Pink salmon populations augmented by hatchery programs hurt sockeye returns, study finds

Nations around the Pacific Ocean may have to cap the number of hatchery salmon they release if sockeye salmon runs are to return to sustainable levels, according to a new study. Record high numbers of pink salmon in the North Pacific coincided with the disastrously small 2009 Fraser River sockeye return, while the unexpectedly large 2010 sockeye return interacted with 40-per-cent fewer pinks, said Brendan Connors, co-author of the article published by the Canadian Journal of Fisheries and Aquatic Sciences. Read the rest here 12:34