Five species of Pacific salmon (Oncorhynchus spp.) were radio-tagged and tracked in the mainstem Susitna River in 2012 as part of a multi-objective study to describe salmon migration behavior, identify salmon spawning locations, and evaluate techniques for future studies of salmon in turbid water. The study was conducted to support the licensing process for the proposed Susitna-Watana Hydroelectric Project. The study design allowed for comparisons to salmon distribution and habitat use in the 1980s, when similar studies were conducted for the Alaska Power Authority Hydroelectric Project. The 2012 study focused on the mainstem Susitna River due to possible effects both above and below the Project dam site where the river was separated into lower (river mile [RM] 0-98), middle (RM 98-184), and upper (upstream of RM-184) river segments.

Since 1994, a mark-recapture experiment has been used to estimate the annual system-wide chinook salmon escapement to the Nass River, British Columbia. This report describes and presents results from the 1997 experiment, which was designed to test some basic assumptions that heretofore had not been rigorously examined. The objectives of the study were to: determine if the fishwheels used to capture the salmon were size- and/or stock-selective, and if so, examine the implications of ignoring fishwheel selectivity when estimating escapement; estimate the abundance of chinook spawning in the Nass watershed in 1997; and recommend a cost-efficient, long-term study design to accurately estimate the annual, system-wide escapement of chinook to the Nass River. Results are presented and discussed with regard to catches, catch per unit effort, tagging, tag recovery and loss, spawning ground surveys, size selectivity, recoveries among tributaries of the Nass River, and factors affecting escapement estimates. Recommendations are made for the 1998 study.

Since 1994, a mark-recapture experiment has been used to estimate the annual system-wide chinook salmon escapement to the Nass River, British Columbia. This report describes and presents results from the 1997 experiment, which was designed to test some basic assumptions that heretofore had not been rigorously examined. The objectives of the study were to: determine if the fishwheels used to capture the salmon were size- and/or stock-selective, and if so, examine the implications of ignoring fishwheel selectivity when estimating escapement; estimate the abundance of chinook spawning in the Nass watershed in 1997; and recommend a cost-efficient, long-term study design to accurately estimate the annual, system-wide escapement of chinook to the Nass River. Results are presented and discussed with regard to catches, catch per unit effort, tagging, tag recovery and loss, spawning ground surveys, size selectivity, recoveries among tributaries of the Nass River, and factors affecting escapement estimates. Recommendations are made for the 1998 study.

Estimates of escapement were derived for the Kitsumkalum River for 1989-90 using live tagging and carcass recovery operations. This study is part of the chinook key stream program. Total escapement estimates are the summation of individual estimates generated by sex and river section.

This publication reports data from the monitoring of adult & juvenile coho salmon (Oncorhynchus kisutch) at Zolzap Creek, a small tributary of the Nass River, north-west British Columbia. Studies included trapping, physical observations, enumeration at counting fences, biosampling, and coded wire tagging & tag recoveries. Canadian & US commercial harvests were also examined using coded-wire tag recovery data. Results presented include migration timing, escapement, mean length & weight at age, harvest rates, and survival rates.