Western Fisheries Research Center

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Figure 3. Appearance of Descaling Site Exposed to Fast Green FCF Dye
October 30, 2006

Figure 3. Appearance of Descaling Site Exposed to Fast Green FCF Dye

Figure 3. Appearance of descaling site exposed to fast green FCF dye 96 hours after intentional descaling injury, showing lack of scales, presence of fast green staining in areas of epidermal disruption and absence of staining in areas where migrating epidermal cells have closed the wound.

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Figure 4. Scanning Electron Micrograph of Descaling Area
October 30, 2006

Figure 4. Scanning Electron Micrograph of Descaling Area

Figure 4.  Scanning electron micrograph of descaling area delimited by box in Figure 3 showing epidermal disruption (arrows), empty scale pockets and restoration of epidermal integrity (asterisk). An exposed scale with visible concentric ridges is visible at the lower center. Scale bar = 500 µm.

Weighing sturgeon
September 30, 2006

Researcher weighing a sturgeon

Researcher weighing sturgeon.  Columbia River, bottom trawl for young-of-year (YOY) indexing.

Koi infected with spring viremia of carp virus
August 2, 2006

Investigation and Disease Prevention of Spring Viremia of Carp Virus

Typical clinical signs of disease, pop eye, dermal hemorrhages, abdominal distension, and hemorrhages at the base of fins, displayed in koi infected with spring viremia of carp virus (SVCV).

Downloading data in flood
April 17, 2006

Downloading data during a flood on the Klamath River

Downloading data during a flood on the Klamath River.

Juvenile herring with classic signs of VHS
June 1, 2005

Juvenile herring with classic signs of VHS

Juvenile herring with classic signs of VHS including focal hemorrhaging around the eyes, mouth, and fin bases.

Researcher works at microscope
May 12, 2005

Researcher working at the microscope

Researcher, works at the microscope, Marrowstone Marine Field Station, Nordland, WA.

Image: White Sturgeon (Acipenser transmontanus)
February 10, 2005

White Sturgeon (Acipenser transmontanus)

Juvenile white sturgeon held by human hand. Columbia River, bottom trawl for yoy indexing.

Image: Weighing a white sturgeon
February 10, 2005

Weighing a white sturgeon

Weighing a juvenile white sturgeon. Columbia River, bottom trawl for yoy indexing.

Implanting transmitter, white sturgeon
February 1, 2005

Researchers surgically implanting transmitter, white sturgeon

Researchers surgically implanting transmitter, white sturgeon, for passage study. Columbia River near The Dalles Dam.

Implanting transmitter, white sturgeon
February 1, 2005

Researchers surgically implanting transmitter, white sturgeon

Researchers preparing to surgically implant transmitter, white sturgeon, for passage study. Columbia River near The Dalles Dam.