Article
Biodiversity Conservation
Kelia E. E. Axler, Esther D. D. Goldstein, Jens M. M. Nielsen, Alison L. L. Deary, Janet T. T. Duffy-Anderson
Summary: The Pacific Arctic marine ecosystem has experienced significant changes in recent years due to global warming, sea ice melting and increased transportation of Pacific-origin waters into the Arctic region. These changes have impacted the distribution and abundance of larval fish populations in the northern Bering Sea and Chukchi Sea. The study found that the warming and loss of sea ice have led to shifts in fish assemblages, with boreal species expanding northward and Arctic species retreating poleward.
GLOBAL CHANGE BIOLOGY
(2023)
Review
Engineering, Marine
Igor M. M. Belkin, Jeffrey W. W. Short
Summary: This article reviews the physical and biological manifestations of a large-scale water temperature anomaly called "The Blob" that emerged in the Northeast Pacific in late 2013. The Blob persisted through 2014-2016 and showed signs of reemergence in 2019. Advection by currents played a role in its movement across the Northeast Pacific. The Blob had significant impacts on the ecosystem of the Bering Sea, affecting primary production, zooplankton, invertebrates, fishes, seabirds, and marine mammals. Recovery of the Bering Sea ecosystem is uncertain, with possibilities of irreversible changes or hysteresis recovery.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Article
Ecology
Florian Orgeret, Andrea Thiebault, Kit M. Kovacs, Christian Lydersen, Mark A. Hindell, Sarah Ann Thompson, William J. Sydeman, Pierre A. Pistorius
Summary: Understanding the impacts of climate change on marine predators is crucial for biodiversity conservation. Longer study durations were associated with higher likelihood of concluding climate change impacts, with varying temporal thresholds for discernible effects. Species with narrow thermal ranges and longer generation times were more likely to be affected by climate change, highlighting the need for region-specific assessments.
Article
Engineering, Civil
K. S. Carvalho, T. E. Smith, S. Wang
Summary: The Bering Sea's MHW frequency and duration have been increasing, showing no significant connection with Chukchi Sea ice concentration and Arctic Oscillation, but a positive correlation with Chukchi Sea temperature and Alaskan air temperature. The past decade saw the highest values for MHW frequency and duration.
JOURNAL OF HYDROLOGY
(2021)
Article
Environmental Sciences
Kashawn Hall, Alton Daley, Shanice Whitehall, Sanola Sandiford, Chelle L. Gentemann
Summary: This study utilized saildrone uncrewed surface vehicles to validate satellite and model salinity data in the Western Tropical Atlantic and found fine-scale salinity variability that was not captured by the satellite and model products. These findings will aid in the improvement of numerical weather prediction and climate models.
Review
Agriculture, Dairy & Animal Science
Peter J. Walker, Laurent Bigarre, Gael Kurath, Laurent Dacheux, Laurane Pallandre
Summary: The Rhabdoviridae is a family of viruses that includes important pathogens of fish and marine mammals. The taxonomic classification of fish viruses in this family has been recently reviewed and new subfamilies and virus species have been assigned. However, there is a taxonomic conundrum regarding the classification of fish rhabdoviruses in the genus Novirhabdovirus within the family Rhabdoviridae.
Article
Environmental Sciences
Kjell Rong Utne, Oystein Skagseth, Vidar Wennevik, Cecilie Thorsen Broms, Webjorn Melle, Eva B. Thorstad
Summary: In recent decades, the decline of wild Atlantic salmon populations has become a major concern. This study investigates the potential impact of reduced prey abundance on the growth and survival of post-smolt salmon. By analyzing stomach content data from over 2,500 post-smolt salmon sampled over a 25-year period in the Northeast Atlantic Ocean, the researchers found that changes in the diet composition and stomach fullness of the salmon were influenced by the spatial and temporal variations in prey abundance. Certain prey species like sandeel larvae, herring larvae, and amphipods were identified as particularly important for the post-smolt salmon. The reduction of fish larvae in the post-smolt stomachs over a large area suggests a potential bottom-up process where the increasing extent of Arctic Water masses and zooplankton abundance positively influences the stomach fullness of post-smolt salmon in the Norwegian Sea. Additionally, the competition for fish larvae between post-smolts and mackerel might have intensified due to the expansion of mackerel feeding migrations northwards since 2007.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Biodiversity Conservation
K. M. MacKenzie, C. Lydersen, T. Haug, H. Routti, J. Aars, C. M. Andvik, K. Borga, A. T. Fisk, S. Meier, M. Biuw, A. D. Lowther, U. Lindstrom, K. M. Kovacs
Summary: The Arctic is warming rapidly, posing a threat to marine mammals and their ecosystem. The study of stable isotopes and trophic webs reveals clear separation in trophic behavior and carbon sources among different species, indicating significant niche partitioning. This could have implications for the structure and connectivity of the Arctic ecosystem.
ECOLOGICAL INDICATORS
(2022)
Article
Biodiversity Conservation
Irene D. Alabia, Jorge Garcia Molinos, Takafumi Hirata, Franz J. Mueter, Toru Hirawake, Sei-Ichi Saitoh
Summary: This study examined the diversity patterns and geographically distinct refugia zones in the subarctic shelf of the Eastern Bering Sea, highlighting the significant impact of winter sea ice concentration on marine biodiversity distributions.
GLOBAL CHANGE BIOLOGY
(2021)
Article
Environmental Sciences
Melissa Rhodes-Reese, David Clay, Curry Cunningham, Janet Moriles-Miller, Cheryl Reese, Joe Roman, Joseph D. Warren, Heidi C. Pearson
Summary: Primary producers are essential for marine ecosystems, and marine mammals and seabirds also play crucial roles in marine nutrient cycling. The marine environment in Southeast Alaska supports abundant populations of marine mammals and seabirds, but there is still limited knowledge about the nutrient sources and fluxes in the region, which is crucial for fisheries management.
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Oceanography
K. A. Kearney, M. Alexander, K. Aydin, W. Cheng, A. J. Hermann, G. Hervieux, I Ortiz
Summary: Research shows that dynamic forecasting can predict summer bottom temperatures across the eastern Bering Sea shelf with lead times of up to 4 months, with the majority of prediction skill deriving from the persistence signal. However, forecast skill of sea ice advance and retreat is low when a forecast model is initialized before or during the ice season.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2021)
Article
Biology
H. William Fennie, Rachel Seary, Barbara A. Muhling, Steven J. Bograd, Stephanie Brodie, Megan A. Cimino, Elliott L. Hazen, Michael G. Jacox, Elizabeth A. McHuron, Sharon Melin, Jarrod A. Santora, Justin J. Suca, Julie A. Thayer, Andrew R. Thompson, Pete Warzybok, Desiree Tommasi
Summary: Forage fishes play a crucial role in transferring energy in the food web. Understanding how they control the dynamics of the ecosystem is essential, especially in the face of climate change. The study focused on northern anchovy, an important forage species in the northeast Pacific, and found that its habitat suitability correlated with the diet and distribution of marine predators. The findings highlight the relevance of species distribution models in ecosystem-based management.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2023)
Article
Biology
Erica Fleishman, Danielle Cholewiak, Douglas Gillespie, Tyler Helble, Holger Klinck, Eva-Marie Nosal, Marie A. Roch
Summary: Monitoring based on sound recordings can provide valuable data for estimating ecological metrics at both individual and community levels in marine ecosystems. However, the reliability and feasibility of passive acoustic monitoring vary depending on various factors, and collaborations between researchers from different fields are crucial to improve the accuracy and applicability of these methods.
BIOLOGICAL REVIEWS
(2023)
Article
Engineering, Marine
Stefania A. Ciliberti, Marilaure Gregoire, Joanna Staneva, Atanas Palazov, Giovanni Coppini, Rita Lecci, Elisaveta Peneva, Marius Matreata, Veselka Marinova, Simona Masina, Nadia Pinardi, Eric Jansen, Leonardo Lima, Ali Aydogdu, Sergio Creti', Laura Stefanizzi, Diana Azevedo, Salvatore Causio, Luc Vandenbulcke, Arthur Capet, Catherine Meulders, Evgeny Ivanov, Arno Behrens, Marcel Ricker, Gerhard Gayer, Francesco Palermo, Mehmet Ilicak, Murat Gunduz, Nadezhda Valcheva, Paola Agostini
Summary: BS-MFC is the European reference service for ocean analyses, forecasts, and reanalyses in the Black Sea basin, utilizing state-of-the-art numerical models to provide accurate predictions and monitoring. Product quality is evaluated through pre-qualification and operational model skills, while continuous innovation in scientific development plans is aimed at improving forecasting capabilities.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2021)
Article
Fisheries
V Warwick-Evans, J. A. Santora, J. J. Waggitt, P. N. Trathan
Summary: The Antarctic Peninsula region is experiencing rapid warming, leading to potential changes in the abundance and distribution of marine predators, specifically seabirds. Seabird distribution is closely associated with sea surface temperature and depth, with broad-scale habitat features playing a significant role in driving distribution patterns. Species distribution models can aid in assessing critical habitats and potential responses to climate change and human disturbances in polar ecosystems.
ICES JOURNAL OF MARINE SCIENCE
(2021)
