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Lynn Canal & Stephens Passage

Tucker – Residency

116th sighting in Lynn Canal & Stephens Passage
Fluke of Tucker
Tucker Confirmed in the catalog @18249
May 2 – Sep 30, 2025 · Lynn Canal & Stephens Passage

Lynn Canal & Stephens Passage · May – Sep 2025

105 m
Deepest dive
4:49
Longest dive
308
Dives
Sightings
28
Days between first and last sighting
151

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
May 2, 202597 m6.9°C87 m
May 19, 202565 m7.5°C40 m
May 29, 2025112 m8.7°C85 m
May 31, 202544 m8.9°C40 m
Jun 2, 2025137 m8.8°C91 m
Jun 5, 2025116 m9.0°C97 m
Jul 7, 202555 m13.1°C43 m
Jul 9, 2025104 m12.6°C24 m
Jul 23, 202544 m14.1°C33 m
Jul 24, 2025112 m14.4°C57 m
Jul 27, 202576 m14.7°C46 m
Jul 30, 2025118 m14.9°C105 m
Aug 4, 2025143 m14.0°C51 m
Aug 6, 202566 m13.6°C19 m
Aug 18, 202589 m14.1°C69 m
Aug 20, 2025126 m14.3°C82 m
Aug 21, 2025102 m14.2°C31 m
Aug 30, 202579 m15.1°C64 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 2, 2025 — seafloor 97 m (measured), deepest dive 87 m (modelled)May 2May 19, 2025 — seafloor 65 m (measured), deepest dive 40 m (modelled)May 29, 2025 — seafloor 112 m (measured), deepest dive 85 m (modelled)May 31, 2025 — seafloor 44 m (measured), deepest dive 40 m (modelled)Jun 2, 2025 — seafloor 137 m (measured), deepest dive 91 m (modelled)Jun 5, 2025 — seafloor 116 m (measured), deepest dive 97 m (modelled)Jun 5Jul 7, 2025 — seafloor 55 m (measured), deepest dive 43 m (modelled)Jul 9, 2025 — seafloor 104 m (measured), deepest dive 24 m (modelled)Jul 23, 2025 — seafloor 44 m (measured), deepest dive 33 m (modelled)Jul 24, 2025 — seafloor 112 m (measured), deepest dive 57 m (modelled)Jul 27, 2025 — seafloor 76 m (measured), deepest dive 46 m (modelled)Jul 27Jul 30, 2025 — seafloor 118 m (measured), deepest dive 105 m (modelled)Aug 4, 2025 — seafloor 143 m (measured), deepest dive 51 m (modelled)Aug 6, 2025 — seafloor 66 m (measured), deepest dive 19 m (modelled)Aug 18, 2025 — seafloor 89 m (measured), deepest dive 69 m (modelled)Aug 20, 2025 — seafloor 126 m (measured), deepest dive 82 m (modelled)Aug 20Aug 21, 2025 — seafloor 102 m (measured), deepest dive 31 m (modelled)Aug 30, 2025 — seafloor 79 m (measured), deepest dive 64 m (modelled)Sep 1, 2025 — seafloor 84 m (measured), deepest dive 49 m (modelled)Sep 1, 2025 — seafloor 133 m (measured), deepest dive 50 m (modelled)Sep 8, 2025 — seafloor 62 m (measured), deepest dive 24 m (modelled)Sep 8Sep 9, 2025 — seafloor 69 m (measured), deepest dive 39 m (modelled)Sep 11, 2025 — seafloor 116 m (measured), deepest dive 100 m (modelled)Sep 12, 2025 — seafloor 92 m (measured), deepest dive 79 m (modelled)Sep 13, 2025 — seafloor 80 m (measured), deepest dive 58 m (modelled)Sep 14, 2025 — seafloor 62 m (measured), deepest dive 26 m (modelled)Sep 14Sep 18, 2025 — seafloor 85 m (measured), deepest dive 70 m (modelled)Sep 30, 2025 — seafloor 89 m (measured), deepest dive 61 m (modelled)

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

Dives

105 m
Deepest dive
4:49
Longest dive
308
Dives
24 m
Avg dive depth
28
Sightings
151
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
075150105 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (118 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 · Jul 30, 2025

measured
Seafloor depth
118 m
Sea-surface temperature
14.9°C
Distance from shore
1.0 km

Across the residency · 28 sightings

measured
Seafloor depth
44 m – 143 m
Sea-surface temperature
6.9°C – 15.1°C
Distance from shore
1.0 km – 2.0 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 28 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.