`` I 'm extremely worried because I have customers that [ have ] already canceled trips , '' Boola told CNN Saturday . NEW : Fishing and tourism grind to a halt in many places . Venice wildlife official warns of `` multi-decade impact '' from spill . Dispersants to be applied near spill site Sunday , the Coast Guard says . President Doug Suttles announces he will visit the spill area on multi-decade .
NEW : Fishing and tourism grind to a halt in many places . Venice wildlife official warns of `` multi-decade impact '' from spill . Dispersants to be applied near spill site Sunday , the Coast Guard says . President Doug Suttles announces he will visit the spill area on multi-decade .