Adult entry

Allocated to tribsReturn to natal stream

or IGH — some strayingSpawners in trib

Females

FryFry

Fingerlings

Parr

Smolts

Ocean entry

Fingerlings(Scott & Shasta

only)

Parr

SmoltsAge 0 smolts(Shasta only) SmoltsIGH release

Pinniped predation

In river harvest

(TPre-spawn survival

oDep.)(Cohort specific)

% females

Fingerlings

Densityindependent

survival

Density independentsurvivalSize scalar (Reach 1 only)

Movementmortality

Exodus if K available

Refuge streams only

Smolt-to-adult survival

Post-release mortality

DistanceDisease

TemperatureFlow (Q)

Migration survival

Ocean harvest

Fry-to-fingerlingsurvival

Density dependentsurvival

Reach 1:

Flow & temperaturedependent

Reach 2-6:Refuge dependent

Simulate growth6/1-10/30(Reach 1)

Adult return

Mainstem Klamath Tributary Reaches

Age 3 adults

0 .0

0 .1

0 .2

0 .3

0 .4

0 .5

0 .6

0 .7

0 .8

0 .9

1 .0

1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 9 2 0 2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 2 9 3 0

M e an we e k ly te mpe rature (oC)

Pre

-sp

awn

Su

rviv

al S

cala

r

0.00.10.20.30.40.50.60.70.80.91.0

12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28

Temperature (oC)

Cap

acity

Sca

lar

Mainstem Flow (cfs)

500 1000 1500 2000 2500 3000 3500 4000

Cap

acity

Sca

lar

0.9

1.0

1.1

1.2

1.3

1.4

1.5

0.00

0.20

0.40

0.60

0.80

1.00

1.20

1.40

5 10 15 20 25 30

Temperature (oC)

Su

rviv

al S

cala

r

Klamath R. average temperature (C)

5 10 15 20 25 30

Sur

viva

l sca

lar

0.0

0.2

0.4

0.6

0.8

1.0

1.2

Klamath R. streamflow (kcfs)

0 2 4 6 8 10 12

Sur

viva

l sca

lar

0.0

0.2

0.4

0.6

0.8

1.0

1.2

IGD to Portuguese Cr.Portuguese Cr. to Trinity R.Trinity R. to Estuary

0.70

0.80

0.90

1.00

1.10

0 100 200 300 400

Migration distance (km)

Su

rviv

al

sc

ala

r

Model Reaches