ERIC PAUL ZAMORA/THE FRESNO BEE
A Delta smelt provided by UC Davis for research is held by the Bureau of Reclamation’s Ron Silva at the Tracy Fish Collection Facility located near the Tracy Pumping Plant  on Tuesday, February 12, 2013 near Tracy, Calif.
ERIC PAUL ZAMORA/THE FRESNO BEE A Delta smelt provided by UC Davis for research is held by the Bureau of Reclamation’s Ron Silva at the Tracy Fish Collection Facility located near the Tracy Pumping Plant on Tuesday, February 12, 2013 near Tracy, Calif. ERIC PAUL ZAMORA/THE FRESNO BEE Fresno Bee Staff Photo
ERIC PAUL ZAMORA/THE FRESNO BEE A Delta smelt provided by UC Davis for research is held by the Bureau of Reclamation’s Ron Silva at the Tracy Fish Collection Facility located near the Tracy Pumping Plant on Tuesday, February 12, 2013 near Tracy, Calif. ERIC PAUL ZAMORA/THE FRESNO BEE Fresno Bee Staff Photo