Growth, Smoltification, and Smolt-to-Adult Return of Spring Chinook Salmon from Hatcheries on the Deschutes River, Oregon
- 1 November 1999
- journal article
- Published by Oxford University Press (OUP) in Transactions of the American Fisheries Society
- Vol. 128 (6) , 1125-1150
- https://doi.org/10.1577/1548-8659(1999)128<1125:gsasta>2.0.co;2
Abstract
The relationship between smoltification and smolt-to-adult return (SAR) of spring chinook salmon Oncorhynchus tshawytscha from the Deschutes River, Oregon, was examined for four release groups in each of three successive years. Fish were reared, marked with coded wire tags, and released from Round Butte Hatchery, Pelton Ladder rearing facility, and Warm Springs National Fish Hatchery. Smolt releases occurred in nearly the same place at similar times, allowing a direct comparison of SAR to several characters representing smolt quality. Return rates varied significantly among facilities, varying over an order of magnitude each year. The highest average SAR was from Pelton Ladder, the lowest was from Warm Springs. Each of the characters used as metrics of smoltification—fish size, spring growth rate (February–April), condition factor, plasma hormone concentration (thyroxine, cortisol, and insulin-like growth factor-I [IGF-I]), stress challenge, gill Na+, K+-ATPase activity, and liver glycogen concen...Keywords
This publication has 102 references indexed in Scilit:
- Behavioral and physiological changes in yearling chinook salmon during hatchery residence and downstream migrationAquaculture, 1994
- Accelerating smolt development and downstream movement in yearling chinook salmon with advanced photoperiod and increased temperatureAquaculture, 1994
- The effect of time, size and sex on recapture rates and yield after river releases of Salmo salar smoltsAquaculture, 1994
- Stimulation of parr-smolt transformation by hormonal treatment in Atlantic salmon (Salmo salar L.)Aquaculture, 1994
- Hybridization with domesticated rainbow trout reduces seasonal variation in seawater adaptability of steelhead trout (Oncorhynchus mykiss)Aquaculture, 1994
- Effects of photoperiod and temperature on growth and parr-smolt transformation in Atlantic salmon (Salmo salar L.) and subsequent performance in seawaterAquaculture, 1994
- Some factors which influence the survival of hatchery Atlantic salmon (Salmo salar) smolts utilized for enhancement purposesAquaculture, 1994
- Raceway density and water flow as factors affecting spring chinook salmon (Oncorhynchus tshawytscha) during rearing and after releaseAquaculture, 1994
- Recapture rates of hatchery-reared Atlantic salmon (Salmo salar) related to smolt development and time of releaseAquaculture, 1993
- The effect of feeding level and rearing density on growth, feed conversion and survival in chinook salmon (Oncorhynchus tshawytscha) reared in salt waterAquaculture, 1993