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Celebrating 100 Years of Science! | 1925-2025

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The sequence of events leading to record harmful algal blooms in the Indian River Lagoon ecosystem in March 2016. Over 100 tons of fish were killed.
A deadly sequence of events in Florida
Illustration of excess sediment running off the land into the water.
Inputs: sediments 2
A diagram illustrates the way in which carbon dioxide dissolves in the ocean and the impacts acidification can have on marine life.
Atmospheric and Eutrophic Acidification
An image illustrates how lawn fertilizer can negatively impact the watershed when rain washes it into the water system.
Lawn Fertilizer Limitation as a Key Stewardship…
A conceptual diagram illustrates the key features of the Chesapeake Bay watershed as well as the inputs that stimulate eutrophication and the symptoms of eutrophication.
The Causes and Effects of Eutrophication
Illustration of a healthy stream ecosystem with ephemeral pools.
Stream 3D: healthy
Illustration of a stream with stream bank erosion, poor water quality, and poor air quality.
Stream 3D: unhealthy
3D comparison of a healthy vs eutrophic river system.
River 3D: comparison healthy vs eutrophic
Conceptual diagram illustrating the differentiating aspects between a coastal bay, and a larger river-valley bay, more specifically, The Chesapeake Bay.
Coastal lagoon vs. river-valley estuary
Conceptual diagram illustrating the overall eutrophic condition of coastal lagoons in the early 2000's.
Map of national coastal lagoon conditions
Macroalgae bloom, Ulva lactuca (sea lettuce), that washed up onto the Oxford beach along the Tred Avon River.
Ulva bloom on the Tred Avon River
Macroalgae bloom, Ulva lactuca (sea lettuce), that washed up onto the Oxford beach along the Tred Avon River.
Ulva bloom on the Tred Avon River
Macroalgae bloom, Ulva lactuca (sea lettuce), that washed up onto the Oxford beach along the Tred Avon River.
Ulva bloom on the Tred Avon River
Macroalgae bloom, Ulva lactuca (sea lettuce), that washed up onto the Oxford beach along the Tred Avon River.
Ulva bloom on the Tred Avon River
Macroalgae bloom that washed up onto the Oxford beach along the Tred Avon River.
Ulva bloom on the Tred Avon River
This conceptual diagram illustrates the process in which higher level trophic organisms have a smaller and smaller area of habitat to occupy when environmental parameters that affect these organisms are degraded.
Habitat squeeze
near-anoxic event Providence River showing beggiatoa growing on dense Ulva in a shallow marina basin Aug 2003
Beggiatoa on Ulva in shallow cove Providence…
Helicopter view of a dense green macroalgal bloom (either Ulva or Enteromorpha) in Buttonwoods Cove, Warwick, RI. This area receives significant failing septic system nutrients and is poorly flushed.
Macroalgal bloom in Buttonwoods, Warwick, RI
sulfur precipitate in near-anoxic event Greenwich Cove RI ASugust 2006 from helicopter.
near anoxic sulfidic waters- Greenwich Cove, RI
Wickford Harbor RI from helicopter. water appears to have sulfur precipitate - extreme low DO event in this period Aug 2006
Wickford Harbor RI - sulfidic waters
Over-application of herbicides and pesticides on farm fields can result in excess toxins and nutrients reaching the waterways.
Trappe, MD, June 30, 2005
The application of an herbicide on a farm field
Illustration of Tubastrea spp. (Sun Coral)
Tubastrea spp. 1 (Sun Coral)
Illustration of Tubastrea (Sun Coral)
Tubastrea spp. 2 (Sun Coral)
Illustration of autotrophic system experiment setup
Autotrophic system experiment
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