starry skate of the Antarctic shelf

Size
Length: 80–120 cm, Weight: 10–25 kg
Lifespan
15–25 years
Diet
Feeds on small fish, crustaceans and squid. Glides over seafloor using wing-like pectoral fins to stir up prey. Crushes shellfish with powerful jaws and grinding teeth adapted for hard shells.
Habitat
Deep waters of subantarctic continental shelf and slope. Typically between 100 and 800 metres depth. Prefers cold nutrient-rich waters with sandy or muddy bottoms near seamounts.
Range
Found in subantarctic waters around Auckland Islands, Campbell Island and Snares. Also found around Antarctica and South America. Rare visitor to mainland New Zealand waters seasonally.
Endemism
Native
Main Threats
None significant as species is not targeted by commercial fisheries in New Zealand. Localised threats include bycatch in deep-sea trawl fisheries and climate change affecting subantarctic ecosystems.
Population
Deep-water visitor to New Zealand's subantarctic islands. Rarely seen by humans. Lives in cold dark waters of Southern Ocean. Disc covered in tiny star-like denticles giving velvety texture and common name.
Conservation Status
Not Threatened
Velvet ghost of the Southern Ocean. A skate that feels like velvet. Its disc is covered in tiny star-like spines. These give it a soft, velvety texture. It glides over the seafloor. It crushes shellfish with its powerful jaws. It is rarely seen. It lives in the cold, dark depths of the subantarctic. A skate that is soft to the touch. The sensation is unexpected. The appearance is rough. The reality is smooth. The body is flattened and diamond-shaped. Wing-like pectoral fins undulate as it swims. The tail is long and slender. Two small dorsal fins sit near the tip. The eyes are set high on the head. This allows the skate to see above while resting on the bottom. The colour is mottled brown or grey. It provides camouflage against the sediment. The adaptation is visual. The function is survival. The pattern blends. The predator passes. It is a bottom-dweller. It spends most of its life in contact with the seafloor. It uses its pectoral fins to stir up sediment. This exposes buried prey. When it finds a clam or a crab, it crushes the shell. Powerful jaws do the work. Teeth fused into crushing plates grind the fragments. The mechanism is efficient. The diet is hard-shelled. The digestion is thorough. The energy is extracted. The skate reproduces by laying eggs. The egg case is a leathery capsule. It is often called a mermaid's purse. Four long horns anchor it to seaweed or rocks. The female lays these capsules in shallow water. The young develop inside for months. They hatch as miniature versions of the adults. The cycle is slow. The protection is physical. The horns hold fast. The current tests them. The embryo grows. The release is timed. Not targeted by commercial fisheries in New Zealand. The Antarctic starry skate is occasionally caught as bycatch in deep-sea trawls. The subantarctic sea is cold. The starry skate glides over the seafloor. Velvety and soft. Star-like spines on its disc. The trawl net drags. The skate is caught. Then returned to the water, if it is lucky. It does not know it is a ghost. It does not know it is velvet. The indifference is total. The impact is incidental. It just wants to crush a clam. They have been here for millions of years. They will be here as long as the Southern Ocean stays cold. The Antarctic starry skate is proof. The longevity is geological. The presence is constant. The temperature defines the range. The cold is the barrier. The ice is the boundary. It stays within. It thrives there. It carries on.