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Salish Sea

Deca – Residency

29th sighting in Salish Sea
Fluke of Deca
Deca Confirmed in the catalog @53274
May 27 – Aug 16, 2026 · Salish Sea

Calf Learning the Passes

Watched my little one taste the same green cold I grew up on.

155 m
Deepest dive
5:23
Longest dive
152
Dives
Sightings
11
Days between first and last sighting
80

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
May 27, 202660 m15.3°C45 m
Jun 1, 202638 m11.0°C33 m
Jun 15, 2026157 m15.8°C140 m
Jun 27, 2026147 m13.9°C28 m
Jul 9, 202625 m16.0°C19 m
Jul 13, 2026128 m14.6°C71 m
Jul 22, 2026111 m19.5°C30 m
Jul 30, 2026202 m14.6°C99 m
Aug 2, 2026238 m14.6°C142 m
Aug 4, 2026226 m15.2°C155 m
Aug 16, 202631 m15.7°C22 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
May 27, 2026 — seafloor 60 m (measured), deepest dive 45 m (modelled)May 27Jun 1, 2026 — seafloor 38 m (measured), deepest dive 33 m (modelled)Jun 1Jun 15, 2026 — seafloor 157 m (measured), deepest dive 140 m (modelled)Jun 15Jun 27, 2026 — seafloor 147 m (measured), deepest dive 28 m (modelled)Jun 27Jul 9, 2026 — seafloor 25 m (measured), deepest dive 19 m (modelled)Jul 9Jul 13, 2026 — seafloor 128 m (measured), deepest dive 71 m (modelled)Jul 13Jul 22, 2026 — seafloor 111 m (measured), deepest dive 30 m (modelled)Jul 22Jul 30, 2026 — seafloor 202 m (measured), deepest dive 99 m (modelled)Jul 30Aug 2, 2026 — seafloor 238 m (measured), deepest dive 142 m (modelled)Aug 2Aug 4, 2026 — seafloor 226 m (measured), deepest dive 155 m (modelled)Aug 4Aug 16, 2026 — seafloor 31 m (measured), deepest dive 22 m (modelled)Aug 16

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

Dives

155 m
Deepest dive
5:23
Longest dive
152
Dives
26 m
Avg dive depth
11
Sightings
80
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
0100200155 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (226 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 4, 2026

measured
Seafloor depth
226 m
Sea-surface temperature
15.2°C
Distance from shore
5.0 km

Across the residency · 11 sightings

measured
Seafloor depth
25 m – 238 m
Sea-surface temperature
11.0°C – 19.5°C
Distance from shore
1.0 km – 8.0 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 11 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.