Commercial Drift Gillnet Fishery Season Summary Nicole Zeiser - - PowerPoint PPT Presentation

2019 Lynn Canal (District 15) Commercial Drift Gillnet Fishery Season Summary

Nicole Zeiser Haines Area Management Biologist Gillnet Task Force Meeting December 4, 2019 Sitka, Alaska

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Haines Management Area – Lynn Canal

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500,000 1,000,000 1,500,000 2,000,000 2,500,000 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019

Number of Fish

District 115 Historical Gillnet Salmon Harvest

$0 $2,000,000 $4,000,000 $6,000,000 $8,000,000 $10,000,000 $12,000,000 $14,000,000 $16,000,000 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019

Ex-vessel Value by Species

District 115 Historical Gillnet Salmon Ex-vessel Value

2019 District 15 Commercial Drift Gillnet Effort and Harvest

Days Open State Managed Fishery Boat Harbor THA* Stat Week 15A 15C Boats Boat Days Chinook Sockeye Coho Pink Chum 25 2 2 2 66 132 157 396 11 15 6,097 26 2 2 2 105 210 132 1,819 53 582 38,003 27 2 2 2 92 184 161 6,573 46 9,404 86,122 28 2 3 4 118 236 196 10,573 59 24,160 196,464 29 2 4 5 136 272 216 18,540 61 15,857 482,698 30 3 4 7 106 318 180 42,029 124 19,649 243,732 31 6.5 3 7 36 234 29 69,841 23 26,817 38,023 32 7 4 7 128 896 7 36,104 301 17,046 11,459 33 7 4 7 170 1,190 10 33,072 1,789 20,212 8,464 34 7 4 3 110 770 2 15,126 4,593 6,375 9,231 35 7 5 4 95 665 2 6,289 11,909 3,176 13,892 36 7 2 2 65 455 3 918 7,100 268 11,471 37 5 3 3 69 345 1 212 9,468 9 16,997 38 4 3 3 60 240 34 8,367 1 10,178 39 3 3 3 37 111 3 2,199 1,916 40 4 4 4 25 100 4 1,638 1,222 41 3 3 3 12 36 201 74 42

Season Closed

Fishery Total 73.5 55 68 242 11,544 1,096 241,533 47,723 143,571 1,176,043 2009-2018 Average* 51 45 223 9,114 1,137 131,461 41,435 223,931 1,149,248 2019 % Average 144% 122% 109% 127% 96% 184% 115% 64% 102% * Outside area of Boat Harbor THA. Inside waters of Boat Harbor open 7 days a week

Summer Management Fall Management

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2019 1,096 241,533 47,942 143,571 1,176,045 10-year Average 1,137 131,461 41,435 223,931 1,149,248 200,000 400,000 600,000 800,000 1,000,000 1,200,000 Chinook Sockeye Coho Pink Chum

2019 Gillnet Harvest and 10-year Average

Number of Fish

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2019 Fishing Time

1 2 3 4 5 6 7 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 Days Statistical Week

Section 15-A Days Open and Extensions

Extension Opening 10 year Avg 1 2 3 4 5 6 7 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 Days Statistical Week

Section 15-C Days Open and Extensions

1 2 3 4 5 6 7 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41

Days Statistical Week

2019 Boat Harbor THA (Outside Area)

Same days as the rest of 15-C

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2019 Fishing Effort

50 100 150 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41

Number of Permits Statistical Week

Section 15-A Effort

2019 10-yr avg 50 100 150 200 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41

Number of Permits Statistical Week

Section 15-C Effort

2019 10-yr avg 50 100 150 200 25 26 27 28 29 30 31 32 33 34 35

Number of Permits Statistical Week

Boat Harbor THA Effort

2019 10-yr average

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2019 Chinook Salmon Management Restrictions

District 115 Historical Chinook Salmon Harvest

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500 1,000 1,500 2,000 2,500 3,000

1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 Number of Chinook Salmon Harvested

Total District 115 Chinook Salmon Harvest

Chinook Historical Average

2019 Drift Gillnet Chinook Salmon Harvest

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10 20 30 40 50 60 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41

Number of Fish Harvested Statistical Week

Section 15-A Chinook Salmon Harvest

2019 10-yr Average 50 100 150 200 250 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41

Number of Fish Harvested Statistical Week

Section 15-C Chinook Salmon Harvest

2019 10-yr Average

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2019 District 115 Chinook Salmon Stock Composition

*Genetic sampling occurred during SWs 25-29 only *253 fish were collected and 194 successfully genotyped

GSI-estimated harvest by stock composition SW25-29*:

mean% harvest est.

DIPAC 85.0% 733 Chilkat 6.2% 53 Taku 2.9% 25 SSEAK 1.7% 15 Stikine 1.7% 15 Other 2.5% 22 TOTAL HARVEST SW25-29 862

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Historical Chilkat River Chinook Salmon Inriver Abundance

1,000 2,000 3,000 4,000 5,000 6,000 7,000 8,000 9,000 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019

Number of Large Chinook Salmon

Above goal Below goal Upper goal (1,850) Lower goal (3,600) Minimum goal

preliminary

2019 Chilkat River Large Chinook Salmon Total Run

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➢ 2019 Preseason total run forecast: 1,000 large fish ➢ Preliminary Inriver run estimate: 2,028 large fish ➢ Inriver run Goal: 1,850 – 3,600 large fish

District 115 Historical Sockeye Salmon Harvest

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50,000 100,000 150,000 200,000 250,000 300,000 350,000 400,000 450,000 500,000 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019

Number of Fish Harvested

Total District 15 Sockeye Salmon Harvest

Sockeye Historical Average

2019 Sockeye Salmon Harvest

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10,000 20,000 30,000 40,000 50,000 60,000 70,000

25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41

Number of Fish Harvested Statistical Week

Section 15-A Sockeye Salmon Harvest

2019 10-yr average

5,000 10,000 15,000 20,000 25,000 30,000 35,000

25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41

Number of Fish Harvested Statistical Week

Section 15-C Sockeye Salmon Harvest

2019 10-yr Average

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# of Fish 41,104 12,110 149,135 4,503 110,327 19,230 3706

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Weekly Sockeye Salmon Harvest and Stock Composition

20,000 40,000 60,000 80,000 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41

Number of Fish Harvest Statistical Week

D15 Weekly Sockeye Salmon Harvest

2019 10-yr Average

Sockeye Salmon Escapement

20,000 40,000 60,000 80,000 100,000 120,000 140,000 160,000 1976 1978 1980 1982 1984 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018 Number of Fish

Chilkoot Lake Sockeye Escapement

Escapement Lower Bound SEG Upper Bound SEG 50 100 150 200 250 300 1976 1978 1980 1982 1984 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018 Thousands of Fish Estimated Escapement Escapement Goal - Upper Bound Escapement Goal - Lower Bound

Chilkat Lake Sockeye Salmon Escapement 18

Historical Chum and Coho Salmon Harvest

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200,000 400,000 600,000 800,000 1,000,000 1,200,000 1,400,000 1,600,000 1,800,000

1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 Number of Chum Salmon Harvested

Total District 115 Chum Salmon Harvest

Chum Historical Average 20,000 40,000 60,000 80,000 100,000 120,000 140,000 160,000

1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019

Number of Coho Salmon Harvested

Total District 115 Coho Salmon Harvest

Coho 10-yr Average

2019 Chum Salmon Harvest

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20,000 40,000 60,000 80,000 100,000

25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41

Number of Fish Harvested Statistical Week

Section 15-A

2019 10-yr Average

50,000 100,000 150,000 200,000 250,000 300,000 350,000 400,000

25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41

Number of Fish Harvested Axis Title

Section 15-C

2019 10-yr Average 1,000 2,000 3,000 4,000 5,000 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41

Number of Fish Harvested Statistical Week

Section 15-A

2019 10-yr Average 2,000 4,000 6,000 8,000 10,000 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41

Number of Fish Harvested Statistical Week

Section 15-C

2019 10-yr Average

2019 Coho Salmon Harvest

Chilkat River Chum and Coho Escapement

50,000 100,000 150,000 200,000 250,000 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 Number of coho salmon

Chilkat River Coho Salmon Escapement

Upper goal Lower goal

Estimates from mark-recapture studies (hollow bars) and expanded from index counts (filled bars)

100,000 200,000 300,000 400,000 500,000 600,000 700,000 800,000

1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019

Chilkat River Chum Salmon Fish Wheel Counts

Upper bound Lower bound

ND

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2020 Chilkat River Large Chinook Salmon Total Run Forecast

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➢ Preliminary ADFG 2020 Chilkat River large Chinook salmon Forecast: 1,550 (below goal) ➢ Inriver Run Goal: 1,850 – 3,600 fish

2020 Chilkoot Lake Sockeye Salmon Expectations

• 5-year old fish account for 76% of run over the past 10 brood years.
• 2015 parent year escapement = 72,000 fish (within goal range of 38,000–86,000 and

major component of 2020 run).

• 2016 rearing fry population estimate = 1.3 million (40% above average)
• 2016 zooplankton biomass estimate = 180% above average

➢ 2020 projection = ~200,000 – 250,000 fish

2020 Chilkat Lake Sockeye Salmon Expectations

• 5-year old fish account for 60% of return and 6-year old fish account for 35% of return
• ver the past 10 brood years.
• 2014 escapement (parent year for 6-yr old fish) = ~70,000 fish, just met lower end of

escapement goal of 70,000–150,000 fish.

• 2015 escapement (parent year for 5-yr old fish) = 176,000 fish -exceeded esc. goal

(largest escapement since early 1990s, major component of 2020 run). ➢ 2020 projection = ~80,000 – 130,000 fish

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Questions?

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