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Title: Smolt Condition and Timing of Arrival at Lower Granite Reservoir, 1988 Annual Report.

Abstract

This project monitored the daily passage of smelts during the 1988 spring outmigration at two migrant traps; one each on the Snake and Clear-water rivers. Due to the low runoff year, chinook salmon catch at the Snake River trap was very low. Steelhead trout catch was higher than normal, probably due to trap modifications and because the trap was moved to the east side of the river. Chinook salmon and steelhead trout catch at the Clearwater River trap was similar to 1987. Total cumulative recovery of PIT tagged fish at the three dams, with PIT tag detection systems was: 55% for chinook salmon, 73% for hatchery steelhead trout, and 75% for wild steelhead trout. Travel time through Lower Granite Reservoir for PIT tagged chinook salmon and steelhead trout, marked at the head of the reservoir, was affected by discharge. Statistical analysis showed that as discharge increased from 40 kcfs to 80 kcfs, chinook salmon travel time decreased three fold, and steelhead trout travel time decreased two fold. There was a statistical difference between estimates of travel time through Lower Granite Reservoir for PIT tagged and freeze branded steelhead trout, but not for chinook salmon. These differences may be related tomore » the estimation techniques used for PIT tagged and freeze branded groups, rather than real differences in travel time.« less

Authors:
;
Publication Date:
Research Org.:
Idaho Department of Fish and Game (IDFG)
Sponsoring Org.:
US Bonneville Power Administration
OSTI Identifier:
889029
Report Number(s):
DOE/BP-11631-5
TRN: US200619%%330
DOE Contract Number:  
1993BP10891
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
13 HYDRO ENERGY; 54 ENVIRONMENTAL SCIENCES; DAMS; DETECTION; GRANITES; MODIFICATIONS; RIVERS; RUNOFF; SALMON; TROUT; Chinook salmon - Migration - Snake River Watershed (Wyo.-Wash.)

Citation Formats

Buettner, Edwin W., and Nelson, William R. Smolt Condition and Timing of Arrival at Lower Granite Reservoir, 1988 Annual Report.. United States: N. p., 1989. Web. doi:10.2172/889029.
Buettner, Edwin W., & Nelson, William R. Smolt Condition and Timing of Arrival at Lower Granite Reservoir, 1988 Annual Report.. United States. https://doi.org/10.2172/889029
Buettner, Edwin W., and Nelson, William R. 1989. "Smolt Condition and Timing of Arrival at Lower Granite Reservoir, 1988 Annual Report.". United States. https://doi.org/10.2172/889029. https://www.osti.gov/servlets/purl/889029.
@article{osti_889029,
title = {Smolt Condition and Timing of Arrival at Lower Granite Reservoir, 1988 Annual Report.},
author = {Buettner, Edwin W. and Nelson, William R.},
abstractNote = {This project monitored the daily passage of smelts during the 1988 spring outmigration at two migrant traps; one each on the Snake and Clear-water rivers. Due to the low runoff year, chinook salmon catch at the Snake River trap was very low. Steelhead trout catch was higher than normal, probably due to trap modifications and because the trap was moved to the east side of the river. Chinook salmon and steelhead trout catch at the Clearwater River trap was similar to 1987. Total cumulative recovery of PIT tagged fish at the three dams, with PIT tag detection systems was: 55% for chinook salmon, 73% for hatchery steelhead trout, and 75% for wild steelhead trout. Travel time through Lower Granite Reservoir for PIT tagged chinook salmon and steelhead trout, marked at the head of the reservoir, was affected by discharge. Statistical analysis showed that as discharge increased from 40 kcfs to 80 kcfs, chinook salmon travel time decreased three fold, and steelhead trout travel time decreased two fold. There was a statistical difference between estimates of travel time through Lower Granite Reservoir for PIT tagged and freeze branded steelhead trout, but not for chinook salmon. These differences may be related to the estimation techniques used for PIT tagged and freeze branded groups, rather than real differences in travel time.},
doi = {10.2172/889029},
url = {https://www.osti.gov/biblio/889029}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Oct 01 00:00:00 EDT 1989},
month = {Sun Oct 01 00:00:00 EDT 1989}
}