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Species Encyclopedia: Blue Ring Angelfish

Time:2022-11-29 19:35:16 source:ucutxmastrees.com author:Beast Read:741次
Species Encyclopedia: Blue Ring Angelfish

The blue-ringed angelfish, also known as the shoulder-ringed crappie, the ringed angelfish, is a genus of crappie of the family Butterflyfish of the suborder Perciformes. It is a warm-water coral reef fish with a body length of about 30 cm, which is the larger of the crappie fish. It is distributed between the Tropic of Cancer and the Tropic of Cancer in the western Indian Ocean and the Pacific Ocean. China is found in the Paracel Islands and the Taiwan Strait. Inhabits seafloor rocks, coral reefs, and other offshore areas with hard bottoms at a depth of 5-15 meters. The body is slightly tall and oval, with a slightly prominent back profile, and the back of the head is straight above the eyes. The posterior and lower margins of the preopercle are weakly serrated, with a long spine. The adult fish has a yellowish-brown or grayish-brown body, with multiple annular bands extending from the body to the back of the dorsal fin. Two similar blue horizontal stripes run across the face. There is another blue ring about the diameter of the eye above the operculum and at the front of the lateral line. The soft rays of the dorsal and anal fins are dark with blue stripes; the caudal fin is white mixed with bright yellow edges. Juveniles and adults differ greatly in body color. Juveniles are orange-red to reddish-brown, and there are 3-5 dark blue arc-shaped stripes from the base of the pectoral fin to the upper and rear of the soft rays of the dorsal fin, and several crescent-shaped narrow white horizontal bands on the side of the body. Juveniles live above adult water layers, in rocky reefs with short filamentous algae or in shallow waters where coral matrix is ​​deposited. The blue-ringed angelfish is an omnivorous fish that feeds on plankton, sponges, algae and corals. At night, they gather in pairs in caves on the sea floor and feed alone or in pairs during the day.

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