Estuarine ecosystems are transitional aquatic environments where freshwater from rivers mixes with saline marine waters, creating strong physicochemical gradients in salinity, turbidity, and nutrient concentrations. These systems encompass a mosaic of habitats, including tidal channels, mudflats, salt marshes, mangroves, and seagrass beds, and are characterized by high primary productivity and biogeochemical cycling. Estuaries function as critical nursery areas for many fish and invertebrate species, support complex food webs, and mediate material fluxes between terrestrial and coastal ocean systems. They also exhibit pronounced temporal variability driven by tides, river discharge, and seasonal processes, making them sensitive indicators of watershed- and climate-driven environmental change.
A key health indicator for the nation's most economically important estuary has delivered mixed news, with researchers from William & Mary's Batten School & VIMS reporting a 1%, or 641-acre, annual decline in submerged aquatic ...
Plants & Animals
Aug 8, 2025
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Chemicals released from car tires as they wear down are washing into rivers, estuaries and the sea and they could be disrupting life at the base of the marine food web, according to a new study.
Ecology
Aug 4, 2025
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25
Imagine a world where just six out of every 100 newborns make it to their teenage years, the rest unable to survive post-apocalyptic environmental conditions that have become too strange and dangerous for human life. That's ...
Plants & Animals
Jul 14, 2025
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85
The outcomes of a new study on the extent of future flooding caused by climate change along the Clyde Estuary could help coastal cities around the world better defend themselves against rising tides and extreme weather.
Environment
Jun 27, 2025
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Our oceans are in trouble. Catches from many of the world's fisheries are declining, with some fishing practices destroying enormous areas of the sea bed. Habitat loss through coastal development threatens many coastal ecosystems ...
Environment
Jun 25, 2025
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32
Seagrasses are critical to coastal ecosystems—offering habitat, stabilizing the seafloor and buffering wave energy—but globally they're increasingly under threat. Beginning in 2011, a series of intense algal blooms—fueled ...
Ecology
Jun 11, 2025
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28
The health of the Chesapeake Bay declined in an annual report card on the nation's largest estuary released Tuesday, with scientists noting the effect of extreme rainfall patterns during the hottest year on record.
Environment
Jun 10, 2025
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The Chesapeake Bay is the continental United States' largest estuary, spanning approximately 320 kilometers (200 miles) between northeastern Maryland and Virginia Beach. Like many coastal ecosystems, its water chemistry is ...
Earth Sciences
May 21, 2025
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108
Environmental scientists at Nottingham Trent University have identified exactly where coastal waters meet freshwater rivers, unlocking insights into one of the most overlooked and at-risk aquatic habitats.
Environment
May 20, 2025
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24
In estuaries—the transitional zones between rivers and the sea—fresh and salt water are constantly battling for dominance. But due to climate change, the saltwater is gaining ground. New research by Utrecht University's Institute ...
Earth Sciences
Apr 15, 2025
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