The Indonesian Shortfin Eel, scientifically known as Anguilla bicolor, is a fascinating species of eel found in the Indo-Pacific region. They are a prominent inhabitant of various marine zones, including the subtidal, sublittoral, and infralittoral zones, extending to the deep zone of the oceans from the lower limit of the intertidal zone down to the shelf edge at approximately 200 meters.
Description & Characteristics
The Indonesian Shortfin Eel can reach a maximum size of 123.0 cm in length. Their body is elongated and cylindrical, typical of eels, with a slightly compressed tail. They possess a dorsal fin that extends from the head to the tail, merging with the anal fin to form a continuous fin along the ventral side of the body. The Indonesian Shortfin Eel is characterized by its short pectoral fins and a small, pointed snout. Their coloration varies, typically ranging from brown to greenish-brown, with darker markings along the body.
Habitat and Occurrence
The Indonesian Shortfin Eel is a common species in the Indo-Pacific region, particularly in neritic marine zones. Their preferred habitat is within the Subtidal, sublittoral, infralittoral, and deep zones of the oceans, extending from the lower limit of the intertidal zone to the shelf edge at about 200 m water depth. They are found in a variety of bottom types, including sand, mud, and rocky reefs.
Taxonomy
The Indonesian Shortfin Eel, Anguilla bicolor, is classified within the Class: Teleostei, Order: Anguilliformes, and Family: Anguillidae. This categorization places them within the larger group of bony fishes, specifically those belonging to the order of eels, further belonging to the Anguillidae family.
Feeding
The Indonesian Shortfin Eel is a carnivorous species that feeds on a diverse range of invertebrates, including clams, crabs, crustaceans, edible crab, shrimp, and snails. Their diet is adapted to their benthic habitat, where they actively hunt for prey within the sediment or on the seafloor.
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