<prompt> Qedela umusho olandelayo:  <response>: Ukuchitheka kukawoyela e - Exxon Valdez kwalimaza ama - killer whale ePrince William Sound naseKenai Fjords esifundeni sase - Alaska. Amalungu ayishumi nanye cishe ingxenye yawo eqenjini elilodwa elihlala lapho anyamalala ngonyaka owalandela. Ukuchitheka kwalimaza ama - salmon nezinye izilwane eziyidla, okwathi kamuva kwalimaza nemikhomo yendawo. Ngo-2009, ososayensi balinganisela ukuthi inani le-AT1 elifudukayo elibhekwa njengengxenye yenani elikhulu labantu abangama-346 abafudukayo, lalinamalungu ayisikhombisa kuphela futhi lalingakaze likhiqize kabusha selokhu kwachitheka. Kulindeleke ukuba lesi silwane sife. 