People on Quadra Island, B.C., are concerned that leeches may be killing salmon in a spawning creek. Bill Dubois, who has lived near Hyacinthe Creek for decades, says he has seen leeches on salmon who returned to spawn in the past. The leeches are believed to be a natural phenomenon, but the amount this year is concerning, said Lauren Miller, a director with the Quadra Island Salmon Enhancement Society. While leeches have been found on spawning salmon on Quadra Island before, residents are concerned about the amount this year. Long-time Quadra Island, B.C., resident Bill Dubois says he has never seen spawning salmon covered in this many leeches.

Source: CBC News December 16, 2017 15:00 UTC