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In zoology, deep-sea gigantism or abyssal gigantism is the tendency for species of deep-sea dwelling animals to be larger than their shallower-water relatives across a large taxonomic range. Proposed explanations for this type of gigantism include necessary adaptation to colder temperature, food scarcity, reduced predation pressure and ...
Some species of other reef inhabitants prey on this species of sea star. Various pufferfishes, Charonia species (triton shells), harlequin shrimp, and even some sea anemones have been observed to eat whole or parts of the sea stars. [3] The Blue Linckia is also prone to parasitization by a species of the parasitic gastropod Thyca crystallina.
An abyssal plain is an underwater plain on the deep ocean floor, usually found at depths between 3,000 meters (9,800 ft) and 6,000 meters (20,000 ft).Lying generally between the foot of a continental rise and a mid-ocean ridge, abyssal plains are among the flattest, smoothest and least explored regions on Earth. [1]
Protoreaster nodosus, commonly known as the horned sea star or chocolate chip sea star, [1] is a species of sea star found in the warm, shallow waters of the Indo-Pacific region. They are sometimes seen in the marine aquarium trade or dried and sold as curios.
Protoreaster lincki, the red knob sea star, red spine star, African sea star, [1] or the African red knob sea star, [2] is a species of starfish from the Indian Ocean. [ 3 ] [ 4 ] Description
The nine-armed sea star is a scavenger and a predator and examination of the stomach contents show that the diet consists primarily of molluscs, small crustaceans and polychaete worms. Many of the food items were swallowed whole and had been ingested by the starfish everting its stomach and engulfing its prey. [ 4 ]
Choriaster granulatus is a large sea star with a convex body and five short arms. The arms have rounded tips, making it appear "phallic", leading to one of its common names being "the doughboy starfish". Relatively large in comparison with other sea stars, its maximum radius is about 27 centimetres (11 in).
Pisaster giganteus, the giant sea star, giant spined star, or knobby sea star is a species of sea star that lives along the western coast of North America from Southern California to British Columbia. It makes its home on rocky shores near the low tide mark. It preys on mollusks. It can grow as large as 24 in (61 cm) in diameter.