The Ctenogobiops tongaensis, also known as the Tonga Goby, is a small species of fish belonging to the Gobiidae family. It is a common sight in various marine habitats, particularly in the intertidal zone.
Description & Characteristics
The Ctenogobiops tongaensis is a relatively small fish, reaching a maximum size of 3.9 cm. Its body is elongated and slender, with a distinctive pointed snout and large eyes. The coloration of this goby varies depending on its environment, but typically features a combination of brown, grey, and white hues. The Ctenogobiops tongaensis has a unique feature – a pair of fused pelvic fins that form a suction disc, which allows it to cling to rocks and other surfaces.
Habitat and Occurrence
The Ctenogobiops tongaensis is a common inhabitant of the Intertidal (Eulittoral) zone, the intertidal zone between the high and low tide lines characterized by the alternation of low and high tides. This species can be found in a variety of habitats within this zone, including port facilities, rubble floors, and sandy seafloors. The Ctenogobiops tongaensis thrives in shallow water depths ranging from 0.0 to 3.0 meters.
Taxonomy
The Ctenogobiops tongaensis belongs to the Class: Teleostei, Order: Gobiiformes, and Family: Gobiidae. This classification places it within a large and diverse group of fish that are characterized by their small size, fused pelvic fins, and typically benthic (bottom-dwelling) lifestyle.
Feeding
The Ctenogobiops tongaensis is a carnivore and feeds primarily on a variety of small invertebrates, including copepods, crustacean larvae, echinoderm larvae, worms, and zooplankton. Its diet also includes zoobenthos, which are organisms that live on the bottom of the seafloor. The Ctenogobiops tongaensis uses its sharp teeth to capture and consume its prey.
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