Brock Huntsman
Brock Huntsman - California Water Science Center
Science and Products
Santa Ana River Native Fish Population and Habitat Data, Santa Ana River, California, 2022 Santa Ana River Native Fish Population and Habitat Data, Santa Ana River, California, 2022
This dataset includes 2022 reach fish data and reach habitat data collected to support development of the upper Santa Ana River Habitat Conservation Plan for the Santa Ana Sucker (Catostomus santaanae) and the Arroyo Chub (Gila orcutti) in the Santa Ana River, California.
Distribution and stomach contents of fishes in the northern Sacramento-San Joaquin Delta, 2020-2022 Distribution and stomach contents of fishes in the northern Sacramento-San Joaquin Delta, 2020-2022
This data set includes count, location, and ancillary habitat data for fishes sampled in adjacent reaches of Georgiana Slough, Sacramento River, and Steamboat Slough in the northern Sacramento-San Joaquin Delta. It also includes data on the stomach contents of selected individual black basses (Micropterus). Fishes were sampled by boat electrofishing from approximately January-May, 2020...
Detection range and efficiency of acoustic telemetry receivers in Clear Lake, Lake County, California Detection range and efficiency of acoustic telemetry receivers in Clear Lake, Lake County, California
Data on the detection range and efficiency of VR2W-69 kHz acoustic receivers (Innovasea Marine Systems Canada Inc., Bedford, Nova Scotia, Canada; https://www.vemco.com/) were collected to guide the development of telemetry studies of the Clear Lake Hitch (Lavinia exilicauda chi), an imperiled fish species endemic to Clear Lake, Lake County, California. The study took place June 21, 2021...
Data used in projected air and water temperatures for selected regions of the upper San Francisco Estuary and Yolo Bypass under 20 scenarios of climate change 2020-2099 Data used in projected air and water temperatures for selected regions of the upper San Francisco Estuary and Yolo Bypass under 20 scenarios of climate change 2020-2099
Understanding the effects of climate change is a substantial challenge in estuarine systems because the mixing of freshwater and ocean water adds complexity to climate change projections. Such climate change projections have been conducted in the San Francisco Estuary as part of the U.S. Geological Survey's CASCaDE Project. In this project, we assessed downscaled air temperature data...
Santa Ana River Native Fish Population and Habitat Data, Santa Ana River, California, 2020 Santa Ana River Native Fish Population and Habitat Data, Santa Ana River, California, 2020
This dataset includes 2020 reach fish data and reach habitat data collected to support development of the upper Santa Ana River Habitat Conservation Plan for the Santa Ana Sucker (Catostomus santaanae) and the Arroyo Chub (Gila orcutti) in the Santa Ana River, California.
Largemouth bass population assessment within flooded islands of the Sacramento-San Joaquin Delta Largemouth bass population assessment within flooded islands of the Sacramento-San Joaquin Delta
Field and laboratory data collected for fishes sampled by boat electrofishing in the Sacramento-San Joaquin delta, CA. This data release includes all measured environmental parameters, body composition analyses, otoliths, and fish taxa included in the analysis.
Filter Total Items: 24
Physics to fish—Understanding the factors that create and sustain native fish habitat in the San Francisco Estuary Physics to fish—Understanding the factors that create and sustain native fish habitat in the San Francisco Estuary
Executive Summary The Bureau of Reclamation (Reclamation) operates the Central Valley Project (CVP), one of the nation’s largest water projects. Reclamation has an ongoing need to improve the scientific basis for adaptive management of the CVP and, by extension, joint operations with California’s State Water Project. The U.S. Geological Survey (USGS) works cooperatively with the Bureau...
Authors
Larry R. Brown, David E. Ayers, Brian A. Bergamaschi, Jon R. Burau, Evan T. Dailey, Bryan D. Downing, Maureen A. Downing-Kunz, Frederick V. Feyrer, Brock M. Huntsman, Tamara E. C. Kraus, Tara Morgan, Jessica R. Lacy, Francis Parchaso, Catherine A. Ruhl, Elizabeth B. Stumpner, Paul Stumpner, Janet Thompson, Matthew J. Young
Microhabitat use of native Santa Ana sucker and arroyo chub in an effluent-dominated southern California stream Microhabitat use of native Santa Ana sucker and arroyo chub in an effluent-dominated southern California stream
A significant amount of the base flow of the Santa Ana River, located within California's arid Los Angeles metropolitan region, originates from two wastewater treatment facilities: the Rialto wastewater treatment facility and Rapid Infiltration and Extraction facility. The Santa Ana sucker (Pantosteus santaanae, syn. Catostomus santaanae) and arroyo chub (Gila orcuttii) are two native...
Authors
Brock Huntsman, Larry R. Brown, Jason May, Kai Palenscar, Kerwin Russell, Heather Dyer, Marissa L. Wulff, Brett Mills, Chris Jones
Hydrodynamics and habitat interact to structure fish communities within terminal channels of a tidal freshwater delta Hydrodynamics and habitat interact to structure fish communities within terminal channels of a tidal freshwater delta
Terminal channels were historically a common feature of tidal delta ecosystems but have become increasingly rare as landscapes have been modified. Tidal hydrodynamics are a defining feature in tidal terminal channel ecosystems from which native aquatic communities have evolved. However, few studies have explored the relationship between fish community structure and hydrodynamics in these...
Authors
Brock Huntsman, Matthew J. Young, Frederick V. Feyrer, Paul Stumpner, Larry R. Brown, Jon R. Burau
Density effects on native and non-native trout survival in streams Density effects on native and non-native trout survival in streams
Environmental stressors associated with a changing climate and non-native fish, individually, represent significant threats to native fish conservation. These threats can exacerbate risks to native fishes when conditions interact at the trailing edge of a population's distribution. We collected capture–mark–recapture data for Rio Grande cutthroat trout (RGCT, Oncorhynchus clarkii...
Authors
Brock M. Huntsman, Lauren Flynn, Colleen A. Caldwell, Abigail Lynch, Fitsum Abadi
Joint-species analysis reveals potential displacement of native fishes by non-native fishes within the Santa Ana River, California Joint-species analysis reveals potential displacement of native fishes by non-native fishes within the Santa Ana River, California
Accurate estimates of abundance are a cornerstone for resource managers to make effective decisions for fish conservation. However, multiple sampling methods often are required to sample fish communities, and ignoring the detection process can create substantial bias in latent state parameter estimation (e.g., abundance, survival). We developed a joint-species N-mixture model that...
Authors
Brock Huntsman, Larry R. Brown, Kai Palenscar, Chris Jones, Kerwin Russell, Heather Dyer, Brett Mills, Marissa L. Wulff, Jason May
Relative bias in catch among long-term fish monitoring surveys within the San Francisco Estuary Relative bias in catch among long-term fish monitoring surveys within the San Francisco Estuary
Fish monitoring gears rarely capture all available fish, an inherent bias in monitoring programs referred to as catchability. Catchability is a source of bias that can be affected by numerous aspects of gear deployment (e.g., deployment speed, mesh size, and avoidance behavior). Thus, care must be taken when multiple surveys—especially those using different sampling methods—are combined...
Authors
Brock Huntsman, Brian Mahardja, Samuel M. Bashevkin
Science and Products
Santa Ana River Native Fish Population and Habitat Data, Santa Ana River, California, 2022 Santa Ana River Native Fish Population and Habitat Data, Santa Ana River, California, 2022
This dataset includes 2022 reach fish data and reach habitat data collected to support development of the upper Santa Ana River Habitat Conservation Plan for the Santa Ana Sucker (Catostomus santaanae) and the Arroyo Chub (Gila orcutti) in the Santa Ana River, California.
Distribution and stomach contents of fishes in the northern Sacramento-San Joaquin Delta, 2020-2022 Distribution and stomach contents of fishes in the northern Sacramento-San Joaquin Delta, 2020-2022
This data set includes count, location, and ancillary habitat data for fishes sampled in adjacent reaches of Georgiana Slough, Sacramento River, and Steamboat Slough in the northern Sacramento-San Joaquin Delta. It also includes data on the stomach contents of selected individual black basses (Micropterus). Fishes were sampled by boat electrofishing from approximately January-May, 2020...
Detection range and efficiency of acoustic telemetry receivers in Clear Lake, Lake County, California Detection range and efficiency of acoustic telemetry receivers in Clear Lake, Lake County, California
Data on the detection range and efficiency of VR2W-69 kHz acoustic receivers (Innovasea Marine Systems Canada Inc., Bedford, Nova Scotia, Canada; https://www.vemco.com/) were collected to guide the development of telemetry studies of the Clear Lake Hitch (Lavinia exilicauda chi), an imperiled fish species endemic to Clear Lake, Lake County, California. The study took place June 21, 2021...
Data used in projected air and water temperatures for selected regions of the upper San Francisco Estuary and Yolo Bypass under 20 scenarios of climate change 2020-2099 Data used in projected air and water temperatures for selected regions of the upper San Francisco Estuary and Yolo Bypass under 20 scenarios of climate change 2020-2099
Understanding the effects of climate change is a substantial challenge in estuarine systems because the mixing of freshwater and ocean water adds complexity to climate change projections. Such climate change projections have been conducted in the San Francisco Estuary as part of the U.S. Geological Survey's CASCaDE Project. In this project, we assessed downscaled air temperature data...
Santa Ana River Native Fish Population and Habitat Data, Santa Ana River, California, 2020 Santa Ana River Native Fish Population and Habitat Data, Santa Ana River, California, 2020
This dataset includes 2020 reach fish data and reach habitat data collected to support development of the upper Santa Ana River Habitat Conservation Plan for the Santa Ana Sucker (Catostomus santaanae) and the Arroyo Chub (Gila orcutti) in the Santa Ana River, California.
Largemouth bass population assessment within flooded islands of the Sacramento-San Joaquin Delta Largemouth bass population assessment within flooded islands of the Sacramento-San Joaquin Delta
Field and laboratory data collected for fishes sampled by boat electrofishing in the Sacramento-San Joaquin delta, CA. This data release includes all measured environmental parameters, body composition analyses, otoliths, and fish taxa included in the analysis.
Filter Total Items: 24
Physics to fish—Understanding the factors that create and sustain native fish habitat in the San Francisco Estuary Physics to fish—Understanding the factors that create and sustain native fish habitat in the San Francisco Estuary
Executive Summary The Bureau of Reclamation (Reclamation) operates the Central Valley Project (CVP), one of the nation’s largest water projects. Reclamation has an ongoing need to improve the scientific basis for adaptive management of the CVP and, by extension, joint operations with California’s State Water Project. The U.S. Geological Survey (USGS) works cooperatively with the Bureau...
Authors
Larry R. Brown, David E. Ayers, Brian A. Bergamaschi, Jon R. Burau, Evan T. Dailey, Bryan D. Downing, Maureen A. Downing-Kunz, Frederick V. Feyrer, Brock M. Huntsman, Tamara E. C. Kraus, Tara Morgan, Jessica R. Lacy, Francis Parchaso, Catherine A. Ruhl, Elizabeth B. Stumpner, Paul Stumpner, Janet Thompson, Matthew J. Young
Microhabitat use of native Santa Ana sucker and arroyo chub in an effluent-dominated southern California stream Microhabitat use of native Santa Ana sucker and arroyo chub in an effluent-dominated southern California stream
A significant amount of the base flow of the Santa Ana River, located within California's arid Los Angeles metropolitan region, originates from two wastewater treatment facilities: the Rialto wastewater treatment facility and Rapid Infiltration and Extraction facility. The Santa Ana sucker (Pantosteus santaanae, syn. Catostomus santaanae) and arroyo chub (Gila orcuttii) are two native...
Authors
Brock Huntsman, Larry R. Brown, Jason May, Kai Palenscar, Kerwin Russell, Heather Dyer, Marissa L. Wulff, Brett Mills, Chris Jones
Hydrodynamics and habitat interact to structure fish communities within terminal channels of a tidal freshwater delta Hydrodynamics and habitat interact to structure fish communities within terminal channels of a tidal freshwater delta
Terminal channels were historically a common feature of tidal delta ecosystems but have become increasingly rare as landscapes have been modified. Tidal hydrodynamics are a defining feature in tidal terminal channel ecosystems from which native aquatic communities have evolved. However, few studies have explored the relationship between fish community structure and hydrodynamics in these...
Authors
Brock Huntsman, Matthew J. Young, Frederick V. Feyrer, Paul Stumpner, Larry R. Brown, Jon R. Burau
Density effects on native and non-native trout survival in streams Density effects on native and non-native trout survival in streams
Environmental stressors associated with a changing climate and non-native fish, individually, represent significant threats to native fish conservation. These threats can exacerbate risks to native fishes when conditions interact at the trailing edge of a population's distribution. We collected capture–mark–recapture data for Rio Grande cutthroat trout (RGCT, Oncorhynchus clarkii...
Authors
Brock M. Huntsman, Lauren Flynn, Colleen A. Caldwell, Abigail Lynch, Fitsum Abadi
Joint-species analysis reveals potential displacement of native fishes by non-native fishes within the Santa Ana River, California Joint-species analysis reveals potential displacement of native fishes by non-native fishes within the Santa Ana River, California
Accurate estimates of abundance are a cornerstone for resource managers to make effective decisions for fish conservation. However, multiple sampling methods often are required to sample fish communities, and ignoring the detection process can create substantial bias in latent state parameter estimation (e.g., abundance, survival). We developed a joint-species N-mixture model that...
Authors
Brock Huntsman, Larry R. Brown, Kai Palenscar, Chris Jones, Kerwin Russell, Heather Dyer, Brett Mills, Marissa L. Wulff, Jason May
Relative bias in catch among long-term fish monitoring surveys within the San Francisco Estuary Relative bias in catch among long-term fish monitoring surveys within the San Francisco Estuary
Fish monitoring gears rarely capture all available fish, an inherent bias in monitoring programs referred to as catchability. Catchability is a source of bias that can be affected by numerous aspects of gear deployment (e.g., deployment speed, mesh size, and avoidance behavior). Thus, care must be taken when multiple surveys—especially those using different sampling methods—are combined...
Authors
Brock Huntsman, Brian Mahardja, Samuel M. Bashevkin