Fisheries scientists in British Columbia have recovered the bodies, but have few other clues and no prime suspect.
So what is killing the giant sturgeon of the Nechako River?
Government scientists are asking for the public’s help to solve that mystery after 11 of the iconic and endangered fish were recently found dead in the Nechako in central B.C.
The fish were all adults of a species that can grow to six metres in length and live for more than 100 years.
Their bodies showed no visible external injuries and provincial scientists did not believe the deaths were caused by disease, chemical exposure, angling or gillnet fisheries, the Ministry of Land, Water and Resource Stewardship said….