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Run year

Fish originb 93- 94- 95- 96- 97- 98-
Statistica or creel area 94 95 96 97 98 99 Mean
Run size WSTS 945 875 1296 1014 862 1133 1021
HSTS 359 696 819 1529 994 739 856

Run composition (%) WSTS 72 56 61 40 46 61 56


HSTS 28 44 39 60 54 39 44

Catch composition (%) WSTS 59 67 70 59 62 65 64


HSTS 41 33 30 41 38 35 36

Number caught WSTS 37 172 161 168 239 250 171


HSTS 26 85 69 115 146 132 96

Percent of run caught WSTS 3.9 19.6 12.4 16.6 27.7 22.1 17.1


HSTS 7.2 12.2 8.4 7.5 14.7 17.9 11.3

Percent of run harvested HSTS 5.3 8.7 7.3 5.9 10.4 13.7 8.6

Composition of lower river WSTS 49 67 64 59 49 50 56
catch (%) HSTS 51 33 36 41 51 50 44

Composition of upper river WSTS 71 66 75 60 78 75 71


catch (%) HSTS 29 34 25 40 22 25 29

Location of WSTS catch (%) Lower Rr. 46 70 44 71 44 30 51


Upper Rr. 54 30 56 29 56 70 49

Location of HSTS catch (%) Lower Rr. 69 68 56 72 74 56 66

Upper Rr. 31 32 44 28 26 44 34

Percent of WSTS run caught Lower Rr. 1.8 13.7 5.4 11.9 12.2 6.6 8.6

Upper Rr. 2.1 5.9 7.0 4.7 15.5 15.4 8.4

Percent of HSTS run caught Lower Rr. 5.0 8.3 4.7 5.4 10.9 10.0 7.4


Upper Rr. 2.2 3.9 3.7 2.1 3.8 7.8 3.9

Percent of HSTS run harvested Lower Rr. 3.9 5.7 4.2 4.3 9.2 7.3 5.8


Upper Rr. 1.4 3.0 3.1 1.6 1.2 6.4 2.8

a Hatchery steelhead run = number counted at Three Mile Falls Dam plus harvest below Three Mile Falls Dam; Wild steelhead run = number counted at Three Mile Falls Dam.

b WSTS = wild steelhead; HSTS = hatchery steelhead; Lower Rr. = lower river creel area; Upper Rr. = upper river creel area.
Table 4. Summary of Estimated Tribal of Summer Steelhead from 1993 through 1988.


Year


Summer Steelhead

Caught by Tribal Anglers

1993-94

1994-95


1995-96

1996-97


1997-98

30 (5)*

25 (5)


25 (5)

39

33



39 (5)*

191 (20)*

1998-99

Total

* Wild Fish in parentheses, estimated for 1993 and 1999.

Table 5. Summary of Estimated Harvest Outside of the Umatilla River Basin for Hatchery Summer Steelhead Adults Returning from Releases in the Umatilla River (based on coded wire tag recoveries).





Year of

Release

Estimated Summer Steelhead Harvested Out of Basin

Canada and Idaho Catch

Columbia River Catch (Nets)

Columbia River Sport Catch

1988

1989


1990

1991


1992

1993


1994

1995


1996

3

0

0



0

0

2



0

0

0



88

0

136


119

48

30


42

100


17

15

6

74



63

4

56



157

75

11



Total

7

580

461

Table 6. The Number and Percent of Steelhead (STS) Available to Spawn Naturally that were of Hatchery Origin; Umatilla River, 1988-1999.




RUN YEAR (Fall/Spring)

1987 1988

1988 1989

1989 1990

1990 1991

1991 1992

1992 1993

1993 1994

1994 1995

1995 1996

1996 1997

1997 1998

1997 1998

Natural Female STS Available to Spawn


1436

1232







1193

872

639

599

863

689

548

713

Natural Male STS Available to Spawn

708

702







814

288

208

185

321

220

221

306

Natural STS Available to Spawn

2144

1934


1290

623

2007

1160

847

784

1184

909

769

1019

Hatchery Female STS Available to Spawn

114

216







161

242

173

253

339

637

454

382

Hatchery Male STS Available to Spawn

46

137







154

167


54

261

280

664

305

193

Hatchery STS Available to Spawn

160

353

102

234

315

409

227

514

619

1301

759

575

Total Female STS Available to Spawn

1550

1448







1354

1114

812

852

1202


1326

1002

1095

Percent Spawners of Hatchery Origin

6.9

15.4

7.3

27.3

13.6

26.1

21.1

39.6

34.3

58.9

49.7

36.1

Percent Females Spawners of Hatchery Origin

7.4

14.9







11.9

21.7

21.3

29.7


28.2

48.0

45.3

34.9

Harvest not estimated 1988-1992. 1993-1999, Harvest estimate subtracted from total, assumes harvest of 50% females and 50% males

No adjustments made for catch and release mortality.

Table 7. Catch and harvest of fin-clipped “trout” (juvenile hatchery steelhead) and unclipped “trout” (rainbow trout and juvenile native steelhead) during steelhead and spring chinook salmon fisheries in the upper Umatilla River, 1999.


Steelhead Fishery (Barnhart Bluffs to CTUIR West Boundary)

January 1 – April 15, 1999

Fish Caught

Estimated

Estimated



Estimated hours of

steelhead angling

8,805






catch

harvest

Hrs / fish

Clipped “trout”

114

0

77.2


*Unclipped “trout”

340

0

25.9













*Unclipped:Clipped “Trout” Catch Ratio = 3:1



Spring Chinook Fishery ( Three Mile Falls Dam to CTUIR West Boundary)

May 29 – June 20, 1999

Fish Caught

Estimated

Estimated










catch

harvest

Hrs / fish



















SALMON ANGLERS









Estimated hours of


Clipped “trout”

40

22

37.5

salmon angling

*Unclipped “trout”

85

47

17.6

1,483
















TROUT ANGLERS










Estimated hours of

Clipped “trout”

162

85

9.0

trout angling

*Unclipped “trout”

868

451

1.7

1,466














TOTAL














Clipped “trout”

202

107

--




*Unclipped “trout”

953

498

--



















*Unclipped:Clipped “Trout” Catch Ratio = 5:1

*Unclipped “trout” includes hatchery trout released for the put-and-take fishery through Pendleton



Table 8. Water quality parameters for steelhead in Michigan raceways, Umatilla Hatchery, 1992-98.


Parameter

Pass

Number

Average

Minimum

Maximum



















Temperature In (C)

A

112

12.4

10.4

15.2




B

93

12.5

10.6

15.0




C

87

12.5

10.2

14.9



















Temperature Out (C)

A

112

12.3

10.4

15.1




B

93

12.5

10.6

15.0




C

86

12.5

10.3

15.2



















pH In

A

107

7.78

6.83

8.63




B

88

7.71

7.08

8.30




C

82

7.64

6.85

8.24



















pH Out

A

107

7.68

6.79

8.30




B

88

7.62

6.73

8.18




C

81

7.60

6.73

8.14



















Oxygen In (ppm)

A

110

12.11

8.7

17.9



B

90

12.72

8.7

19.5




C

83

13.04

9.3

17.6



















Oxygen Out (ppm)

A

110

9.13

5.7

11.9




B

90

9.51

6.2

12.9




C

83

9.79

7.2

14.5



















Un-ionized Ammonia (g/L)

A

88

0.56

0.03

2.56




B

70

1.12

0.12

7.48




C

65

1.49

0.23

11.75

Table 9. Umatilla River summer steelhead broodstock collection







Number Collected

Run

Marked

Unmarked


Total

Year

Males

Females

Total

Males

Females

Total

Males

Females

Total

82-83

83-84


84-85

85-86


86-87

87-88


88-89

89-90


90-91

91-92


92-93

93-94


94-95

95-96


96-97

97-98


98-99

0

0

0



0

0

0



0

0

47



49

1

18



35

16

12



19

17


0

0

0



0

0

0



0

0

56



46

2

25



33

12

1



11

0


0

0

0



0

0

0



0

0

103

95

3

43



68

28

13



30

17


unk

20

25



11

57

73



72

49

46



109

64

47



38

56

48



42

52


unk

32

79



58

91

78



88

57

53



116

61

45



48

49

49



44

59


161

52

104



69

148


151

160


106

99

225



125

92

86



105

97

86



111

unk

20

25



11

57

73



72

49

93



109

65

65



73

72

60



61

69


unk

32

79



58

91

78



88

57

109



116

63

70



81

61

50



55

59


161

52

104



69

148

151

160


106

202


225

128


135

154


133

110


116

128

Table 10. Umatilla River summer steelhead broodstock spawning





Number Spawned




Run

Marked

Unmarked

Total

Eggs

Mean

Year

Males

Female

Total

Males

Female

Total

Males

Female

Total

Taken

Fecundity

82-83

83-84


84-85

85-86


86-87

87-88


88-89

89-90


90-91

91-92


92-93

93-94


94-95

95-96


96-97

97-98


98-99

0

0

0



0

0

0



0

0

11



0

1

0



9

13

2



13

4


0

0

0



0

0

0



0

0

31



0

2

17



13

8

1



8

0


0

0

0



0

0

0



0

0

42



0

3

17



22

21

3



21

4


unk

unk


unk

unk


30

31

42



28

52

86



48

48

31



31

37

30



35

33

21

33



30

37

31



42

25

33



86

47

31



28

32

38



38

41


unk

unk


unk

unk

67

62

84


53

85

172



95

79

59



63

75

68



76

unk

unk


unk

unk


30

31

42



28

63

86



49

48

40



44

39

43



39

33

21

33



30

37

31



42

25

64



86

49

48



41

40

39



46

41


unk

unk


unk

unk


67

62

84



53

127


172

98

96



81

84

78



89

80


132,000

100,000


150,000

166,000


239,760

121,980


214,712

130,274


410,356

476,871


255,441

234,432


223,525

215,408


209,639

228,622


224,716

4,000

4,762

4,545

5,533


6,480

5,545


5,803

5,922


6,412

5,545


5,213

4,884


5,452

5,385


5,375

5,080


5,481

Table 11. Egg take and survival of summer steelhead (brood years 1992-1998) reared at Umatilla Hatchery, 1992-98 broods.



Brood year



Number of eggs

taken or received



Egg-to-fry

survivalab(%)



Egg-to-smolt

survivalbc (%)



1991

340,674

78.4

77.9

1992

476,871

81.4

72.8

1993


255,441

74.1

73.1

1994

234,436

82.4

81.9

1995

223,525

86.8

75.4

1996

215,408

81.6

69.9

1997

209,639

82.4

76.0

1998

228,642

77.7

65.5




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