Imprinting Salmon and Steelhead Trout for Homing, 1980

Appendix Tabla B2.--Stee1head marked in 1978 at Tucann
type of imprint, and treatment for

Test- bl C.W.T. Brand N
re
contro1- code

Test 111 WH-OR-YW-YW RA9 1

Test 112 WH-OR-YW-RD RA \0 1

Hatchery production W-YW-OR-PK LDt;.1- 2
control W-YW-PK-LB LDt>f- 3

Total 9

2.1 The hatchery production control release was inadv
12.1 A shortage of test fish precluded a special contr

this experiment.

sJ Adjusted for initial tag loss.

non Hatchery. Test number, mark used, number released,

various groups are indicated. ~I

Number cl Homing Treatment
e1easeF imprint

18,137 sequential Loaded into tanker for 1 h,
sequential then released in pond contain­
8,549 natural ing pure spring water for 48 h,
then trucked with spring water
22,555 to barge at Lyons Ferry grain
33,002 terminal, and then barged down­
river to below Bonneville Dam.
2,243
Loaded into tanker for 1 h,
then released into pond contain­
ing 20% spring and 80% river
water for 48 h, then trucked
with Tucannon River water to
barge at Lyons Ferry grain
terminal, and then barged down­
river to below Bonneville Dam.

Normal hatchery release into
Grande Ronde River

vertently omitted from Table 4, Slatick et a1. (1979).
rol release from the hatchery into the Tucannon River for

Appendix Table B3.--Ringo1d sports fishery catch estimates.:/

Number Number in Numher in
estimated % of
sample
catch .re1ease
Test grouE Brand Ta9 code :released f!ecover:l
Ringold 34 0.096
13/8/1 35,600 2 68 0.16
1977 Release 63/17/7 41,660 4
1978 Release

Methow RAL-2 OR-LG-YW 19,901 1 17 0.085
LA) (-1 OR-OR-XY 20,330
Control #1 RAL-4 OR-GN-OR 19,131 o\ 68 0.36
RAL-1 OR-YW-LG 19,979 85 0.(3
Control #,2 RAL-3 OR-OR-RD 17,637 4 34 0.19
!L'est fIb! 5
2
Test #2~j
Test #3~/

Wenatchee LA4-1 OR-YW-OR 24,119· 0 34 0.14
Control U LA4-2 OR-LG-OR 23,787 2
Control #2 OR-YW-GN 34 0.15
LA4-3 OR-BL-OR 21,957' 0 102 0.47
Control #3 RA2-1 RO-PK 22,&4:1:. 2 153 0.65
Test #1 RA2-2 RO-LB 21,694 6
Test #2 RA2-3 OR-YW-LB 23,551 9 17 0.078
Test #3
ROT YW-PK-PK 21,756 1
Other
Tucannon

a/ From Hisata et a1. 1979-1980.
~/ Trucked to Bonneville.
~/ Trucked to Richland then barged to Bonneville.
~/ Trucked to Ringold.

Appendix Tabl~ B4.--Complete returns to four sampling locations of 1- and 2-ocean age

steelhead from control and test releases of smolts from the Wells Hatchery which were
imprinted to the Winthrop NFH homing site and the Methow River in 1978. Recov~ies were
from June 1979 to 30 November 1980.

Experiment Homing Control Number Number adults ~/ Adult Test to
and site or juveniles returns
test recaptured (% of control
sampling released juveniles) ratio
location I-ocean 2-ocean Total
age age 1 & 2's

Bonneville Dam

Winthrop NFH Winthrop Control 20,330 4 15 0.025
Control 19,901 8 4 12 0.060
L. Methow Test 19,131 26 5 31 0.162
Test 19,979 14 7 21 0.105
River Methow R. Test 17,637 23 5 28 0.159 2.4:1
6.5:1
Truck to 0.030 4.2:1
0.065 6.4:1
Bonneville Winthrop 0.172
0.110 2.2:1
Barge to 0.091 5.7:1
3.7:1
Bonneville Winthrop 0.098 3.0:1
0.166
Truck to 0.465 1. 7:1
0.286 4.7:1
Ringold Winthrop 0.374 2.9:1
3.8:1
Indian fisheE! 0.187
0.276 1.5:1
Winthrop NFl! Winthrop Control 51 6 0.235 1.3:1
Control 11 2 13 0.110 0.6:1
L. Methow Test 29 4 33 0.454 2.4:1
Test 17 5 22 -
River Methow R. Test 14 2 16

Truck to

Bonneville Winthrop

Barge to

Bonneville Winthrop

Truck to

Ringold Winthrop

McNaE! Dam Winthrop Control 18 2 20'
iolinthrop NFH Methow R. Control 28 5 33
Winthrop Test 85 4 89
L. Methow Winthrop Test 52 5 57
River Winthrop Test 62 4 66
Truck to
Bonneville

Barge to
Bonneville

Truck to

Ringold

Priest RaEids Dam

Winthrop NFH Winthrop Control 33 5 38
Control 44 11 55
L. Methow Test 32 13 45
Test 14 8 22
River Methow R. Test 63 17 80

Truck to

Bonneville Winthrop

Barge to

Bonneville Winthrop

Truck to

Rinsold WinthroE

TOTAL 96,978 582 110 692

a/ Because of differences in sampling intensity (efficiency) at each trapping site, results
are not comparable between sites.

Appendix Table B5.--Complete returns to four sampling locations of 1- and 2-ocean age
steelhead from paired control and test releases of smolts from the Chelan Hatchery which

were imprinted to the Leavenworth NFH homing site in lQ78. The test juveniles were trans­
ported from the Leavenworth NFH by truck to a barge at Richland, Washington, and then

barged downstream to below Bonneville Dam. Recoveries were from June 1979 to 30 November 1980.

Experiment and Control Number Number adults ~I Observecl adult Test to
sampling returns (%
location or juveniles recaptured control
test released of juveniles) ratio
I-ocean 2-ocean Total
age age 1 & 2's

lo-DAY IMPRINTING Control 24,119 16 2 18 0.075 1.81:1
Bonneville Dam Test 22,841 27 4 31 0.136 5.76:1
Indian fishery 1.12:1
McNary Dam Control 46 1960 91 10 0,041 0.19:1
Test 48 6 54 0.236
Priest Rapids Dam 0.145 6.69:1
TOTAL Control 32 3 35 0.162 2.25:1
Test 27 10 37 2.03:1
2-DAY IMPRINTING 0.203 0.12:1
Bonneville Dam Control 47 2 49 0.039
Indian fishery Test 90 9 1.59:1
McNary Dam 0.029 3.50:1
Priest Rapids Dam Control 23.787 215 28 243 0.194 1.06:1
Test 21,694 0.19:1
TOTAL 52 7 0.080
4-HOUR IMPRINTING Control 45 1 481 38 4 42 0.180
Bonneville Dam Test 0.143
Indian fishery 17 2 19 0.290
McNary Dam Control 32 7 39
Priest Rapids Dam Test 0.240
31 3 34 0.028
TOTAL Control 52 11 63
GRAND TOTAL Test 0.032
47 10 57 0.051
Control 21,957 51 6
Test 23,551 0.059
227 40 267 0.208
Control 45 1 508 0.141
Test 137,949 61 7 0.149
12 0 12 0.203
Control 0.038
Test 12 1 13
45 4 49
Control
Test 26 5 31
29 6 35

47 2 49
72 9

184 21 205

626 89 715

~I Because of differences in sampling intensity (efficiency) at each trapping site, results
are not comparable between sites.