noaa marine fisheries and research
TRANSCRIPT
NOAA Marine Fisheries and Research
Jim Murphy, Alaska Fisheries Science Center
Fall 2017 Yukon River Joint Technical Committee
Fairbanks, AK
Alaska Fisheries Science Center
Auke Bay Laboratories
Oct 31- Nov 3, 2017
Salmon Bycatch and
Bycatch Management
in BSAI and GOA
Groundfish Fisheries
Sources:
Chinook Salmon Bycatch in the Bering Sea-Aleutian Islands
(BSAI) and Gulf of Alaska (GOA) Groundfish Fisheries (through Oct 19, 2017)
0
20
40
60
80
100
120
140
160
180
92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17
Bycatc
h (
1,0
00's
of
fish
)
Year
GOA
BSAI
https://alaskafisheries.noaa.gov/sites/default/files/reports/chinook_salmon_mortality2017.pdf
https://alaskafisheries.noaa.gov/sites/default/files/reports/goasalmonmort2017.pdf
Chinook Salmon Bycatch ManagementMagnuson-Stevens Fishery Conservation and Management Act
Amendments 91, 93, and 110
•Amendment 91 (2011): Bering Sea Aleutian Islands (BSAI)
Enables the use of approved incentive plan agreements (IPAs) by the fishing industry
for bycatch avoidance and implements IPAs through a two cap policy (60,000 hard cap,
47,591 performance cap).
•Amendment 93 (2012 and 2013): Gulf of Alaska (GOA)
Annual bycatch limit of 25,00 Chinook salmon set for pollock directed trawl fisheries in
the GOA in 2012. Annual bycatch limit of 7,500 set for all other GOA groundfish trawl
fisheries in 2013.
•Amendment 110 (2016) (BSAI) Salmon Bycatch Plan
Integrated Chum and Chinook Salmon bycatch avoidance plans are implemented.
Seasonal allocation of pollock quota are adjusted and abundance-based Chinook
salmon bycatch caps are implemented. Chinook salmon bycatch caps are reduced in
years of low abundance (three system index ≤250,000). The three system index is the
total run size of the Unalakleet, Upper Yukon, and Kuskokwim River stock groups.
Chinook Salmon Bycatch Management2017 In-Season BSAI Incentive Plan Agreements (IPA)
IPA Allocation Bycatch* % Taken
Inshore 33,390 15,169 45%
Catcher Processor 17,040 10,375 61%
Mothership 4,674 2,006 43%
CDQ 4,896 2,503 51%
Total 60,000 30,053 50%
*Through 14-Oct-17
https://alaskafisheries.noaa.gov/sites/default/files/reports/car180_bs_with_cdq2017.pdf
BSAI Chinook Salmon bycatch stock composition
U.S. Department of Commerce | National Oceanic and Atmospheric Administration | NOAA Fisheries | Page 6
Source: Guthrie, C. M. III, Nguyen, Hv.T., A. E. Thomson, K. Hauch, and J. R. Guyon. In prep. Genetic stock composition analysis of the Chinook
Salmon (Oncorhynchus tshawytscha) bycatch from the 2016 Bering Sea walleye pollock (Gadus chalcogrammus) trawl fishery. U.S. Dep. Commer.,
NOAA Tech. Memo. NMFS-AFSC-xxx.
Sources: https://alaskafisheries.noaa.gov/sites/default/files/reports/chum_salmon_mortality2017.pdf
https://alaskafisheries.noaa.gov/sites/default/files/reports/car120_psc_goa2017.pdf
Non-Chinook Salmon Bycatch in the Bering Sea-Aleutian Islands
(BSAI) and Gulf of Alaska (GOA) Groundfish Fisheries (through Oct 19, 2017)
0
100
200
300
400
500
600
700
800
92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17
Bycatc
h (
1,0
00's
of
fish
)
Year
GOA
BSAI
BSAI chum salmon bycatch stock mixtures
Source: Kondzela et al. 2017. http://www.afsc.noaa.gov/Publications/AFSC-TM/NOAA-TM-AFSC-345.pdf
2017 Yukon River Salmon Marine Research Overview
Run Timing Forecasts
(NOAA: 2012-present)
Yukon River Delta Research
(YDFDA: 2017)
Chinook Salmon PSAT (Bering Sea)
(PCCRC: 2017-2018)
Ecosystem Model of Chinook
Salmon Growth and Survival
(NPRB: 2015-2017)
Northern Bering Sea Trawl Surveys
Chinook Initiative Research
(ADFG: 2014-2017)
2017 Northern Bering Survey
(AKSSF: 2016-2018)
Operational Prospect and Forecast for
Timing of Chinook Salmon on the
Yukon River Delta
2017 Results
• Alaska Fisheries Science Center
Phillip R. Mundy1 , Bryce Mecum5 , Will Koeppen2
Holly Carroll3, Holly Kent4, Fred West3, Brian Stone2
Sean Larson3, Deena Jallen3
1 NOAA-Fisheries, Alaska Fisheries Science Center, Auke Bay Laboratories, Juneau, AK, 99801, USA.
E-mail: [email protected] Axiom Consulting & Design, 523 W 8th Avenue, Suite 106, Anchorage, AK 99501, USA3 Alaska Department of Fish and Game, Division of Commercial Fisheries, 333 Raspberry Road
Anchorage, AK 99518, USA4 Alaska Ocean Observing System, 1007 W Third Avenue, Suite 100, Anchorage, AK 99501, USA5 National Center for Ecological Analysis and Synthesis, 735 State Street, Suite 300, Santa Barbara, CA 93101, USA
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2017 Prospect and Forecast Highlights
1. Preliminary prospect for early run posted on AOOS web site on May 11
a. Qualitative prospect issued for earlier than average run
b. Warmer than average Nome April mean air temps
c. Qualitative prospect for first “pulse” near end first week June
2. Final prospect and forecast issued June 1
a. Qualitative prospect “early to almost average”
b. Quantitative forecast first “pulse” (15%) June 10 (actual June 11)
c. Quantitative forecast mid-point (50%) June 19 (actual June 20)
3. Warm April air temps & low spring ice concentrations were moderated by
near average May sea surface temps and below average spring sea ice,
making the first pulse of the 2017 run three days earlier than average
and the mid-point just one day earlier than average.
12
Fit of 2017 test fish data to timing model on Jul 14 2016
Timing model web-posted as shown 1 Jun, 2017
13*2012 is latest migration in recorded history, 1961 - 2017
Observed and forecast dates of 15% and 50% point Yukon chinook run 2012 - 2017
Juvenile Chinook salmon (Oncorhynchus tshawytscha) early
ecology, prey, and condition on the Yukon River Delta, AK YDFDA 2017
K. Miller, R. Alstrom, A. Sreenivasan
1) Evaluate spatial and temporal differences in
juvenile Chinook salmon condition, size and
energy content.
2) Evaluate smoltification (gill Na+/K+-ATPase
activity) with respect to size of juvenile Chinook
to assess outmigration or downstream
movement
3) Evaluate factors potentially affecting
outmigration timing and fish condition including
river processes (e.g. discharge), environmental
conditions (e.g. temperature), and biotic
conditions (e.g. prey availability and type)
4) Complete juvenile Chinook prey composition
and energy content study funded by AYKSSI
#1511
Further Examination of Movement, Behavior and Predation
of Chinook Salmon in the Bering Sea Pollock Conservation Cooperative Research Center (2017-2018)
A. Seitz and M. Courtney
(1) Investigate marine ecology of Chinook salmon in Bering Sea
(2) Use Pop-up Satellite Archival Tags
(3) Currently deploying tags in Dutch Harbor
(4) 4 of 20 tags deployed
Utilization distributions derived from daily geoposition estimates
Defining Critical Periods for Yukon River Chinook SalmonNPRB, project #1423 (2015-2017)
(1) Extend integrated ecosystem model
into the northern Bering Sea.
(2) Develop annual indices (1970-2012)
of size-selective mortality during first
summer at sea (model and actual).
(3) Identify key processes/mechanisms
that affect growth rate of Yukon River
Chinook salmon during critical
periods.
(4) Test key processes/mechanisms in
forecast models.
E. Farley, E. Yasumiishi, K. Aydin, K. Kearney, A. Herman, and K. Howard
Northern Bering Sea Surface
Trawl Surveys
Chinook Salmon Research InitiativeJuvenile Chinook Salmon Abundance Index Calibration (2014-2017)
(1) Fishing power models between R/V
Pandalus (ADFG) and NOAA
chartered fishing vessel (F/V Alaskan
Endeavor)
(2) Stock-specific abundance estimates
of juvenile Chinook salmon in
northern Bering Sea
(3) Adult Chinook salmon return
projections to the Yukon River.
K. Howard, J. Murphy, and S. Garcia
Alaska Dept. of Fish and GameAlaska Dept. of Fish and Game
Juvenile Chinook Abundance Estimates based on large and small
vessel survey designs in the Northern Bering Sea(Chinook Salmon Research Initiative)
0
1,000
2,000
3,000
4,000
5,000
6,000
2014 2015 2016
Juven
ile
Chin
ook A
bundan
ce (
000's
)
Year
Small Vessel
Large Vessel
Stock Composition of juvenile Chinook salmon from large and small vessel
survey designs in the Northern Bering Sea(Chinook Salmon Research Initiative)
6%
33%
61%
9%
38%54%
20%
20%60%
15%
34%51%
28%
24%
49%
21%
28%51%
22%
21%58%
11%
25%
64%
2014
2015
2016
Marine Entry August September
Canadian Yukon
Lower Yukon
Middle Yukon
Stock Composition of Yukon River juvenile Chinook salmon in the Northern Bering Sea
(Chinook Salmon Research Initiative)
Early Marine Growth of Juvenile Salmon in the Northern Bering Sea (2014-2016)(Chinook Salmon Research Initiative)
Growth-adjusted (1 mm/day) length frequency distributions of juvenile Chinook
from large and small vessel surveys in the northern Bering Sea(Chinook Salmon Research Initiative)
2017 Northern Bering Sea Juvenile Chinook Salmon SurveyAKSSF project 44211 (2016-2018)
K. Howard, and J. Murphy
(1) Estimate juvenile Chinook salmon abundance in the NBS (2017)
(2) Estimate Chinook salmon stock mixtures in the NBS, and incorporate stock structure information into juvenile abundance indices
(3) Incorporate stock-specific abundance of Canadian-origin Yukon River Chinook salmon into an established run forecast model.
(4) Assess nutritional status of juvenile Chinook salmon in the NBS through diet and energetic analyses
U.S. Department of Commerce | National Oceanic and Atmospheric Administration | NOAA Fisheries | Page 25
2017 Northern Bering Sea Juvenile Chinook Salmon Distribution
Canadian-origin juvenile Chinook salmon abundance (2003-2017)
U.S. Department of Commerce | National Oceanic and Atmospheric Administration | NOAA Fisheries | Page 26
Canadian-origin juveniles-per-spawner and spawner abundance (2003-2017)
U.S. Department of Commerce | National Oceanic and Atmospheric Administration | NOAA Fisheries | Page 27
