Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
Sitka Sound & Outer Baranof

HW-MN0444903 – Residency

6th sighting in Sitka Sound & Outer Baranof
Fluke of HW-MN0444903
HW-MN0444903 Confirmed in the catalog @133463
Aug 4 – Sep 5, 2025 · Sitka Sound & Outer Baranof

Sitka Sound & Outer Baranof · Aug – Sep 2025

97 m
Deepest dive
3:58
Longest dive
75
Dives
Sightings
6
Days between first and last sighting
32
Deepest dive on record
97 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Aug 4, 202539 m14.3°C34 m
Aug 13, 2025133 m15.2°C49 m
Aug 21, 202578 m14.9°C35 m
Sep 1, 2025136 m14.9°C50 m
Sep 2, 2025118 m14.6°C97 m
Sep 5, 2025138 m14.9°C81 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
Aug 4, 2025 — seafloor 39 m (measured), deepest dive 34 m (modelled)Aug 4Aug 13, 2025 — seafloor 133 m (measured), deepest dive 49 m (modelled)Aug 13Aug 21, 2025 — seafloor 78 m (measured), deepest dive 35 m (modelled)Aug 21Sep 1, 2025 — seafloor 136 m (measured), deepest dive 50 m (modelled)Sep 1Sep 2, 2025 — seafloor 118 m (measured), deepest dive 97 m (modelled)Sep 2Sep 5, 2025 — seafloor 138 m (measured), deepest dive 81 m (modelled)Sep 5

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

Dives

97 m
Deepest dive
3:58
Longest dive
75
Dives
26 m
Avg dive depth
6
Sightings
32
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
05010097 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 · Sep 2, 2025

measured
Seafloor depth
118 m
Sea-surface temperature
14.6°C
Distance from shore
6.0 km

Across the residency · 6 sightings

measured
Seafloor depth
39 m – 138 m
Sea-surface temperature
14.3°C – 15.2°C
Distance from shore
2.0 km – 7.0 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.