Identifying essential summer habitat of the endangered beluga whale Delphinapterus leucas in Cook Inlet, Alaska

In response to the critically low numbers of beluga whales Delphinapterus leucas in Cook Inlet, Alaska, USA, the US federal government listed this isolated population as endangered in 2008. Despite the curtailment of subsistence hunting in 1999, the abundance of Cook Inlet bel- ugas has remained low (