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Lynn Canal & Stephens Passage

Manta – Residency

27th sighting in Lynn Canal & Stephens Passage
Fluke of Manta
Manta Confirmed in the catalog @16810
May 31 – Sep 13, 2026 · Lynn Canal & Stephens Passage

Cold Water, Old Ground

This green water knows me, and I know every current of it.

260 m
Deepest dive
12:10
Longest dive
494
Dives
Sightings
39
Days between first and last sighting
105

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
May 31, 20263 m8.4°C3 m
Jun 5, 202642 m9.8°C38 m
Jun 16, 2026241 m9.5°C143 m
Jun 17, 2026403 m9.6°C260 m
Jun 22, 2026197 m11.4°C59 m
Jun 24, 2026172 m11.5°C23 m
Jul 3, 2026597 m11.3°C84 m
Jul 22, 2026436 m13.2°C199 m
Jul 26, 2026153 m13.1°C54 m
Jul 27, 2026115 m13.0°C32 m
Jul 28, 2026246 m13.4°C94 m
Jul 29, 202659 m13.2°C52 m
Jul 30, 202673 m13.1°C66 m
Jul 31, 202678 m13.0°C48 m
Aug 1, 202616 m13.3°C13 m
Aug 2, 202666 m13.7°C30 m
Aug 3, 202664 m13.7°C28 m
Aug 4, 2026142 m13.9°C91 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 31, 2026 — seafloor 3 m (measured), deepest dive 3 m (modelled)May 31Jun 5, 2026 — seafloor 42 m (measured), deepest dive 38 m (modelled)Jun 16, 2026 — seafloor 241 m (measured), deepest dive 143 m (modelled)Jun 17, 2026 — seafloor 403 m (measured), deepest dive 260 m (modelled)Jun 22, 2026 — seafloor 197 m (measured), deepest dive 59 m (modelled)Jun 24, 2026 — seafloor 172 m (measured), deepest dive 23 m (modelled)Jul 3, 2026 — seafloor 597 m (measured), deepest dive 84 m (modelled)Jul 22, 2026 — seafloor 436 m (measured), deepest dive 199 m (modelled)Jul 22Jul 26, 2026 — seafloor 153 m (measured), deepest dive 54 m (modelled)Jul 27, 2026 — seafloor 115 m (measured), deepest dive 32 m (modelled)Jul 28, 2026 — seafloor 246 m (measured), deepest dive 94 m (modelled)Jul 29, 2026 — seafloor 59 m (measured), deepest dive 52 m (modelled)Jul 30, 2026 — seafloor 73 m (measured), deepest dive 66 m (modelled)Jul 31, 2026 — seafloor 78 m (measured), deepest dive 48 m (modelled)Aug 1, 2026 — seafloor 16 m (measured), deepest dive 13 m (modelled)Aug 1Aug 2, 2026 — seafloor 66 m (measured), deepest dive 30 m (modelled)Aug 3, 2026 — seafloor 64 m (measured), deepest dive 28 m (modelled)Aug 4, 2026 — seafloor 142 m (measured), deepest dive 91 m (modelled)Aug 5, 2026 — seafloor 84 m (measured), deepest dive 76 m (modelled)Aug 6, 2026 — seafloor 60 m (measured), deepest dive 54 m (modelled)Aug 7, 2026 — seafloor 124 m (measured), deepest dive 48 m (modelled)Aug 8, 2026 — seafloor 80 m (measured), deepest dive 50 m (modelled)Aug 8Aug 9, 2026 — seafloor 76 m (measured), deepest dive 70 m (modelled)Aug 10, 2026 — seafloor 70 m (measured), deepest dive 47 m (modelled)Aug 11, 2026 — seafloor 76 m (measured), deepest dive 49 m (modelled)Aug 12, 2026 — seafloor 91 m (measured), deepest dive 53 m (modelled)Aug 13, 2026 — seafloor 81 m (measured), deepest dive 74 m (modelled)Aug 14, 2026 — seafloor 98 m (measured), deepest dive 81 m (modelled)Aug 15, 2026 — seafloor 83 m (measured), deepest dive 72 m (modelled)Aug 15Aug 16, 2026 — seafloor 104 m (measured), deepest dive 63 m (modelled)Aug 17, 2026 — seafloor 108 m (measured), deepest dive 97 m (modelled)Aug 18, 2026 — seafloor 120 m (measured), deepest dive 33 m (modelled)Aug 19, 2026 — seafloor 91 m (measured), deepest dive 30 m (modelled)Aug 20, 2026 — seafloor 81 m (measured), deepest dive 37 m (modelled)Aug 21, 2026 — seafloor 72 m (measured), deepest dive 65 m (modelled)Aug 31, 2026 — seafloor 74 m (measured), deepest dive 64 m (modelled)Aug 31Sep 1, 2026 — seafloor 96 m (measured), deepest dive 74 m (modelled)Sep 2, 2026 — seafloor 70 m (measured), deepest dive 54 m (modelled)Sep 13, 2026 — seafloor 72 m (measured), deepest dive 65 m (modelled)

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

Dives

260 m
Deepest dive
12:10
Longest dive
494
Dives
25 m
Avg dive depth
39
Sightings
105
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
0150300260 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (403 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 · Jun 17, 2026

measured
Seafloor depth
403 m
Sea-surface temperature
9.6°C
Distance from shore
2.0 km

Across the residency · 39 sightings

measured
Seafloor depth
3 m – 597 m
Sea-surface temperature
8.4°C – 15.7°C
Distance from shore
1.0 km – 6.0 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 39 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.