Marine water quality refers to the physicochemical, biological, and microbiological status of seawater as characterized by quantitative indicators relevant to ecosystem function, contaminant exposure, and regulatory standards. It encompasses parameters such as nutrient concentrations (e.g., nitrogen, phosphorus), dissolved oxygen, salinity, temperature, pH, turbidity, organic matter, trace metals, hydrocarbons, persistent organic pollutants, and microbial/pathogen loads. Assessment of marine water quality underpins evaluations of eutrophication, hypoxia, harmful algal blooms, contaminant bioavailability, and ecological risk. It is central to monitoring programs, environmental impact assessments, and management frameworks such as marine protected areas and coastal zone management, often integrating in situ measurements, remote sensing, and modeling.
Given enough time, coral reefs can recover from cyclones, bleaching and other destructive events. But a new report released today suggests they are losing that time. The "Status of Coral Reefs of the World: 2025" is the most ...
Ecology
Aug 31, 2026
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9
Imagine a plume of brown sediment washed off the land into Queensland rivers and carried out to sea. Here, it can settle on seagrass and inshore corals, potentially smothering them. River water often also carries nitrogen ...
Environment
Aug 26, 2026
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15
Namibia has granted environmental clearance for an offshore phosphate mining project that paves the way for the world's first commercial seabed-dredging operation for the mineral, despite opposition from green groups and ...
Environment
Aug 25, 2026
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12
In April 1917, the German submarine UC-30 sailed beneath the waves off the coast of Rømø. It had originally been on a mission in Ireland, but after suffering engine trouble, it turned around and was almost home in Germany.
Environment
Aug 21, 2026
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147
Not all of Indonesia's seagrass meadows are faring alike. A study has revealed substantial spatial differences in the condition of 21 seagrass meadows across central and eastern Indonesia, providing a clearer picture of where ...
Environment
Aug 21, 2026
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6
The artificial intelligence boom is driving unprecedented demand for data centers, raising concerns about their growing energy consumption, water use and carbon footprint. These challenges are making companies look beyond ...
Environment
Aug 17, 2026
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20
This summer, millions of people across the country have been digging out sunscreen to protect themselves from a record-breaking series of heat waves.
Earth Sciences
Aug 9, 2026
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58
A bacterium linked to seafood-related illness and capable of resisting multiple antibiotics has been detected in fish-farming waters near Cat Ba Island, Vietnam, according to a new study highlighting the importance of monitoring ...
Molecular & Computational biology
Aug 4, 2026
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87
An international study led by Curtin University has put to bed a scientific debate dating back 176 years, confirming that two historically significant oyster species from Western Australia and Fiji are distinct species.
Ecology
Aug 3, 2026
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8
Researchers from the University of Plymouth have led the production of a new report highlighting the impact of climate change on marine plankton and pelagic habitats in U.K. waters. Published by the Marine Climate Change ...
Ecology
Jul 30, 2026
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10
