Article
Engineering, Marine
Clara Mendoza-Segura, Emilio Fernandez, Pedro Beca-Carretero
Summary: Global change has facilitated the introduction of new species in marine ecosystems. This study used species distribution models to investigate the factors affecting the distribution of G. vermiculophylla globally. The results highlighted temperature and salinity as the main variables determining the presence of this species. Furthermore, predictions based on different climate scenarios showed a potential expansion in the distribution range of G. vermiculophylla, with the high-emission scenario indicating a significant loss in its southern range and potential establishment in arctic latitudes.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Article
Fisheries
Zander Chila, Karen M. Dunmall, Tracey A. Proverbs, Trevor C. Lantz
Summary: Rapid climate change is significantly impacting Arctic ecosystems and the livelihoods of Indigenous peoples. This project examines the effects of climate change on Pacific salmon in the Inuvialuit Settlement Region. Using interviews and voluntary harvest data, researchers found an increase in salmon harvest in recent years attributed to regional environmental change. Concerns were raised about the negative impacts of salmon on cultural traditions and preferred fish species. This study emphasizes the importance of researching Arctic salmon and their potential influence on freshwater ecosystems.
CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES
(2022)
Article
Engineering, Marine
Andrey Pnyushkov, Genrikh Alekseev, Alexander Smirnov
Summary: We investigated the freshwater content in the upper layer of the Arctic Ocean from 1990 to 2018 and found two opposite tendencies in freshwater balance. The Canada Basin experienced freshening while the eastern Eurasian Basin showed salinization. Over the studied period, the Arctic Ocean gained additional freshwater. The changes in freshwater content were concurrent with changes in the thermohaline properties of the intermediate Atlantic Water. The study also revealed a positive feedback mechanism linking freshwater content with vertical heat and salt exchange in the eastern Eurasian Basin.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Environmental Sciences
Sarah M. Laske, Samantha M. Burke, Michael P. Carey, Heidi K. Swanson, Christian E. Zimmerman
Summary: The amount of mercury in Arctic lake food webs is affected by climate change, as fish require more energy to sustain growth. This leads to changes in metabolic rates and prey consumption, potentially increasing mercury accumulation. The study examines the implications of climate warming on forage fish mercury accumulation using bioenergetics models and finds that growth and mercury accumulation are largely dependent on diet. The models show the complex interaction of temperature, growth, prey proportions, and prey mercury concentrations in response to climate change.
ENVIRONMENTAL RESEARCH
(2023)
Article
Geosciences, Multidisciplinary
Daniele Tonina, James A. McKean, Daniel Isaak, Rohan M. Benjankar, Chunling Tang, Qiuwen Chen
Summary: Climate change threatens biodiversity, particularly the habitats of cold-water fishes like Chinook salmon. The decline in summer flow caused by climate change leads to reductions in habitat area and connectivity for these fishes, posing risks to population abundance and persistence.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Multidisciplinary Sciences
Brandon Chasco, Brian Burke, Lisa Crozier, Rich Zabel
Summary: Large-scale atmospheric conditions in the Northeast Pacific Ocean affect freshwater and marine environments in specific regions, ultimately impacting the survival rates of migrating species like salmonids. Understanding the correlations between habitats is crucial for predicting and managing the survival of salmon populations in changing environmental conditions.
Article
Fisheries
Nico Alioravainen, Panu Orell, Jaakko Erkinaro
Summary: This study analyzed the data collected from samples of Atlantic salmon in Finland and Norway and found that the rapid warming of the Northern hemisphere has different effects on the growth rates of Atlantic salmon in freshwater and in the ocean. The growth rate in freshwater has decreased, and spending more time in freshwater before migrating to the sea affects the growth. On the other hand, mature returning salmon in the ocean showed increased growth with increasing marine temperatures, resulting in larger sizes at return.
Article
Fisheries
Robert J. Lennox, Henrik H. Berntsen, Ase Helen Garseth, Scott G. Hinch, Kjetil Hindar, Ola Ugedal, Kjell R. Utne, Knut Wiik Vollset, Frederick G. Whoriskey, Eva B. Thorstad
Summary: While other migratory salmonids are declining, pink salmon are thriving and spreading in the Anthropocene, with their distribution expanding beyond their natural range. The introduction of pink salmon to the White Sea in the 1950s has led to their rapid spread in Europe and even across the ocean to North America. The impacts of this species' introduction are potentially significant for native species and watershed productivity, and further research is urgently needed to understand its role and future impacts in Atlantic ecosystems.
FISH AND FISHERIES
(2023)
Article
Geosciences, Multidisciplinary
Rongrong Pan, Qi Shu, Qiang Wang, Shizhu Wang, Zhenya Song, Yan He, Fangli Qiao
Summary: An analysis of CMIP6 simulations reveals that certain climate models project more severe Arctic climate change compared to others, involving variations in sea ice, ocean mixed layer, air-sea heat flux, and surface air temperature in wintertime. Interestingly, these models utilize the same ocean model family (NEMO), while the choice of models differs for the atmosphere and sea ice. The magnitude of Arctic climate change is influenced by the strength of poleward ocean heat transport, which is notably higher in this particular group of models. Establishing the plausibility of these high Arctic climate sensitivity models to anthropogenic forcing is essential due to the potential consequences.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Geosciences, Multidisciplinary
S. M. Niklasson, M. Veneziani, C. A. Rowe, P. F. Worcester, M. A. Dzieciuch, S. L. Bilek, S. F. Price, A. F. Roberts
Summary: The hydroacoustic environment in the rapidly warming Arctic Ocean is affected by changes in the physical environment and increased human activity. It is necessary to update previous acoustic calculations to reflect current and future conditions. Earth System Models are important for projecting changes in physical processes under future climates. We compare Arctic acoustic travel times based on the Energy Exascale Earth System Model, measured travel times from the Canada Basin Acoustic Propagation Experiment, and travel times predicted by empirical temperature and salinity observations, in order to test the impact of changes in Arctic sound speed profiles on acoustic travel times and connect Arctic hydroacoustics with the changing Arctic environment as described by a climate model.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Environmental Sciences
Emma L. L. Hoffman, Bulusu Subrahmanyam, Corinne B. B. Trott, Sarah B. B. Hall
Summary: Freshwater content (FWC) in the Arctic Ocean has changed in quantity and distribution, driven by changes in freshwater sources and major currents. This study analyzed FWC variability from 1993 to 2021 using observations, ocean models, and reanalysis products. Models underestimated FWC in the Beaufort Gyre, but correlated well with observations. ORAS5 showed the best agreement with salinity data. Comparisons between models and observations identified discrepancies and highlighted areas for improvement in understanding Arctic FWC. These products are crucial for studying the dynamic and vulnerable Arctic Ocean.
Article
Meteorology & Atmospheric Sciences
Hyung-Gyu Lim, Jong-Yeon Park, John P. Dunne, Charles A. Stock, Sung-Ho Kang, Jong-Seong Kug
Summary: This study demonstrates that anthropogenic nitrogen fluxes have exacerbated Arctic warming and sea ice loss through physical-biological feedback mechanisms. The strongest impacts were observed in the Eurasian shelf seas, where surface temperatures increased by 12% and sea ice concentrations decreased by 17% due to increased nitrogen fluxes.
JOURNAL OF CLIMATE
(2021)
Article
Ecology
Robert William Henry, Scott A. Shaffer, Michelle Antolos, Maria Felix-Lizarraga, David G. Foley, Elliott L. Hazen, Yann Tremblay, Daniel P. Costa, Bernie R. Tershy, Donald A. Croll
Summary: The study revealed significant effects of the breeding range expansion of Laysan albatrosses on their foraging ecology, leading to the formation of distinct at-sea segregation and differences in foraging behavior in different oceanographic habitats. Birds from the new Eastern Pacific colony showed reduced foraging trip lengths and durations compared to those from the Central Pacific, resulting in significantly higher reproductive output and population growth rates.
FRONTIERS IN ECOLOGY AND EVOLUTION
(2021)
Article
Geosciences, Multidisciplinary
Shizhu Wang, Qiang Wang, Qi Shu, Zhenya Song, Gerrit Lohmann, Sergey Danilov, Fangli Qiao
Summary: The freshwater storage capability of the Arctic Ocean varies nonmonotonically with sea ice decline, leading to accumulation of freshwater in the Amerasian Basin and reduction in Eurasian and Amerasian basins. The increase in river runoff modulates the balance between these two effects.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Meteorology & Atmospheric Sciences
Hui Li, Alexey Fedorov, Wei Liu
Summary: This study compares the impacts of Arctic sea ice decline on the Atlantic meridional overturning circulation (AMOC) in two different configurations of the Community Earth System Model. The results show that in the lower-resolution configuration, the AMOC weakens gradually and approaches a new equilibrium, while in the higher-resolution configuration, the AMOC fully recovers after an initial weakening, driven by deep water formation in the Labrador Sea and adjacent regions.
JOURNAL OF CLIMATE
(2021)
Article
Geochemistry & Geophysics
Sean R. Brennan, Diego P. Fernandez, Christian E. Zimmerman, Thure E. Cerling, Randy J. Brown, Matthew J. Wooller
GEOCHIMICA ET COSMOCHIMICA ACTA
(2015)
Article
Marine & Freshwater Biology
Vanessa R. von Biela, Gordon H. Kruse, Franz J. Mueter, Bryan A. Black, David C. Douglas, Thomas E. Helser, Christian E. Zimmerman
Article
Environmental Sciences
Carson A. Baughman, Benjamin M. Jones, Krista K. Bartz, Daniel B. Young, Christian E. Zimmerman
Article
Fisheries
Karen M. Dunmall, Neil J. Mochnacz, Christian E. Zimmerman, Charles Lean, James D. Reist
CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES
(2016)
Article
Marine & Freshwater Biology
Vanessa R. von Biela, Seth D. Newsome, James L. Bodkin, Gordon H. Kruse, Christian E. Zimmerman
ESTUARINE COASTAL AND SHELF SCIENCE
(2016)
Article
Ecology
Sarah M. Laske, Trevor B. Haynes, Amanda E. Rosenberger, Joshua C. Koch, Mark S. Wipfli, Matthew Whitman, Christian E. Zimmerman
FRESHWATER BIOLOGY
(2016)
Article
Fisheries
Vanessa R. von Biela, Christian E. Zimmerman, Gordon H. Kruse, Franz J. Mueter, Bryan A. Black, David C. Douglas, James L. Bodkin
MARINE AND COASTAL FISHERIES
(2016)
Article
Fisheries
Michael P. Carey, Christian E. Zimmerman, Kevin D. Keith, Merlyn Schelske, Charlie Lean, David C. Douglas
TRANSACTIONS OF THE AMERICAN FISHERIES SOCIETY
(2017)
Article
Ecology
Sarah M. Laske, Amanda E. Rosenberger, William J. Kane, Mark S. Wipfli, Christian E. Zimmerman
FRESHWATER SCIENCE
(2017)
Article
Ecology
Sarah M. Laske, Amanda E. Rosenberger, William J. Kane, Mark S. Wipfli, Christian E. Zimmerman
FRESHWATER SCIENCE
(2017)
Article
Fisheries
Sarah M. Laske, Amanda E. Rosenberger, Mark S. Wipfli, Christian E. Zimmerman
ECOLOGY OF FRESHWATER FISH
(2018)
Article
Biodiversity Conservation
Sean E. Burril, Vanessa R. von Biela, Nicola Hillgruber, Christian E. Zimmerman
Correction
Environmental Sciences
S. M. Burke, C. E. Zimmerman, B. A. Branfireun, J. C. Koch, H. K. Swanson
Article
Fisheries
Michael P. Carey, Kevin D. Keith, Merlyn Schelske, Charlie Lean, Stephen D. McCormick, Amy Regish, Christian E. Zimmerman
TRANSACTIONS OF THE AMERICAN FISHERIES SOCIETY
(2019)
Article
Environmental Sciences
S. M. Burke, C. E. Zimmerman, B. A. Branfireun, J. C. Koch, H. K. Swanson