<prompt> Ramba uchinyora ndima iyi - Kutsvakurudza kwakananga pamusoro pokusvibiswa nemafuta kunokuvadza hove kwakatanga nomwoyo wose muna 1989, pashure pokunge ngarava inotakura mafuta yeExxon Valdez yarova matombo muPrince William Sound, Alaska uye yakadururira marita anenge mamiriyoni 11 emafuta asina kugadzirwa mumvura yakapoteredza. Panguva iyoyo, kudonha kwemafuta kweExxon Valdez  <response>: rakanga riri guru zvikurusa munhau yeUnited States. Kwakanga kune migumisiro yakawanda yakaipa yezvakatipoteredza yekudonha kunosanganisira kurasikirwa kwekurasikirwa kwemabhiriyoni ePacific herring uye mazai epinki salmon. Tsanga dzePacific dzakanga dzichangotanga kubereka muna March pakaitika kudonha, zvichiita kuti inenge hafu yemazai evanhu ava asvibiswe nemafuta asina kugadzirwa. Tsanga dzomuPacific dzinoberekera munzvimbo dziri pakati penzvimbo dzomugungwa nenzvimbo dziri pasi penzvimbo dzomugungwa, zvichiita kuti mazai acho asanyanya kukuvara asvike nyore nyore pakusvibiswa. 