Unalakleet River Chinook Salmon Escapement Monitoring and Assessment, 2015 PDF Download

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Unalakleet River Chinook Salmon Escapement Monitoring and Assessment, 2015

Unalakleet River Chinook Salmon Escapement Monitoring and Assessment, 2015 PDF Author: Scott Kent
Publisher:
ISBN:
Category : Chinook salmon
Languages : en
Pages : 15

Book Description
Declining run sizes and ensuing state and federal restrictions and closures to Unalakleet River Chinook salmon Oncorhynchus tshawytscha fisheries highlighted the need to obtain more complete estimates of spawning escapement. In response, multiple agencies and entities began the Unalakleet River weir in 2010 funded by United States Fish and Wildlife Service's Office of Subsistence Management. The goal was to obtain estimates of the mainstem Chinook salmon escapement and age, sex, and length composition. An estimated 2,789 Chinook salmon were enumerated during the 2015 season. The central 50% of the Chinook salmon run was enumerated 7 July to 15 July in 2015. Interpolation was not needed in 2015 because there were only minor breaches that were repaired quickly. Female Chinook salmon comprised 37% of the fish sampled for age, sex, and length data and age composition of the samples was 40% age-1.3 and 35% age-1.4 Chinook salmon.
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