Innovative Technology Aims to Protect Endangered Orcas Using Undersea Fiber-Optic Cables

Wed Oct 15 2025 23:43:45 GMT+0300 (Eastern European Summer Time)

Researchers from the University of Washington are testing the use of fiber-optic cables to listen for orca vocalizations, hoping to enhance conservation efforts and protect these endangered marine mammals.

As scientists deployed over a mile of undersea fiber-optic cable near San Juan Island, they aimed to capture the sounds of orcas for better understanding of their behavior and responses to environmental changes. This innovative experiment could transform existing telecommunication infrastructure into a monitoring system for marine wildlife, potentially aiding conservation efforts for the endangered orca population in the Salish Sea.

SAN JUAN ISLAND, Wash. (AP) — As dawn broke over San Juan Island, researchers from the University of Washington prepared to deploy over a mile of fiber-optic cable into the depths of the Salish Sea. This ambitious project seeks to utilize existing undersea telecommunications infrastructure to create a system capable of listening in on orca vocalizations, essential for understanding their behavior and responses to environmental changes.

The project employs a technology known as Distributed Acoustic Sensing (DAS), which can turn fiber-optic cables into extensive monitoring systems. As orcas communicate through clicks and calls at high frequencies, capturing these sounds could provide invaluable data for conservationists addressing issues such as noise pollution from shipping.

According to Scott Veirs from Beam Reach Marine Science and Sustainability, the integration of this technology can enhance how we manage and conserve orca populations, especially given the dire circumstances they face—including limited food sources and increasing environmental disturbances.

“By understanding their movements, we can implement strategies to reduce infringement from human activities,” he stated.

The researchers have already shown success in monitoring large baleen whales through similar techniques, having recorded fin and blue whale sounds off the Oregon coast. The challenge lies in the orcas' higher frequency calls, which have yet to be fully assessed with DAS technology.

With orcas being such an iconic and endangered species, this research initiative posits that effective monitoring systems could greatly influence conservation strategies. The team is not just hoping to track numbers but also to establish a comprehensive understanding of orca dynamics, hunting behaviors, and how these factors are impacted by marine conditions.

The project's success could lead to a wide-scale implementation of such technology globally, utilizing the estimated 870,000 miles of undersea cables already laid across the oceans, thus potentially contributing to major advancements in marine conservation efforts all around the world.

With climate change and habitat loss putting immense pressure on orca populations, this innovative use of technology could play a critical role in ensuring their survival.