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Sitka Sound & Outer Baranof

Star – Residency

37th sighting in Sitka Sound & Outer Baranof
Fluke of Star
Star Confirmed in the catalog @26657
May 11 – Aug 20, 2026 · Sitka Sound & Outer Baranof

Chatham Strait, All Season

This channel feeds me right, so I stayed the whole stretch.

131 m
Deepest dive
5:46
Longest dive
220
Dives
Sightings
18
Days between first and last sighting
101
Deepest dive on record
131 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
May 11, 202684 m8.0°C51 m
May 12, 202655 m8.2°C43 m
Jun 2, 202637 m10.3°C28 m
Jun 8, 202669 m9.8°C45 m
Jun 15, 202692 m10.0°C58 m
Jun 30, 2026100 m11.9°C89 m
Jul 3, 202678 m11.8°C58 m
Jul 12, 2026140 m12.6°C81 m
Jul 13, 2026104 m12.8°C66 m
Jul 15, 202627 m13.1°C25 m
Jul 26, 2026107 m12.9°C69 m
Jul 30, 2026101 m13.3°C69 m
Jul 31, 202697 m13.0°C37 m
Aug 2, 2026135 m13.4°C87 m
Aug 3, 2026113 m13.4°C70 m
Aug 3, 202678 m13.4°C70 m
Aug 8, 202687 m14.0°C36 m
Aug 20, 2026143 m14.6°C131 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 11, 2026 — seafloor 84 m (measured), deepest dive 51 m (modelled)May 11May 12, 2026 — seafloor 55 m (measured), deepest dive 43 m (modelled)Jun 2, 2026 — seafloor 37 m (measured), deepest dive 28 m (modelled)Jun 8, 2026 — seafloor 69 m (measured), deepest dive 45 m (modelled)Jun 8Jun 15, 2026 — seafloor 92 m (measured), deepest dive 58 m (modelled)Jun 30, 2026 — seafloor 100 m (measured), deepest dive 89 m (modelled)Jul 3, 2026 — seafloor 78 m (measured), deepest dive 58 m (modelled)Jul 3Jul 12, 2026 — seafloor 140 m (measured), deepest dive 81 m (modelled)Jul 13, 2026 — seafloor 104 m (measured), deepest dive 66 m (modelled)Jul 15, 2026 — seafloor 27 m (measured), deepest dive 25 m (modelled)Jul 15Jul 26, 2026 — seafloor 107 m (measured), deepest dive 69 m (modelled)Jul 30, 2026 — seafloor 101 m (measured), deepest dive 69 m (modelled)Jul 31, 2026 — seafloor 97 m (measured), deepest dive 37 m (modelled)Jul 31Aug 2, 2026 — seafloor 135 m (measured), deepest dive 87 m (modelled)Aug 3, 2026 — seafloor 113 m (measured), deepest dive 70 m (modelled)Aug 3, 2026 — seafloor 78 m (measured), deepest dive 70 m (modelled)Aug 3Aug 8, 2026 — seafloor 87 m (measured), deepest dive 36 m (modelled)Aug 20, 2026 — seafloor 143 m (measured), deepest dive 131 m (modelled)

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

Dives

131 m
Deepest dive
5:46
Longest dive
220
Dives
25 m
Avg dive depth
18
Sightings
101
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
075150131 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (143 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 · Aug 20, 2026

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

Across the residency · 18 sightings

measured
Seafloor depth
27 m – 143 m
Sea-surface temperature
8.0°C – 14.6°C
Distance from shore
1.0 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 18 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.