Article
Environmental Sciences
Wenjie Yan, Zhaohua Wang, Yanzhao Pei, Bin Zhou
Summary: Extreme ocean events caused by global warming are projected to intensify and may have severe consequences for marine ecosystems. This study focuses on the response of seagrass Zostera marina to ocean acidification in hot conditions using a combination of morphology, transcriptomics, and metabolomics. The results show that Z. marina adapts to ocean acidification and marine heatwaves by upregulating certain metabolic pathways and activating the antioxidant system.
MARINE POLLUTION BULLETIN
(2023)
Article
Multidisciplinary Sciences
Yi Zhang, William R. Boosa
Summary: Heatwaves have a damaging impact on societies worldwide and are becoming more severe due to global warming. This study suggests that convective instability acts as a limiting factor for the maximum surface air temperature over midlatitude land. The known drivers of heatwaves can shift the atmospheric state, changing its proximity to the upper bound. In Northern Hemisphere midlatitude land, the upper bound for maximum surface air temperature is projected to increase at a faster rate than global mean surface air temperature, and it will increase even faster in regions that experience dry conditions on the hottest days.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Geosciences, Multidisciplinary
M. Hayashi, H. Shiogama, T. Ogura
Summary: This study used climate models to investigate the impact of climate change on extreme ocean warming events around Japan. The research found that extreme ocean warming events have been increasing in recent years, especially in southern Japan. Climate change has significantly increased the probability of these events since 2000. Furthermore, the study concluded that limiting global warming to 1.5 degrees Celsius can greatly reduce the likelihood of future normal climate exceeding historical record high sea surface temperatures.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Marine & Freshwater Biology
Minh-Hoang Le, Khuong V. Dinh, Xuan Thi Vo, Hung Quoc Pham
Summary: This study demonstrates that tropical reef-associated fish juveniles are highly vulnerable to stressors such as temperature, copper, and food limitation, which can adversely affect their survival and growth and impair their ecological function as predators in coral reefs.
ESTUARINE COASTAL AND SHELF SCIENCE
(2022)
Article
Meteorology & Atmospheric Sciences
Yuqing Wang, Chunzai Wang
Summary: Harmful heatwaves have been occurring more frequently worldwide, causing serious damage to human society and the natural environment. This paper presents a new method to classify summer heatwave events in the Northern Hemisphere based on comprehensive event characteristics. There are five main high-severity event types, including high-intensity, high-humidity-amplification, long-duration, large-area, and long-duration-large-area events. The proportion of high-severity events has significantly increased after 1989, primarily due to large-area and long-duration-large-area events. The study also shows that greenhouse gas-related external forcing is the leading cause of these increases.
Article
Environmental Sciences
Yan-Hao Zhang, Jian-Du Li, Zhong-Xun Wu, Shun-Jie Yuan, Wen-Tao Li, Pei-Dong Zhang
Summary: The study found that exposing Zostera marina plants to prolonged light duration of 4 hours per day is beneficial for their survival and growth, mainly due to increased chlorophyll content and the accumulation and synthesis of non-structural carbohydrates.
FRONTIERS IN ENVIRONMENTAL SCIENCE
(2022)
Article
Environmental Sciences
Clifford L. K. Robinson, Jennifer Yakimishyn, Rhian Evans
Summary: The main objective of this study was to determine the impact of spring marine heatwaves on early summer fish assemblage in eelgrass meadows. The study found that during the heatwave years, there was a significant increase in fish assemblage compared to baseline years, although no significant changes were observed in species composition or biomass. The response of fish families to the heatwaves was also found to be asynchronous between two study areas. The study concludes that the changes in fish abundances during the short-term heatwave events were temporary.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Environmental Sciences
Thibaut Bagni, David Siaussat, Annick Maria, Philippe Couzi, Martine Maibeche, Manuel Massot
Summary: The combined effects of insecticides and temperature on species responses are being studied, and it has been found that transgenerational effects play a role in the sensitivity of insects to insecticides. A study on moth Spodoptera littoralis confirmed the transgenerational effect observed in a previous study on Culex pipiens, showing that the impact of temperature on insecticide sensitivity can be influenced by the previous generation's environment. This highlights the importance of considering transgenerational plasticity in ecotoxicology.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Ecology
Heidi R. Waite, Cascade J. B. Sorte
Summary: Under climate change, the parental environment can influence the thermal tolerance of marine organisms and have negative effects on the next generation.
Article
Plant Sciences
Wen-Han Yu, Li-Min Zhang, Fang-Li Luo, Fei-Hai Yu, Mai-He Li
Summary: This study found that clonal parental nutrient effects can regulate interspecific competition between Pistia stratiotes and Eichhornia crassipes by altering the competitive ability of P. stratiotes. These effects are related to resource provisioning and DNA methylation mechanisms.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Marine & Freshwater Biology
Hongrui Wang, Xuexi Tang, Jun Chen, Shuai Shang, Meiling Zhu, Shuo Liang, Yu Zang
Summary: The study found that high ammonium stress significantly affected the growth of leaves and had a negative effect on photosynthesis in Zostera marina. Roots showed tolerance to ammonium stress at concentrations <= 100 mg/L. Increasing ammonium concentrations led to higher increase of ammonium and free amino acid contents in leaves than in roots. Enzyme activity and gene expression related to nitrogen metabolism detoxification were higher in roots compared to leaves under ammonium stress.
AQUATIC TOXICOLOGY
(2021)
Article
Meteorology & Atmospheric Sciences
Kimmo Ruosteenoja, Kirsti Jylha
Summary: This study examines heatwaves in Europe at different levels of global warming using data from 60 simulations with 25 global climate models. The results show that heatwave days in northern Europe could increase three to fourfold, while southern Europe may experience an increase of more than sixfold. The intensity of heatwaves in the south is also projected to be tenfold higher. The study discusses factors that contribute to the stronger increase in heatwave duration and extremity in southern Europe compared to the north.
Article
Environmental Sciences
Susanne Baden, Stein Fredriksen, Hartvig Christie, Louise Eriander, Camilla Gustafsson, Marianne Holmer, Birgit Olesen, Jonas Thormar, Christoffer Bostrom
Summary: In this study, a short-term field sampling was conducted, complemented with time integrating stable isotope analysis, to holistically investigate the status and ecological interactions in a remote NE Atlantic Zostera marina meadow. The study found high nutrient water concentrations, large biomass of fast-growing, ephemeral macroalgae, low abundance and biodiversity of epifauna, and a food web with thornback ray as intermediate and cod as top predator. The results indicated that the Finnoya Zostera ecosystem is eutrophicated. The study concluded that bottom-up regulation is a predominant driver of change since top-down regulation is generally weak in low density and exposed Zostera ecosystems such as Finnoya.
MARINE POLLUTION BULLETIN
(2022)
Article
Environmental Sciences
Aske Bang Hansen, Anne Sofie Pedersen, Michael Kuhl, Kasper Elgetti Brodersen
Summary: Ocean warming may affect the epiphytes of seagrass, leading to a decrease in photosynthetic efficiency, especially at high temperatures. Epiphytes have a competitive advantage in cold CO2-rich environments, while seagrass with bare leaves may not be affected by elevated seawater temperatures.
FRONTIERS IN MARINE SCIENCE
(2022)
Review
Biodiversity Conservation
Francesco Polazzo, Sabrina K. Roth, Markus Hermann, Annika Mangold-Doring, Andreu Rico, Anna Sobek, Paul J. van den Brink, Michelle C. Jackson
Summary: Freshwater ecosystems are significantly affected by heatwaves and chemicals, yet limited research makes it difficult to draw consistent conclusions. There is a knowledge gap in utilizing multitrophic approaches, hindering the exploration of food web stability. The urgency of integrating extreme events into multiple stressors studies is emphasized.
GLOBAL CHANGE BIOLOGY
(2022)