Identification and spatio-temporal analysis of Ulva prolifera in a typical coastal area using SAR imageries

Ecological Informatics, Journal Year: 2025, Volume and Issue: unknown, P. 103039 - 103039

Published: Jan. 1, 2025

Language: Английский

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Sandy Subterranean Estuaries Minimize Groundwater Nitrogen Pollution Impacts on Coastal Waters

Geophysical Research Letters, Journal Year: 2025, Volume and Issue: 52(3)

Published: Jan. 30, 2025

Abstract Widespread anthropogenic activities pollute groundwater that eventually seeps out to the coastal ocean. Here, we resolve nutrient transformations and fluxes in 11 sandy subterranean estuaries (STEs) with contrasting sources development trajectories. Coastal nitrogen pollution stems from sewage discharge land use change. Anthropogenically derived high N/P ratios (∼170) accounted for 22%–61% of riverine inputs into China's waters, providing an additional source nutrients can fuel eutrophication algal blooms. Sandy STEs remarkably attenuated ∼84% pollution, minimizing impact submarine (SGD) on water quality. Hence, deliver overlooked ecosystem service is particularly important highly polluted aquifers. Protecting recognizing integrated nature seawater thus quality management initiatives.

Language: Английский

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Quantifying coral-algal interactions in an acidified ocean: Sargassum spp. exposure mitigates low pH effects on Acropora cervicornis health

Frontiers in Marine Science, Journal Year: 2025, Volume and Issue: 12

Published: Feb. 28, 2025

Increasingly frequent large-scale pelagic Sargassum algae blooms in the Atlantic have become a problem for coastal ecosystems. The mass decay of these reduces water quality flora and fauna. However, effects living on seawater consequently coral reef ecosystems that rely delicately balanced carbonate chemistry are more ambiguous. Future oceans predicted to be acidic as additional anthropogenic CO 2 emissions absorbed, potentially tipping balance favor algal at cost survival. This study aimed simulate indirect interaction between S argassum spp. Acropora cervicornis fragments from Florida Reef current-day future ocean pH conditions over course 70 days mesocosm experimental system. Measurements growth health via buoyant weight Pulse Amplitude Modulated (PAM) fluorescence measurements reveal an unexpected coral-algal interaction. After 1 month, was significantly reduced under acidification exposure ; same time quantum yield maximum electron transport rate photosynthesis were increased relative control counterparts ambient scenarios by up 14% 18% respectively. These improvements photosynthetic efficiency did not translate significant differences final measurement point. In addition, presence raise system, raising questions about how it benefited exposed corals. Heterotrophy detrital matter is suspected compensate impaired stressed Therefore, despite their current negative reputation, could provide short term localized benefits corals present conditions.

Language: Английский

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A Revisit of Landsat-Observed Macroalgal Blooms in the Yellow Sea and East China Sea Before 2008

Journal of Ocean University of China, Journal Year: 2025, Volume and Issue: 24(2), P. 525 - 531

Published: March 10, 2025

Language: Английский

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Origins and pathways of the floating Sargassum in the Yellow and East China Seas

Marine Pollution Bulletin, Journal Year: 2025, Volume and Issue: 215, P. 117898 - 117898

Published: April 4, 2025

Language: Английский

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