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The common starfish, common sea star or sugar starfish (Asterias rubens) is the most common and familiar starfish in the north-east Atlantic. Belonging to the family Asteriidae , it has five arms and usually grows to between 10–30 cm across, although larger specimens (up to 52 cm across) are known.
The background colour is variable and may be brownish or greenish-grey, tinged with yellow or red and sometimes with purple at the tips of the arms. This species can grow to 70 cm (28 in) but a more usual size is 25 to 30 cm (10 to 12 in). It is sometimes confused with the northern starfish Leptasterias muelleri. [3]
Printable version; In other projects ... These starfish have between 6 and 16 long, ... They are 40 times the size of disk radius and have 7–20 flexible spiny arms. [5]
Members of this family live on hard surfaces at depths between 100 and 4,500 m (300 and 14,800 ft). They raise their arms vertically above their discs to filter feed on suspended organic particles drifting past.
Oreaster reticulatus, commonly known as the red cushion sea star or the West Indian sea star, is a species of marine invertebrate, a starfish in the family Oreasteridae. It is found in shallow water in the western Atlantic Ocean and the Caribbean Sea.
Labidiaster annulatus is found around the Antarctic Peninsula, South Georgia and the South Sandwich Islands.The depth range is from the intertidal zone down to 554 metres (1,818 ft) but this starfish most commonly occurs between 30 and 400 metres (98 and 1,312 ft).
Linckia columbiae is a species of starfish in the family Ophidiasteridae. It is found in the East Pacific where it ranges from California (USA) to northwest Peru, including offshore islands such as the Galápagos. [3] Common names include fragile star, Pacific comet sea star and variable sea star.
Fecundity in female crown-of-thorns starfish is related to size, with large starfish committing proportionally more energy into ova production such that: [45] A 200-mm-diameter female produces 0.5–2.5 million eggs, representing 2–8% of her wet weight. A 300-mm-diameter female produces 6.5–14 million eggs, representing 9–14% of her wet ...