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3d Animation Sea Anemones in the Color Depths (Depth Of Field)

Single purple sea urchin in the middle of coral reef tank in an aquarium

Beautiful sea flowers in underwater world with corals

The Red Urchin, blue-spotted urchin; Fire Urchin or False Fire Urchin, Astropyga radiata, is an urchin, with a test (shell) diameter of about 20 cm. It is found in the Indo-Pacific region. Maui Island, Hawaii

Purple Sea Urchin Close Up Underwater Southeast Alaska

Mediterranean purple sea urchin - Sphaerechinus granularis

Beautiful underwater scene with sea urchin in aquarium in Dusseldorf, Germany. Tropical scenery.

Sea life Orange coral from scuba diver point of view

Sea urchin Evechinus chloroticus on rock covered with layer of sediment and some vegetation.

$Blue Spotted Sea Urchin Astropyga radiata occurs in the tropical Indo-Pacific Ocean from the African coast to Australia and to Hawaii in a depth range from 0 to 60m, usually 10 to 30m, max. test diameter 20cm. \nThe species is often found in lagoons and bays where the substrate is sand, shingle or coral rubble. Sometimes many urchins collect together in one locality in dense aggregations. \nAstropyga radiata is mostly nocturnal and feeds by grazing on algae. The mouth is at the centre of the oral (under) surface where there are five powerful teeth.\nThis urchin is light sensitive and can angle its spines towards an approaching threatening object, but rather than centralized eyes, Astropyga radiata has a distributed sensory system. Funny thing is that many people think the thing in the middle is the eyeball, but it is the rectum. \nThe sexes are separate in Astropyga radiata. Eggs and sperm are liberated into the water column. After fertilisation, the larvae are planktonic and develop through several stages before settling on the seabed. \nLembeh Strait, Indonesia \n1°27'13.104 N 125°14'14.634 E at 12m depth$

Close-Up of Green Sea Urchin Shells with Selective Focus

Rock boring urchin, Echinometra mathaei, nestled in a crevise of a tide pool. The urchin uses it jaws to enlarge the hole as it grows. Ko Olina, Oahu, Hawaii.

Sea Urchin Echinoderm shell texture. Underwater Sea life, Macro abstract. Blue sea in background.

Close up of bright orange soft coral head pattern underwater, Great Barrier Reef, Queensland.

Coral life on the Busselton Jetty pylons. Busselton, Western Australia.

Giant Acorn Barnacle Feeding using Cirri, Balanus nubilus, Monterey, California; Arthropoda; Crustacea; Thoracica; Balanidae

Black sea urchin (Arbacia lixula) undersea, Aegean Sea, Greece, Skiathos island, Vasilias beach

Coral reefs such as this Moon coral, have intricate natural patterns in the shape of moon craters. Full frame background image.

Macro photography of the texture of a plant

Salad Coral. Sea life Macro, close up. Soft Coral reef Underwater photo Scuba Diver Point of View Red sea

Coral reef in aquarium for design purpose, wallpaper

$A feeding Fungiid Coral by night, probably a Fungia granulosa (quite thick septa, alternating long and short). \nFungia, also known as mushroom coral due to the distinctive mushroom-like appearance, is a type of solitary hard corals, meaning they grow individually and do not form colonies like some other coral species.\nTriton Bay, Indonesia \n3°54'2.976 S 134°6'24.192 E at 6m depth$

A close-up shot of dried hardened coral.

$Cala Fosca in Costa Brava\n\nParacentrotus lividus$

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