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Brian Hayes

Brian is a Fish Biologist at the USGS, Klamath Falls Field Station.

Education and Certifications

  • B.S. 1999. Fisheries Science, Oregon State University, Corvallis, OR

Science and Products

PIT Tags Encountered by Klamath Falls Field Station Equipment in the Upper Klamath Basin 1993-2025 (ver. 5.0, March 2025)

Data were collected as part of a long-term capture-recapture program to assess the status and dynamics of populations of two long-lived, federally endangered catostomids in Upper Klamath Lake, Oregon and Clear Lake Reservoir, California. Lost River suckers (LRS; Deltistes luxatus) and shortnose suckers (SNS; Chasmistes brevirostris) have been captured and tagged with passive integrated...
By
Western Fisheries Research Center

PIT Tags Encountered by Klamath Falls Field Station Equipment in the Upper Klamath Basin 1993-2024 (ver. 4.0, August 2024)

Data were collected as part of a long-term capture-recapture program to assess the status and dynamics of populations of two long-lived, federally endangered catostomids in Upper Klamath Lake, Oregon and Clear Lake Reservoir, California. Lost River suckers (LRS; Deltistes luxatus) and shortnose suckers (SNS; Chasmistes brevirostris) have been captured and tagged with passive integrated...
By
Western Fisheries Research Center

PIT Tags Encountered by Klamath Falls Field Station Equipment in the Upper Klamath Basin 1993-2024 (ver. 3.0, April 2024)

Data were collected as part of a long-term capture-recapture program to assess the status and dynamics of populations of two long-lived, federally endangered catostomids in Upper Klamath Lake, Oregon and Clear Lake Reservoir, California. Lost River suckers (LRS; Deltistes luxatus) and shortnose suckers (SNS; Chasmistes brevirostris) have been captured and tagged with passive integrated...
By
Western Fisheries Research Center

PIT Tags Encountered by Klamath Falls Field Station Equipment in the Upper Klamath Basin 1993-2023 (ver. 2.0, August 2023)

Data were collected as part of a long-term capture-recapture program to assess the status and dynamics of populations of two long-lived, federally endangered catostomids in Upper Klamath Lake, Oregon and Clear Lake Reservoir, California. Lost River suckers (LRS; Deltistes luxatus) and shortnose suckers (SNS; Chasmistes brevirostris) have been captured and tagged with passive integrated...
By
Western Fisheries Research Center, Klamath Falls Field Station (KFFS)

PIT Tags Encountered by Klamath Falls Field Station Equipment in the Upper Klamath Basin

Data were collected as part of a long-term capture-recapture program to assess the status and dynamics of populations of two long-lived, federally endangered catostomids in Upper Klamath Lake, Oregon and Clear Lake Reservoir, California. Lost River suckers (LRS; Deltistes luxatus) and shortnose suckers (SNS; Chasmistes brevirostris) have been captured and tagged with passive integrated...
By
Western Fisheries Research Center, Klamath Falls Field Station (KFFS)
Spawning Lost River suckers
Spawning Lost River suckers
Spawning Lost River suckers
Spawning Lost River suckers

Spawning Lost River suckers

Spawning Lost River suckers

Lost River suckers congregating to spawn on Sucker Springs in Upper Klamath Lake, Oregon.

By
Western Fisheries Research Center, Klamath Falls Field Station (KFFS)
Spawning Lost River suckers

Spawning Lost River suckers

Spawning Lost River suckers

Lost River suckers congregating to spawn on Sucker Springs in Upper Klamath Lake, Oregon.

By
Western Fisheries Research Center, Klamath Falls Field Station (KFFS)
Willow Creek detection station PIT tag system
Willow Creek detection station PIT tag systems
Willow Creek detection station PIT tag systems
Willow Creek detection station PIT tag system

Willow Creek detection station PIT tag systems

Willow Creek detection station PIT tag systems

Passive Integrated Transponder (PIT) tag detection station on Willow Creek, California. Systems like this one are used to detect movements of endangered Lost River and shortnose suckers in remote locations.

By
Western Fisheries Research Center, Klamath Falls Field Station (KFFS)
Willow Creek detection station PIT tag system

Willow Creek detection station PIT tag systems

Willow Creek detection station PIT tag systems

Passive Integrated Transponder (PIT) tag detection station on Willow Creek, California. Systems like this one are used to detect movements of endangered Lost River and shortnose suckers in remote locations.

By
Western Fisheries Research Center, Klamath Falls Field Station (KFFS)
Processing a Lost River sucker
Processing a Lost River sucker
Processing a Lost River sucker
Processing a Lost River sucker

Processing a Lost River sucker

Processing a Lost River sucker

Researcher processing a Lost River sucker at Sucker Springs on Upper Klamath Lake.

By
Western Fisheries Research Center, Klamath Falls Field Station (KFFS)
Processing a Lost River sucker

Processing a Lost River sucker

Processing a Lost River sucker

Researcher processing a Lost River sucker at Sucker Springs on Upper Klamath Lake.

By
Western Fisheries Research Center, Klamath Falls Field Station (KFFS)
Pahranagat chub (Gila robusta)
Pahranagat chub (Gila robusta)
Pahranagat chub (Gila robusta)
Pahranagat chub (Gila robusta)

Pahranagat chub (Gila robusta)

Pahranagat chub (Gila robusta)

Pahranagat Roundtail Chub (Gila robusta jordani) in the Pahranagat River, NV.

By
Western Fisheries Research Center, Klamath Falls Field Station (KFFS)
Pahranagat chub (Gila robusta)

Pahranagat chub (Gila robusta)

Pahranagat chub (Gila robusta)

Pahranagat Roundtail Chub (Gila robusta jordani) in the Pahranagat River, NV.

By
Western Fisheries Research Center, Klamath Falls Field Station (KFFS)
Installation of PIT tag antennas
Installation of two 20' PIT tag antennas
Installation of two 20' PIT tag antennas
Installation of PIT tag antennas

Installation of two 20' PIT tag antennas

Installation of two 20' PIT tag antennas

Installation of two 20' PIT tag antennas.  Antennas are used to monitor movements of Lost River and shortnose suckers and Redband trout through the Klamath Basin.

By
Western Fisheries Research Center, Klamath Falls Field Station (KFFS)
Installation of PIT tag antennas

Installation of two 20' PIT tag antennas

Installation of two 20' PIT tag antennas

Installation of two 20' PIT tag antennas.  Antennas are used to monitor movements of Lost River and shortnose suckers and Redband trout through the Klamath Basin.

By
Western Fisheries Research Center, Klamath Falls Field Station (KFFS)
Downloading data in flood
Downloading data during a flood on the Williamson River
Downloading data during a flood on the Williamson River
Downloading data in flood

Downloading data during a flood on the Williamson River

Downloading data during a flood on the Williamson River

Researcher from Klamath Falls Field Station downloading data during a flood on the Williamson River Oregon.

By
Western Fisheries Research Center, Klamath Falls Field Station (KFFS)
Downloading data in flood

Downloading data during a flood on the Williamson River

Downloading data during a flood on the Williamson River

Researcher from Klamath Falls Field Station downloading data during a flood on the Williamson River Oregon.

By
Western Fisheries Research Center, Klamath Falls Field Station (KFFS)
Filter Total Items: 30

Predation of Lost River and Shortnose suckers by piscivorous colonial waterbirds in the Upper Klamath Basin: An analysis of predation effects during 2021–2023

Previously published research indicated that predation by piscivorous colonial waterbirds in the Upper Klamath Basin was a source of mortality for Lost River suckers (Deltistes luxatus) and Shortnose suckers (Chasmistes brevirostris), including mortality of Sucker Assisted Rearing Program (SARP) fish. Avian predation on recently released Chinook Salmon (Oncorhynchus tshawytscha) in the...
Authors
Nathan B Banet, Quinn Payton, Allen F. Evans, Rachael Katelyn Paul-Wilson, Jacob Richard Krause, Brian Hayes, Erin Marie Benham
By
Ecosystems Mission Area, Western Fisheries Research Center

Distribution of bull trout (Salvelinus confluentus) in conjunction with habitat and trout assemblages in creeks within the Klamath Basin, Oregon 2010–16

Bull trout (Salvelinus confluentus) in the Klamath Basin are on the southernmost border of the range of the species, where threats are most severe and where bull trout are most imperiled. In their recovery plan the U.S. Fish and Wildlife Service (2015, https://ecos.fws.gov/ecp/report/species-with-recovery-plans) suggested that Klamath Basin bull trout are at increased risk of extirpation...
Authors
Barbara A. Martin, Nolan P. Banish, David A. Hewitt, Brian Hayes, Amari Dolan-Caret, Alta Harris, Caylen M. Kelsey
By
Ecosystems Mission Area, Species Management Research Program, Western Fisheries Research Center, Klamath Falls Field Station (KFFS)

Water and endangered fish in the Klamath River Basin: Do Upper Klamath Lake surface elevation and water quality affect adult Lost River and Shortnose Sucker survival?

In the western United States, water allocation decisions often incorporate the needs of endangered fish. In the Klamath River basin, an understanding of temporal variation in annual survival rates of Shortnose Suckers Chasmistes brevirostris and Lost River Suckers Deltistes luxatus and their relation to environmental drivers is critical to water management and sucker recovery. Extinction...
Authors
Jacob Richard Krause, Eric Janney, Summer M. Burdick, Alta Harris, Brian Hayes
By
Ecosystems Mission Area, Western Fisheries Research Center, Klamath Falls Field Station (KFFS)

Dynamics of endangered sucker populations in Clear Lake Reservoir, California

Executive SummaryIn collaboration with the Bureau of Reclamation, the U.S. Geological Survey began a consistent monitoring program for endangered Lost River suckers (Deltistes luxatus) and shortnose suckers (Chasmistes brevirostris) in Clear Lake Reservoir, California, in fall 2004. The program was intended to improve understanding of the Clear Lake Reservoir populations because they are...
Authors
David A. Hewitt, Brian Hayes, Alta Harris, Eric Janney, Caylen M. Kelsey, Russell Perry, Summer M. Burdick
By
Ecosystems Mission Area, Species Management Research Program, Western Fisheries Research Center, Columbia River Research Laboratory (CRRL), Klamath Falls Field Station (KFFS)

Examination of movements and survival of Pahranagat roundtail chub (Gila robusta jordani) in the Pahranagat River and adjacent waters, Nevada, 2014–18

Executive SummaryThe Pahranagat roundtail chub (Gila robusta jordani; hereinafter “chub”) was federally listed as endangered in 1970 (U.S. Fish and Wildlife Service, 1970). In the decades following the listing, the chub has declined to extremely low numbers (Tuttle and others, 1990; Guadalupe, 2014). Loss of available habitat appears to be one of the main reasons for the decline of this...
Authors
Barbara A. Martin, Brian Hayes, Alta Harris
By
Ecosystems Mission Area, Species Management Research Program, Western Fisheries Research Center, Klamath Falls Field Station (KFFS)

Status and trends of adult Lost River (Deltistes luxatus) and shortnose (Chasmistes brevirostris) sucker populations in Upper Klamath Lake, Oregon, 2017

Executive SummaryData from a long-term capture-recapture program were used to assess the status and dynamics of populations of two long-lived, federally endangered catostomids in Upper Klamath Lake, Oregon. Lost River suckers (LRS; Deltistes luxatus) and shortnose suckers (SNS; Chasmistes brevirostris) have been captured and tagged with passive integrated transponder (PIT) tags during...
Authors
David A. Hewitt, Eric Janney, Brian Hayes, Alta Harris
By
Ecosystems Mission Area, Species Management Research Program, Western Fisheries Research Center, Klamath Falls Field Station (KFFS)

Status and trends of adult Lost River (Deltistes luxatus) and shortnose (Chasmistes brevirostris) sucker populations in Upper Klamath Lake, Oregon, 2015

Executive SummaryData from a long-term capture-recapture program were used to assess the status and dynamics of populations of two long-lived, federally endangered catostomids in Upper Klamath Lake, Oregon. Lost River suckers (LRS; Deltistes luxatus) and shortnose suckers (SNS; Chasmistes brevirostris) have been captured and tagged with passive integrated transponder (PIT) tags during...
Authors
David A. Hewitt, Eric Janney, Brian Hayes, Alta Harris
By
Ecosystems Mission Area, Species Management Research Program, Western Fisheries Research Center, Klamath Falls Field Station (KFFS)

Status and trends of adult Lost River (Deltistes luxatus) and shortnose (Chasmistes brevirostris) sucker populations in Upper Klamath Lake, Oregon, 2014

Executive Summary Data from a long-term capture-recapture program were used to assess the status and dynamics of populations of two long-lived, federally endangered catostomids in Upper Klamath Lake, Oregon. Lost River suckers (Deltistes luxatus) and shortnose suckers (Chasmistes brevirostris) have been captured and tagged with passive integrated transponder (PIT) tags during their...
Authors
David A. Hewitt, Eric Janney, Brian Hayes, Alta Harris
By
Ecosystems Mission Area, Western Fisheries Research Center, Klamath Falls Field Station (KFFS)

Demographics and run timing of adult Lost River (Deltistes luxatus) and short nose (Chasmistes brevirostris) suckers in Upper Klamath Lake, Oregon, 2012

Data from a long-term capture-recapture program were used to assess the status and dynamics of populations of two long-lived, federally endangered catostomids in Upper Klamath Lake, Oregon. Lost River suckers (Deltistes luxatus) and shortnose suckers (Chasmistes brevirostris) have been captured and tagged with passive integrated transponder (PIT) tags during their spawning migrations in...
Authors
David A. Hewitt, Eric Janney, Brian Hayes, Alta Harris
By
Ecosystems Mission Area, Western Fisheries Research Center, Klamath Falls Field Station (KFFS)

Monitoring of adult Lost River and shortnose suckers in Clear Lake Reservoir, California, 2008–2010

Executive Summary In collaboration with the Bureau of Reclamation, the U.S. Geological Survey began a consistent monitoring program for endangered Lost River suckers (Deltistes luxatus) and shortnose suckers (Chasmistes brevirostris) in Clear Lake Reservoir, California, in the fall of 2004. The program was intended to develop a more complete understanding of the Clear Lake Reservoir...
Authors
David A. Hewitt, Brian Hayes
By
Ecosystems Mission Area, Western Fisheries Research Center, Klamath Falls Field Station (KFFS)

Demographics and run timing of adult Lost River (Deltistes luxatus) and shortnose (Chasmistes brevirostris) suckers in Upper Klamath Lake, Oregon, 2011

Executive Summary Data from a long-term capture-recapture program were used to assess the status and dynamics of populations of two long-lived, federally endangered catostomids in Upper Klamath Lake, Oregon. Lost River suckers (Deltistes luxatus) and shortnose suckers (Chasmistes brevirostris) have been captured and tagged with passive integrated transponder (PIT) tags during their...
Authors
David A. Hewitt, Eric Janney, Brian Hayes, Alta Harris
By
Ecosystems Mission Area, Western Fisheries Research Center, Klamath Falls Field Station (KFFS)

Detection probability of an in-stream passive integrated transponder (PIT) tag detection system for juvenile salmonids in the Klamath River, northern California, 2011

A series of in-stream passive integrated transponder (PIT) detection antennas installed across the Klamath River in August 2010 were tested using tagged fish in the summer of 2011. Six pass-by antennas were constructed and anchored to the bottom of the Klamath River at a site between the Shasta and Scott Rivers. Two of the six antennas malfunctioned during the spring of 2011 and two pass...
Authors
John W. Beeman, Brian Hayes, Wright
By
Ecosystems Mission Area, Western Fisheries Research Center, Columbia River Research Laboratory (CRRL)

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