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The Antarctic region has experienced recent climate and environmental variations due to climate change, such as ice sheets and ice shelves loss, and changes in the production, extension, and thickness of sea-ice. These processes mainly affect the freshwater supply to the Southern Ocean and its water masses formation and export, being crucial to changes in the global climate. Here, we review the influence of the glacial freshwater input on the Antarctic Peninsula adjacent ocean. We highlight each climate process' relevance on freshwater contribution to the sea and present a current overview of how these processes are being addressed and studied. The increase of freshwater input into the ocean carries several implications on climate, regionally and globally. Due to glacier melting, the intrusion of colder and lighter water into the ocean increases the stratification of the water column, influencing the sea-ice increase and reducing ocean-atmosphere exchanges, affecting the global water cycle. This study shows the role of each hydrological cycle processes and their contributions to the regional oceanography and potentially to climate.
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http://dx.doi.org/10.1590/0001-3765202220210811 | DOI Listing |
J Hazard Mater
September 2025
Division of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea. Electronic address:
While mercury (Hg) concentration and isotope analyses play pivotal roles in understanding contamination levels and Hg sources, complex hydrodynamics often obscure Hg transport pathways from source to sink. We applied hydrodynamic modeling with Hg stable isotopes to unravel source-specific contamination processes and propose effective management strategies in an estuarine system (Yeongil Bay) impacted by Hg-contaminated riverine input (Hyeongsan River) in Korea. Sediment isotope data revealed contributions of three sources: legacy Hg from the river, regional background Hg, and atmospheric Hg sources.
View Article and Find Full Text PDFSci Total Environ
September 2025
Centre for Water Resources Development and Management (CWRDM), Kozhikode 673571, India.
Microplastics (MPs) contamination in urban groundwater is an emerging environmental and public health threat, particularly in regions relying on open wells for drinking water. This study examines the occurrence, characteristics, ecological risks and sources of MP contamination across 120 open wells in Kozhikode Municipal Corporation, Kerala, India. MPs were detected in 73.
View Article and Find Full Text PDFSci Total Environ
September 2025
Graduate School of Agriculture, Meijo University, 1-501 Shiogamaguchi, Nagoya 468-8502, Japan. Electronic address:
Halogenated polycyclic aromatic hydrocarbons (HPAHs) including chlorinated (ClPAHs) and brominated (BrPAHs) variants, are emerging contaminants that are considered the next-generation candidates of persistent organic pollutants. Since there was a significant gap exists in understanding of partitioning dynamics of HPAHs between the particulate phase (PP) and dissolved phase (DP) considering many congeners, this study analyzed 75 congeners of parent PAHs and HPAHs (p/HPAHs) in the samples collected from 27 sites from 20 water bodies in Sri Lanka. The results revealed that the mean of the total concentrations of PAHs, ClPAHs, and BrPAHs in the aqueous phase (PP + DP) were 55.
View Article and Find Full Text PDFMar Environ Res
August 2025
Department of Oceanography, Pusan National University, Busan, 46241, South Korea.
The Yellow Sea (YS) and the East China Sea (ECS), which comprise continental shelves with depths of 200 m or less, are recognized as some of the most productive coastal areas globally. Although this high productivity can contribute to carbon sequestration, the spatiotemporal variability of the biological pump remains unclear. To investigate this variability, net community production (NCP) in August 2020 was estimated based on high-resolution O/Ar measurements.
View Article and Find Full Text PDFFish Shellfish Immunol
September 2025
MOE Key Laboratory of Molecular Genetics and Breeding, College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China; Key Laboratory of Tropical Aquatic Germplasm of Hainan Province, Sanya Oceanographic Institution, Ocean University of China, Sanya 572025, China. Electronic addre
Functioning as molecular chaperones, heat shock proteins (HSPs) are rapidly upregulated under stress conditions, safeguarding cells against damage induced by heat, mechanical injury, and chemical agents. Despite their critical physiological roles, a comprehensive genome-wide characterization of HSP genes has been lacking for Sebastes schlegelii, a commercially important coastal benthic fish. In this study, we systematically identified the HSP gene family and analyzed its expression profiles.
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