Intensive Evaluation and Monitoring of Chinook Salmon and Steelhead Trout Production, Crooked River and Upper Salmon River Sites, 1994 Annual Report.

Kiefer, Russell B.; Lockhart, Jerald N.

doi:10.2172/544740

Cited by 4 publications

(4 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Often, snorkelers aided in locating the parr. Parr were collected by seining, electrofishing, and with minnow traps when water temperatures were less than 20 o C. PIT tagging protocols followed procedures described by Kiefer and Forster (1991) and the PIT Tag Steering Committee (1992). A minimum goal of 500-700 parr was targeted for tagging, but collected parr were often too small (<60 mm) to tag.…”

Section: Summer Parr Taggingmentioning

confidence: 99%

“…A sample (usually up to 25-50 fish per day) was then marked either with PIT tags or caudal fin clips. The PIT tagging protocols followed procedures described by Kiefer and Forster (1991) and the PIT Tag Steering Committee (1992). From 1992-1994, fish ≥55 mm were tagged.…”

Section: Juvenile Emigrationmentioning

confidence: 99%

“…Relative confidence intervals were large and beyond the precision called for in the study design . This imprecision was possibly due to the small proportion (usually <10%) of each stream snorkeled, along with the often low and clustered densities of parr (e.g., Appendix C1 of Kiefer and Lockhart 1997). However, changes in population estimation methods (strata based on habitat types versus channel type) and increases in sampling effort (increased number of sites) did not reduce variability or increase precision .…”

Section: Parr Population Estimates and Densitiesmentioning

confidence: 99%

See 2 more Smart Citations

Idaho Supplementation Studies : Five Year Report : 1992-1996.

Walters¹

1999

View full text Add to dashboard Cite

Section: Summer Parr Taggingmentioning

confidence: 99%

Section: Juvenile Emigrationmentioning

confidence: 99%

Section: Parr Population Estimates and Densitiesmentioning

confidence: 99%

See 1 more Smart Citation

Idaho Supplementation Studies : Five Year Report : 1992-1996.

Walters¹

1999

View full text Add to dashboard Cite

“…National Marine Fisheries Service (Accord et al 1992, 1995a. 1995b, Matthews et al 1990 Idaho Department of Fish and Game (Kiefer et al 1990(Kiefer et al , 1993(Kiefer et al , 1994, Oregon Department of Fish and Game (Walters et al 1996 and the Nez Perce Tribe (Ashe et al 1995, Blenden et al 1996. The detection of tagged individuals at Lower Granite Dam provides a measure of the temporal and spatial distribution of the wild populations.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the 1996 Predictions of the Run-Timing of Wild Migrant Spring/Summer Yearling Chinook in the Snake River Basin Using Program RealTime.

Townsend¹,

Yasuda²,

Skalski³

1997

View full text Add to dashboard Cite

Reproductive Behavior and Success of Captive‐Reared Chinook Salmon Spawning under Natural Conditions

Venditti

James

Kline

2013

N American J Fish Manag

View full text Add to dashboard Cite

In response to declining returns of Pacific salmon Oncorhynchus spp., captive‐rearing programs have emerged as one approach to maintain natural‐origin stocks while mechanisms responsible for their decline are addressed. However, it remains unclear if observed differences in reproductive behavior between captive‐origin (captive) and natural‐origin (natural) Chinook Salmon O. tshawytscha in laboratory experiments accurately predict reproductive success of captive salmon in the natural environment. Over a 4‐year period, 859 natural Chinook Salmon juveniles were collected for full‐term rearing in captivity. From these, we returned 247 maturing adults to their natal stream over 2 years, assessed trends in habitat use, monitored their courtship and spawning behaviors, and sampled their redds to determine if fertilized eggs were present. Habitat use followed a logical trend toward spawning areas as the season progressed. Captive fish were smaller and spawned later than did natural fish, but their size did not prevent females from constructing redds or prevent males from courting and fertilizing eggs. Captive fish were observed participating in 16 spawning events over two seasons. Captive and natural males displayed the same courtship behaviors, but natural males were more aggressive. Captive females selected redd sites similar to those of natural females and displayed digging behavior consistent with published observations. Eggs were collected from 22 of the 26 redds sampled, and survival to organogenesis was 68.3% in 2001 and 34.6% in 2002. The decline in 2002 was at least partially due to an apparent failure of females from brood year 1997 to produce viable eggs. We estimated captive fish contributed 19,000 eyed eggs to the population. If the 859 juveniles reared in captivity had been left in the stream, fewer than one adult would be expected to have returned. Growth, timing of spawning, and egg survival issues remain in captive fish, which illustrates a need to focus future research on improved culture techniques.Received July 21, 2011; accepted October 26, 2012

show abstract

Intensive Evaluation and Monitoring of Chinook Salmon and Steelhead Trout Production, Crooked River and Upper Salmon River Sites, 1994 Annual Report.

Cited by 4 publications

References 0 publications

Idaho Supplementation Studies : Five Year Report : 1992-1996.

Idaho Supplementation Studies : Five Year Report : 1992-1996.

Evaluation of the 1996 Predictions of the Run-Timing of Wild Migrant Spring/Summer Yearling Chinook in the Snake River Basin Using Program RealTime.

Reproductive Behavior and Success of Captive‐Reared Chinook Salmon Spawning under Natural Conditions

Contact Info

Product

Resources

About