Publications
USGS divers in the Elwha River
WFRC zebrafish laboratory
Processing a Lost River sucker
Below is a list of available WFRC peer reviewed and published science.
Filter Total Items: 2528
Benthic macroinvertebrate distribution in thermal springs of the Muddy River Benthic macroinvertebrate distribution in thermal springs of the Muddy River
Abstract not available
Authors
K.M. Swaim, R.R McShane, G.G. Scoppettone
Migration and rearing histories of chinook salmon (Oncorhynchus tshawytscha) determined by ion microprobe Sr isotope and Sr/Ca transects of otoliths Migration and rearing histories of chinook salmon (Oncorhynchus tshawytscha) determined by ion microprobe Sr isotope and Sr/Ca transects of otoliths
Strontium isotope and Sr/Ca ratios measured in situ by ion microprobe along radial transects of otoliths of juvenile chinook salmon (Oncorhynchus tshawytscha) vary between watersheds with contrasting geology. Otoliths from ocean-type chinook from Skagit River estuary, Washington, had prehatch regions with 87Sr/86Sr ratios of ~0.709, suggesting a maternally inherited marine signature...
Authors
C. R. Bacon, P.K. Weber, K.A. Larsen, R. Reisenbichler, J.A. Fitzpatrick, J. L. Wooden
Persistence of identifiable remains of white sturgeon juveniles in digestive tracts of northern pikeminnow Persistence of identifiable remains of white sturgeon juveniles in digestive tracts of northern pikeminnow
Juvenile white sturgeon, Acipenser transmontanus, have not been commonly identified as prey items in digestive tracts of fishes collected in the wild. In particular, the diet of northern pikeminnow, Ptychocheilus oregonensis, an abundant Pacific Northwest freshwater predator which has been widely studied, has not included juvenile white sturgeon. To aid in interpreting these results and...
Authors
D.M. Gadomski, C.N. Frost
Ecological and political issues surrounding decommissioning of offshore oil facilities in the Southern California Bight Ecological and political issues surrounding decommissioning of offshore oil facilities in the Southern California Bight
To aid legislators, resource managers, and the general public, this paper summarizes and clarifies some of the issues and options that the federal government and the state of California face in decommissioning offshore oil and gas production platforms, particularly as these relate to platform ecology. Both local marine ecology and political climate play a role in decommissioning offshore...
Authors
Donna M. Schroeder, Milton S. Love
Quantitative expression profiling of immune response genes in rainbow trout following infectious haematopoietic necrosis virus (IHNV) infection or DNA vaccination Quantitative expression profiling of immune response genes in rainbow trout following infectious haematopoietic necrosis virus (IHNV) infection or DNA vaccination
Infectious haematopoietic necrosis virus (IHNV) is a well-studied virus of salmonid fishes. A highly efficacious DNA vaccine has been developed against this virus and studies have demonstrated that this vaccine induces both an early and transient non-specific anti-viral phase as well as long-term specific protection. The mechanisms of the early anti-viral phase are not known, but...
Authors
Maureen K. Purcell, Gael Kurath, Kyle A. Garver, Russell P. Herwig, James R. Winton
Report of the technical review panel - compatibility of Coleman National Fish Hatchery operations and restoration of anadromous salmonids in Battle Creek Report of the technical review panel - compatibility of Coleman National Fish Hatchery operations and restoration of anadromous salmonids in Battle Creek
No abstract available
Authors
C. Busack, D. Hankin, R.P. Hedrick, J.A. Lichatowich, R. Reisenbichler
Tailrace Egress of yearling and subyearling Chinook salmon and juvenile steelhead following juvenile bypass system passage at John Day Dam, 2002 Tailrace Egress of yearling and subyearling Chinook salmon and juvenile steelhead following juvenile bypass system passage at John Day Dam, 2002
No abstract available.
Authors
C. D. Smith, Theresa L. Liedtke, B.J. Hausmann, Jacquelyn L. Schei, J.R. Lyng, L.P. Gee, John W. Beeman
Chromosome numbers and karyotype evolution in holoparasitic Orobanche (Orobanchaceae) and related genera Chromosome numbers and karyotype evolution in holoparasitic Orobanche (Orobanchaceae) and related genera
Chromosome numbers and karyotypes of species of Orobanche, Cistanche, and Diphelypaea (Orobanchaceae) were investigated, and 108 chromosome counts of 53 taxa, 19 counted for the first time, are presented with a thorough compilation of previously published data. Additionally, karyotypes of representatives of these genera, including Orobanche sects. Orobanche and Trionychon, are reported...
Authors
G.M. Schneeweiss, T. Palomeque, A.E. Colwell, H. Weiss-Schneeweiss
Critical swimming speeds of wild bull trout Critical swimming speeds of wild bull trout
We estimated the critical swimming speeds (Ucrit) of wild bull trout at 6??, 11??, and 15??C in laboratory experiments. At 11??C, 5 fish ranging from 11 to 19 cm in length had a mean Ucrit of 48.24 cm/s or 3.22 body lengths per second (BL/s). Also at 11??C , 6 fish from 32 to 42 cm had a mean Ucrit of 73.99 cm/s or 2.05 BL/s. At 15??C, 5 fish from 14 to 23 cm had a mean Ucrit of 54.66 cm...
Authors
M.G. Mesa, L.K. Weiland, G.B. Zydlewski
Status of Virgin River chub and other fishes of the Muddy River following 1995 invasion of blue tilapia in Warm Springs Area Status of Virgin River chub and other fishes of the Muddy River following 1995 invasion of blue tilapia in Warm Springs Area
No abstract available
Authors
K.M. Swaim, R.R McShane, G.G. Scoppettone
Reproductive status of western mosquitofish inhabiting selenium- contaminated waters in the Grassland Water District, Merced County, California Reproductive status of western mosquitofish inhabiting selenium- contaminated waters in the Grassland Water District, Merced County, California
This study was implemented to determine if western mosquitofish (Gambusia affinis) populations in the Grassland Water District suffer from impaired reproduction because of seleniferous inflows of agricultural drainwater from the Grassland Bypass Project. During June to July 2001, laboratory trials with pregnant female fish collected from two seleniferous treatment sites exposed to...
Authors
M. K. Saiki, B.A. Martin, T.W. May
The role of fungal symbiosis in the adaptation of plants to high stress environments The role of fungal symbiosis in the adaptation of plants to high stress environments
All plants studied in natural ecosystemsare symbiotic with fungi that either resideentirely (endophytes) or partially(mycorrhizae) within plants. Thesesymbioses appear to adapt to biotic andabiotic stresses and may be responsible forthe survival of both plant hosts and fungalsymbionts in high stress habitats. Here wedescribe the role of symbiotic fungi inplant stress tolerance and...
Authors
Russell J. Rodriguez, Regina S. Redman, Joan M. Henson