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Sitka Sound & Outer Baranof

HW-MN0401535 – Residency

18th sighting in Sitka Sound & Outer Baranof
Fluke of HW-MN0401535
HW-MN0401535 Confirmed in the catalog @130911
Jul 19 – Sep 14, 2026 · Sitka Sound & Outer Baranof

Same Green Channel, Again

Herring came back, so did I — nothing hurried.

75 m
Deepest dive
3:35
Longest dive
98
Dives
Sightings
9
Days between first and last sighting
57

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jul 19, 2026130 m12.8°C71 m
Jul 21, 202678 m12.8°C31 m
Aug 2, 2026119 m13.4°C39 m
Aug 6, 202678 m13.9°C19 m
Aug 6, 202678 m13.9°C58 m
Aug 7, 202674 m14.0°C52 m
Sep 6, 2026138 m13.9°C49 m
Sep 11, 2026138 m13.6°C75 m
Sep 14, 202677 m13.4°C39 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
Jul 19, 2026 — seafloor 130 m (measured), deepest dive 71 m (modelled)Jul 19Jul 21, 2026 — seafloor 78 m (measured), deepest dive 31 m (modelled)Jul 21Aug 2, 2026 — seafloor 119 m (measured), deepest dive 39 m (modelled)Aug 2Aug 6, 2026 — seafloor 78 m (measured), deepest dive 19 m (modelled)Aug 6Aug 6, 2026 — seafloor 78 m (measured), deepest dive 58 m (modelled)Aug 6Aug 7, 2026 — seafloor 74 m (measured), deepest dive 52 m (modelled)Aug 7Sep 6, 2026 — seafloor 138 m (measured), deepest dive 49 m (modelled)Sep 6Sep 11, 2026 — seafloor 138 m (measured), deepest dive 75 m (modelled)Sep 11Sep 14, 2026 — seafloor 77 m (measured), deepest dive 39 m (modelled)Sep 14

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

Dives

75 m
Deepest dive
3:35
Longest dive
98
Dives
22 m
Avg dive depth
9
Sightings
57
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010075 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (138 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 11, 2026

measured
Seafloor depth
138 m
Sea-surface temperature
13.6°C
Distance from shore
5.0 km

Across the residency · 9 sightings

measured
Seafloor depth
74 m – 138 m
Sea-surface temperature
12.8°C – 14.0°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 9 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.