The Threeblotch Rabbitfish, Threeblotch Spinefoot, Threeblotched Rabbitfish, Three-blotched Spinefoot, Three-spot Rabbitfish, or Threespot Spinefoot (Siganus trispilos) is a species of rabbitfish found in the Indo-Pacific region. Known for its distinctive markings, this fish is a popular addition to saltwater aquariums.
Description & Characteristics
The Siganus trispilos is easily recognizable due to its vibrant coloration and unique markings. It exhibits a dark brown or grayish-brown body with three prominent white spots, giving it the name “Three-spot Rabbitfish.” These spots are positioned on the lateral line, one behind the pectoral fin, one midway down the body, and one near the tail fin. The fish possesses a laterally compressed body with a blunt head and small, protruding mouth. Adults can reach a maximum size of 25.0 cm.
Habitat and Occurrence
Siganus trispilos is a common inhabitant of coral reefs, rocky shores, and seagrass beds. It prefers shallow waters, typically residing at depths between 3.0 and 5.0 meters. These marine zones provide the fish with ample food sources and suitable shelter. The species is found throughout the Indo-Pacific region, extending from the Red Sea and East Africa to the Pacific Ocean. The wide distribution of Siganus trispilos makes it a widespread presence in these diverse aquatic ecosystems.
Taxonomy
The species Siganus trispilos belongs to the family Siganidae, which is part of the Order Acanthuriformes. This order falls under the Class Teleostei, encompassing a vast diversity of bony fish.
Feeding
Siganus trispilos is a herbivorous fish, primarily feeding on algae and aquatic plants. Its diet consists mainly of macroalgae, seagrass, and other plant matter found in its habitat. The fish’s diet is crucial in maintaining the balance of the reef ecosystem.
Image References