Title: Sustut Weir Steelhead Index 19862001
1Wild Steelhead Stock S
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BC 2004
2British Columbia in Perspective
- 1200 km (720 mi) south to north
-
- 500-1000 km (300 600 mi) wide
- 950,000 sq km (367,000 sq mi)
- 75 mountains 60 forested
- 10 farmland and lakes lt2 rivers
- 7000 km (4200 mi) of coastline
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3Population Details
- 4.0Million total
- 60 Vancouver
- 16 Vancouver Island
- 24 elsewhere but only 4 in northern half
- lt4 Aboriginal
4B C (Wild) Steelhead Facts
- About 580 steelhead rivers (3rd order or
larger) - About 630 stocks (85 WSH, 12 ISSH, 3 CSSH)
- About 1/3 of rivers along remote mid N coast
(seldom, if ever, fished) - About 1/4 of rivers on Vancouver Island
5Guesstimates of Abundance
6Abundance (contd)
7Hatcheries in Perspective
8Number of Streams Stocked with Steelhead
Juveniles Originating From Wild Brood Stock
(Ffry, Ssmolt)
- Time Island Mainland
Thompson Cariboo Skeena All
Period F S
F S F S F S
F S F S - lt 1975 1 3 2 2
0 0 0 0 0
0 3 5 - 197584 11 15 14 8
1 1 2 0 4 1
32 25 - 198594 19 17 18 19
1 1 3 0 8 1
49 38 - 199501 11 10 6 14
1 0 0 0 0 1
18 25 - 2002 9 9 0? 8
0 0 0 0 0
1 9 18
9 Steelhead Releases 1975 - 2001
- Period Av Fry Av Smolts
- 1975-79 .07M .07M
- 1980-84 1.03M .60M
- 1985-89 1.59M .91M
- 1990-94 .73M .82M
- 1995-99 .26M .63M
- 2000-01 .09M .38M
10 Stock Assessment Methods
- Total Counts
- Weirs/resistivity counters (Keogh, Deadman,
Sustut, Kitwanga) -
- Indices of Abundance
- Gillnet test fisheries (Fraser, Skeena)
- Fishwheels (Nass)
- Snorkel observations (some total counts)
- Aerial Counts (Chilko)
- Juvenile sampling
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12Nass River Watershed
13Fishwheel Locations
14Nass River Fishwheels
- 6 wheels operated annually
- Mainly for stock assessment
- Late May to late September
- Now operated as the sole in-season salmon
indicator for the Nass
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16Nass Steelhead Escapement (1994-2003)
17Tyee Test Fishery Location
18Tyee Test Fishing Site
19Skeena Test Fishery Index 1956-2003
20Tyee Test Fishery 2003
21Upper Sustut River Watershed
22Upper Sustut River Weir
23Sustut Weir Counts
Estimated K 1100
24Albion Test Fishery
25Trends in Chilko
26Deadman Creek Resistivity Counter
27Trends in Deadman
28Trends in Bonaparte
29Trends in Nicola
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31Central Coast Index Bella Coola
32Lower Fraser CSSH Index
33WILD STEELHEAD RETURNS TO THE KEOGH RIVER 1976
to 2003
34Keogh River Steelhead Smolt counts, 1977 to 2003
- The capacity for smolts dropped from 7,000
(gt10,000 with nutrient addition) to lt2000 - recent increases in smolts can be attributed to
WRP
35Smolt-to-adult survival trends
SAS has dropped from average of 15 to lt4 Like
wild coho, SAS increased in 97 and 98, but
recently declined based on returns thus far of
2001 smolts
2001 estimate based on partial returns.
36Steelhead smolt yield and adult returns at the
Keogh River, B.C.
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42Englishman River WSH Snorkel Counts 1982-2003
43West Coast Van Isle WSH Index
44Mainland Coast WSH Index
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46In Summary
- The red zone is not diminishing in size or
severity - All the kings horses and all the kings men are
not putting Humpty together again - Mother nature is a b_ _ _ _!
- Fish culture in all its forms is not reversing
anything - We arent fixing the broken habitat and
diminished productivity on anywhere near a scale
that will make a difference - Those who degraded the habitat are not held
accountable - Fisheries managers are becoming as rare as
steelhead
47(Hopefully not) The End