upper columbia white sturgeon recovery
DESCRIPTION
Upper Columbia White Sturgeon Recovery. Lake Roosevelt Sturgeon Recovery (LRSRP) BPA Project No. 1995-027-00 White Sturgeon Enhancement (WSEP) BPA Project No. 2008-116-00. Jason McLellan (CCT), Deanne Pavlik-Kunkel (STOI), and Matt Howell (WDFW). - PowerPoint PPT PresentationTRANSCRIPT
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Lake Roosevelt Sturgeon Recovery (LRSRP)BPA Project No. 1995-027-00
White Sturgeon Enhancement (WSEP)BPA Project No. 2008-116-00
Upper Columbia White Sturgeon Recovery
Jason McLellan (CCT), Deanne Pavlik-Kunkel (STOI), and Matt Howell (WDFW)
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Upper Columbia White Sturgeon
Recovery Initiative
• Established in 2000
• Recovery Plan in 2002
• Goal: “…ensure the persistence and viability of naturally-reproducing populations…” and “restore opportunities for beneficial use if feasible.”
• LRSRP (1995-027-00)• implement RP in the US
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Lake Roosevelt Sturgeon Recovery Project
Population assessment
Setline Surveys
Acoustic telemetry
Fall Gill Netting(Natural
recruitment monitoring)
Recruitment failure research
ELH studies
Predation
Food availability
Conservation aquaculture
Preserve genetics
Rebuild demographics
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Population Assessment (wild fish)
Columbia River kilometer1000 1050 1100 1150 1200 1250
ID c
odes
det
ecte
d (n
=78;
104
-256
cm
FL;
mea
n =
190)
0
10
20
30
40
0
10
20
30
40
0
10
20
30
40
0
10
20
30
40
Chalk Grade
2004
2005
2006
2007
HLK Dam
US-Canada Border
Marcus IslandHunters
Columbia-Spokaneconfluence
Setlining Acoustic telemetry
(GRTS)
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Population assessment (wild fish)
0 50 100 150 200 250 3000
2
4
6
8
10
12
14
Fork Length (cm)0 50 100 150 200 250 300
0
2
4
6
8
10
12
140 50 100 150 200 250 300
Freq
uenc
y (%
)
0
2
4
6
8
10
12
14
median = 181.5 cm FL for adult cohort (>150 cm FL)
median = 185.0 cm FL for adult cohort (>150 cm FL)
median = 202.0 cm FL for adult cohort (>150 cm FL)
1998 (Aug/Sep; n=200)
2004/2005 (Apr/May; n=303)
2009 (Aug/Sep; n=85)
1997 year class
40 60 80 100 120 140 160 1800
5
10
15
20
25
40 60 80 100 120 140 160 180
Freq
uenc
y (%
)
0
5
10
15
20
25
Relative Weight (%)40 60 80 100 120 140 160 180
0
5
10
15
20
25
1998 (Aug/Sep; n=172)
2004/2005(Apr/May; n=242)
2009(Aug/Sep; n=75)
median = 87.9
median = 98.2
median = 93.8
“Adult” (FL>150 cm) conditionSetline catch composition
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Population assessment (wild fish)
Reach Origin N 95% CI S 95% CI
WA1 Wild (>70 cm FL) 2,037 1,093-3,293 - -
BC2 (>34 cm FL) 1,151 414-1900 0.97 0.92-0.99
WA & BC3 Hatchery (6 mo. post rel.) - - 0.28 0.11-0.54
WA & BC3 Hatchery (2-5 yr post rel.) - - 0.88 0.35-0.99
1 Howell and McLellan (2007); 2 Irvine et al. (2007) ; 3 Golder (2007)
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Conservation Aquaculture-Implementation and Adaptation-
• LRSRP program • BY 2003-2005
• Canada broodstock• BY 2006-2010
• Northport broodstock• BY 2010-2011
• Larval collection
• UCWSRI aquaculture review• Factorial mating • Canada releases reduced• Effective as of 2008 BY
Brood Year2001 2002 2003 2004 2005 2006 2007 2008 2009 2010
Num
ber
rele
ased
0
5000
10000
15000
20000
25000BC (DGT; yearlings) BC (DGT;sub-yearlings) WA (DGT; yearlings) WA (WLC; subyearlings)
(WA sub-yearling releases from BY 2011 larvae = 3,590)
Reach Origin N 95% CI S 95% CI
WA1 Wild (>70 cm FL) 2,037 1,093-3,293 - -
BC2 (>34 cm FL) 1,151 414-1900 0.97 0.92-0.99
WA & BC3 Hatchery (6 mo. post rel.) - - 0.28 0.11-0.54
WA & BC3 Hatchery (2-5 yr post rel.) - - 0.88 0.35-0.99
1 Howell and McLellan (2007); 2 Irvine et al. (2007) ; 3 Golder (2007)
Total transboundary releases through 2010 = 118,412
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Conservation Aquaculture-Evaluation-
2007-2009 Summer Setline Surveys
Fall Gill Net SurveysJuveniles generally confined to river-reservoir transition zone
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0 50 100 150 200 250 300
Freq
uenc
y (n
)
0
10
20
30
40
50
60
hatcherywild
0 50 100 150 200 250 300
Wei
ght (
kg)
0
50
100
150
200
250
Fork Length (cm)0 50 100 150 200 250 300
Rel
ativ
e w
eigh
t (%
)
40
60
80
100
120
140
160
2009 Setline Survey Data
Conservation Aquaculture -Evaluation-
FL at initial capture or at release (cm)0 50 100 150 200 250
Mea
n an
nual
gro
wth
in F
L(c
m)
0
5
10
15
20
25
30
Juvenile/unknown genderFemalesMalesAGR = 16.816 * e-0.010FL; R2 = 0.555
Age (years)0 10 20 30 40 50
Fork
Len
gth
(cm
)
0
50
100
150
200
250
LCR (DeVore et al. 1995) BON (Beamesderfer et al. 1995)TDA (Beamesderfer et al. 1995)JND (Beamesderfer et al. (1995)Roosevelt Reach (DeVore et al. 2000)Roosevelt Reach (LRWSRP mark-recapture)Keenleyside Reach (RL&L 1996)
MARK RECAPTURE VBG (FABENS 1965)
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Conservation Aquaculture-Evaluation-
• 100 broodstock spawned• 95 genotyped
• ~87% alleles represented
• Rare alleles in broodstock not in population sample
• Greater population diversity?
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Early Life History-Spawning-
• Northport area• Inferred from telemetry of pre-
spawn adults (2004-2005)• Documented with egg mat gear
(2005-2008)
• Protracted spawning period• mid-late June through (at least)
July
• Commences when temp ~13-14 C at border
• Not associated with dam tailrace
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Early Life History -Post hatch-
Jun Jul Aug
Post
-hat
ch c
atch
(n)
0
50
100
150
200
Dis
char
ge (C
FS)
5.0e+4
1.0e+5
1.5e+5
2.0e+5
2.5e+5
Wat
er te
mpe
ratu
re (
o C)
10
12
14
16
18
20
22
Water temperature at borderDocumented spawning period (egg mats)
DateJun Jul Aug
0
50
100
150
200
5.0e+4
1.0e+5
1.5e+5
2.0e+5
2.5e+5
10
12
14
16
18
20
22
Jun Jul Aug 0
50
100
150
200
5.0e+4
1.0e+5
1.5e+5
2.0e+5
2.5e+5
10
12
14
16
18
20
22
Post-hatch catchRiver discharge at border
2008
2007
2006
D-ring frame
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Early Life History -post hatch-
36 37 38 39 40 41 42 43 44 45 EFE LFE UNK0.0
0.1
0.2
0.3
0.4
0.5
0.6
2006; n=446
36 37 38 39 40 41 42 43 44 45 EFE LFE UNKProp
ortio
n of
cat
ch
0.0
0.1
0.2
0.3
0.4
0.5
0.6
2007; n=752
Developmental stage36 37 38 39 40 41 42 43 44 45 EFE LFE UNK
0.0
0.1
0.2
0.3
0.4
0.5
0.6
2008; n=648
Total length (mm)8 10 12 14 16 18 20 22 24
Blo
tted
wei
ght (
mg;
n=6
37)
10
20
30
40
50
60
70
80
Yolk presentYolk exhaustedPrey present
8 10 12 14 16 18 20 22 24
Freq
uenc
y (n
and
%)
0
20
40
60
80
100 Frequency (n=661)% fish that had exhausted yolk supply
D-ring catch composition
(prey principally chironomid pupae/larvae)
2008 D-ring data
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Early Life History -post hatch-
Sampling locality
Mea
n C
PUE
(SD
) (ca
tch
per
1,00
0 m3
)an
d w
ater
vel
ocity
(ms-1
)
0.0
0.5
1.0
1.5
2.0CPUEWater velocity
6055
5729
• D-ring (late June-July)• Larval abundance declines
downstream• Trawling (July-August)
• No larvae in upper reservoir• Fall gill nets (October)
• No age-0 subyearlings• Survival bottleneck
• Between larval and age-0 juvenile stages (July-October)
• Upper transition zone• Predation? Contaminants? Prey
base?
2008 D-ring
Riverine Upper transition zone
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• Predator sampling• Electro-fishing• July-August 2005• 520 gut samples, 13
species• No sturgeon in diets
• Macro-invertebrate sampling• Various gears• July 2007-2010
Recruitment Failure Mechanisms
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Recruitment Failure Mechanisms-Larval Transport-
Sampling period
CPU
E (c
atch
per
hou
r)
0
20
40
60
80
100
23 38 37 32 14
8pm-10pm10pm-12am
12am-2am2am-4am
4am-5am5am-7am
11
2011 D-ring (night sampling)
DateJun Jul Aug Sep
Post
hat
ch c
atch
(n)
0
20
40
60
80
100
120
140
Dis
char
ge a
t US-
Can
ada
Bor
der
(CFS
)
5.0e+4
1.0e+5
1.5e+5
2.0e+5
2.5e+5
Post-hatch catch Discharge
Jun Jul Aug Sep 5.0e+4
1.0e+5
1.5e+5
2.0e+5
2.5e+5
3.0e+5
3.5e+5
1938-1969 mean (pre-dam/RF)1985-2010 mean (post-dam/RF)1997
2008 D-ring sampling
Power peaking
Sampling Period
Mea
n (S
E) C
PUE
(pos
t-ha
tch
catc
h pe
r 10
00 m
3 )
0.0
0.2
0.4
0.6
0.8
74
128
Daytime Overnight
2008 D-ringsampling
Catch drops off at sunrise
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LRSRP and WSEP
Core Program
Population Monitoring
Setline
Fall Gill Net
Telemetry
Aquaculture
Data Management
Habitat Assessment
MBES
ADCP
WQM
Recruitment Failure
Proximate mechanisms
Predation
Food
Contaminants
Larval transport
Flow/Habitat modeling
Empirical testing
Mass Marking
Larval releases2013-2017
WA Co-Managers Operations Plan Outline
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Project Specific Components
LRSRP 1995-027-00
• Core Program• Stock Assessment• Sub-yearling gill net• Aquaculture• Telemetry
• Recruitment Failure• Predator assessment• Food availability• Chemical mass marking
WSEP 2008-116-00
• Core Program• Data Management
• Habitat Assessments• Recruitment Failure• Flow/habitat modeling• Contaminant assessments• Larval release experiment
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Larval transport hypothesis
Hydro-ops
“Net and Jet”
ProximateMechanisms
Predation
Predator control
Turbidity
Food availability
Increase productivity(fertilization)
Contaminants
CERCLAprocess
Behavioral and sensory impacts
Management Implications/Alternatives
Behavioral and sensory impactsDecreased prey densities
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Questions?