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Big Grouper in an aquarium.
Rhodophyta seaweed or red algae branch isolated on white
Sea weed and clear water background
Red and green algae with blue water, underwater colors in the ocean  (mostly Asparagopsis armata and Ulva lactuca seaweeds), eastern Atlantic, Spain
Lush green sea grass underwater- Posidonia Oceania
Sea grapes ( green caviar ) seaweed, Healthy food.
Green and red algae on underwater rocks (Enteromorpha, Ulva, Ceramium, Polisiphonia), Black Sea
Seaweed on seabed in a warm Aegean sea in Greece.
Neptune grass or Mediterranean tapeweed (Posidonia oceanica) undersea, Aegean Sea, Greece, Halkidiki
Sea grass Scuba diving. Beautiful sea life, Underwater scene Sea grass bottom. Beautiful blue sea and scuba diver air bubble in background with copy space.
seaweed cut out on a white background
Mediterranean seagrass
Sea weeds green on the ocean floor off the coast of Brittany, France during a beautiful summer day.
Thallus of filamentous algae underwater in the ocean, algal bloom, Eastern Atlantic, Spain, Galicia
Dense thickets of green marine grass Posidonia, on blue water background. Green seagrass Mediterranean Tapeweed or Neptune Grass (Posidonia). Mediterranean underwater seascape. Mediterranean Sea, Cyprus
Floating sea weed (Codium Fragile)
Green seaweed (Ulva compressa). Marine fish.
Environmental pollution
Underwater landscape, Black Sea. Green, red and brown algae on the seabed (Ulva, Enteromorpha, Ceramium, Cladophora, Porphira)
The Mediterranean seagrass (Posidonia oceanica) and the invasive red seaweed (Asparagopsis armata) in La Ciotat (South of France).
Duntulm is a village in the administrative region of Highland on the Isle of Skye in Scotland. It sits on the northernmost point of the Trotternish Peninsula.
Seagrasses Underwater Sea life   Scuba diver point of view  Sea grass Posidoniaceae
Close up of plastic pack drifts with scraps of Seaweed Brown Sargassum on surface of water form floats islands of algae and plastic debris, on daytime in sunlight, Red sea, Egypt
Dictyota fasciola  algae from Mediterranean rocky coast
Fascinating patterns created by giant kelp, said to be mermaid's hair, along the coast of the city of Bluff at the southermost point of the Southern Isalnd of New Zealand
The Haystack Rock. a monolith, is the third-tallest intertidal structure in the world. The tidal pools around are home of many intertidal animals.
Sea grass underwater in the Mediterranean, neptune grass Posidonia oceanica, French Riviera, France
Whitley Bay rock formations.
Green algae on the hands, muddy water, sea pollution.
Close up of Seaweed in Sand on a Beach
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