Beaver lodge and drained impoundment in tributary of the Noatak River, Noatak National Preserve
Michael P Carey, Ph.D.
Community ecology of fish, Food web dynamics, Anthropogenic impacts on biodiversity and ecosystem function, Invasive species
My research program seeks to better understand the role of ecological processes in shaping fish distribution and population characteristics, habitat requirements of fish, and evolutionary adaptations of aquatic organisms in response to environmental gradients. Specifically, I focus on three drivers of fish communities and populations: (1) aquatic thermal regimes, (2) Arctic landscapes dynamics, and (3) invasive species.
Currently, we lack a robust understanding of how these processes influence fish communities in high-latitude ecosystems for which information is critical to inform management and policy decisions due to a rapidly changing landscape from natural and human pressures. To understand processes that influence fish communities in Arctic and Subarctic ecosystems, my research program combines field monitoring, large-scale comparative studies, simulation modeling, and experiments at multiple spatial and temporal scales and results of these studies are used to guide conservation, protection, and management of fish and fish habitats throughout the North Pacific Rim and Alaska.
Professional Experience
2012 - Present Research Fishery Biologist, USGS, Alaska Science Center, Anchorage, Alaska
2009 - 2012 Research Associate of the National Research Council, NOAA Fisheries,
Northwest Fisheries Science Center, Seattle, WA2003 - 2009 Research Assistant, Illinois Natural History Survey
1999 - 2002 Research Assistant, Massachusetts Cooperative Fish and Wildlife Research
Unit USGS-BRD, University of Massachusetts, Amherst, MA1998 Fisheries Technician, U.S. Forest Service, Payette National Forest,
Council, ID1996-1997 Biological Technician, Trout Lake Field Station, Northern Temperate Lakes
LTER, Boulder Junction, WI1996 NSF Research experience for Undergraduates fellowship, Trout Lake Field Station,
North Temperate Lakes LTER, Boulder Junction, WI
Education and Certifications
Ph.D. 2009 University of Illinois at Urbana-Champaign Ecology, Evolution, and Conservation
BiologyM.S. 2002 University of Massachusetts-Amherst Wildlife and Fisheries Conservation
B.S. 1997 University of Wisconsin-Madison Zoology
Affiliations and Memberships*
American Fisheries Society
Ecological Society of America, Aquatic Section
Science and Products
Sockeye Salmon (Oncorhynchus nerka) Body Condition and Water Temperature Along the Pilgrim River, Northwestern Alaska, 2013-2016
Carbon Isotope Concentrations in Stream Food Webs of the Arctic Network National Parks, Alaska, 2014-2016
Count of Sockeye Salmon (Oncorhynchus nerka), River Temperature, and River Height in the Pilgrim River, Nome, Alaska, 2003-2014
Beaver lodge and drained impoundment in tributary of the Noatak River, Noatak National Preserve
Impounded water above beaver dam on the Wrench Creek, Noatak National Preserve
Impounded water above beaver dam on the Wrench Creek, Noatak National Preserve
Beaver dam and lodge on the Ahaliknak Creek, Noatak National Preserve
Beaver dam and lodge on the Ahaliknak Creek, Noatak National Preserve
Impacts of iron mobilization in a stream tributary of the Akillik River located in Kobuk Valley National Park, Alaska. These images were taken two years apart. The clear picture was taken in June 2016 and the orange picture was August 2018.
Impacts of iron mobilization in a stream tributary of the Akillik River located in Kobuk Valley National Park, Alaska. These images were taken two years apart. The clear picture was taken in June 2016 and the orange picture was August 2018.
Two scientists in kayaks next to a floating limnocorral on McKinley Lake, near Cordova, Alaska for Elodea spp. experiment. This experiment is studying the effect of the invasive species Elodea spp. on aquatic ecosystems. Disclaimer statement: Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S.
Two scientists in kayaks next to a floating limnocorral on McKinley Lake, near Cordova, Alaska for Elodea spp. experiment. This experiment is studying the effect of the invasive species Elodea spp. on aquatic ecosystems. Disclaimer statement: Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S.
USGS and NPS scientists measuring discharge and collecting water chemistry in small tributary to the Cutler River in the early summer. This work is part of the Hydro-Ecology of Arctic Thawing (HEAT): Hydrology project that takes place in the Arctic Netwo
USGS and NPS scientists measuring discharge and collecting water chemistry in small tributary to the Cutler River in the early summer. This work is part of the Hydro-Ecology of Arctic Thawing (HEAT): Hydrology project that takes place in the Arctic Netwo
Sampling the Imelyak River in the Boreal-Arctic transition of the Brooks Range in Noatak National Park and Preserve, Kobuk Valley National Park. This is part of the Hydro-Ecology of Arctic Thawing (HEAT) project.
Sampling the Imelyak River in the Boreal-Arctic transition of the Brooks Range in Noatak National Park and Preserve, Kobuk Valley National Park. This is part of the Hydro-Ecology of Arctic Thawing (HEAT) project.
Sampling a stream from the Akilik River drainage in the Boreal-Arctic transition of the Brooks Range in Noatak National Park and Preserve, Kobuk Valley National Park. This is part of the Hydro-Ecoloy of Arctic Thawing (HEAT) project.
Sampling a stream from the Akilik River drainage in the Boreal-Arctic transition of the Brooks Range in Noatak National Park and Preserve, Kobuk Valley National Park. This is part of the Hydro-Ecoloy of Arctic Thawing (HEAT) project.
Small arctic grayling hugging the bottom in the Imelyak River in the Brooks Range. This is part of the Hydro-Ecoloy of Arctic Thawing (HEAT) project.
Small arctic grayling hugging the bottom in the Imelyak River in the Brooks Range. This is part of the Hydro-Ecoloy of Arctic Thawing (HEAT) project.
Limnocorral on McKinley Lake, near Cordova, Alaska for Elodea spp. experiment. This experiment is studying the effect of the invasive species Elodea spp. on aquatic ecosystems. Disclaimer statement: Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Limnocorral on McKinley Lake, near Cordova, Alaska for Elodea spp. experiment. This experiment is studying the effect of the invasive species Elodea spp. on aquatic ecosystems. Disclaimer statement: Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Two limnocorrals on McKinley Lake, near Cordova, Alaska for Elodea spp. experiment. This experiment is studying the effect of the invasive species Elodea spp. on aquatic ecosystems. Disclaimer statement: Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Two limnocorrals on McKinley Lake, near Cordova, Alaska for Elodea spp. experiment. This experiment is studying the effect of the invasive species Elodea spp. on aquatic ecosystems. Disclaimer statement: Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
USGS and US Forest Service scientists deploying limnocorrals at McKinley Lake, near Cordova, Alaska for Elodea spp. experiment. This experiment is studying the effect of the invasive species Elodea spp.
USGS and US Forest Service scientists deploying limnocorrals at McKinley Lake, near Cordova, Alaska for Elodea spp. experiment. This experiment is studying the effect of the invasive species Elodea spp.
Bedrock peaks in the Agashashok River Watershed
Bedrock peaks in the Agashashok River Watershed
Chris Zimmerman sampling a stream in the drainage of the Agashashok River which is in the Boreal-Arctic transition of the Brooks Range in Noatak National Park and Preserve, Kobuk Valley National Park. This is part of the Hydro-Ecoloy of Arctic Thawing (HEAT) project.
Chris Zimmerman sampling a stream in the drainage of the Agashashok River which is in the Boreal-Arctic transition of the Brooks Range in Noatak National Park and Preserve, Kobuk Valley National Park. This is part of the Hydro-Ecoloy of Arctic Thawing (HEAT) project.
A stream type at the Boreal-Arctic transition of the Brooks Range, Noatak National Park and Preserve, Kobuk Valley National Park. The stream is part of the Agashashok River watershed. This is part of the Hydro-Ecoloy of Arctic Thawing (HEAT) project.
A stream type at the Boreal-Arctic transition of the Brooks Range, Noatak National Park and Preserve, Kobuk Valley National Park. The stream is part of the Agashashok River watershed. This is part of the Hydro-Ecoloy of Arctic Thawing (HEAT) project.
A stream type at the Boreal-Arctic transition of the Brooks Range, Noatak National Park and Preserve, Kobuk Valley National Park. This stream is in the Agashashok River watershed. This is part of the Hydro-Ecoloy of Arctic Thawing (HEAT) project.
A stream type at the Boreal-Arctic transition of the Brooks Range, Noatak National Park and Preserve, Kobuk Valley National Park. This stream is in the Agashashok River watershed. This is part of the Hydro-Ecoloy of Arctic Thawing (HEAT) project.
Scientists assemble limnocorral at McKinley Lake, near Cordova, Alaska for Elodea spp. experiment. This experiment is studying the effect of the invasive species Elodea spp. on aquatic ecosystems. Disclaimer statement: Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Scientists assemble limnocorral at McKinley Lake, near Cordova, Alaska for Elodea spp. experiment. This experiment is studying the effect of the invasive species Elodea spp. on aquatic ecosystems. Disclaimer statement: Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Constructing a limnocorral at McKinley Lake for Elodea spp. experiment. This experiment is studying the effect of the invasive species Elodea spp. on aquatic ecosystems.
Constructing a limnocorral at McKinley Lake for Elodea spp. experiment. This experiment is studying the effect of the invasive species Elodea spp. on aquatic ecosystems.
Deployment of a limnocorral at McKinley Lake, near Cordova, Alaska for Elodea spp. experiment. This experiment is studying the effect of the invasive species Elodea spp. on aquatic ecosystems.
Deployment of a limnocorral at McKinley Lake, near Cordova, Alaska for Elodea spp. experiment. This experiment is studying the effect of the invasive species Elodea spp. on aquatic ecosystems.
A completed limnocorral positioned over a bed of Elodea spp.. This experiment is studying the effect of the invasive species Elodea spp. on aquatic ecosystems.
A completed limnocorral positioned over a bed of Elodea spp.. This experiment is studying the effect of the invasive species Elodea spp. on aquatic ecosystems.
Dolly Varden in a minnow trap in the Agashashok River drainage. This is part of the Hydro-Ecoloy of Arctic Thawing (HEAT) project.
Dolly Varden in a minnow trap in the Agashashok River drainage. This is part of the Hydro-Ecoloy of Arctic Thawing (HEAT) project.
Transcriptomic response to elevated water temperatures in adult migrating Yukon River Chinook salmon (Oncorhynchus tshawytscha)
Evidence of prevalent heat stress in Yukon River Chinook salmon
Permafrost hydrology drives the assimilation of old carbon by stream food webs in the Arctic
Energy depletion and stress levels of Sockeye Salmon migrating at the northern edge of their distribution
Rapid response for invasive waterweeds at the arctic invasion front: Assessment of collateral impacts from herbicide treatments
Migration trends of Sockeye Salmon at the northern edge of their distribution
Potential effects of permafrost thaw on arctic river ecosystems
A primer on potential impacts, management priorities, and future directions for Elodea spp. in high latitude systems: learning from the Alaskan experience
Physiological and ecological effects of increasing temperature on fish production in lakes of Arctic Alaska
Effects of littoral habitat complexity and sunfish composition on fish production
Identifying across‐system sources of variation in a generalist freshwater fish: Correlates of total and size‐specific abundance of yellow perch
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
- Science
- Data
Filter Total Items: 15
Sockeye Salmon (Oncorhynchus nerka) Body Condition and Water Temperature Along the Pilgrim River, Northwestern Alaska, 2013-2016
This data set is four spreadsheets with: 1) the body condition and egg counts of Sockeye Salmon captured at several sites along the Pilgrim River 2013-2016, 2) water temperature from 10 automated temperature dataloggers during the summers of 2013-2016, 3) results from an experiment to determine the effect of elevated water temperature on levels of Heat Shock Protein (HSP70) in captive juvenile SocCarbon Isotope Concentrations in Stream Food Webs of the Arctic Network National Parks, Alaska, 2014-2016
This dataset includes information on the carbon samples that were collected from organic and mineral soils, streams, algae, invertebrates, and fish in the Arctic Network Parks. Carbon cycling in the Arctic is likely influenced by permafrost, which impacts hydrology and the movement of solutes including carbon between soils and stream ecosystems. These samples were collected in order to understaCount of Sockeye Salmon (Oncorhynchus nerka), River Temperature, and River Height in the Pilgrim River, Nome, Alaska, 2003-2014
The dataset is the daily count of Sockeye Salmon (Oncorhynchus nerka) passing through a fish counting weir on the Pilgrim River from 2003 to 2014. Also, included in the data set is the daily temperature and river height measured at the weir (65.103071°, -164.824046°).The fish weir was operated during the summer (late June to mid-September) by the Norton Sound Economic Development Corporation. - Multimedia
Filter Total Items: 49Beaver lodge and drained impoundment in tributary of the Noatak RiverBeaver lodge and drained impoundment in tributary of the Noatak River
Beaver lodge and drained impoundment in tributary of the Noatak River, Noatak National Preserve
Beaver lodge and drained impoundment in tributary of the Noatak River, Noatak National Preserve
Impounded water above beaver dam on the Wrench CreekImpounded water above beaver dam on the Wrench CreekImpounded water above beaver dam on the Wrench Creek, Noatak National Preserve
Impounded water above beaver dam on the Wrench Creek, Noatak National Preserve
Beaver dam and lodge on the Ahaliknak Creek, Noatak National PreserveBeaver dam and lodge on the Ahaliknak Creek, Noatak National PreserveBeaver dam and lodge on the Ahaliknak Creek, Noatak National Preserve
Beaver dam and lodge on the Ahaliknak Creek, Noatak National Preserve
Impacts of iron mobilization in a streamImpacts of iron mobilization in a stream tributary of the Akillik River located in Kobuk Valley National Park, Alaska. These images were taken two years apart. The clear picture was taken in June 2016 and the orange picture was August 2018.
Impacts of iron mobilization in a stream tributary of the Akillik River located in Kobuk Valley National Park, Alaska. These images were taken two years apart. The clear picture was taken in June 2016 and the orange picture was August 2018.
Scientists in kayaks next to floating limnocorralTwo scientists in kayaks next to a floating limnocorral on McKinley Lake, near Cordova, Alaska for Elodea spp. experiment. This experiment is studying the effect of the invasive species Elodea spp. on aquatic ecosystems. Disclaimer statement: Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S.
Two scientists in kayaks next to a floating limnocorral on McKinley Lake, near Cordova, Alaska for Elodea spp. experiment. This experiment is studying the effect of the invasive species Elodea spp. on aquatic ecosystems. Disclaimer statement: Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S.
Scientists measuring discharge and collecting water chemistry samplesScientists measuring discharge and collecting water chemistry samplesUSGS and NPS scientists measuring discharge and collecting water chemistry in small tributary to the Cutler River in the early summer. This work is part of the Hydro-Ecology of Arctic Thawing (HEAT): Hydrology project that takes place in the Arctic Netwo
USGS and NPS scientists measuring discharge and collecting water chemistry in small tributary to the Cutler River in the early summer. This work is part of the Hydro-Ecology of Arctic Thawing (HEAT): Hydrology project that takes place in the Arctic Netwo
Sampling the Imelyak River in the Brooks RangeSampling the Imelyak River in the Boreal-Arctic transition of the Brooks Range in Noatak National Park and Preserve, Kobuk Valley National Park. This is part of the Hydro-Ecology of Arctic Thawing (HEAT) project.
Sampling the Imelyak River in the Boreal-Arctic transition of the Brooks Range in Noatak National Park and Preserve, Kobuk Valley National Park. This is part of the Hydro-Ecology of Arctic Thawing (HEAT) project.
Sampling a stream from the Akilik River drainageSampling a stream from the Akilik River drainage in the Boreal-Arctic transition of the Brooks Range in Noatak National Park and Preserve, Kobuk Valley National Park. This is part of the Hydro-Ecoloy of Arctic Thawing (HEAT) project.
Sampling a stream from the Akilik River drainage in the Boreal-Arctic transition of the Brooks Range in Noatak National Park and Preserve, Kobuk Valley National Park. This is part of the Hydro-Ecoloy of Arctic Thawing (HEAT) project.
Small arctic grayling in the Imelyak River, Brooks RangeSmall arctic grayling in the Imelyak River, Brooks RangeSmall arctic grayling hugging the bottom in the Imelyak River in the Brooks Range. This is part of the Hydro-Ecoloy of Arctic Thawing (HEAT) project.
Small arctic grayling hugging the bottom in the Imelyak River in the Brooks Range. This is part of the Hydro-Ecoloy of Arctic Thawing (HEAT) project.
Limnocorral on McKinley LakeLimnocorral on McKinley Lake, near Cordova, Alaska for Elodea spp. experiment. This experiment is studying the effect of the invasive species Elodea spp. on aquatic ecosystems. Disclaimer statement: Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Limnocorral on McKinley Lake, near Cordova, Alaska for Elodea spp. experiment. This experiment is studying the effect of the invasive species Elodea spp. on aquatic ecosystems. Disclaimer statement: Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Two limnocorrals on McKinley LakeTwo limnocorrals on McKinley Lake, near Cordova, Alaska for Elodea spp. experiment. This experiment is studying the effect of the invasive species Elodea spp. on aquatic ecosystems. Disclaimer statement: Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Two limnocorrals on McKinley Lake, near Cordova, Alaska for Elodea spp. experiment. This experiment is studying the effect of the invasive species Elodea spp. on aquatic ecosystems. Disclaimer statement: Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Scientists setting up limnocorrals on McKinley Lake, AlaskaScientists setting up limnocorrals on McKinley Lake, AlaskaUSGS and US Forest Service scientists deploying limnocorrals at McKinley Lake, near Cordova, Alaska for Elodea spp. experiment. This experiment is studying the effect of the invasive species Elodea spp.
USGS and US Forest Service scientists deploying limnocorrals at McKinley Lake, near Cordova, Alaska for Elodea spp. experiment. This experiment is studying the effect of the invasive species Elodea spp.
Bedrock peaks in the Agashashok River WatershedBedrock peaks in the Agashashok River Watershed
Bedrock peaks in the Agashashok River Watershed
Scientist sampling a stream in the drainage of the Agashashok RiverScientist sampling a stream in the drainage of the Agashashok RiverChris Zimmerman sampling a stream in the drainage of the Agashashok River which is in the Boreal-Arctic transition of the Brooks Range in Noatak National Park and Preserve, Kobuk Valley National Park. This is part of the Hydro-Ecoloy of Arctic Thawing (HEAT) project.
Chris Zimmerman sampling a stream in the drainage of the Agashashok River which is in the Boreal-Arctic transition of the Brooks Range in Noatak National Park and Preserve, Kobuk Valley National Park. This is part of the Hydro-Ecoloy of Arctic Thawing (HEAT) project.
An aerial view of a stream in the Agashashok River watershedAn aerial view of a stream in the Agashashok River watershedA stream type at the Boreal-Arctic transition of the Brooks Range, Noatak National Park and Preserve, Kobuk Valley National Park. The stream is part of the Agashashok River watershed. This is part of the Hydro-Ecoloy of Arctic Thawing (HEAT) project.
A stream type at the Boreal-Arctic transition of the Brooks Range, Noatak National Park and Preserve, Kobuk Valley National Park. The stream is part of the Agashashok River watershed. This is part of the Hydro-Ecoloy of Arctic Thawing (HEAT) project.
A stream in the Agashashok River watershedA stream type at the Boreal-Arctic transition of the Brooks Range, Noatak National Park and Preserve, Kobuk Valley National Park. This stream is in the Agashashok River watershed. This is part of the Hydro-Ecoloy of Arctic Thawing (HEAT) project.
A stream type at the Boreal-Arctic transition of the Brooks Range, Noatak National Park and Preserve, Kobuk Valley National Park. This stream is in the Agashashok River watershed. This is part of the Hydro-Ecoloy of Arctic Thawing (HEAT) project.
Scientists assemble limnocorralScientists assemble limnocorral at McKinley Lake, near Cordova, Alaska for Elodea spp. experiment. This experiment is studying the effect of the invasive species Elodea spp. on aquatic ecosystems. Disclaimer statement: Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Scientists assemble limnocorral at McKinley Lake, near Cordova, Alaska for Elodea spp. experiment. This experiment is studying the effect of the invasive species Elodea spp. on aquatic ecosystems. Disclaimer statement: Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Constructing a limnocorral at McKinley LakeConstructing a limnocorral at McKinley Lake for Elodea spp. experiment. This experiment is studying the effect of the invasive species Elodea spp. on aquatic ecosystems.
Constructing a limnocorral at McKinley Lake for Elodea spp. experiment. This experiment is studying the effect of the invasive species Elodea spp. on aquatic ecosystems.
Deploying of a limnocorral at McKinley LakeDeployment of a limnocorral at McKinley Lake, near Cordova, Alaska for Elodea spp. experiment. This experiment is studying the effect of the invasive species Elodea spp. on aquatic ecosystems.
Deployment of a limnocorral at McKinley Lake, near Cordova, Alaska for Elodea spp. experiment. This experiment is studying the effect of the invasive species Elodea spp. on aquatic ecosystems.
Deployment of a limnocorral in McKinley LakeA completed limnocorral positioned over a bed of Elodea spp.. This experiment is studying the effect of the invasive species Elodea spp. on aquatic ecosystems.
A completed limnocorral positioned over a bed of Elodea spp.. This experiment is studying the effect of the invasive species Elodea spp. on aquatic ecosystems.
Dolly Varden in a minnow trap in the Agashashok River drainageDolly Varden in a minnow trap in the Agashashok River drainageDolly Varden in a minnow trap in the Agashashok River drainage. This is part of the Hydro-Ecoloy of Arctic Thawing (HEAT) project.
Dolly Varden in a minnow trap in the Agashashok River drainage. This is part of the Hydro-Ecoloy of Arctic Thawing (HEAT) project.
- Publications
Filter Total Items: 23
Transcriptomic response to elevated water temperatures in adult migrating Yukon River Chinook salmon (Oncorhynchus tshawytscha)
Chinook salmon (Oncorhynchus tshawytscha) declines are widespread and may be attributed, at least in part, to warming river temperatures. Water temperatures in the Yukon River and tributaries often exceed 18°C, a threshold commonly associated with heat stress and elevated mortality in Pacific salmon. Untangling the complex web of direct and indirect physiological effects of heat stress on salmon iAuthorsLizabeth Bowen, Vanessa R. von Biela, Stephen D. McCormick, Amy M. Regish, Shannon C. Waters, Blythe Durbin-Johnson, Monica Britton, Matt Settles, Daniel S. Donnelly, Sarah M. Laske, Michael P. Carey, Randy J Brown, Christian E. ZimmermanEvidence of prevalent heat stress in Yukon River Chinook salmon
Migrating adult Pacific salmon (Oncorhynchus spp.) are sensitive to warm water (>18 °C), with a range of consequences from decreased spawning success to early mortality. We examined the proportion of Yukon River Chinook salmon (O. tshawytscha) exhibiting evidence of heat stress to assess the potential that high temperatures contribute to freshwater adult mortality in a northern Pacific salmon popuAuthorsVanessa R. von Biela, Lizabeth Bowen, Stephen D. McCormick, Michael P. Carey, Daniel S. Donnelly, Shannon C. Waters, Amy M. Regish, Sarah M. Laske, Randy J Brown, Sean Larson, Stan Zuray, Christian E. ZimmermanPermafrost hydrology drives the assimilation of old carbon by stream food webs in the Arctic
Permafrost thaw in the Arctic is mobilizing old carbon (C) from soils to aquatic ecosystems and the atmosphere. Little is known, however, about the assimilation of old C by aquatic food webs in Arctic watersheds. Here, we used C isotopes (δ13C, Δ14C) to quantify C assimilation by biota across 12 streams in arctic Alaska. Streams spanned watersheds with varying permafrost hydrology, from ice-poor bAuthorsJonathon A O'Donnell, Michael P. Carey, Joshua C. Koch, Xiaomei Xu, Brett Poulin, Jennifer Walker, Christian E. ZimmermanEnergy depletion and stress levels of Sockeye Salmon migrating at the northern edge of their distribution
The physiological challenge for anadromous fish to migrate upriver is influenced by river temperature, but the impacts of river temperature can be difficult to predict due to an incomplete understanding of how temperature influences migration costs, especially in high‐latitude (>60°N) ecosystems. To assess temperature influences on migrating Pacific salmon Oncorhynchus spp., we measured heat shockAuthorsMichael P. Carey, Kevin D. Keith, Merlyn Schelske, Charlie Lean, Stephen D. McCormick, Amy M. Regish, Christian E. ZimmermanRapid response for invasive waterweeds at the arctic invasion front: Assessment of collateral impacts from herbicide treatments
The remoteness of subarctic and arctic ecosystems no longer protects against invasive species introductions. Rather, the mix of urban hubs surrounded by undeveloped expanses creates a ratchet process whereby anthropogenic activity is sufficient to introduce and spread invaders, but for which the costs of monitoring and managing remote ecosystems is prohibitive. Elodea spp. is the first aquatic invAuthorsSuresh Sethi, Michael P. Carey, John M. Morton, Edgar Guerron-Orejuela, Robert Decino, Mark Willette, James Boersma, Jillian Jablonski, Cheryl AndersonMigration trends of Sockeye Salmon at the northern edge of their distribution
Climate change is affecting arctic and subarctic ecosystems, and anadromous fish such as Pacific salmon Oncorhynchus spp. are particularly susceptible due to the physiological challenge of spawning migrations. Predicting how migratory timing will change under Arctic warming scenarios requires an understanding of how environmental factors drive salmon migrations. Multiple mechanisms exist by whichAuthorsMichael P. Carey, Christian E. Zimmerman, Kevin D. Keith, Merlyn Schelske, Charles Lean, David C. DouglasPotential effects of permafrost thaw on arctic river ecosystems
No abstract available.AuthorsJonathan A. O'Donnell, Christian E. Zimmerman, Michael P. Carey, Joshua C. KochA primer on potential impacts, management priorities, and future directions for Elodea spp. in high latitude systems: learning from the Alaskan experience
Invasive species introductions in Arctic and Subarctic ecosystems are growing as climate change manifests and human activity increases in high latitudes. The aquatic plants of the genus Elodea are potential invaders to Arctic and Subarctic ecosystems circumpolar and at least one species is already established in Alaska, USA. To illustrate the problems of preventing, eradicating, containing, and miAuthorsMichael P. Carey, Suresh A Sethi, Sabrina J Larsen, Cecil F RichPhysiological and ecological effects of increasing temperature on fish production in lakes of Arctic Alaska
Lake ecosystems in the Arctic are changing rapidly due to climate warming. Lakes are sensitive integrators of climate-induced changes and prominent features across the Arctic landscape, especially in lowland permafrost regions such as the Arctic Coastal Plain of Alaska. Despite many studies on the implications of climate warming, how fish populations will respond to lake changes is uncertain for AAuthorsMichael P. Carey, Christian E. ZimmermanEffects of littoral habitat complexity and sunfish composition on fish production
Habitat complexity is a key driver of food web dynamics because physical structure dictates resource availability to a community. Changes in fish diversity can also alter trophic interactions and energy pathways in food webs. Few studies have examined the direct, indirect, and interactive effects of biodiversity and habitat complexity on fish production. We explored the effects of habitat complexiAuthorsMichael P. Carey, K.O. Maloney, S. R. Chipps, David H. WahlIdentifying across‐system sources of variation in a generalist freshwater fish: Correlates of total and size‐specific abundance of yellow perch
Variation in fish abundance across systems presents a challenge to our understanding of fish populations because it limits our ability to predict and transfer basic ecological principles to applied problems. Yellow perch (Perca flavescens) is an ideal species for exploring environmental and biotic correlates across system because it is widely distributed and physiologically tolerant. In 16 small,AuthorsMichael P. Carey, M. E. MatherNon-USGS Publications**
Carey, M.P., P.S. Levin, H. Townsend, T.J. Minello, G.R. Sutton, T.B. Francis, C.J. Harvey, J.E. Toft, K. K. Arkema, J.L. Burke, C.K. Kim, A.D. Guerry, M. Plummer, G. Spiridonov, and M. Ruckelshaus. 2014. Characterizing coastal food webs with qualitative links to bridge the gap between the theory and practice of ecosystem based management. ICES Journal of Marine Science: 71 (3): 713-724. doi: 10.1093/icesjms/fst012.Toft, J. E., J. L. Burke, M. P. Carey, C. K. Kim, G. Spiridonov, M. Marsik, D. A. Sutherland, K. K. Arkema, A. D. Guerry, P. S. Levin, T. J. Minello, M. Plummer, M. H. Ruckelshaus and H. M. Townsend. 2014. From mountains to sound: Modelling the sensitivity of Dungeness crab and Pacific oyster to land-sea interactions in Hood Canal, WA. ICES Journal of Marine Science: 71 (3): 725-738. doi: 10.1093/icesjms/fst072.Carey, M.P., B.L. Sanderson, K.A. Barnas, and J.D. Olden. 2012. Native invaders – challenges for science, management, policy, and society. Frontiers in Ecology and the Environment. 10(7): 373–381. doi:10.1890/110060Carey, M.P., B.L. Sanderson, T.A. Friesen, K.A. Barnas, and J.D. Olden. 2011. Smallmouth Bass in the Pacific Northwest: A Threat to Native Species, a Benefit for Anglers. Reviews in Fisheries Science 19(3): 305-315. doi:10.1080/10641262.2011.598584Carey, M.P. and D. H. Wahl. 2011. Foraging modes of predators and behaviors of prey determine the outcome of multiple predator interactions. Transactions of the American Fisheries Society 140: 1015-1022. doi:10.1080/00028487.2011.603983Vanlandeghem, M., M.P. Carey, and D.H. Wahl. 2011. Turbidity-induced changes in emergent effects of multiple predators with different foraging strategies. Ecology of Freshwater 20: 279–286. doi:10.1111/j.1600-0633.2011.00494.xCarey, M.P. and D. H. Wahl. 2011. Fish diversity as a determinant of ecosystem properties across multiple trophic levels. Oikos 120: 84–94. doi:10.1111/j.1600-0706.2010.18352.xCarey, M. P. and D. H. Wahl. 2011. Determining the mechanism by which fish diversity influences production. Oecologia 167:189-198. doi:10.1007/s00442-011-1967-3Carey, M. P. and D. H. Wahl. 2010. Native fish diversity alters the effects of an invasive species on food webs. Ecology 91(10):2965-2974. doi:10.1890/09-1213.1Carey, M.P., and M.E. Mather. 2008. Tracking change in a human-dominated landscape: developing conservation guidelines using freshwater fish. Aquatic Conservation: Marine and Freshwater Ecosystems 18: 877-890.Hrabik, T.R., M. P. Carey, and M.S. Webster. 2001. Interactions between Young-of-the-Year Exotic Rainbow Smelt and Native Yellow Perch in a Northern Temperate Lake. Transactions of the American Fisheries Society. 130: 568-582. doi:10.1577/1548-8659(2001)130<0568:IBYOTY>2.0.CO;2**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
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*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government