Tag Archives: Alsek River

Alsek Sockeye Run Reconstruction

Weir counts have been made on the Klukshu River, part of the Alsek River system, by the Department of Fisheries and Oceans (DFO) in co-operation with the Champagne-Aishihik First Nation, since 1976. A mark-and-recapture program ran from 2000 to 2004, and in 2005 and 2006, the Alsek sockeye population was estimated using tissue sample and catch information from the commercial sockeye fishery in Dry Bay as well as the weir counts. By recommendation by the Northern Fund Committee in 2008, a statistically valid sampling strategy that would provide the foundation for reconstructing sockeye and Chinook returns to the Alsek River was completed. Based on this model, it was proposed that funding be provided to analyze sockeye tissue samples collected in the commercial sockeye fishery in Dry Bay (up to 750 per season), to reconstruct the Alsek sockeye runs as described in Gazey’s analysis. The program has been running successfully each season since 2012.

N17-I16 Alsek Sockeye Run Reconstruction 2017

N16-I49 Alsek Sockeye Run Reconstruction Using GSI 2016

N15-I11 Alsek Sockeye Run Reconstruction 2015. Year 4

N14-I10 Alsek Sockeye Run Reconstruction 2014

N13-I12 Alsek Sockeye Run Reconstruction 2013

N12-I17 Alsek Sockeye Run Reconstruction, 2012

 

 

Alsek Chinook Run Reconstruction

Since 1976, weir counts have been made on the Klukshu River, part of the Alsek River system, by the Department of Fisheries and Oceans (DFO) in co-operation with the Champagne-Aishihik First Nation. In 2007, the weir counts at Klukshu, in conjunction with Chinook catches from the test fishery at Dry Bay, were used to estimate the Alsek Chinook population. The results were encouraging, and by recommendation by the Northern Fund Committee in 2008, a statistically valid sampling strategy that would provide the foundation for reconstructing the Chinook return to the Alsek River was completed. Based on this model, it was proposed that funding be provided to analyze Chinook tissue samples collected in the commercial sockeye fishery in Dry Bay (up to 500 per season), to reconstruct the Alsek Chinook runs as described in Gazey’s analysis. The project was carried out successfully in 2014, but there has not been enough fish in 2015 and 2016.

N14-I32 Alsek Chinook Run Reconstruction 2014