The mega-decline in cod and other fisheries across the North Atlantic Ocean threatens the livelihood of fishermen and communities in New England and Atlantic Canada. One suspect in the disappearance of cod and other groundfish is the food source for their young: a planktonic copepod crustacean. The first transcriptome for the key North Atlantic copepod Calanus finmarchicus has been published; scientists will use it to decode the genetic instructions that are resulting in population changes....