Tag Archives: water temperature trigger moulting

Green crab shell secret cracked

Because they all seem to moult together, they all spend about 24 hours in a vulnerable but more docile state before the new shells harden. The strategy for fishermen would be to catch the crabs just before moulting. Then processors could manipulate the water temperature to try to trigger moulting, and sort crabs for processing as they cast their hard shells. Read the rest here 10:34