Science activity

Description The aim of this pilot effort is to begin assessing methods and developing protocols for incorporating measurement of fish body condition (Fulton’s Condition Index, K) into standard Delta Juvenile Fish Monitoring Program (DJFMP) sampling. Need The goal of this study is to examine the utility of fish body condition as a measure for DJFMP to evaluate underlying factors driving fish health and survival in the Sacramento and San Joaquin River-Delta system. This will provide a more complete assessment of how condition metrics vary for common fish species that are sensitive to differences in environmental conditions, filling a fundamental data gap in our existing monitoring program. Objectives • Establish a pilot sampling design and methods for collection of data from fish sampled through DJFMP. • Assess the utility and expand the use of body condition to include up to 7 species of commonly sampled fishes. • Develop protocols for incorporating new methods into DJFMP sampling.