The rain floods their holes that they live in, so they climb out and this is the time of year they spawn, so they look for water to wash their eggs off in. Guess my fish are getting some extra protein these days! LOL! I don't think they are spawning in my pond, they normally go to the ocean for that.
Here's an article of how out of hand they can get.
http://www.compasscayman.com/caycompass/2012/05/16/-Hurricane--crabs-invade-Brac/
Here's an article of how out of hand they can get.
http://www.compasscayman.com/caycompass/2012/05/16/-Hurricane--crabs-invade-Brac/