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Sitka Sound & Outer Baranof

Defenestration – Residency

21st sighting in Sitka Sound & Outer Baranof
Fluke of Defenestration
Defenestration Confirmed in the catalog @16924
Mar 21 – Aug 21, 2023 · Sitka Sound & Outer Baranof

Sitka Sound & Outer Baranof · Mar – Aug 2023

149 m
Deepest dive
5:15
Longest dive
280
Dives
Sightings
24
Days between first and last sighting
153

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Mar 21, 202372 m4.5°C38 m
Mar 22, 202357 m4.6°C28 m
Mar 28, 202326 m4.5°C21 m
Mar 29, 202346 m4.5°C34 m
Mar 30, 202345 m4.4°C35 m
Apr 1, 202327 m4.9°C25 m
Apr 1, 202325 m4.9°C20 m
Apr 1, 202332 m4.9°C19 m
Apr 3, 202335 m4.9°C32 m
Apr 4, 202332 m4.9°C24 m
Apr 6, 202332 m5.5°C15 m
Jun 21, 202394 m9.8°C54 m
Jun 28, 202367 m11.6°C41 m
Jul 1, 2023114 m12.0°C98 m
Jul 2, 202369 m11.9°C59 m
Jul 2, 202382 m11.9°C49 m
Jul 2, 2023103 m11.9°C90 m
Jul 3, 202366 m12.0°C56 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
Mar 21, 2023 — seafloor 72 m (measured), deepest dive 38 m (modelled)Mar 21Mar 22, 2023 — seafloor 57 m (measured), deepest dive 28 m (modelled)Mar 28, 2023 — seafloor 26 m (measured), deepest dive 21 m (modelled)Mar 29, 2023 — seafloor 46 m (measured), deepest dive 34 m (modelled)Mar 30, 2023 — seafloor 45 m (measured), deepest dive 35 m (modelled)Mar 30Apr 1, 2023 — seafloor 27 m (measured), deepest dive 25 m (modelled)Apr 1, 2023 — seafloor 25 m (measured), deepest dive 20 m (modelled)Apr 1, 2023 — seafloor 32 m (measured), deepest dive 19 m (modelled)Apr 3, 2023 — seafloor 35 m (measured), deepest dive 32 m (modelled)Apr 3Apr 4, 2023 — seafloor 32 m (measured), deepest dive 24 m (modelled)Apr 6, 2023 — seafloor 32 m (measured), deepest dive 15 m (modelled)Jun 21, 2023 — seafloor 94 m (measured), deepest dive 54 m (modelled)Jun 28, 2023 — seafloor 67 m (measured), deepest dive 41 m (modelled)Jun 28Jul 1, 2023 — seafloor 114 m (measured), deepest dive 98 m (modelled)Jul 2, 2023 — seafloor 69 m (measured), deepest dive 59 m (modelled)Jul 2, 2023 — seafloor 82 m (measured), deepest dive 49 m (modelled)Jul 2, 2023 — seafloor 103 m (measured), deepest dive 90 m (modelled)Jul 2Jul 3, 2023 — seafloor 66 m (measured), deepest dive 56 m (modelled)Jul 17, 2023 — seafloor 325 m (measured), deepest dive 67 m (modelled)Jul 26, 2023 — seafloor 52 m (measured), deepest dive 43 m (modelled)Jul 27, 2023 — seafloor 556 m (measured), deepest dive 149 m (modelled)Jul 27Aug 18, 2023 — seafloor 35 m (measured), deepest dive 30 m (modelled)Aug 20, 2023 — seafloor 65 m (measured), deepest dive 25 m (modelled)Aug 21, 2023 — seafloor 26 m (measured), deepest dive 24 m (modelled)

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

Dives

149 m
Deepest dive
5:15
Longest dive
280
Dives
20 m
Avg dive depth
24
Sightings
153
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
075150149 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (556 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 · Jul 27, 2023

measured
Seafloor depth
556 m
Sea-surface temperature
13.1°C
Distance from shore
6.0 km

Across the residency · 24 sightings

measured
Seafloor depth
25 m – 556 m
Sea-surface temperature
4.4°C – 13.5°C
Distance from shore
1.0 km – 6.0 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 24 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.