SELECT AREA FISHERY EVALUATION BPA Project # 199306000 CEDC, ODFW, WDFW.

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Transcript of SELECT AREA FISHERY EVALUATION BPA Project # 199306000 CEDC, ODFW, WDFW.

SELECT AREA FISHERY EVALUATION

BPA Project # 199306000

CEDC, ODFW, WDFW

Project Goal: Develop and enhance known stock fisheries in LCR while protecting depressed wild stocks

Project Background: Research (1994-1995)

Investigated 9 potential sites Test fishing for stock composition Determined rearing strategies

Expansion/Introduction (1996-1998) Expanded Young’s Bay production Established fisheries in 5 new sites

Implementation (1999-2003)• Expand species, capacity, and releases in all areas

Overview

O REG O N

Washington

YoungsBay

Tongue Point

SouthChannel

BlindSlough

KnappaSlough

N

10 15

20

25 30

35

40

45

DeepRiver

F igure 1. S elect A rea Fishery Locations

SteamboatSlough

Net Pen Sites

Rearing

Net Pen Sites Young’s Bay (76 pens)

COH, CHS, CHF-SAB Tongue Point (37 pens)

COH Blind Slough (15 pens)

COH, CHS Deep River (36 pens)

COH, CHS Steamboat Slough (16 pens)

COH

Hatcheries Big Cr, CEDC, Cowlitz R, Eagle Cr, Elochoman R, Gnat Cr, Gray’s R, Klaskanine, Oxbow, Sandy, Willamette

Releases

0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

5

1994 1995 1996 1997 1998 1999 2000 2001 2002

Mil

lio

ns

of

Fis

h

COH

CHS

CHF (SAB)

Past Releases COH 2-4 million CHS stable @ 1 million CHF-SAB fluctuating

2002 Releases 3.8 million COH 1.0 million CHS 1.6 million CHF-SAB

Commercial Fisheries

Expanded and stable commercial opportunities Expanded market window Targets local stocks Minimal ESU impacts Minimal handle of incidental species

$0

$40,000

$80,000

$120,000

$160,000

$200,000

$240,000

$280,000

$320,000

1992 1993 1994 1995 1996 1997 1998 1999 2000

Blind Slough

Tongue Point

Youngs Bay

2001

Ex-Vessel Values of Select Area Spring Fisheries, 1992-2001

Upriver Spring Chinook Impact Rates in Select Area Fisheries, 1992-2001

0

0.1

0.2

0.3

0.4

0.5

1992

1993

1994

1995

1996

1997

1998

1999

2000

2001

Imp

act

(%)

Upriver CHS

Recreational Fisheries

SAFE releases contribute to ocean and mainstem fisheries Fisheries developing in SAFE areas

Open year-round Virtually no impacts on non-target species Quality fish and fishery

Experiments

Rearing & release experiments

Time and size of release

Acclimation & over-winter rearing

Rearing density

Winter dormancy feeding

Subsurface feeding

Avian avoidance releases

Release location

Project Monitoring

Commercial Landings Catch sampling Stock composition

Local vs. non-local ESA impacts

Recreational Catch and effort estimates Stock composition

Rearing studies Smolt and adult survival rates

Water quality

Physio-chemical Temp, pH, DO, etc.

Benthic Invertebrates/Substrate

Select Area Fisheries Evaluation

Select Area Fishery Benefits: Known stock commercial harvest opportunities Supplements existing recreational fisheries and

creates new opportunities Fisheries managed within ESA guidelines Minimal impacts on non-target species High survival rates Fisheries called for in NWPPC F&W Program

and 2001 BO Fisheries approved by Columbia River Compact

Select Area Fisheries Evaluation

Goals for 2003-2007: Maintain species diversity Increase production of high value species Expand to full production at some sites Enhance SAFE fisheries at other sites Investigate new areas, rearing strategies, and harvest methods Continue monitoring efforts

Select Area Fisheries Evaluation

Plans for 2003-2007: Full Production:

Spring Chinook Youngs Bay and Blind Slough

Coho Young’s Bay, Tongue Point, Blind Slough, and Deep River

Continued Research: Spring Chinook

Deep River and Steamboat Slough Investigate homing enhancement at Tongue Point

Coho Steamboat Slough

Fall Chinook (SAB) Young’s Bay Achieve broodstock escapement needs

Actual and potential ex-vessel values of spring select area fisheries

$0

$200,000

$400,000

$600,000

$800,000

$1,000,000

$1,200,000

$1,400,000

$1,600,000Ex-vessel

Assessment

Actual Predicted

Predictions based an average adult returns to Oregon and Washington SAFE sites from a combined 3,600,000 CHS releases of 2004 brood, 15# average adult weight and $2.50/pound ex-vessel value