Fish
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Columbia River Basin Sturgeon Habitat Modeling
A study was conducted to identify habitat characteristics associated with age 0 White Sturgeon ( Acipenser transmontanus Richardson, 1863) recruitment in three reaches of the Columbia River Basin: Skamania reach (consistent recruitment), John Day reach (intermittent/inconsistent recruitment), and Kootenai reach (no recruitment).
Molecular Characterization of Novel Fish Viruses from Technical Assistance Cases
Viruses occur in many cultured and wild stocks of fish. William Batts collaborates with many government, state, tribal, and private research and diagnostic laboratories to aid in identification of these unknown replicating agents of uncertain pathogenicity. Typically, viruses can be replicated in a variety of fish cell lines and investigated at several temperatures to see if the cytopathic effect...
Non-lethal Detection of Skin Injuries in Juvenile Chinook Salmon Oncorhynchus tshawytscha by Fast Green FCF Dye
In fish, as in humans, an intact epidermis is critical to defense against entry of pathogens into the skin. Macroscopic examination of scale loss is the principal method of evaluating physical damage to juvenile salmonids out-migrating through hydroelectric dams in the Snake and Columbia Rivers, and in fish subjected to capture and handling procedures in locations such as hatcheries, fish bypass...
Contaminants in Puget Sound Forage Fishes and Impacts to the Marine Food Web
Toxic chemical pollutants have been released into Puget Sound for decades by human activities. There’s a wide range of contaminants, from persistent compounds like polychlorinated biphenyls (PCBs) and flame retardants to contaminants of emerging concern. Aquatic species can be exposed to and accumulate contaminants, causing disease or disruption of biological processes like growth or reproduction...
Cutthroat Trout (Oncorhynchus clarkii)
Species Studied - Cutthroat trout ( Oncorhynchus clarkii )
Investigation and Disease Prevention of Spring Viremia of Carp Virus (SVCV)
There has been long history of disease outbreaks and economic losses in wild and farmed carp species due to SVCV. Formerly thought to be restricted to Europe and Asia, SVCV was detected for the first time in North America from diseased koi at a North Carolina fish farm in 2002, and there were extensive eradication efforts with 135,000 fish euthanized in addition to the ~15,000 that died from the...
Scientific Support of Salmon and Steelhead Reintroductions in Impounded River Basins of the Pacific Northwest
Salmon and steelhead populations in the Pacific Northwest were severely affected by hydropower development that occurred during the first half of the 20th century. Impassable dams were constructed on many rivers throughout the region which prevented returning adult salmonids from accessing important habitats where spawning and rearing historically occurred. In the past two decades resource...
Shortnose Sucker (Chasmistes brevirostris) - KFFS
Species Studied - Shortnose Sucker ( Chasmistes brevirostris )
Steelhead (Oncorhynchus mykiss) - KFFS
Species Studied Steelhead ( Oncorhynchus mykiss )
Lost River Sucker (Deltistes luxatus) - KFFS
Species Studied - Lost River Sucker ( Deltistes luxatus )
Coho Salmon (Oncorhynchus kisutch) - KFFS
Species Studied - Coho Salmon ( Oncorhynchus kisutch )
Klamath Largescale Sucker (Catostomus snyderi) - KFFS
Species Studied - Klamath Largescale Sucker ( Catostomus snyderi )