Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
Glacier Bay & Icy Strait

SEAK-5578 – Residency

5th sighting in Glacier Bay & Icy Strait
Fluke of SEAK-5578
SEAK-5578 Confirmed in the catalog @57887
May 28 – Sep 8, 2026 · Glacier Bay & Icy Strait

The Narrows Know Me

Herring's running, glacier light's on the water — this bay raised me right.

96 m
Deepest dive
4:22
Longest dive
45
Dives
Sightings
6
Days between first and last sighting
102

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
May 28, 2026211 m8.3°C89 m
Jun 18, 2026124 m10.0°C53 m
Jul 19, 202692 m13.0°C35 m
Aug 31, 202698 m14.2°C14 m
Sep 1, 2026155 m14.0°C96 m
Sep 8, 2026373 m14.2°C70 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 28, 2026 — seafloor 211 m (measured), deepest dive 89 m (modelled)May 28Jun 18, 2026 — seafloor 124 m (measured), deepest dive 53 m (modelled)Jun 18Jul 19, 2026 — seafloor 92 m (measured), deepest dive 35 m (modelled)Jul 19Aug 31, 2026 — seafloor 98 m (measured), deepest dive 14 m (modelled)Aug 31Sep 1, 2026 — seafloor 155 m (measured), deepest dive 96 m (modelled)Sep 1Sep 8, 2026 — seafloor 373 m (measured), deepest dive 70 m (modelled)Sep 8

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

Dives

96 m
Deepest dive
4:22
Longest dive
45
Dives
25 m
Avg dive depth
6
Sightings
102
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
05010096 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (155 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 · Sep 1, 2026

measured
Seafloor depth
155 m
Sea-surface temperature
14.0°C
Distance from shore
2.0 km

Across the residency · 6 sightings

measured
Seafloor depth
92 m – 373 m
Sea-surface temperature
8.3°C – 14.2°C
Distance from shore
1.0 km – 5.0 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 6 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.