CR

Sand Tiger Shark

Carcharias taurus

DecliningCREUCREU

Overview

Carcharias taurus, commonly known as the sand tiger shark or grey nurse shark, is a large coastal shark species found in temperate and subtropical waters worldwide. These sharks are characterized by their distinctive protruding teeth and robust build, typically reaching lengths of 2-3 meters. Sand tiger sharks inhabit continental shelves, often found near rocky reefs, caves, and sandy bottoms from shallow waters to depths of approximately 200 meters.

They are known for their unique reproductive behavior, including intrauterine cannibalism where the largest embryo consumes its siblings. The species faces severe population declines globally, earning its Critically Endangered status on the IUCN Red List. Primary threats include overfishing, both targeted and as bycatch in commercial fisheries, habitat degradation, and their naturally low reproductive rate which makes population recovery extremely slow.

Sand tiger sharks mature late and produce very few offspring, making them particularly vulnerable to exploitation. Conservation efforts include fishing restrictions, marine protected areas, and international trade regulations under CITES Appendix II. Several countries have implemented specific protection measures, including fishing bans and habitat conservation programs.

Research and monitoring programs are ongoing to better understand population dynamics and migration patterns. Public education initiatives aim to reduce fear-based persecution and promote conservation awareness. Despite these efforts, continued population monitoring and enhanced protection measures are essential for the species' survival.

Sand tiger sharks face severe threats from commercial and recreational fishing, both as targeted catch and bycatch. Their extremely slow reproductive rate, with females producing only 1-2 pups every 2-3 years, makes populations highly vulnerable to overexploitation. Coastal habitat degradation and pollution further compound these pressures on remaining populations.

Threat summary

Habitat

Sand tiger sharks inhabit coastal waters along continental shelves, typically found near rocky reefs, underwater caves, and sandy bottoms. They occur in temperate and subtropical waters worldwide, ranging from shallow nearshore areas to depths of approximately 200 meters.

Marine oceanic· majorRocky areas· major

Conservation measures underway

Species managementSpecies recoveryAwareness & communicationsCompliance and enforcement

Frequently asked questions

Why is Sand Tiger Shark classified as Critically Endangered?
Sand Tiger Shark is classified as Critically Endangered — facing an extremely high risk of extinction in the wild — because population sizes are very small, declining sharply, or restricted to a tiny range. Sand tiger sharks face severe threats from commercial and recreational fishing, both as targeted catch and bycatch. Their extremely slow reproductive rate, with females producing only 1-2 pups every 2-3 years, makes populations highly vulnerable to overexploitation. Coastal habitat degradation and pollution further compound these pressures on remaining populations.
Where does Sand Tiger Shark live?
Sand Tiger Shark occurs in Algeria, Angola, Argentina, Australia, Bahamas, and Benin (plus 48 other countries). Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Sand Tiger Shark?
The main threats to Sand Tiger Shark are 11.1, 2.4, 5.3, and 5.4. The full IUCN-classified threat record for this species is detailed on the species page.

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