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Salish Sea

Zillion – Residency

94th sighting in Salish Sea
Fluke of Zillion
Zillion Confirmed in the catalog @34648
Jul 26 – Oct 10, 2025 · Salish Sea

Salish Sea · Jul – Oct 2025

140 m
Deepest dive
5:18
Longest dive
434
Dives
Sightings
31
Days between first and last sighting
76
Deepest dive on record
140 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jul 26, 202598 m15.1°C71 m
Jul 27, 2025164 m14.9°C25 m
Jul 30, 2025174 m16.7°C71 m
Aug 16, 2025184 m14.5°C140 m
Aug 19, 2025163 m14.8°C67 m
Aug 28, 2025125 m16.6°C50 m
Sep 1, 202572 m16.0°C65 m
Sep 8, 202545 m16.3°C37 m
Sep 17, 202586 m13.4°C16 m
Sep 18, 202577 m14.0°C21 m
Sep 18, 202550 m14.0°C40 m
Sep 19, 202589 m13.8°C55 m
Sep 22, 20257 m12.4°C6 m
Sep 23, 202554 m12.2°C37 m
Sep 24, 2025107 m12.2°C78 m
Sep 26, 202581 m13.8°C49 m
Sep 26, 2025148 m13.8°C106 m
Sep 27, 202586 m13.9°C55 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 26, 2025 — seafloor 98 m (measured), deepest dive 71 m (modelled)Jul 26Jul 27, 2025 — seafloor 164 m (measured), deepest dive 25 m (modelled)Jul 30, 2025 — seafloor 174 m (measured), deepest dive 71 m (modelled)Aug 16, 2025 — seafloor 184 m (measured), deepest dive 140 m (modelled)Aug 19, 2025 — seafloor 163 m (measured), deepest dive 67 m (modelled)Aug 28, 2025 — seafloor 125 m (measured), deepest dive 50 m (modelled)Sep 1, 2025 — seafloor 72 m (measured), deepest dive 65 m (modelled)Sep 1Sep 8, 2025 — seafloor 45 m (measured), deepest dive 37 m (modelled)Sep 17, 2025 — seafloor 86 m (measured), deepest dive 16 m (modelled)Sep 18, 2025 — seafloor 77 m (measured), deepest dive 21 m (modelled)Sep 18, 2025 — seafloor 50 m (measured), deepest dive 40 m (modelled)Sep 19, 2025 — seafloor 89 m (measured), deepest dive 55 m (modelled)Sep 22, 2025 — seafloor 7 m (measured), deepest dive 6 m (modelled)Sep 22Sep 23, 2025 — seafloor 54 m (measured), deepest dive 37 m (modelled)Sep 24, 2025 — seafloor 107 m (measured), deepest dive 78 m (modelled)Sep 26, 2025 — seafloor 81 m (measured), deepest dive 49 m (modelled)Sep 26, 2025 — seafloor 148 m (measured), deepest dive 106 m (modelled)Sep 27, 2025 — seafloor 86 m (measured), deepest dive 55 m (modelled)Sep 27, 2025 — seafloor 143 m (measured), deepest dive 124 m (modelled)Sep 27Sep 28, 2025 — seafloor 34 m (measured), deepest dive 31 m (modelled)Sep 29, 2025 — seafloor 11 m (measured), deepest dive 10 m (modelled)Oct 2, 2025 — seafloor 165 m (measured), deepest dive 17 m (modelled)Oct 2, 2025 — seafloor 38 m (measured), deepest dive 23 m (modelled)Oct 3, 2025 — seafloor 8 m (measured), deepest dive 7 m (modelled)Oct 4, 2025 — seafloor 104 m (measured), deepest dive 75 m (modelled)Oct 4Oct 4, 2025 — seafloor 93 m (measured), deepest dive 68 m (modelled)Oct 6, 2025 — seafloor 101 m (measured), deepest dive 71 m (modelled)Oct 7, 2025 — seafloor 57 m (measured), deepest dive 48 m (modelled)Oct 8, 2025 — seafloor 234 m (measured), deepest dive 99 m (modelled)Oct 9, 2025 — seafloor 86 m (measured), deepest dive 78 m (modelled)Oct 10, 2025 — seafloor 93 m (measured), deepest dive 61 m (modelled)Oct 10

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

Dives

140 m
Deepest dive
5:18
Longest dive
434
Dives
22 m
Avg dive depth
31
Sightings
76
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
075150140 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (184 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 16, 2025

measured
Seafloor depth
184 m
Sea-surface temperature
14.5°C
Distance from shore
11.0 km

Across the residency · 31 sightings

measured
Seafloor depth
7 m – 234 m
Sea-surface temperature
11.5°C – 16.7°C
Distance from shore
1.0 km – 11.0 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 31 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.