Department of Water Resources Home
AES Banner
Staff
Brian Schreier Brian Schreier is the Chief of the Aquatic Ecology Section. He was previously an Environmental Scientist and has worked with the Aquatic Ecology Section since June 2009. He has a Bachelor of Science in Zoology and conservation from the University of Wisconsin – Madison (2003) and a Master of Science in Ecology from the University of California – Davis (2007). Brian’s responsibilities include planning and conducting IEP Pelagic Organism Decline (POD) special studies. Current projects include an analysis of predators of larval delta smelt using genetic techniques, and examining historical beach seine data throughout the Bay-Delta system for patterns in fish community composition.
 
Jared Frantzich Jared Frantzich is an Environmental Scientist and has worked with the Aquatic Ecology Section since January 2011. He previously worked in North Central Region Office’s Water Quality Evaluation Section, where he coordinated with USGS in 2007 on the establishment of a continuous and real-time turbidity monitoring effort in the Central Sacramento-San Joaquin Delta. He is now co-lead on the interdisciplinary monitoring effort in the Yolo Bypass for the collection of baseline data on: juvenile and adult fish, lower trophic levels (phytoplankton, zooplankton and aquatic insects), hydrology and physical conditions. In addition he works with other section members on special studies related to fisheries and general aquatic ecology in the Sacramento-San Joaquin Delta. He received a Bachelor of Arts in Environmental Studies from California State University Sacramento.
 
Naoaki Ikemiyagi Naoaki Ikemiyagi is a Environmental Scientist in the Aquatic Ecology Section. He assists with field and office components of Yolo Bypass research on distribution, migration, and abundance of the fish assemblages. He also works with Jared Frantzich on the Large Mouth Bass in the Yolo Bypass. Naoaki received his degree in Biological Sciences from University of California, Davis.
 
Lynn Takata Lynn Takata is an environmental scientist in the Aquatic Ecology Section. She received a Bachelor of Science in Biology at U.C. San Diego, and a Master of Science in Marine, Estuarine and Environmental Science at the University of Maryland. Prior to joining the section in February 2012, Lynn worked on estuarine invasion policy and research with the California State Lands Commission and the Smithsonian Environmental Research Center, and on the biogeographic characterization of marine protected areas with the National Oceanic and Atmospheric Administration. Currently, she is examining factors that influence the residence time, emigration, and growth of juvenile Chinook salmon in the Yolo Bypass through the analysis of long-term monitoring datasets. Lynn also provides support for the section's other studies on the aquatic ecology of the Sacramento-San Joaquin Delta.
 
 

Jasmine Shen  is a Fish and Wildlife scientific aide in the Aquatic Ecology Section.  She assists with the long-term Yolo Bypass study monitoring the impacts an engineered floodplain may have on native fishes. She recently received a Bachelor of Science degree in Wildlife Biology from University of California, Davis where she was involved with various projects. Some of which include research surrounding delta smelt age and migration patterns, the South Bay Salt Pond restoration project, and a senior group project examining the differences of fish assemblage in tidal vs. tidally muted vs. non-tidal habitat of Suisun Marsh.

 
 
Haley Carlson is a Fish and Wildlife scientific aide in the Aquatic Ecology Section. She received a Bachelor of Arts degree in Environmental Studies with an emphasis in policy at U.C. Santa Cruz. Prior to joining the section she performed salmonid monitoring and restoration on the mid-Klamath River, was a garbage woman in a remote area of the North Cascades , assisted in native trout restoration in Yellowstone National Park and worked for the CA Dept. of Fish and Wildlife’s Central Valley Angler Survey program.   She is currently involved in Yolo Bypass monitoring efforts.