Dwarf Sawfish

Pristis clavata is a distinctive ray characterized by its elongated, tooth-studded rostrum, used to detect and disable prey buried in sediment or schooling in the water column. Reaching lengths of around 3.2 meters, this species has a shark-like body and typically forages on small fish and crustaceans in shallow waters. As a benthic predator, it plays a role in structuring prey communities within coastal and estuarine ecosystems, and juveniles rely heavily on mangrove-lined nursery habitats for shelter from predators.

The species occurs in coastal and estuarine waters across the Indo-West Pacific, with strongholds in northern Australia and records from Papua New Guinea, Solomon Islands, Indonesia, Malaysia, India, and Réunion. It inhabits shallow marine coastal zones and subtropical/tropical mangrove forests, particularly turbid river mouths and tidal flats used as nursery grounds.

Population declines stem from a combination of pressures. The rostrum's teeth easily entangle in nets, making the species highly vulnerable to commercial and artisanal fishing bycatch, while targeted fishing for fins and rostra—the latter sold as curios—adds direct exploitation pressure. Coastal development, agricultural expansion, and logging degrade and fragment mangrove nurseries, while sedimentation and declining water quality further compromise juvenile habitat.

These threats are ongoing and largely unregulated across much of its range.

Conservation measures include international trade restrictions under CITES Appendix I, protected status in Australian waters, and some habitat protections within marine parks. Research programs track population status and habitat use to inform management.

Despite these measures, the species remains Critically Endangered with a decreasing population trend. Continued bycatch, habitat loss, and weak enforcement across much of its range suggest that without expanded protections, recovery prospects remain poor.

The dwarf sawfish inhabits shallow coastal waters, estuaries, and river mouths across the Indo-Pacific region, typically in depths less than 40 meters. Juveniles rely heavily on protected inshore nursery areas with soft substrates where they can forage for small fish and invertebrates.