Which of the following best expresses what Walker and Salt would likely say about using the maximum sustainable yield model in fisheries? Which of the following best expresses what Walker and Salt would likely say about using the maximum sustainable yield model in fisheries? Fishing effort should be kept at the maximum sustainable yield to ensure maximum reproduction (i.e., yield) in the fishery. Maximum sustainable yield as a concept has no usefulness in managing a fishery. Fishing effort should be kept beyond the maximum sustainable yield to accrue maximum short-term gains. Fishing effort should be kept below the maximum sustainable yield to allow room for error