

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.

For the first time since 2007, commercial and recreational fishermen will be able to cast their lines for ocean salmon from the Canadian border to Mexico.

The world should ban the export of Atlantic bluefin tuna, a U.N. panel declared Friday, backing a proposal that is fiercely opposed by Japan, which prizes the fish as a key ingredient in sushi.

Alabama Agriculture and Industries Commissioner Ron Sparks on Wednesday extended a two-year-old order banning the sale of untested fish from Vietnam and China in Alabama.