Bramble Shark

The Bramble Shark is a large, heavy-bodied deep-water shark distinguished by its sparse covering of thorn-like denticles, from which its genus name derives, rather than the more typical dermal denticle coverage of other sharks. It lacks an anal fin and has two small, spineless dorsal fins set far back on its body. Sluggish and bottom-dwelling, it feeds on a range of prey including smaller sharks, bony fishes, and crustaceans, and likely plays a role as an opportunistic predator and scavenger in deep coastal and continental shelf ecosystems.

This species has a wide but patchy global distribution, recorded from the coastal and continental shelf waters of France, Spain, Portugal, the United Kingdom, Ireland, Belgium, Jersey, South Africa, Namibia, Senegal, Mauritania, Libya, Iran, Oman, India, the Maldives, Japan, Australia, New Zealand, the United States, Mexico, Venezuela, and Brazil. It typically inhabits marine coastal and supratidal zones, as well as deeper shelf and slope waters.

The species is classified as Endangered, with a decreasing population trend. Its slow reproductive rate and limited depth range make it highly vulnerable to bycatch in commercial fishing operations, including bottom trawls and longlines, which continue to reduce its numbers across much of its range. Regional instability, including war, civil unrest, and military exercises in parts of its range, has further disrupted monitoring and enforcement of protective measures.

Conservation efforts remain limited and largely indirect, relying on general fisheries management, bycatch reduction measures, and some regional protections within marine protected areas. Dedicated species-specific management plans are scarce. Given ongoing fishing pressure, low reproductive capacity, and gaps in enforcement, the population is expected to continue declining unless targeted management and monitoring are strengthened across its range.