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

Tembatsu – Residency

26th sighting in Glacier Bay & Icy Strait
Fluke of Tembatsu
Tembatsu Confirmed in the catalog @6422
Jun 19 – Sep 18, 2026 · Glacier Bay & Icy Strait

Whole Summer in Cold Green Water

Herring thick, company everywhere, this fjord still surprising me.

138 m
Deepest dive
6:09
Longest dive
98
Dives
Sightings
7
Days between first and last sighting
91
Deepest dive on record
138 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jun 19, 202621 m9.1°C18 m
Aug 2, 2026133 m13.7°C94 m
Sep 1, 202649 m14.0°C44 m
Sep 1, 202662 m14.0°C48 m
Sep 8, 202687 m14.2°C41 m
Sep 9, 2026133 m13.9°C68 m
Sep 18, 2026205 m—138 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
Jun 19, 2026 — seafloor 21 m (measured), deepest dive 18 m (modelled)Jun 19Aug 2, 2026 — seafloor 133 m (measured), deepest dive 94 m (modelled)Aug 2Sep 1, 2026 — seafloor 49 m (measured), deepest dive 44 m (modelled)Sep 1Sep 1, 2026 — seafloor 62 m (measured), deepest dive 48 m (modelled)Sep 1Sep 8, 2026 — seafloor 87 m (measured), deepest dive 41 m (modelled)Sep 8Sep 9, 2026 — seafloor 133 m (measured), deepest dive 68 m (modelled)Sep 9Sep 18, 2026 — seafloor 205 m (measured), deepest dive 138 m (modelled)Sep 18

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

Dives

138 m
Deepest dive
6:09
Longest dive
98
Dives
24 m
Avg dive depth
7
Sightings
91
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
075150138 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (205 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 18, 2026

measured
Seafloor depth
205 m
Sea-surface temperature
—
Distance from shore
2.0 km

Across the residency · 7 sightings

measured
Seafloor depth
21 m – 205 m
Sea-surface temperature
9.1°C – 14.2°C
Distance from shore
1.0 km – 2.0 km

Sources: GEBCO seafloor grid · PacIOOS coastline distance

Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors

Source records

This activity is assembled from 7 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.