Is Extinction Inevitable for Delta Smelt and Longfin Smelt? An Opinion and Recommendations for Recovery

摘要

“The basic lesson from the collapse of DeltaSmelt is that to save species, ecosystembasedactions have to be taken quickly tohalt irreversible change, or at least to guideinevitable change in a more favorable direction.The longer the delay, the harder the decisions,and the less likely they are to produce positiveresults. For the Delta Smelt, the time to makekey decisions for its survival in the Delta mayhave already passed.” (Moyle et al. 2016a).