Banded needlefish – Strongylura leiura

Strongylura leiura, also known as the Longjaw Needlefish, is a species of needlefish found in various marine environments. These fish are characterized by their elongated, slender bodies and distinctive needle-like jaws. Strongylura leiura is a common inhabitant of coastal waters, estuaries, and lagoons, demonstrating its adaptability to different saline conditions.

Description & Characteristics

Strongylura leiura is a streamlined fish with a silver-grey body, often tinged with blue or green hues. The most striking feature of this species is its long, pointed snout, which extends far beyond the lower jaw, giving it its common name. These needle-like jaws are lined with sharp, needle-like teeth, perfectly suited for catching prey. The dorsal and anal fins are located towards the rear of the body, while the pectoral fins are positioned high on the sides. The maximum recorded size for Strongylura leiura is 100.0 cm, though they typically reach smaller lengths.

Habitat and Occurrence

Strongylura leiura is primarily a coastal species, preferring shallow waters and estuaries. They are often found in areas with abundant vegetation and rocky reefs, providing cover and foraging opportunities. This needlefish species is generally associated with the epipelagic zone, inhabiting depths ranging from the surface to 3.0 meters. This depth preference allows them to exploit the rich food sources found in these shallower waters.

Taxonomy

The species Strongylura leiura belongs to the Class: Teleostei, Order: Beloniformes, and Family: Belonidae. This classification places it within the diverse group of bony fishes, specifically within the order of needlefish and their relatives, and the family that encompasses all needlefish species.

Feeding

Strongylura leiura is a carnivorous species, primarily feeding on small fishes, crustaceans, and other invertebrates. Its long, pointed snout allows it to dart quickly and accurately, catching prey with lightning speed. Their needle-like teeth ensure a firm grip, and their powerful jaws crush prey with ease. Their diet often reflects the abundance of prey species in their specific habitat, indicating a high degree of adaptability to different food sources.