Blackmargined damsel – Pomacentrus nigromarginatus

The Blackmargined Damsel, Black-margined Damsel, scientifically known as Pomacentrus nigromarginatus, is a small, colorful fish species found in the coral reefs of the Indo-Pacific region. This fish is a popular choice for aquariums due to its vibrant coloration and relatively peaceful nature.

Description & Characteristics

The Pomacentrus nigromarginatus is characterized by its striking black margin along the edges of its fins, which gives it its common name. It has a bright yellow body with blue stripes running vertically along its sides. This species can reach a maximum size of 8.0 cm, making it a relatively small fish. Its body is typically elongated and laterally compressed, a common feature among damselfish.

Habitat and Occurrence

The Blackmargined Damsel, Black-margined Damsel, Pomacentrus nigromarginatus, is primarily found in the Indo-Pacific region. It prefers coral reefs and rocky shores, typically residing at depths ranging from 20.0 to 50.0 meters. It is often observed in the reef zones and is known to inhabit areas with dense coral cover and ample food sources.

Taxonomy

Pomacentrus nigromarginatus belongs to the Class: Teleostei, Order: Ovalentaria incertae sedis, and Family: Pomacentridae. The Teleostei class encompasses the vast majority of ray-finned fishes, while the Ovalentaria incertae sedis order includes a wide variety of bony fishes with uncertain relationships. The Pomacentridae family, also known as the damselfish family, contains a large number of species characterized by their small size, bright colors, and territorial behavior.

Feeding

The Blackmargined Damsel, Black-margined Damsel, Pomacentrus nigromarginatus, is an omnivore, feeding on a variety of organisms found in its reef habitat. Its diet primarily consists of algae, but it also consumes invertebrates such as amphipods, copepods, and brine shrimps. It may also feed on fish eggs, krill, lobster eggs, and zooplankton. This diverse diet helps the Pomacentrus nigromarginatus thrive in the diverse ecosystem of the coral reef.