Oil spill spared fish

Almost 30 years after the oil tanker Exxon Valdez hit Bligh Reef and smeared Prince William Sound with more than 11 million gallons of Alaska crude oil, a team of state and federal scientists have concluded the spill – as bad as it looked and as much impact as it had on marine mammals and birds – appears to have done no real damage to fisheries. “We found no evidence supporting a negative EVOS  (Exxon Valdez Oil Spill) impact on herring, sockeye salmon, or pink salmon productivity, and weak evidence of a slightly positive EVOS signal on Copper River Chinook (king) salmon productivity,” the study says. “It is unclear how EVOS may have impacted Chinook salmon positively.” Somewhat surprisingly, however, the study found two non-oil spill events – one natural and one manmade – that appear to have caused significant changes in Sound fisheries. And one of them, a naturally occurring spill of fresh water, appears to be what crippled herring stocks there.  click here to read the story    link to the study   20:16