A complex decision-making matrix: “The dilemma is this: if conservation objectives for killer whale population recovery are actually achieved, the resulting increase in predation pressure on Chinook [salmon] stocks will compromise the ability to meet recovery objectives for Chinook salmon,” University of Washington scientist Rob Williams and co-authors write in the journal PLoS One. “In light of competing objectives, a precautionary management strategy would reduce fisheries quotas temporarily while implementing actions that encourage greater production of Chinook salmon.” Read more here.