Article
Environmental Sciences
Na Li, Yunlin Zhang, Yibo Zhang, Kun Shi, Haiming Qian, Huayin Yang, Yongkang Niu, Boqiang Qin, Guangwei Zhu, Erik Jeppesen, R. Iestyn Woolway
Summary: This study measured the chlorophyll-a content in lakes like Lake Taihu and found that heatwaves have a significant promotion effect on harmful cyanobacteria blooms, leading to the deterioration of water quality.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Geosciences, Multidisciplinary
Natasha Costa, Regina R. Rodrigues
Summary: Based on scenarios from CMIP6, significant positive trends in frequency, duration, and intensity of Marine Heatwaves (MHWs) are identified in the western South Atlantic, potentially leading to a near-permanent state of MHW in the region. The main mechanism causing MHWs, atmospheric blocking, is likely to intensify in the future, emphasizing the urgency for global reduction in greenhouse gas emissions.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Meteorology & Atmospheric Sciences
Hyoeun Oh, Go-Un Kim, Yong Sun Kim, Jae-Heung Park, Chan Joo Jang, Yongchim Min, Hyunjung Jun, Jin-Yong Jeong
Summary: Marine heatwaves (MHWs) are severe climatic events under global warming, causing damage to marine ecosystems and socioeconomic losses. The sea surface temperature (SST) in East Asia has increased significantly, requiring studies to minimize the impact of MHWs.
JOURNAL OF CLIMATE
(2023)
Article
Multidisciplinary Sciences
Ying Zhang, Yan Du, Ming Feng, Alistair J. Hobday
Summary: The study identifies four main types of vertical structures of marine heatwaves using Argo profiles and reveals their spatial distributions. These vertical structures are influenced by ocean dynamical processes and show significant increasing trends in area and depth over the past two decades.
NATURE COMMUNICATIONS
(2023)
Article
Environmental Sciences
Hiroshi Kuroda, Takashi Setou
Summary: In July-August 2021, intense marine heatwaves occurred over extensive areas of the northwestern Pacific Ocean, with the largest extent and intensity since 1982. These heatwaves were mainly generated by atmospheric forcing, starting around July 10 and disappearing by August 18.
Article
Environmental Sciences
Zimeng Su, Gabriela S. Pilo, Stuart Corney, Neil J. Holbrook, Mao Mori, Philippe Ziegler
Summary: Global frequency and intensity of marine heatwaves have been increasing, potentially impacting marine ecosystems and commercial fisheries in the Kerguelen Plateau region. A study found a strong and long-lasting marine heatwave event in the region, with significant correlations with climate variability.
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Oceanography
J. S. Saranya, M. K. Roxy, Panini Dasgupta, Ajay Anand
Summary: This study investigates the genesis and trend of marine heatwaves (MHWs) in the Indian Ocean from 1982 to 2018 and their impact on the Indian summer monsoon. The findings suggest that the rapid warming in the Indian Ocean plays a critical role in increasing the number of MHWs, while El Nino has a prominent influence on their occurrence during the monsoon.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2022)
Article
Environmental Sciences
Yanzhen Du, Ming Feng, Zhenhua Xu, Baoshu Yin, Alistair J. Hobday
Summary: This study explores the evolution and driving factors of summer marine heatwaves (MHWs) in the Kuroshio-Oyashio Extension (KOE) region of the North Pacific. The results indicate that MHWs in 1999, 2008, 2012, and 2016 were primarily driven by air-sea heat flux anomalies, while MHWs in 2018, 2020, and 2021 were mainly influenced by the ocean memory of winter warming. The northward shift of the Kuroshio Extension axis, northward intrusion of anticyclonic eddies, and decadal warming trend may contribute to the occurrence of these summer MHWs.
Article
Oceanography
Yulong Yao, Chunzai Wang, Chao Wang
Summary: Record-breaking marine heatwaves occurred in the western North Pacific in the summer of 2020. These unprecedented events were caused by favorable large-scale conditions associated with anomalous western North Pacific subtropical high and sea surface temperature anomalies across the tropical oceans. The heat budgets and numerical model experiments revealed that surface heat flux and oceanic heat advection were the dominant factors in different regions, while inter-ocean interactions and the zonal sea surface temperature gradient played important roles.
DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY
(2023)
Article
Environmental Sciences
Bayoumy Mohamed, Alexander Barth, Aida Alvera-Azcarate
Summary: This study examines the long-term spatiotemporal trend of marine heatwaves and marine cold spells in the southern North Sea and finds that the warming of sea surface temperature is associated with an increase in heatwave frequency and a decrease in cold spell frequency. In the last two decades, the frequency of heatwaves has been increasing, with notable peaks in 2014, 2020, and 2007. The study highlights the importance of the East Atlantic Pattern and the Atlantic Multidecadal Oscillation in the formation of heatwaves in the southern North Sea.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Environmental Sciences
Eliza Fragkopoulou, Alex Sen Gupta, Mark John Costello, Thomas Wernberg, Miguel B. Araujo, Ester A. Serrao, Olivier De Clerck, Jorge Assis
Summary: This study estimates the intensity and duration of global marine heatwaves (MHWs) and explores the impact of subsurface MHWs on biodiversity. The results show higher intensity of MHWs at subsurface depths and increased duration with depth. Regions with high cumulative intensity overlap with the warm range of species distributions, making them more sensitive to thermal stress.
NATURE CLIMATE CHANGE
(2023)
Article
Geosciences, Multidisciplinary
Vimal Koul, Sebastian Brune, Anna Akimova, Andre Dusterhus, Patrick Pieper, Laura Hovel, Anant Parekh, Corinna Schrum, Johanna Baehr
Summary: Using an Earth System Model, we are able to predict summer marine heatwaves in the Arabian Sea with skill seven months in advance. These predictions outperform those based on observed frequencies and are influenced by medium to strong El Nino conditions during winter initialization.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Review
Oceanography
Di Sun, Zhao Jing, Furong Li, Lixin Wu
Summary: Extreme warm water events known as Marine Heatwaves (MHWs) have adverse impacts on ecosystems and economies. Currently, MHW events are defined based on temperature timeseries at a single location, which limits their characterization of spatial structures. This study extends the definition of MHW events to include their spatial and temporal characteristics, and introduces a set of metrics to measure these characteristics. Applying the new definition to observational sea surface temperature data reveals that MHW events are affected by duration, spatial extent, and intensity, and their frequency and strength have increased due to anthropogenic warming.
PROGRESS IN OCEANOGRAPHY
(2023)
Article
Geosciences, Multidisciplinary
Christina Schallenberg, Robert F. Strzepek, Sophie Bestley, Bozena Wojtasiewicz, Thomas W. Trull
Summary: The ratio between fluorescence and chlorophyll-a varies in the world's oceans, with the highest ratios and variability observed in the Southern Ocean. In addition to species composition and chlorophyll packaging, iron limitation also plays a significant role in influencing this ratio. This study utilized radiometry data from BGC-Argo floats in the Southern Ocean to estimate chlorophyll concentration based on the light attenuation coefficient, revealing a positive correlation between fluorescence/chlorophyll ratio and a proxy for iron limitation.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Oceanography
Yulong Yao, Chunzai Wang
Summary: Marine heatwaves (MHWs) in the South China Sea during summer, especially near the Nansha Islands and Beibu Gulf, have shown a significant increasing trend in the MHW days, duration, and frequency during 1982-2020. This is likely due to the anomalous intensification of the western North Pacific high pressure system causing disruptions in the summer southwest monsoon, leading to severe basin-wide MHWs in the South China Sea.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2021)
Article
Geosciences, Multidisciplinary
Rodrigo Gomez-Fell, Wolfgang Rack, Heather Purdie, Oliver Marsh
Summary: The collapse of the Parker Ice Tongue in March 2020, coinciding with the break-outs of the surrounding sea ice, is an unprecedented event for the stable glacial landmarks along the Victoria Land Coast. The study found a correlation between the collapse and the decrease in sea ice extent and increase in ice tongue velocities. It raises questions about the fate of other ice tongues if land-fast sea ice continues to decrease.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Multidisciplinary Sciences
Mads S. Thomsen, Andrew H. Altieri, Christine Angelini, Melanie J. Bishop, Fabio Bulleri, Roxanne Farhan, Viktoria M. M. Fruhling, Paul E. Gribben, Seamus B. Harrison, Qiang He, Moritz Klinghardt, Joachim Langeneck, Brendan S. Lanham, Luca Mondardini, Yannick Mulders, Semonn Oleksyn, Aaron P. Ramus, David R. Schiel, Tristan Schneider, Alfonso Siciliano, Brian R. Silliman, Dan A. Smale, Paul M. South, Thomas Wernberg, Stacy Zhang, Gerhard Zotz
Summary: Habitat heterogeneity is a primary driver of biodiversity patterns, but its universal role has not been fully understood due to a lack of coordinated experiments. This study conducted 22 experiments to assess the impact of habitat heterogeneity on biodiversity across different ecosystems and regions, and found that positive and additive effects were common across the three axes of heterogeneity. These findings provide mechanistic insights into the importance of habitat heterogeneity in promoting biodiversity through facilitative interactions.
NATURE COMMUNICATIONS
(2022)
Article
Geosciences, Multidisciplinary
Frazer D. W. Christie, Toby J. Benham, Christine L. Batchelor, Wolfgang Rack, Aleksandr Montelli, Julian A. Dowdeswell
Summary: The study finds that 85% of the seaward ice-shelf perimeter along the 1400-km-long eastern Antarctic Peninsula has experienced continuous advance between the early 2000s and 2019, in contrast to the two previous decades. This advance is attributed to enhanced ocean-wave dampening, ice-shelf buttressing, and the absence of sea-surface slope-induced gravitational ice-shelf flow. These phenomena are enabled by increased near-shore sea ice driven by a Weddell Sea-wide intensification of cyclonic surface winds around 2002. The findings demonstrate that sea-ice change can either protect or trigger the final rift and calving of even large Antarctic ice shelves.
Correction
Multidisciplinary Sciences
Mads S. Thomsen, Andrew H. Altieri, Christine Angelini, Melanie J. Bishop, Fabio Bulleri, Roxanne Farhan, Viktoria M. M. Fruhling, Paul E. Gribben, Seamus B. Harrison, Qiang He, Moritz Klinghardt, Joachim Langeneck, Brendan S. Lanham, Luca Mondardini, Yannick Mulders, Semonn Oleksyn, Aaron P. Ramus, David R. Schiel, Tristan Schneider, Alfonso Siciliano, Brian R. Silliman, Dan A. Smale, Paul M. South, Thomas Wernberg, Stacy Zhang, Gerhard Zotz
NATURE COMMUNICATIONS
(2022)
Article
Multidisciplinary Sciences
Francois Thoral, Shinae Montie, Mads S. Thomsen, Leigh W. Tait, Matthew H. Pinkerton, David R. Schiel
Summary: This study analyzed marine heatwaves (MHWs) in 12 major coastal biogeographical realms by considering both biogeographical regions and seasons. The results showed that most regions experienced a significant increase in MHWs, with the majority of change points occurring between 1998 and 2006. This suggests that future, more frequent, and stronger MHWs may have significant impacts on coastal ecosystems.
SCIENTIFIC REPORTS
(2022)
Article
Environmental Sciences
Micaela Pullen, Derek Gerber, Mads Solgaard Thomsen, Sarah P. Flanagan
Summary: Biodiversity is crucial for communities to adapt to changes, and its patterns naturally fluctuate over time. This study investigated the impacts of seasonality, seagrass cover changes, and spatial location on a temperate seagrass bed in New Zealand. The study found that season, seagrass cover, and location explained 88.5% of the variation in community composition. Species abundances and composition changed over seasons.
ESTUARIES AND COASTS
(2022)
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
Oceanography
P. J. Langhorne, C. Haas, D. Price, W. Rack, G. H. Leonard, G. M. Brett, S. Urbini
Summary: This study presents the first inventory of fast ice thickness close to its annual maximum, using a 700 km airborne electromagnetic survey. The results show that rough ice occupies a significant portion and has larger thickness, while the sub-ice platelet layers (SIPLs) are thin in some areas but still have important implications.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2023)
Article
Plant Sciences
Ken Joseph E. Clemente, Mads S. Thomsen
Summary: Many studies have focused on quantifying the ecological impacts of individual foundation species (FS), however, emerging data suggest that the interactions between co-occurring FS can have cascading effects on surrounding communities. This study analyzed manipulative interaction experiments from 148 papers to investigate the impacts of one FS on another, and found consistent negative impacts of seaweeds on angiosperms, while angiosperms and bivalves generally had positive impacts on each other.
JOURNAL OF ECOLOGY
(2023)
Article
Environmental Sciences
Shinae Montie, Mads S. Thomsen
Summary: This study found that the response of epifauna in marine systems to warming is influenced by factors such as vertical elevation, season, hydrodynamics, and habitat age. Furthermore, these epifauna appear to be resilient to small temperature increases. These findings are important for understanding the linkages between primary producers and higher order consumers and for assessing system-wide productivity.
MARINE ENVIRONMENTAL RESEARCH
(2023)
Article
Fisheries
Shinae Montie, Francois Thoral, Robert O. Smith, Felix Cook, Leigh W. Tait, Matthew H. Pinkerton, David R. Schiel, Mads S. Thomsen
Summary: Marine heatwaves (MHWs) have increased in intensity, frequency, and duration worldwide, causing severe impacts on coastal habitats. This study focused on New Zealand's coastline, a region with high biodiversity, and analyzed changes to MHWs across seasons and ecoregions. The findings showed that MHWs have become stronger, longer, and more frequent in coastal New Zealand.
NEW ZEALAND JOURNAL OF MARINE AND FRESHWATER RESEARCH
(2023)
Article
Ecology
Ken Joseph E. Clemente, Mads S. Thomsen, Richard C. Zimmerman
Summary: This study used high-resolution remote sensing and seascape metrics to analyze the spatiotemporal dynamics of intertidal and shallow subtidal seagrass meadows in 20 estuaries in New Zealand. The results showed that the distribution and extent of seagrass meadows varied over time and space, with no clear patterns observed over the 5-year period. However, some estuaries experienced seagrass expansion during periods of higher sea surface temperature.
REMOTE SENSING IN ECOLOGY AND CONSERVATION
(2023)
Article
Ecology
Shinae Montie, Mads S. Thomsen
Summary: This study examines the effects of marine heatwaves on small marine animals living in and around foundation species. The results show that in warmer seasons, the taxonomic richness and abundance of these animals are higher on heated plates with complex foundation species. These findings suggest that future marine heatwaves may increase secondary production and trophic transfers in temperate ecosystems.
ECOLOGY AND EVOLUTION
(2023)
Article
Ecology
Shinae Montie, Mads S. Thomsen
Summary: This study documents long-term successional changes following an extreme marine heatwave that caused the extinction of the dominant southern bull kelp in Pile Bay, New Zealand. It highlights the rapid colonization of invasive kelp and subsequent changes to the community structure, biodiversity, and ecosystem functioning. These findings have important implications for understanding the long-term effects of extreme marine heatwaves on ecosystems.
ECOLOGY AND EVOLUTION
(2023)
