 The report (as at 24 May 2006) said that in Norwegian sea, in the Barents Sea (east of the North Cape) catching red king crab is allowed with license only due to a fisheries agreement between Norway and Russia; but elsewhere in Norwegian seas, the catching of king crab is much freer, but nonetheless, if someone catches one, it is illegal to throw it back in the sea.Mature female red king crabs must stay in warmer water (near 4 °C) to ensure the eggs will be ready for hatching, while the male red king crabs stay in relatively cold water (near 1.5 °C) to conserve energy.In spring (May), female red king crabs move to shallow coastal areas to molt and spawn, and males join the females in the shallow water before molting.