Salmonid Restoration Federation
Adaptation in Motion
April 21 - 23, 2021
Virtual, California

The Influence of Food Webs on Salmonid Growth and Performance: A Forgotten Link to Species Resilience

22 April 2021
1:30pm - 5:00pm
Session Coordinator: 

Robert Lusardi, Center for Watershed Sciences, UC Davis

Efforts to conserve at-risk populations of anadromous Pacific salmon (Oncorhynchus spp.) often focus on the restoration of physical habitat features (e.g., water temperature, pool frequency and depth, large wood abundance, etc.) associated with enhanced juvenile production in freshwater.  However, there is growing recognition that restoration and protection of suitable habitat must consider interactions between physical habitat features, ecosystem productivity, and fish performance.  Recently, numerous scientists have called for a broader understanding of how prey availability and food webs affect the growth, persistence, and survivorship of juvenile salmonids. We seek abstracts that examine the effects of food webs and aquatic habitat productivity on the growth of juvenile salmonids particularly in productive ecosystems or where food webs strongly interact with physical habitat attributes to influence growth.

Food Webs and Juvenile Steelhead Behavior in Coastal California – Towards a Foodscape Perspective
Gabriel Rossi, UC Berkeley
 
Abundant Prey Availability Improves Juvenile Coho Growth Under Warming Stream Temperatures
Robert Lusardi, UC Davis and California Trout
 
Water Residence Time Drives Aquatic Ecosystem Productivity on a Managed Floodplain
Jacob Montgomery, California Trout
 
Eye Lenses as an Archival Tool to Determine Off-channel Habitat Use During Juvenile Out-migration in Adult Winter-run Chinook
Carson Jeffres, UC Davis
 
Summer Foraging Behaviour in Juvenile Coho Salmon and Steelhead Trout Across a Heterogeneous Landscape
Rachael Ryan, UC Berkeley
 
Making Sense of Making Salmon: Recipes for Routing Landscape Carbon into Fisheries Biomass
Jacob Katz, Lead Scientist, California Trout