Research

Research published in peer-reviewed journals by staff from the Lodi and San Francisco Bay-Delta offices of the Fish and Wildlife Service in collaboration with their partners can be accessed below. For additional information or data on Delta smelt or longfin smelt, please email  or [email protected] or call 916-930-2657. 

A man in a white coat, mask and rubber gloves with lab equipment
Image Details

  • , published in March 2021

  • , February 2021

  • , January 2021

  • , April 2020

  • March 2020

  • , December 2019

  • , December 2019

  • , April 2019

  • , March 2019

  • , December 2017

  • , June 2017

  • , January 2016

    Four small silver fish placed on a grid with numbers
    Image Details

  •  May 2015

  • , March 2014

  • , November 2013

  • , July 2011

  • , September 2010

News

longfin smelt on black background
U.S. Fish and Wildlife Service Lists Bay-Delta Longfin Smelt as Endangered鈥�
The U.S. Fish and Wildlife Service is listing the San Francisco Bay-Delta distinct population segment of longfin smelt as endangered under the Endangered Species Act. The best available science indicates longfin smelt populations have significantly decreased throughout the San Francisco Bay estuary...
Press Release