Fish Physiology

AMERICAN RIVER, CALIFORNIA — INSTREAM FLOWS, WATER TEMPERATURES, AND GROWTH OF ANADROMOUS FISHES

Dr. Alice Rich designed and conducted laboratory and field physiology studies to determine the relationship between instream flows, water temperatures and growth of Chinook salmon, steelhead, and American shad  in the American River.  At issue were the effects of the diversion of water from the American River for domestic uses by the East Bay Municipal District.  The results of the studies were presented by Dr. Rich to the State Water Resources Control Board on behalf of Sacramento County.

YUBA RIVER, CALIFORNIA — THERMAL  IMPACTS OF REDUCED FLOWS ON CHINOOK SALMON AND STEELHEAD

AAR analyzed the thermal impacts of  water diversions on Chinook salmon and steelhead in the Yuba River  for the California Department of Fish and Game (DFG).  The results of the analysis were presented to the State Water Resources Control Board Hearings by Dr. Alice A. Rich.

PG&E’S DE SABLA-CENTERVILL HYDROELECTRIC PROJECT, CALIFORNIA — THERMAL IMPACTS ON SPRING-RUN CHINOOK SALMON

Dr. Alice Rich provided testimony on the existing thermal conditions within the Project Area.  The testimony included: (1) analyzing the physiological effects of water temperatures on the various life stages of Spring-run Chinook salmon; and, (2) analyzing the effects of water temperature-related mortality (both sublethal and lethal) on the population of Spring-run Chinook salmon in the Butte Creek and West Branch Feather River Systems

DELTA WETLANDS PROJECT, CALIFORNIA — THERMAL IMPACTS ON SALMONIDS

In a project in the Sacramento-San Joaquin River System in which water would be stored for later discharge, AAR provided an analysis of the thermal effects of the project on Chinook salmon.  Dr. Alice Rich provided testimony, on behalf of the California Department of Fish and Game (DFG), at the State Water Resources Control Board Hearings.

SAN JOAQUIN RIVER WATERSHED, CALIFORNIA — CHINOOK SALMON SMOLT QUALITY STUDY

AAR designed and conducted a Chinook salmon smolt quality study in the San Joaquin, Merced, and Tuolumne rivers.  Physiological smolt and stress indicators were monitored in emigrating fish during the parr-smolt transformation.  The data were then used to assess smolt quality at different sites (e.g., the rivers, the State Pumping Facility, fish trucked to Antioch) as the fish emigrated from the system.  Smolt quality was correlated to survival, using tag return data.

SAN JOAQUIN RIVER WATERSHED, CALIFORNIA — THERMAL CONDITIONS

The San Joaquin and its tributary rivers are listed as impaired by high water temperatures, under the State’s Clean Water Act Section 303 (d).  Dr. Alice Rich analyzed the physiological effects of water temperatures on the various life stages of fall-run Chinook salmon and steelhead and related the results of that analysis to water temperature-related mortality (both sublethal and lethal) on populations of fall-run Chinook salmon and steelhead in the San Joaquin River System.