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Max (Gordon) Showalter, PhD (Former Employee)

Science and Products

In the News: Herring Featured by Sitka Science Center

In the News: Herring Featured by Sitka Science Center

USGS Western Fisheries Research Center scientist, Paul Hershberger, was featured in a Sitka Science Center news article highlighting his work with...

Read Article
Recent Accomplishments: The Skagit

Recent Accomplishments: The Skagit

The WFRC has worked with Seattle City Light to investigate ecosystem conditions associated with three hydroelectric dams on the upper Skagit River in...

Read Article
Expanding the Science of 6PPD-Quinone: A New Highly Sensitive Species

Expanding the Science of 6PPD-Quinone: A New Highly Sensitive Species

New results from WFRC reveal that coastal cutthroat trout are highly sensitive to 6PPD-quinone, underscoring the need to find alternative chemicals. 

Read Article
A Hidden Risk Below the Surface: Monitoring Gas Bubble Trauma in the Columbia River Basin

A Hidden Risk Below the Surface: Monitoring Gas Bubble Trauma in the Columbia River Basin

WFRC scientists are helping protect fish health in the shadow of the West’s largest hydropower dams.

Read Article
From Egg to Adult: WFRC’s Work to Support California’s Chinook Salmon Population

From Egg to Adult: WFRC’s Work to Support California’s Chinook Salmon Population

WFRC research provides critical insights into salmon recovery in California’s Sacramento River. 

Read Article
Tracking Invasive African Clawed Frogs in Washington: New Insights and Ongoing Challenges

Tracking Invasive African Clawed Frogs in Washington: New Insights and Ongoing Challenges

WFRC research helps uncover the spread and impact of invasive African clawed frogs in Washington.

Read Article
Partner Experience: Keeping an Eye on Flukes in Upper Klamath Lake

Partner Experience: Keeping an Eye on Flukes in Upper Klamath Lake

Biologist Sarah Flores of the Pacific States Marine Fisheries Commission shares how her collaborative science with the Western Fisheries Research...

Read Article
Congratulations to Joe Skalicky for Winning this Issue’s Photo Contest!

Congratulations to Joe Skalicky for Winning this Issue’s Photo Contest!

Marty Liedtke and Lisa Weiland seek to understand how larval lamprey populations survive under various substrate conditions. 

Read Article
figure showing 6ppd-quinone concentrations lethal to different type of fish on log scale
6PPD-quinone Fish Sensitivity
6PPD-quinone Fish Sensitivity
figure showing 6ppd-quinone concentrations lethal to different type of fish on log scale

6PPD-quinone Fish Sensitivity

6PPD-quinone Fish Sensitivity

This is an infographic showing different fish and their sensitivity to 6PPD-quinone, on a logarithmic scale.

By
Western Fisheries Research Center
figure showing 6ppd-quinone concentrations lethal to different type of fish on log scale

6PPD-quinone Fish Sensitivity

6PPD-quinone Fish Sensitivity

This is an infographic showing different fish and their sensitivity to 6PPD-quinone, on a logarithmic scale.

By
Western Fisheries Research Center

Science and Products

In the News: Herring Featured by Sitka Science Center

In the News: Herring Featured by Sitka Science Center

USGS Western Fisheries Research Center scientist, Paul Hershberger, was featured in a Sitka Science Center news article highlighting his work with...

Read Article
Recent Accomplishments: The Skagit

Recent Accomplishments: The Skagit

The WFRC has worked with Seattle City Light to investigate ecosystem conditions associated with three hydroelectric dams on the upper Skagit River in...

Read Article
Expanding the Science of 6PPD-Quinone: A New Highly Sensitive Species

Expanding the Science of 6PPD-Quinone: A New Highly Sensitive Species

New results from WFRC reveal that coastal cutthroat trout are highly sensitive to 6PPD-quinone, underscoring the need to find alternative chemicals. 

Read Article
A Hidden Risk Below the Surface: Monitoring Gas Bubble Trauma in the Columbia River Basin

A Hidden Risk Below the Surface: Monitoring Gas Bubble Trauma in the Columbia River Basin

WFRC scientists are helping protect fish health in the shadow of the West’s largest hydropower dams.

Read Article
From Egg to Adult: WFRC’s Work to Support California’s Chinook Salmon Population

From Egg to Adult: WFRC’s Work to Support California’s Chinook Salmon Population

WFRC research provides critical insights into salmon recovery in California’s Sacramento River. 

Read Article
Tracking Invasive African Clawed Frogs in Washington: New Insights and Ongoing Challenges

Tracking Invasive African Clawed Frogs in Washington: New Insights and Ongoing Challenges

WFRC research helps uncover the spread and impact of invasive African clawed frogs in Washington.

Read Article
Partner Experience: Keeping an Eye on Flukes in Upper Klamath Lake

Partner Experience: Keeping an Eye on Flukes in Upper Klamath Lake

Biologist Sarah Flores of the Pacific States Marine Fisheries Commission shares how her collaborative science with the Western Fisheries Research...

Read Article
Congratulations to Joe Skalicky for Winning this Issue’s Photo Contest!

Congratulations to Joe Skalicky for Winning this Issue’s Photo Contest!

Marty Liedtke and Lisa Weiland seek to understand how larval lamprey populations survive under various substrate conditions. 

Read Article
figure showing 6ppd-quinone concentrations lethal to different type of fish on log scale
6PPD-quinone Fish Sensitivity
6PPD-quinone Fish Sensitivity
figure showing 6ppd-quinone concentrations lethal to different type of fish on log scale

6PPD-quinone Fish Sensitivity

6PPD-quinone Fish Sensitivity

This is an infographic showing different fish and their sensitivity to 6PPD-quinone, on a logarithmic scale.

By
Western Fisheries Research Center
figure showing 6ppd-quinone concentrations lethal to different type of fish on log scale

6PPD-quinone Fish Sensitivity

6PPD-quinone Fish Sensitivity

This is an infographic showing different fish and their sensitivity to 6PPD-quinone, on a logarithmic scale.

By
Western Fisheries Research Center
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