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Abundance of Susitna River Chinook and Coho Salmon, 2013 - 2015
Pete Cleary Alaska Department of Fish and Game
Division of Sport Fish Palmer
Oral Report RC 4 TAB 11
Primary Objectives
Estimate distribution of Chinook and coho – 2013 - 2015 (Susitna River)
2013 - 2014 (Yentna River)
Estimate abundance of Chinook and coho – 2013 - 2015
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Mainstem Susitna River Yentna River
Study Area
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Methods
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Chinook Salmon Abundance Tag deployment and recovery sites 2013
Susitna RM 34 Yentna RM 6
Montana Creek weir
Talachulitna R sonar
Middle Fork Chulitna River sonar
Deshka River weir
Tag deployment and recovery sites 2013
Tagging Recap
5
Chinook Salmon Abundance Tag deployment and recovery sites 2013
Susitna RM 34 Yentna RM 6
Montana Creek weir
Yentna RM 18 Deshka River weir
Tag deployment and recovery sites 2014
Tagging Recap
Middle Fork Chulitna River sonar
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Chinook Salmon Abundance Tag deployment and recovery sites 2013
Susitna RM 34 Yentna RM 6
Montana Creek weir
Tag deployment and recovery sites 2015
Susitna RM 80
Deshka River weir Yentna RM 18
Tagging Recap
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Susitna River fish wheel
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Drift gill netting
Montana Creek Weir
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Montana Creek weir and PIT tag array
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Results
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Mainstem Susitna River
Mainstem Susitna Chinook Abundance
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89,46368,225
88,580
0
50,000
100,000
150,000
2013 2014 2015
Abun
danc
e Es
timat
e
Year
Mainstem Susitna Chinook
Yentna Chinook Abundance
14
22,26748,416
0
50,000
100,000
2014 2015
Abun
danc
e Es
timat
e
Year
Yentna Chinook
Yentna River
Total Chinook Abundance
15
Mainstem Susitna River
90,492136,996
0
50,000
100,000
150,000
200,000
2014 2015
Abun
danc
e Es
timat
e
Year
Total Chinook
8%
Average Chinook Abundance Susitna River 2013 – 2015
24%
21%
24%
4%
19%
RM 102.4 – 153.4 Unit 3
Talkeetna River Unit 5 Deshka River
Unit 1
Chulitna River Unit 6
Eastside Susitna Unit 2
RM 34 – 102.4 Unit 1 Average N = 82,089
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22%
16%
17%
23%
23%
Lake Creek
Kahiltna River
Yentna River
Skwentna River Talachulitna River
N = 35,342
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Unit 4
Average Chinook Abundance Yentna River 2013 – 2015
Yentna River
Coho Salmon Abundance
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Mainstem Susitna River
Mainstem Susitna Coho Abundance
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130,02684,879
152,500
0
50,000
100,000
150,000
200,000
250,000
2013 2014 2015
Abun
danc
e Es
timat
e
Year
Mainstem Susitna Coho
Yentna Coho Abundance
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73,819110,321
0
50,000
100,000
150,000
200,000
2013 2014 2015
Abun
danc
e Es
timat
e
Year
Yentna Coho
Yentna River
Total Coho Abundance
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Mainstem Susitna River
Total Coho Abundance
22
130,026
84,879
152,500
64,530
29,725
41,608
0
50,000
100,000
150,000
200,000
250,000
2013 2014 2015Year
Marine harvest
Abundance Estimate
194,556
114,604
194,108
0
50,000
100,000
150,000
200,000
250,000
2013 2014 2015
Abun
danc
e
Year
Mainstem Susitna Coho total Run Estimate
Coho Salmon Harvest Rates
2013 • Sport – 8% • Commercial – 33% • Total – 41%
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Mainstem Susitna River
Coho Salmon Harvest Rates
2014 • Sport – 12% • Commercial – 26% • Total – 38%
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Mainstem Susitna River
Coho Salmon Harvest Rates
2015 • Sport – 8% • Commercial – 20% • Total – 28%
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Mainstem Susitna River
Susitna River Chum and Coho 2010 – 2012 – ADF&G Chinook and Coho 2013 – 2014 – Alaska Energy Authority
Reports:
Chinook and Coho 2015 – ADF&G (draft) Chinook 2016 – ADF&G (pending)
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Field Season 2017 - Funding
Susitna Salmon Research and Enhancement Initiative SSREI (CIP)
Pacific States Marine Fisheries Commission -(Grant)
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Acknowledgements
Alaska Energy Authority
Alaska Sustainable Salmon Fund/ Pacific Coastal Salmon Recovery Fund
Susitna Salmon Research and Enhancement Initiative
Dingell-Johnson Program, Alaska Department of Fish and Game, Division of Sport Fish
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