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Marine Ecosystem Models (MEMs) provide a deeper understanding of marine ecosystem dynamics. The United Nations Decade of Ocean Science for Sustainable Development has highlighted the need to deploy these complex mechanistic spatial-temporal models to engage policy makers and society into dialogues towards sustainably managed oceans. From our shared perspective, MEMs remain underutilized because they still lack formal validation, calibration, and uncertainty quantifications that undermines their credibility and uptake in policy arenas. We explore why these shortcomings exist and how to enable the global modelling community to increase MEMs' usefulness. We identify a clear gap between proposed solutions to assess model skills, uncertainty, and confidence and their actual systematic deployment. We attribute this gap to an underlying factor that the ecosystem modelling literature largely ignores: technical issues. We conclude by proposing a conceptual solution that is cost-effective, scalable and simple, because complex spatial-temporal marine ecosystem modelling is already complicated enough.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8543074 | PMC |
http://dx.doi.org/10.1016/j.envsoft.2021.105209 | DOI Listing |
Mar Environ Res
September 2025
Shandong Key Laboratory of Coastal Environmental Processes, Yantai, Shandong, 264003, China.
Coastal zones are critical for the biogeochemical cycling of dissolved organic matter (DOM) in marine ecosystems, yet the relative importance of photochemical and microbial degradation in DOM transformation remains poorly understood due to complex hydrodynamics, diverse sources, and human activities. Through 14-day laboratory incubations, we investigated DOM transformation mechanisms from three common marine coastal space uses: port, mariculture and inshore areas adjacent to Yantai City. DOM characterization was performed using fluorescence excitation-emission matrix parallel factor (EEM-PARAFAC) and UV-Vis spectroscopic indices.
View Article and Find Full Text PDFJ Chromatogr A
September 2025
College of Marine Living Resource Sciences and Management, Shanghai Ocean University, Shanghai 201306, China; National Engineering Research Center for Oceanic Fisheries, Shanghai 201306, China. Electronic address:
Oil spills pose critical risks to coastal ecosystems, leading to bioaccumulation in cultured species and long-term economic repercussions for coastal communities. Biomarkers including hopanes and steranes have been widely used in oil fingerprinting. An aquatic microcosm was established in this study to simulate real-life marine conditions, enabling systematic monitoring of oil distributions in various aquatic mediums during nearly a month period.
View Article and Find Full Text PDFMar Pollut Bull
September 2025
Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba 277-8563, Japan. Electronic address:
Existing studies have identified a substantial amount of invisible floating debris in low-visibility marine environments, in addition to debris on the surface and seabed. These suspended pollutants represent a persistent and dynamic threat to marine ecosystems and maritime safety. Although sonar technology facilitates debris monitoring in low-visibility waters, the automatic extraction of small and weakly contrasted debris targets remains a critical challenge.
View Article and Find Full Text PDFMar Pollut Bull
September 2025
Ecological Risk Research Department, Korea Institute of Ocean Science & Technology, Geoje 53201, Republic of Korea; Department of Ocean Science, KIOST School, University of Science and Technology (UST), Daejeon 34113, Republic of Korea. Electronic address:
Eutrophication in semi-enclosed coastal systems remains a persistent concern due to restricted water circulation and continuous nutrient inputs. To better characterize nutrient-driven water quality degradation, we applied a threshold-based analysis to seasonal monitoring data collected from Masan Bay, South Korea, between 2010 and 2015. Eutrophication status was assessed using a composite Eutrophication Index (EI) integrating chemical oxygen demand (COD), dissolved inorganic nitrogen (DIN), and dissolved inorganic phosphorus (DIP).
View Article and Find Full Text PDFWater Res
September 2025
State Key Laboratory of Geomicrobiology and Environmental Changes, Hubei Key Laboratory of Critical Zone Evolution, China University of Geosciences (Wuhan), Wuhan 430078, China; Hubei Key Laboratory of Marine Geological Resource, China University of Geosciences, Wuhan 430074, China. Electronic addre
Anthropogenic climate warming and coastal eutrophication have restructured phytoplankton communities in the East China Sea; however, the centennial-scale dynamics of phytoplankton remain poorly understood. By systematically integrating 33 sediment cores, we reconcile the variations of primary productivity during the last century. The results revealed increased primary productivity during the past century, while the phytoplankton groups showed divergent eco-regional responses: river-dominated estuaries have partially mitigated the dominance of dinoflagellates (1980s) via Changjiang nitrate loading, while potential hypoxic regions shifted earlier (1960s) under thermal forcing and silicate concentration.
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