Spatio-Temporal pattern of coastal flooding due to microclimate change and mangrove deforestation in Semarang and Demak Coastal Area

E3S Web of Conferences, Год журнала: 2025, Номер 605, С. 03012 - 03012

Опубликована: Янв. 1, 2025

The coastal area of Semarang-Demak has a high intensity economic activity, indicated by the presence industry, housing, and other socio-economic activities. On one hand, is faced with increasing pressure due to climate change, environmental degradation (mangrove deforestation). change mangrove deforestation have made flooding wider. This study aimed reveal relationship between degradation, its impact in Semarang Demak. used remote sensing methods uisng Landsat data from years 1988-2023. results showed strong deforestation, flooding. And they significant on coast. modeling using regression statistics resulted equation Y = -8966.7 + 290.8X 1 5.06X 2 , where Demak coast, X forest damage, microclimate determination coefficient 74%. Based this model, opportunity for an increase will be even greater if no efforts are overcome also change.

Язык: Английский

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Flavonoids and anthocyanins in seagrasses: implications for climate change adaptation and resilience

Frontiers in Plant Science, Год журнала: 2025, Номер 15

Опубликована: Янв. 28, 2025

Seagrasses are a paraphyletic group of marine angiosperms and retain certain adaptations from the ancestors all embryophytes in transition to terrestrial environments. Among these is production flavonoids, versatile phenylpropanoid secondary metabolites that participate variety stress responses. Certain features, such as catalytic promiscuity metabolon interactions, allow flavonoid metabolism expand produce novel compounds respond stimuli. As environments expose seagrasses unique set stresses, plants display interesting profiles, functions which often not completely clear. Flavonoids will likely prove be effective agents combating new host conditions introduced by anthropogenic climate change, affects differently ones. These stresses include increased sulfate levels, changes salt concentration, herbivore distributions, ocean acidification, involve flavonoids response mechanisms, though role combatting change seldom discussed directly literature. can also used assess health seagrass meadows through an interplay between simple phenolic may useful monitoring change. Studies focusing on genetics limited for this group, but large chalcone synthase gene families some species provide topic research. Anthocyanins typically studied separately other flavonoids. The phenomenon reddening focuses importance anthocyanins UV-screening mechanism, while cold less often. Both would adaptation change-induced deviations tidal patterns emersion. However, warming lead decrease anthocyanin content, impact performance intertidal seagrasses. This review highlights angiosperm adaptation, examines research seagrasses, hypothesizes organisms under

Язык: Английский

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Impact of climate change on the distribution of Trachurus japonicus in the Northern South China Sea

Ecological Indicators, Год журнала: 2024, Номер 160, С. 111758 - 111758

Опубликована: Фев. 23, 2024

Understanding the impact of climate change on distribution marine species is vital importance for sustainable development fisheries. In this study, an ensemble model employed to predict potential Japanese jack mackerel (Trachurus japonicus) in Northern South China Sea (NSCS) under current conditions and three future scenarios (IPCC Representative Concentration Pathways RCP126, RCP245, RCP585). The incorporates environmental variables including sea surface salinity (SSS), height above geoid (SSH), temperature (SST), ocean mixed layer thickness (MLD), distance from land (DFL). Notably, SST SSH are found be most influential factors defining habitat T. japonicus. Model predictions reveal that suitable habitats japonicus primarily located offshore area west Pearl River estuary, especially waters with depths less than 100 m NSCS. Beibu Gulf emerges as a prominent species. However, projections indicate significant reduction areas high probability occurrence, particularly emissions. This observed NSCS at ranging 40 m, while northwestern coastal regions projected witness increase habitats. rate contraction expected surpass expansion, estimated 16.93 % 29.27 decrease by 2091–2100.These findings offer fundamental insights into how impacts provide valuable guidance resource utilization.

Язык: Английский

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Impact of environmental factors changes induced by marine heatwaves and heavy precipitation on antibiotic toxicity to Isochrysis galbana: Implications for climate change adaptation

Marine Pollution Bulletin, Год журнала: 2024, Номер 203, С. 116453 - 116453

Опубликована: Май 11, 2024

Isochrysis galbana, a crucial primary producer and food source in aquatic ecosystems, faces increasing challenges from climate change emerging contaminants like antibiotics. This study investigates the combined effects of sudden temperature increase (representing marine heatwaves) rapid salinity extreme precipitation events) on toxicity tetracycline (TC) oxytetracycline (OTC) to I. galbana. Short-term experiments reveal heightened antibiotic at 31 °C or salinities 18 PSU, surpassing algal tolerance limits. Long-term tests show decreased inhibition growth day 9, indicating adaptation environment. Analyses photosynthesis II efficiency, pigment content, macromolecular composition support this, suggesting mechanism activation. While algae acclimate environment during long-term exposure, weather conditions may compromise this adaptation. These findings have implications for managing antibiotics environments under change.

Язык: Английский

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Evaluation of HY-2B SMR Sea Surface Temperature Products from 2019 to 2024

Remote Sensing, Год журнала: 2025, Номер 17(2), С. 300 - 300

Опубликована: Янв. 16, 2025

Haiyang 2B (HY-2B), the second Chinese ocean dynamic environment monitoring satellite, has been operational for nearly six years. The scanning microwave radiometer (SMR) onboard HY-2B provides global sea surface temperature (SST) observations. Comprehensive validation of these data is essential before they can be effectively applied. This study evaluates SST product from SMR, covering period 1 January 2019 to 31 August 2024, using direct comparison and extended triple collocation (ETC) methods. assesses bias root mean square error (RMSE), while ETC analysis estimates random measurement systems their ability detect variations. Additionally, spatial temporal variations in characteristics, as well crosstalk effects wind speed, columnar water vapor, cloud liquid water, are analyzed. Compared with iQuam SST, total RMSE SMR ascending descending passes 0.88 °C 0.85 °C, biases 0.1 −0.08 respectively. indicates that errors 0.87 0.80 SMR’s decreases significantly at high latitudes near 10°N latitude. Error reveals uncertainty SSTs increased over time, presence retrieval confirmed.

Язык: Английский

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Human Activity as a Growing Threat to Marine Ecosystems: Plastic and Temperature Effects on the Sponge Sarcotragus spinosulus

Toxics, Год журнала: 2025, Номер 13(1), С. 66 - 66

Опубликована: Янв. 20, 2025

Human activities increasingly threaten marine ecosystems through rising waste and temperatures. This study investigated the role of plastics as vectors for Vibrio bacteria effects temperature on sponge Sarcotragus spinosulus. Samples sponges were collected during July, August (high-temperature period), November (lower-temperature period). Bacterial growth responses analysed using biochemical biomarkers. The results revealed a peak in colony-forming units (CFU), particularly alginolyticus, August, followed by decrease November. In CFU counts spp. significantly higher with poor external appearance (characterized dull coloration heavy epiphytic growth) but returned to levels observed healthy Microplastics detected tissues both groups, concentrations found affected specimens. Biomarker analyses increased lysozyme, glutathione S-transferase, catalase, superoxide dismutase while malondialdehyde levels, indicating oxidative damage, sponges. conclusion, exhibited elevated reduced antioxidant detoxification under These findings suggest that combined impacts warming may pose significant risks S. spinosulus context global climate change.

Язык: Английский

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Climate-Resilient Aquatic Ecosystems: A Roadmap for Sustainable Development

Earth and environmental sciences library, Год журнала: 2025, Номер unknown, С. 263 - 274

Опубликована: Янв. 1, 2025

Язык: Английский

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Risk assessment to Barents Sea ecosystem services: an expert-based approach

Frontiers in Marine Science, Год журнала: 2025, Номер 12

Опубликована: Фев. 5, 2025

This study aims to investigate the risks posed by climate change and anthropogenic activities on ecosystem services in Barents Sea, Norway. Using an expert assessment approach, we identify which are at high risk human pressures contributing these risks. The findings indicate that vary across services, activities, pressures; however, most categorized as medium or low. Biodiversity, a cultural service, fish/shellfish, provisioning identified two threatened services. In contrast, educational perceived least impacted. Temperature is found have greatest impact Experts generally uncertain about levels; fish/shellfish biodiversity associated with uncertainty. results highlight limited knowledge regarding Sea. emphasizes need for future research address gaps discusses where management efforts should be focused.

Язык: Английский

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Effect of Diet Changes in Benthic Ecosystems owing to Climate Change on the Physiological Responses of Turbo sazae in Waters around Jeju Island, Korea

Marine Environmental Research, Год журнала: 2025, Номер 205, С. 107001 - 107001

Опубликована: Фев. 6, 2025

Язык: Английский

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Considerations for determining warm-water coral reef tipping points

Earth System Dynamics, Год журнала: 2025, Номер 16(1), С. 275 - 292

Опубликована: Фев. 7, 2025

Abstract. Warm-water coral reefs are facing unprecedented human-driven threats to their continued existence as biodiverse functional ecosystems upon which hundreds of millions people rely. These impacts may drive past critical thresholds, beyond the system reorganises, often abruptly and potentially irreversibly; this is what Intergovernmental Panel on Climate Change (IPCC, 2022) define a tipping point. Determining point thresholds for reef requires robust assessment multiple stressors interactive effects. In perspective piece, we draw recent global revision initiative (Lenton et al., 2023a) literature search identify summarise diverse range interacting that need be considered determining warm-water ecosystems. Considering observed projected stressor impacts, endorse revision's conclusion mean surface temperature (relative pre-industrial) threshold 1.2 °C (range 1–1.5 °C) long-term atmospheric CO2 concentrations above 350 ppm, while acknowledging comprehensive stressors, including ocean warming response dynamics, overshoot, cascading have yet sufficiently realised. already been exceeded, therefore these systems in an overshoot state reliant policy actions bring levels back within limits. A fuller likely further lower most cases. Uncertainties around points such crucially important underline imperative and, case knowledge gaps, employing precautionary principle favouring lower-range values.

Язык: Английский

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