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Padina (Brown Algae)

Some cages became very fouled with algae and bryozoans during deployment while others did not. These two cages were deployed at the same location during the same time period. — Fouling of cages for oyster biological indicators

Codium fragile, or 'Dead Man's Fingers' is a seaweek invasive to the northwest Atlantic — Dead man's fingers (Codium fragile)

Conceptual diagram illustrating the changes that occur in an underwater ecosystem as the nutrient load increases. — Effect of nutrient loading on primary producers

Conceptual diagram illustrating the methodology in analyzing the nitrogen in a water source using macroalgae as a bioindicator. — Nitrogen stable isotope methodology

Conceptual diagram illustrating the differences between habitats in natural streams versus man-made ditches including the vegetation, water temperature, and the relative debris that contribute toward a habitat. — Stream habitat vs. ditch habitat

Conceptual diagram illustrating the long term restoration goals in the Chesapeake Bay, USA. — Chesapeake Bay restoration goals

Macrocystis pyrifera (Giant Kelp) 1

Macrocystis pyrifera (Giant Kelp) 2

Nereocystis pyrifera (Bull Kelp)

Pseudo-nitzschia australis (Diatom)

Algae is washed up on a beach in Solomon's Island, Maryland. — Beach on Solomons Island, Maryland

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

Laurencia obtusa

Conceptual diagram illustrating how nutrients trigger large algae blooms, which decrease oxygen. — Algal blooms result in low oxygen

Diagram showing the effect of increasing nutrient loading on aquatic primary producers. — Effect of nutrients of aquatic primary producers

Helicopter view of dense Ulva at Bullock's Point, Providence River, Narragansett Bay RI — Dense Ulva beds Bullock Point, Providence River…

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

Giant kelp (Macrocystic pyrifera) underwater in Monterey Bay, California — Giant kelp

A microscopic algae (Trentepohlia aurea v. polycarpa) growing on Monterey cypress trees in Point Lobos State Reserve, California. The orange color comes from one of the pigments, beta carotene — Algae on Monterey cypress trees

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