Called the Benthic Underwater Microscope Imaging PAM, or BUMP, this microscope is diver-operated and allows scientists to study the relationship between corals, algae, and photosynthesis in detail ...

Called the Benthic Underwater Microscope Imaging PAM, or BUMP, this microscope is diver-operated and allows scientists to study the relationship between corals, algae, and photosynthesis in detail ...

Five years ago, golden algae was discovered in Saguaro and Apache lakes, also along the Salt River. Officials have used algaecides to control blooms in smaller urban lakes.

PHOENIX — Fish-killing algae that first showed up in Phoenix a year ago have spread to lakes throughout the metropolitan area and have proven to be stubborn and sneaky.