More than three-quarters of marine mammal and sea turtle populations have significantly increased after listing of the U.S. Endangered Species Act (ESA), according to a study published January 16 in the open-access journal PLOS ONE by Abel Valdivia of the Center for Biological Diversity in California, and colleagues. The findings suggest that conservation measures such as tailored species management and fishery regulations, in addition to other national and international measures, appear to have been largely successful in promoting species recovery, leading to the delisting of some species and to increases in most populations.
