The Thumbprint Emperor, Blackpatch Emperor, Black Blotch Emperor, or Black-blotch Emperor (Lethrinus harak) is a species of emperor fish belonging to the family Lethrinidae. These fish are known for their distinctive appearance and are found in a variety of marine habitats.
Description & Characteristics
Lethrinus harak is characterized by its elongated, oval body shape and a slightly compressed head. The fish typically reaches a maximum size of 54.9 cm. It is commonly identified by its unique dark blotch or patch situated on the upper part of the body, behind the head, giving rise to several of its common names. The color of the fish can vary, but it typically displays a mix of brown, grey, and yellow tones.
Habitat and Occurrence
The Thumbprint Emperor, Blackpatch Emperor, Black Blotch Emperor, or Black-blotch Emperor (Lethrinus harak) is commonly found in shallow coastal waters, with a depth range of 0.0 to 20.0 meters. It is typically found in the tropical Indo-Pacific region, making it a common sight in the Indian Ocean, the western Pacific Ocean, and the Red Sea. The species prefers environments with rocky reefs, coral reefs, and seagrass beds, where it can find shelter and ample food sources.
Taxonomy
The species Lethrinus harak belongs to the Class: Teleostei, Order: Eupercaria incertae sedis, and Family: Lethrinidae. This family is further classified within the Perciformes order, which contains a diverse range of bony fishes.
Feeding
The Thumbprint Emperor, Blackpatch Emperor, Black Blotch Emperor, or Black-blotch Emperor (Lethrinus harak) is an opportunistic carnivore. Its diet primarily consists of a variety of crustaceans, including shrimps and crabs, as well as small fishes, invertebrates, sea urchins, starfish, worms, zoobenthos, and zooplankton. The fish utilizes its strong jaws and teeth to efficiently crush and consume its prey.
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