Landels-Hill Big Creek Reserve

11 Mar, 11 AM - 13 Mar, 11 AM

This study will investigate factors that drive steelhead life history variability by assessing the environmental and genetic influences on the earliest life history choice faced by steelhead, the decision to go to sea as a smolt. I will be testing a size threshold hypothesis by looking at the size and age of true physiological smolts. Data will be collected among differing habitats and populations in order to better understand the relative importance of genetic and environmental cues in this decision. Brief version of methods: Smolts to be caught feb-aug at the base of watersheds. Scales, DNA samples, length, weight and gill samples will be collected. Growth will be measured by tag and recapture year round beginning in Oct 2004 3 growth sites will be established on each watershed that cover the predominant habitat types. Fish over 65mm will be Pit tagged. Fish smaller than 65mm will be elastomere tagged using 5mm bins using blue, green, yellow, red and orange colors.

Visit #6111 @Landels-Hill Big Creek Reserve

Approved

Under Project # 4671 | Research

Steelhead life history

graduate_student - University of California, Santa Cruz

Reservation Members(s)

Chad Hanson Mar 11 - 13, 2005 (3 days)
Group of 2 Research Assistant (non-student/faculty/postdoc) Mar 11 - 13, 2005 (3 days)

Reserve Resources(s) | Create Invoice

Gatehouse 3 Mar 11 - 13, 2005