Article
Biology
Jan Ohlberger, Timothy J. Cline, Daniel E. Schindler, Bert Lewis
Summary: Declining body sizes of Pacific salmon are primarily caused by competition at sea, rather than ocean warming or other ecological factors. Changes in size-at-age were the dominant cause of body size declines. Warm winters were associated with better growth of sockeye salmon, whereas warm summers were associated with reduced growth.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2023)
Review
Oceanography
Skip McKinnell, James R. Irvine
Summary: The study investigated the relationship between ocean indicators and survival rates of certain salmon species, as well as the potential role of primary productivity phenology in explaining variations in marine survival rates. The findings suggested possible correlations but were inconclusive, highlighting the need for further research in this area.
PROGRESS IN OCEANOGRAPHY
(2021)
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
Green & Sustainable Science & Technology
Salvador E. Lluch-Cota, Pablo del Monte-Luna, Helen J. Gurney-Smith
Summary: Climate change necessitates adaptive measures in food production systems, particularly in marine fisheries. Incremental adaptation has proven to be insufficient, thus transformative adaptation offers an opportunity for a timely transition towards climate-resilient conditions. Transformative adaptation in fisheries, taking into account past non climate change-oriented deep transformations and the unique attributes of marine fisheries, should be implemented locally and regionally but designed globally. Two transformational options are proposed: prioritizing food security and adopting a climate-responsive ecosystem approach for fisheries management. Successful adoption hinges on addressing scientific uncertainty, political will, risk perception, regulatory processes, and financial costs through international cooperation, information flow, stewardship mechanisms, and traceable compliance evidence.
CURRENT OPINION IN ENVIRONMENTAL SUSTAINABILITY
(2023)
Article
Oceanography
Kevin M. Archibald, Stephanie Dutkiewicz, Charlotte Laufkotter, Holly Moeller
Summary: Rising ocean temperatures have direct and indirect effects on marine microbial ecosystems, influencing metabolic rates and physical environments. This study isolates the direct effects of temperature on microbial metabolism, examining the consequences for food web dynamics and global biogeochemistry. Results show increased productivity but decreased biomass stocks with higher temperatures, and higher temperature sensitivity of heterotrophs amplifies these effects. Understanding these thermal responses is crucial for climate projections.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2022)
Article
Fisheries
Miguel F. Barajas, Timothy F. Sheehan, Ruth E. Haas-Castro, Brandon Ellingson, Katherine E. Mills
Summary: This study aims to evaluate the relationship between growth during the entire marine stage and marine survival of Atlantic salmon. The results showed that growth of Penobscot River Atlantic salmon decreased during the second winter and second marine year starting in the 1990s, but compensatory growth relationships were observed. This indicates that diminished growth during late marine stages is associated with low return rates in this population.
CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES
(2022)
Article
Multidisciplinary Sciences
Shelby L. Ziegler, Jasmin M. Johnson, Rachel O. Brooks, Erin M. Johnston, Jacklyn L. Mohay, Benjamin I. Ruttenberg, Richard M. Starr, Grant T. Waltz, Dean E. Wendt, Scott L. Hamilton
Summary: Anthropogenic stressors from climate change can impact individual species, community structure, and ecosystem function. Marine heatwaves (MHWs), characterized by significantly elevated water temperature for five or more days, are projected to increase in frequency and severity. While marine protected areas (MPAs) may mitigate climate impacts on individual species, their ability to address large-scale changes in marine communities caused by MHWs is uncertain.
SCIENTIFIC REPORTS
(2023)
Article
Environmental Sciences
Kevin D. Friedland, Laura C. Ganley, Donna Dimarchopoulou, Sarah Gaichas, Ryan E. Morse, Adrian Jordaan
Summary: Climate change is impacting the Northeast U.S. Continental Shelf ecosystem, causing changes in species abundance, biomass, and body size. Fisheries do not appear to be a significant factor in these changes. The tropicalization of the ecosystem has implications for human populations and fishing industries.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Review
Geochemistry & Geophysics
Gregory C. Johnson, Shigeki Hosoda, Steven R. Jayne, Peter R. Oke, Stephen C. Riser, Dean Roemmich, Tohsio Suga, Virginie Thierry, Susan E. Wijffels, Jianping Xu
Summary: Argo, an international network of nearly 4,000 autonomous robotic profiling floats, has revolutionized physical oceanography. After two decades, Argo data have supported thousands of scientific publications and improved real-time forecasts and projections.
ANNUAL REVIEW OF MARINE SCIENCE
(2022)
Review
Environmental Sciences
Baskaran Abirami, Manikkam Radhakrishnan, Subramanian Kumaran, Aruni Wilson
Summary: Global warming has various effects on ocean ecosystems, including temperature, acidification, oxygen content, circulation, stratification, and nutrient inputs, posing a serious threat to the metabolism and distribution of marine microbes and affecting the overall ecosystem functioning.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Meteorology & Atmospheric Sciences
Gabriel Jorda, Javier Soto-Navarro
Summary: In this study, the performance of a statistical forecasting system for marine-litter concentration in the Mediterranean Sea is explored. The system is based on the analogues method and uses a historical database of simulated marine-litter concentration. Different approaches have been tested to improve the system and the results show that integral definitions for the similarity function based on the history of meteorological situations improve the system's performance. The system has potential to become a cost-effective forecasting method for marine-litter concentration.
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)
Editorial Material
Multidisciplinary Sciences
Markus G. Donat
Summary: Climate models provide accurate forecasts of warm ocean temperatures, which can guide decision-making in marine industries and conservation efforts. These models can predict seasonal anomalies in ocean temperatures.
Review
Geochemistry & Geophysics
Kathryn E. Smith, Michael T. Burrows, Alistair J. Hobday, Nathan G. King, Pippa J. Moore, Alex Sen Gupta, Mads S. Thomsen, Thomas Wernberg, Dan A. Smale
Summary: Climatic extremes, particularly marine heatwaves (MHWs), have become more frequent and intense due to global warming, impacting the integrity of marine ecosystems. This review explores the impacts of MHWs on individual, population, and community levels, as well as the broader ecosystem services. It also discusses current research on biological impacts, approaches to predicting and adapting to future events.
ANNUAL REVIEW OF MARINE SCIENCE
(2023)
Article
Engineering, Environmental
Nuohan Xu, Danyan Qiu, Zhenyan Zhang, Yan Wang, Bingfeng Chen, Qi Zhang, Tingzhang Wang, Wenjie Hong, Ning-Yi Zhou, Josep Penuelas, Michael Gillings, Yong-Guan Zhu, Haifeng Qian
Summary: Oceans contain a large amount of antibiotic-resistant bacteria and antibiotic resistance genes (ARGs), but their traits and expression in response to environmental factors are not well understood. This study analyzed metagenomes and metatranscriptomes and found that the distribution and abundance of ARGs vary with latitude and depth. The core marine resistome mainly confers glycopeptide and multidrug resistance. Anthropogenic activity may affect the expression of ARGs by altering environmental factors. Machine-learning models predict that the expression of marine ARGs will change significantly in the future. Certain ARGs play a dual role in antibiotic resistance and element cycling. Comprehensive understanding of their functions is necessary to determine whether changes in ARG expression are beneficial or harmful.