Cascadia Listening Post

Orcasound hydrophone network

Continuous hydrophone audio from the Salish Sea, analysed for killer whale call presence and ecotype consistency.

33 published reports6 active of 8 known4,767 usable hours recorded in manifests57 data-bearing days recorded

Where it listens

Orcasound Bush Point

48.03°N, 122.61°W · Admiralty Inlet, off Whidbey Island

active

Orcasound North San Juan Channel

48.62°N, 123.09°W · north San Juan Channel

active

Orcasound publishes no lat/lon for this node and names Reuben Tarte County Park as the nearest public access. These are the park's coordinates, not the hydrophone's; the node sits offshore of it in north San Juan Channel at roughly 11.5 m.

Orcasound Lab, Haro Strait

48.56°N, 123.17°W · Haro Strait, west side of San Juan Island

active

Orcasound Port Townsend

48.14°N, 122.76°W · Admiralty Inlet, Fort Worden pier, Port Townsend

active

Orcasound Beach Camp at Sunset Bay

47.87°N, 122.33°W · Possession Sound, central Puget Sound between Edmonds and Mukilteo

active

Orcasound Andrews Bay

48.55°N, 123.17°W · Haro Strait, west side of San Juan Island near San Juan County Park

active

Orcasound MaST Center

47.35°N, 122.32°W

inactive node offline upstream; acoustic signal stopped 2026-07-12, segments continued until 2026-07-17

Orcasound Point Robinson

47.39°N, 122.38°W

inactive hydrophone sediment-buried; the node streams but carries no usable signal. Measured 2026-09-15 over 90 windows: 60 Hz sits 44.9 dB over the broadband floor against 14.1 dB at the worst healthy node, and crest is 9.3 dB against 20.0 to 30.2 dB. signal_health.classify reads hum_dominated.

No false-positive floor is recorded in these reports' manifests. A label shown without a measured floor at its own site is a model output, not a rate.

Reports

OrcaHello. Binary call-presence detector. It does not identify pod, individual, or call type.

Ecotype classifier. Reports which population a call is more consistent with. It is a comparison, not a determination. Its authors found it less reliable on hydrophones other than those it was trained on; Orcasound is one of those it was trained on.

October 2026

  1. H Hydrophone
    Orcasound hydrophones, 2026-10-26 6 sites · 140 hours usable, 1 day
    Model candidate
  2. H Hydrophone
    Orcasound hydrophones, 2026-10-25 6 sites · 140 hours usable, 1 day
    Model candidate
  3. H Hydrophone
    Orcasound hydrophones, 2026-10-24 6 sites · 139 hours usable, 1 day
    Model candidate
  4. H Hydrophone
    Orcasound hydrophones, 2026-10-23 6 sites · 120 hours usable, 1 day
    Model candidate
  5. H Hydrophone
    Orcasound hydrophones, 2026-10-22 6 sites · 112 hours usable, 1 day
    Model candidate
  6. H Hydrophone
    Orcasound hydrophones, 2026-10-21 6 sites · 115 hours usable, 1 day
    Model candidate
  7. H Hydrophone
    Orcasound hydrophones, 2026-10-20 6 sites · 109 hours usable, 1 day
    Model candidate
  8. H Hydrophone
    Orcasound hydrophones, 2026-10-19 6 sites · 100 hours usable, 1 day
    Model candidate
  9. H Hydrophone
    Orcasound hydrophones, 2026-10-18 6 sites · 118 hours usable, 1 day
    Model candidate
  10. H Hydrophone
    Orcasound hydrophones, 2026-10-17 6 sites · 140 hours usable, 1 day
    Model candidate
  11. H Hydrophone
    Orcasound hydrophones, 2026-10-16 6 sites · 131 hours usable, 1 day
    Model candidate
  12. H Hydrophone
    Orcasound hydrophones, 2026-10-12 6 sites · 113 hours usable, 1 day
    Model candidate

September 2026

  1. H Hydrophone
    Orcasound hydrophones, 2026-09-23 6 sites · 136 hours usable, 1 day
    Model candidate
  2. H Hydrophone
    Orcasound hydrophones, 2026-09-22 6 sites · 136 hours usable, 1 day
    Model candidate
  3. H Hydrophone
    Orcasound hydrophones, 2026-09-21 6 sites · 137 hours usable, 1 day
    Model candidate
  4. H Hydrophone
    Orcasound hydrophones, 2026-09-20 6 sites · 135 hours usable, 1 day
    Model candidate
  5. H Hydrophone
    Orcasound hydrophones, 2026-09-19 6 sites · 138 hours usable, 1 day
    Model candidate
  6. H Hydrophone
    Orcasound hydrophones, 2026-09-18 6 sites · 133 hours usable, 1 day
    Model candidate
  7. H Hydrophone
    Orcasound hydrophones, 2026-09-17 6 sites · 136 hours usable, 1 day
    Model candidate
  8. H Hydrophone
    Orcasound hydrophones, 2026-09-16 6 sites · 135 hours usable, 1 day
    Model candidate
  9. H Hydrophone
    Orcasound hydrophones, 2026-09-15 6 sites · 85 hours usable, 1 day
    Model candidate
  10. H Hydrophone
    Orcasound hydrophones, 2026-09-13 Bush Point · North San Juan Channel · Lab, Haro Strait · 71 hours usable, 1 day
    Model candidate
  11. H Hydrophone
    Orcasound hydrophones, 2026-09-12 Bush Point · North San Juan Channel · Lab, Haro Strait · 71 hours usable, 1 day
    Model candidate
  12. H Hydrophone
    Orcasound hydrophones, 2026-09-11 Bush Point · North San Juan Channel · Lab, Haro Strait · 71 hours usable, 1 day
    Model candidate
  13. H Hydrophone
    Orcasound hydrophones, 2026-09-10 Bush Point · North San Juan Channel · Lab, Haro Strait · 71 hours usable, 1 day
    Model candidate
  14. H Hydrophone
    Orcasound hydrophones, 2026-09-09 Bush Point · North San Juan Channel · Lab, Haro Strait · 68 hours usable, 1 day
    Model candidate
  15. H Hydrophone
    Orcasound hydrophones, 2026-09-08 Bush Point · North San Juan Channel · Lab, Haro Strait · 71 hours usable, 1 day
    Model candidate
  16. H Hydrophone
    Orcasound hydrophones, 2026-09-07 Bush Point · North San Juan Channel · Lab, Haro Strait · 65 hours usable, 1 day
    Model candidate
  17. H Hydrophone
    Orcasound hydrophones, 2026-09-06 Bush Point · North San Juan Channel · Lab, Haro Strait · 71 hours usable, 1 day
    Model candidate
  18. H Hydrophone
    Orcasound hydrophones, 2026-09-05 Bush Point · North San Juan Channel · Lab, Haro Strait · 71 hours usable, 1 day
    Model candidate
  19. H Hydrophone
    Orcasound hydrophones, 2026-08-28 to 2026-09-02 Bush Point · North San Juan Channel · Lab, Haro Strait · 425 hours usable, 6 days
    Model candidate

August 2026

  1. H Hydrophone
    Salish Sea hydrophones, 2026-08-24 to 2026-08-26 Lab, Haro Strait · Bush Point · North San Juan Channel · 209 hours usable, 3 days
    Classification
  2. H Hydrophone
    Salish Sea hydrophones, August 2026 Bush Point · North San Juan Channel · Lab, Haro Strait · 1,062 hours usable, 18 days
    Classification

Terms

Reports from this source carry CC-BY-NC-SA-4.0. The licence on a report is computed from every feed that contributed to it, so it is stated per report rather than for the site.

These pages, the code that produced them and this prose are written with AI coding agents under human direction, and reviewed before publication. How these reports are produced.