The Tawny Nurse Shark, scientifically known as Nebrius ferrugineus, is a distinctive species of shark belonging to the family Ginglymostomatidae. This shark, characterized by its unique coloration and sluggish behavior, is a fascinating inhabitant of the Indo-Pacific region.
Description & Characteristics
The Tawny Nurse Shark stands out with its distinctive reddish-brown to tan coloration, often bearing darker blotches and spots. This coloration effectively camouflages the shark against the coral reefs and rocky crevices it calls home. The Nebrius ferrugineus is a robust shark, typically reaching a maximum size of 320.0 cm. Its body is elongated, with a broad, flattened head and a short, blunt snout.
Habitat and Occurrence
The Tawny Nurse Shark is a common sight in the Indo-Pacific region. It prefers shallow, inshore waters, often found in coral reefs, rocky bottoms, and seagrass beds. This species typically occupies a depth range of 0.0 – 70.0 meters, making it a resident of the neritic zone, the marine environment extending from the shoreline to the edge of the continental shelf.
Taxonomy
The species Nebrius ferrugineus belongs to the Class: Elasmobranchii, which includes sharks, rays, and skates. It falls under the Order: Orectolobiformes, a group commonly known as carpet sharks. The family: Ginglymostomatidae encompasses nurse sharks, which are known for their bottom-dwelling lifestyle and the characteristic barbels around their mouths.
Feeding
The Tawny Nurse Shark is a skilled predator, exhibiting a specialized diet. Its preferred prey includes a diverse range of coralfish of all kinds, crustaceans, and smaller fishes. Its strong jaws and sharp teeth are well-suited for crushing shells and bones. It also feeds on sea urchins, showcasing its versatility and adaptation to various food sources. The Nebrius ferrugineus is considered a food specialist, demonstrating a preference for specific prey items.
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