Florida, USA – Scientists from Florida Atlantic University’s Harbor Branch Oceanographic Institute have successfully used innovative biologging tags to study whitespotted eagle rays in their natural habitat.

This new non-invasive tracking method attaches multi-sensor devices to stingrays, capturing movement, sound, video, and location data. The tags remain attached for up to 60 hours, the longest recorded on pelagic rays.

“These animals are powerful, fast-moving and live in dynamic, high-energy environments, which makes tagging them a real challenge,” said Matt Ajemian, Ph.D., senior author and director of the Fisheries Ecology and Conservation Lab.

The research reveals detailed behaviors, including how stingrays feed on hard-shelled prey like clams and conch. Camera footage and sound recordings help scientists understand their feeding and social interactions, which were previously difficult to observe.

A key innovation is the fast and minimally invasive attachment system using silicone suction cups and straps placed near the rays’ spiracles, improving tag retention.

Cecilia M. Hampton, a Ph.D. student involved in the study, said, “We’re beginning to map out entire behavioral landscapes, from foraging strategies to social dynamics. These insights are vital for understanding how rays respond to environmental change and how best to protect them.”

The tagging system could be adapted to other ray species, aiding long-term ecological monitoring in marine environments.

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