Here is another amazing poster from Memuco: http://visual.ly/unnatural-disasters. It really puts into perspective how endangered the Vaquita really is. The poster also features the Baiji (previous post) and the Yangtze River Finless Porpoise with a lot of information on each cetacean.
The damming of the Colorado River in the United States has led to a decrease in freshwater input into the upper Gulf of California. The long-term impact on the Vaquita from this drastic habitat alteration is of serious concern, though not as much as gillnet fishing.