Story perspectives

New Fiber-Optic Cable Aims to Save Endangered Orcas

10/17/2025

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Summary

Story summary

Scientists deployed a 1.3-mile fiber-optic cable in the Salish Sea to monitor endangered Southern Resident orcas, whose population is around 75, using Distributed Acoustic Sensing to track movements in real time.
The effort targets threats to the orcas, including noise pollution and the decline of Chinook salmon populations, which have fallen 60% since 1984.
If successful, the DAS approach could enhance conservation efforts and inform policies to protect these whales.

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Story summary

Scientists deployed a 1.3-mile fiber-optic cable in the Salish Sea to monitor endangered Southern Resident orcas, whose population is around 75, using Distributed Acoustic Sensing to track movements in real time.
The effort targets threats to the orcas, including noise pollution and the decline of Chinook salmon populations, which have fallen 60% since 1984.
If successful, the DAS approach could enhance conservation efforts and inform policies to protect these whales.