My article is from a peer review journal on the decline of herring stocks in the prince william sound region. In 1993 fish and game were estimating the pws herring biomass to be 121,000 metric tons. Only 27,000 metric tons arrived though. Fish and game acted by closing the fishery from 1994-1996. In the 1997-1998 fishery 3,698 – 4,536 metric tons were harvested. Since 1999 the fishery has been closed and plans to remain closed. Herring take 4 years to recriut to the population. No strong year class has recruited since the 1988 year class in 1991 and 1992. The blame of this event is controversial. Scientists say the 1989 Exxon Valdez oil spill killed off the herring. Hydrocarbons left from the oil spill kill the eggs of the herring. Exxon blames a number of things from overfishing, poor nutrition, lack of food, too much competition with hatchery pink salmon, whale predation , low water temperature , and disease outbreak.