The Blackstripe Cardinalfish (Ostorhinchus nigrofasciatus) is a captivating species of fish belonging to the cardinalfish family (Apogonidae). This fish is renowned for its striking appearance and intriguing behavior, making it a fascinating subject of study for marine biologists and enthusiasts alike.
Description & Characteristics
The Blackstripe Cardinalfish is a relatively small fish, reaching a maximum size of 10.0 cm. The most defining feature of this species is the prominent black stripe running along its body, a characteristic that gives it its common name. This stripe contrasts sharply with the silvery-grey coloration of the fish’s body, further enhancing its visual appeal.
Habitat and Occurrence
The Blackstripe Cardinalfish is a versatile inhabitant of marine environments, found in a range of depths from 3.0 to 50.0 meters. This adaptability allows it to thrive in both shallow subtidal zones and deeper sublittoral and infralittoral regions. It is commonly found in the neritic zone, which encompasses the waters over the continental shelf, extending from the lower limit of the intertidal zone to the shelf edge at about 200 m water depth.
Taxonomy
The Blackstripe Cardinalfish (Ostorhinchus nigrofasciatus) belongs to a diverse group of fish known as the cardinalfishes, classified within the family Apogonidae. This family is further situated within the Order Kurtiformes, which in turn belongs to the Class Teleostei. This classification reflects the evolutionary relationships and shared characteristics among these fishes.
Feeding
The Blackstripe Cardinalfish is an opportunistic carnivore, relying on a varied diet of small invertebrates and zooplankton. This includes a wide range of prey items such as amphipods, copepods, Daphnia salina, krill, mysids, and other zooplankton. Their feeding habits contribute to the balance of the marine ecosystem.
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