Wild Hammerhead Shark Coastal Nursery Protection

Hammerhead sharks use shallow coastal nurseries as juveniles, and these critical habitats require protection from fishing and development.

Key Facts

Great, scalloped, and smooth hammerhead sharks are all listed as Endangered or Critically Endangered by IUCN
Juvenile hammerheads use shallow estuarine and coastal areas as nurseries where larger predators are less common
Coastal development, fishing pressure, and shark nets threaten nursery habitats in tropical and subtropical regions
Hammerheads are among the most frequently captured sharks in bycatch from both target and non-target fisheries
Their electroreceptors allow detection of electrical fields - essential for prey detection and navigation
Hammerheads have relatively few offspring compared to other sharks, making population recovery slow
Marine protected areas that encompass nursery habitats provide disproportionate population-level benefit

Welfare Considerations

Juvenile hammerheads caught in fishing gear and shark nets experience acute stress, physical trauma, and often death. Habitat loss from coastal development removes the shallow-water refugia that young sharks need to survive their most vulnerable life stage. Protecting nursery areas protects entire population cohorts, as loss of juvenile survival severely constrains population recovery.

What You Can Do

Support marine protected area designations that include hammerhead nursery habitats
Advocate against shark fin trade that creates demand for hammerhead fishing
Choose seafood from fisheries with low shark bycatch rates
Donate to hammerhead research programs that track nursery use and juvenile survival
Learn about electroreception in hammerheads to appreciate their remarkable sensory biology