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Row of loaf shaped yellow nipple sponges on flat rocky sea floor under canopy of kelp. Location: Leigh New Zealand
A garibaldi protects its nest on a shallow, rocky kelp forest off the coast of Catalina Island, California.
A submerged pipe lies partially buried in the sandy bottom while various marine plants and algae grow nearby, showcasing the underwater ecosystem's interaction with human-made structures.
Green tree coral (Tubastrea micranthus) in the marine protected area of Aliwal Shoal on the east coast of South Africa.
Reef scene with large orange Flagellar sea fan and a Palmate sea fan surrounding it
Giant Acorn Barnacle Feeding using Cirri, Balanus nubilus,   Monterey, California; Arthropoda; Crustacea; Thoracica; Balanidae
Underwater landscape, Black Sea. Green, red and brown algae on the seabed (Ulva, Enteromorpha, Ceramium, Cladophora, Porphira)
Seaweed
Finger Sponge and colorful Red Soft Coral underwater in the Gulf of St.Lawrence.
An underwater scene featuring a stone (Ancient Coral Formation) in clear blue water. The stone showcases  yellow algae on its surface. The water's transparency allows for a clear view of the stone and the intricate details of the algae growth. The photograph provides a straightforward depiction of the stone's presence within the aquatic environment, highlighting the natural occurrence of algae in underwater habitats. The combination of the stone, yellow algae, and clear blue water creates a visually interesting tableau, showcasing the simplicity and beauty found beneath the water's surface.
Underwater Freshwater Flora Rivers, Lakes, Pond,  Underwater Flora
Half Underwater View Mussel and Oyster Farm
Sponges of various colours and shapes grow under canopy of kelp forest. Location: Leigh New Zealand
Fan tube worm (Sabellastarte magnifica) on the roots of a mangrove tree in Guadeloupe (Caribbean, France)
Beautiful coral
Marine life
Beautiful seascape with Red of Soft Coral in the St. Lawrence River
White sea shell.  Close up Abstract.  Exploring and enjoying Beautiful Sea Life macro .  Underwater scene at clear mediterranean sea.  Scuba diver point of view. Greece Europe. Underwater photography
Sea Life Hilton Head Island
Anemones under water.
Seascape Port Phillip Bay Mornington Peninsula
Reef and sea life in the Pacific Ocean
Stalked kelp Ecklonia radiata and yellow nipple sponges scattered on sea floor. Location: Leigh New Zealand
Thistle soft coral (Dendronephthya sp.) in the marine protected area of Aliwal Shoal on the east coast of South Africa.
Warty Sponge underwater in the St. Lawrence River
A colorful underwater coral wall in the waters of Illes Medes near L’Estartit, Catalonia, featuring a variety of vibrant coral species and marine biodiversity, showcasing the natural richness of the Mediterranean Sea.
Underwater life, Norwegian Sea background photo
Undersea and sponge
Red beard sponge (Clathria proliferia) underwater growing on a rock in the Bass River of Cape Cod in Yarmouth, Massachusetts
sea ​​damsels swimming on the seabed in the Mediterranean Sea among the colors of a blue sea
Free Images: "bestof:underwater water outdoor coral off Gloucester, MA off Gloucester, MA"
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