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

Bill – Residency

9th sighting in Sitka Sound & Outer Baranof
Fluke of Bill
Bill Confirmed in the catalog @38846
Aug 13 – Oct 11, 2025 · Sitka Sound & Outer Baranof

Sitka Sound & Outer Baranof · Aug – Oct 2025

105 m
Deepest dive
4:58
Longest dive
55
Dives
Sightings
6
Days between first and last sighting
59

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Aug 13, 2025130 m—105 m
Aug 14, 2025141 m—93 m
Aug 16, 202578 m—54 m
Aug 18, 202597 m—89 m
Aug 19, 2025120 m—60 m
Oct 11, 2025147 m—25 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 13, 2025 — seafloor 130 m (measured), deepest dive 105 m (modelled)Aug 13Aug 14, 2025 — seafloor 141 m (measured), deepest dive 93 m (modelled)Aug 14Aug 16, 2025 — seafloor 78 m (measured), deepest dive 54 m (modelled)Aug 16Aug 18, 2025 — seafloor 97 m (measured), deepest dive 89 m (modelled)Aug 18Aug 19, 2025 — seafloor 120 m (measured), deepest dive 60 m (modelled)Aug 19Oct 11, 2025 — seafloor 147 m (measured), deepest dive 25 m (modelled)Oct 11

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

Dives

105 m
Deepest dive
4:58
Longest dive
55
Dives
31 m
Avg dive depth
6
Sightings
59
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
075150105 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (130 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 13, 2025

measured
Seafloor depth
130 m
Sea-surface temperature
—
Distance from shore
6.0 km

Across the residency · 6 sightings

measured
Seafloor depth
78 m – 147 m
Sea-surface temperature
—
Distance from shore
6.0 km – 7.0 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 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.