We can't control the waters mate the only way around it is to shut down areas,look off the north yorks coast now the start of the herring spawn,already a 250 ton "herring trawler" in dutch owned but reg's in the UK.Now the likes of this ship will trawl for herring but what's out there trying to eat the herring spawn,all yer big an little cod,Bye catch they cant land them.Not been funny but Herring isnt a mega selling fish in the Uk,so why allow fishing during the herring spawn when you know the cod stocks are going to be damaged