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

Swiftsure – Residency

11th sighting in Salish Sea
Fluke of Swiftsure
Swiftsure Confirmed in the catalog @22400
Jul 31 – Aug 6, 2025 · Salish Sea

Salish Sea · Jul – Aug 2025

157 m
Deepest dive
5:06
Longest dive
94
Dives
Sightings
7
Days between first and last sighting
6
Deepest dive on record
157 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jul 31, 2025135 m17.7°C29 m
Aug 2, 2025172 m18.0°C157 m
Aug 3, 2025159 m17.7°C131 m
Aug 4, 202555 m17.0°C36 m
Aug 5, 2025163 m15.2°C60 m
Aug 5, 2025174 m15.3°C77 m
Aug 6, 2025163 m14.6°C82 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
Jul 31, 2025 — seafloor 135 m (measured), deepest dive 29 m (modelled)Jul 31Aug 2, 2025 — seafloor 172 m (measured), deepest dive 157 m (modelled)Aug 2Aug 3, 2025 — seafloor 159 m (measured), deepest dive 131 m (modelled)Aug 3Aug 4, 2025 — seafloor 55 m (measured), deepest dive 36 m (modelled)Aug 4Aug 5, 2025 — seafloor 163 m (measured), deepest dive 60 m (modelled)Aug 5Aug 5, 2025 — seafloor 174 m (measured), deepest dive 77 m (modelled)Aug 5Aug 6, 2025 — seafloor 163 m (measured), deepest dive 82 m (modelled)Aug 6

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

Dives

157 m
Deepest dive
5:06
Longest dive
94
Dives
27 m
Avg dive depth
7
Sightings
6
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
0100200157 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (172 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 · Aug 2, 2025

measured
Seafloor depth
172 m
Sea-surface temperature
18.0°C
Distance from shore
4.0 km

Across the residency · 7 sightings

measured
Seafloor depth
55 m – 174 m
Sea-surface temperature
14.6°C – 18.0°C
Distance from shore
4.0 km – 10.0 km

Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · PacIOOS coastline distance

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

Source records

This activity is assembled from 7 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.