Atlantic Shark Institute tags its first-ever hammerhead shark off coast of Rhode Island

The Atlantic Shark Institute reached a research milestone this week by successfully tagging a smooth hammerhead shark off the coast of Rhode Island. This event marks the first time the nonprofit has tagged this species in local waters. The team initially encountered a large endangered scalloped hammerhead while searching for sandbar sharks near Block Island, though they were unable to secure that specific specimen.

Jon Dodd, executive director of the institute, notes that shifting water temperatures are drawing shark species typically found in southern climates further north. The arrival of these animals in New England waters presents new data opportunities for researchers who monitor migration patterns, nursery grounds, and habitat usage. The institute relies on satellite and acoustic tracking to build a long-term profile of shark movements along the East Coast.

The research project requires careful selection of specimens to ensure data quality. Dodd explains that the organization prioritizes tagging multiple individuals within a single species rather than spreading efforts thin across too many varieties. This strategy provides more reliable information regarding residency and seasonal shifts. The recently tagged six-foot female hammerhead will be tracked for up to a decade, providing critical insights into how these predators interact with changing coastal ecosystems.

This work is part of a broader program that has documented between 10 and 15 shark species across the region. As ocean conditions continue to change, tracking these apex predators helps scientists understand the health of the marine environment. The Atlantic Shark Institute remains active in its tagging efforts throughout the summer, continuing their mission to provide public data on shark populations and their presence in the North Atlantic.