TOKYO—Japan’s health ministry said on Tuesday it had ordered the suspension of shipments of black rockfish caught off Fukushima prefecture after radiation exceeding an upper limit was detected in a catch late last month. The development comes on the heels of an announcement by Taiwan that it would relax a ban on food imports from…

Rockfish are often featured on popular “catch and cook” YouTube channels, because they make such tasty fish tacos. But if you see this particular rockfish, you should consider throwing it back, and here’s why. The China rockfish (Sebastes nebulosus) is truly a spectacle to behold. With its dark-bluish or black body, speckled flecks of yellowish,…