Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
Salish Sea

Sirius – Residency

19th sighting in Salish Sea
Fluke of Sirius
Sirius Confirmed in the catalog @4185
Jun 19 – Oct 12, 2026 · Salish Sea

Home Water, Herring Thick

Nine summers in, and these channels still hum right through my skin.

107 m
Deepest dive
3:59
Longest dive
77
Dives
Sightings
6
Days between first and last sighting
115

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jun 19, 2026178 m15.4°C79 m
Jun 26, 2026151 m14.6°C31 m
Jul 2, 2026172 m12.9°C52 m
Jul 3, 2026180 m13.1°C79 m
Sep 27, 2026188 m—107 m
Oct 12, 2026173 m—35 m

Seafloor and sea temperature measured · ✳ dives modelled

Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors

Deepest dive against the seafloor, per sighting

Seafloor · measured Deepest dive · modelled
Jun 19, 2026 — seafloor 178 m (measured), deepest dive 79 m (modelled)Jun 19Jun 26, 2026 — seafloor 151 m (measured), deepest dive 31 m (modelled)Jun 26Jul 2, 2026 — seafloor 172 m (measured), deepest dive 52 m (modelled)Jul 2Jul 3, 2026 — seafloor 180 m (measured), deepest dive 79 m (modelled)Jul 3Sep 27, 2026 — seafloor 188 m (measured), deepest dive 107 m (modelled)Sep 27Oct 12, 2026 — seafloor 173 m (measured), deepest dive 35 m (modelled)Oct 12

Depth runs down from the surface. The modelled dive never passes the measured seafloor at that sighting.

Dives

107 m
Deepest dive
3:59
Longest dive
77
Dives
25 m
Avg dive depth
6
Sightings
115
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
075150107 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (188 m) and the published dive-behaviour distribution. Modelled, not measured.

Deep Effort Score

Deep

Depth, duration and recovery resolved into a single number for this session.

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Place

Where this happened · Sep 27, 2026

measured
Seafloor depth
188 m
Sea-surface temperature
—
Distance from shore
10.0 km

Across the residency · 6 sightings

measured
Seafloor depth
151 m – 188 m
Sea-surface temperature
12.9°C – 15.4°C
Distance from shore
4.0 km – 10.0 km

Sources: GEBCO seafloor grid · PacIOOS coastline distance

Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors

Source records

This activity is assembled from 6 catalogued encounters on Happywhale.

Sighting records from Happywhale, published as occurrence data via GBIF. Individual records are licensed CC0 1.0, CC BY 4.0 or CC BY-NC 4.0, depending on the contributor.

The photographs and fluke identifications behind every sighting are the work of the contributing observers — the citizen scientists, naturalists and operators who logged them, each named in the underlying GBIF occurrence record. Every activity links out to its source encounters on Happywhale. Basemaps © OpenStreetMap contributors (ODbL).

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Breach is an independent project. It is not affiliated with, nor endorsed by, Happywhale or GBIF.