The waters off Russia's Sakhalin Island, a main feeding habitat for them in the summer, are being targeted for oil and gas development. (worldwildlife.org)
The main feeding habitat of the western Pacific subpopulation is the shallow (5 — 15 m (16 — 49 ft) depth) shelf off northeastern Sakhalin Island, particularly off the southern portion of Piltun Lagoon, where the main prey species appear to be amphipods and isopods. (en.wikipedia.org)
The authors then fed this habitat assessment into a statistical model to estimate what remained of these environmental conditions across Africa in 1995, and again in 2010. (scientificamerican.com)