'Tragic sight': Hundreds of dead eels and trout in Dunedin stream 15 Jan, 2021 03:00 AM 2 minutes to read Low oxygen and high temperatures appear to have caused the deaths of hundreds of eels and trout in a Dunedin stream. Photo / File Low oxygen and high temperatures appear to have caused the deaths of hundreds of eels and trout in a Dunedin stream. Photo / File Otago Daily Times Low oxygen and high temperatures appear to have caused the deaths of hundreds of eels and trout in Dunedin's Silverstream. Mosgiel angler Bevan Campbell, who alerted Fish & Game Otago and the Otago Regional Council, said he had never seen anything like it.