Out with a skipper in Cornwall says the med octopus have decimated crab and lobster no amount caught since January ,now not allowed to return any octopus, another skipper had 7k of octopus in a day's fishing, he was complaining he'd not gotten a tuna quota, the guy I fished with did for the second time but he seems to have been heavily involved in getting it started in the first instance. He also said many will put the octopus invasion down to global warming but it occured in the 40's and before that in 1904 of something so it's a cycle. I referred to the great famines in Indo china from rats