The razorback sucker has survived in the river for more than 3 million years. Climate change could end that.
Low levels and warming waters threaten to increase invasive species in the Colorado River.
Colorado water officials hope to combat algae blooms caused by rising temperatures and an increased use of phosphorus-laced lawn fertilizers.
Unhoused Angelenos use the urban river as a source of sustenance, but a proposal to revitalize the waterway could push them out.
The alternative management planning process came about after the BLM in 2007 found that 54 miles of the upper Colorado River were eligible for a federal Wild and Scenic River designation.
The move is meant to help humpback chub, bonytail, razorback sucker and Colorado pikeminnow in an often-depleted section of the Colorado River.
Should Colorado River water be used to grow alfalfa or subdivisions in the Phoenix metropolitan area?