Year | Accomplishment |
1991 |
Identified study areas, broodstocks, facilities to be used. |
1991 |
Broodstock development. |
1992 |
Begin supplementation and monitoring of treatment streams, and monitoring of control streams |
1993 |
Release of progeny from supplementation brood stocks to treatment streams. |
1994 |
Release of progeny from supplementation brood stocks to treatment streams. |
1995 |
Release of progeny from supplementation brood stocks to treatment streams. |
1995 |
Monitor adult returns from prior years supplementation releases and incorporate adults into second generation brood stock. |
1996 |
Small scale investigations into chinook salmon supplementation strategies and techniques: 1992-1994. Technical Report. Perry, C.A. and T.C. Bjornn. |
1996 |
Release of progeny from supplementation brood stocks to treatment streams. |
1996 |
Monitor adult returns from prior years supplementation releases and incorporate adults into second generation brood stock. |
1997 |
Release of progeny from supplementation brood stocks to treatment streams. |
1997 |
Monitor adult returns from prior years supplementation releases and incorporate adults into second generation brood stock. |
1998 |
Five-year Report (1991-1996) in progress, all cooperators participate. |
1998 |
Release of progeny from supplementation brood stocks to treatment streams. |
1998 |
Monitor adult returns from prior years supplementation releases and incorporate adults into second generation brood stock. |
1999 |
Release of progeny from supplementation brood stocks to treatment streams. |
1999 |
Monitor adult returns from prior years supplementation releases and incorporate adults into second generation brood stock. |
1999 |
Complete final draft of Five-Year Report and distribute among cooperator agencies for policy review. |
Objective | Task | Duration in FYs | Estimated 2001 cost | Subcontractor |
1. Monitor and evaluate the effects of supplementation on parr, presmolt and smolt numbers, and spawning escapements of naturally-produced populations. |
a. Continue to implement 'standardized' spawning, rearing, marking, and release protocols. |
6 |
$17,863 |
|
|
b. Differentially mark all hatchery supplementation and general production fish released in or nearby the study streams. |
2 |
$19,065 |
|
|
c. PIT tag a minimum of 500 hatchery supplementation and general production fish released in or nearby the study streams. |
2 |
$54,352 |
|
|
d. Release various life stages of chinook salmon. Determine fish numbers for each life stage based on existing natural production and natural rearing capacity. |
6 |
$14,436 |
|
|
e. Estimate late summer parr densities from snorkel surveys. |
6 |
$125,145 |
|
|
f. PIT tag a minimum of 700 naturally-produced parr from each treatment and control stream to estimate smolt production and survival. |
6 |
$268,588 |
|
|
g. Use existing weirs to collect, mark (PIT-tag), and enumerate emigrating fish and to identify and enumerate returning adults. |
6 |
$68,837 |
|
|
h. Compare natural production of supplemented populations to unsupplemented populations and baseline data. |
6 |
$41,042 |
|
2. Monitor and evaluate changes in natural productivity and genetic composition of target and adjacent populations following supplementation. |
a. Monitor productivity and genetic indices from supplemented populations and compare baseline an controls. Productivity characteristics will be evaluated as a function of density or percent carrying capacity. |
6 |
$65,178 |
|
|
b. Monitor straying of hatchery supplementation fish into adjacent and control streams by weirs and carcass surveys. |
6 |
$58,839 |
|
|
c. Determine spawner to recruitment relationship based on determined production and productivity indices (parr and smolt numbers, adult escapements, survival, eggs/spawners, etc.) |
6 |
$42,559 |
|
|
d. Predict population viability based on spawner to recruitment relationship to determine if the population will maintain itself through time in the absence of additional supplementation. |
6 |
$21,031 |
|
3. Determines which supplementation strategies (broodstock and release stage) provide the quickest and highest responses in natural production without adverse effects on productivity. |
a. Monitor and evaluate natural production (presmolt, smolt, and adult numbers) and productivity of supplemented populations and compare to baseline and controls. |
6 |
$53,484 |
|
|
b. Use local brood stocks with known natural component from the target population during the second generation of supplementation. |
1 |
$34,804 |
|
|
c. Compare natural production and productivity indices of supplemented populations using existing hatchery brood stocks (first generation) to populations using locally developed brood stocks (second generation). |
6 |
$34,598 |
|
|
d. Compare natural production and productivity indices among supplemented populations using parr, presmolt, and smolt release strategies. |
6 |
$27,333 |
|
4. Information/Technology transfer. Develop supplementation recommendations (long-term). |
a. Participate in Technical Oversight Committee process. Guidelines and recommendations will be developed addressing risks and benefits of supplementation. |
7 |
$27,846 |
|
This information was not provided on the original proposals, but was generated during the review process.