SIU grad’s research illuminates pollution threats to endangered Calif. fish
The Sacramento Deep Water Ship Channel was still and quiet as the boat cut through the morning fog. For Cristina La, then a graduate student at Southern Illinois University Carbondale, this was the moment she had been preparing for over months of planning and lab work. Somewhere below the boat swam the last remaining stronghold of California’s delta smelt — a tiny, silvery fish whose decline has become a warning signal for the entire Sacramento-San Joaquin Delta ecosystem.