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Sitka Sound & Outer Baranof

GrayShell – Residency

47th sighting in Sitka Sound & Outer Baranof
Fluke of GrayShell
GrayShell Confirmed in the catalog @26825
May 25 – Sep 24, 2023 · Sitka Sound & Outer Baranof

Sitka Sound & Outer Baranof · May – Sep 2023

98 m
Deepest dive
4:09
Longest dive
249
Dives
Sightings
20
Days between first and last sighting
122

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
May 25, 2023239 m9.3°C98 m
Jun 1, 202378 m8.8°C64 m
Jun 26, 202345 m12.0°C37 m
Jul 25, 2023112 m14.3°C91 m
Jul 27, 202378 m15.1°C48 m
Jul 29, 202378 m15.5°C68 m
Jul 29, 2023104 m15.3°C79 m
Jul 29, 2023124 m15.4°C72 m
Jul 30, 202392 m15.3°C56 m
Aug 11, 202321 m14.7°C13 m
Aug 28, 202342 m14.7°C23 m
Aug 31, 2023106 m14.4°C54 m
Sep 3, 2023128 m13.7°C59 m
Sep 4, 202378 m13.6°C70 m
Sep 5, 202370 m13.7°C50 m
Sep 10, 202378 m13.8°C63 m
Sep 10, 2023120 m13.8°C70 m
Sep 11, 202378 m13.4°C18 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 25, 2023 — seafloor 239 m (measured), deepest dive 98 m (modelled)May 25Jun 1, 2023 — seafloor 78 m (measured), deepest dive 64 m (modelled)Jun 26, 2023 — seafloor 45 m (measured), deepest dive 37 m (modelled)Jul 25, 2023 — seafloor 112 m (measured), deepest dive 91 m (modelled)Jul 27, 2023 — seafloor 78 m (measured), deepest dive 48 m (modelled)Jul 27Jul 29, 2023 — seafloor 78 m (measured), deepest dive 68 m (modelled)Jul 29, 2023 — seafloor 104 m (measured), deepest dive 79 m (modelled)Jul 29, 2023 — seafloor 124 m (measured), deepest dive 72 m (modelled)Jul 30, 2023 — seafloor 92 m (measured), deepest dive 56 m (modelled)Jul 30Aug 11, 2023 — seafloor 21 m (measured), deepest dive 13 m (modelled)Aug 28, 2023 — seafloor 42 m (measured), deepest dive 23 m (modelled)Aug 31, 2023 — seafloor 106 m (measured), deepest dive 54 m (modelled)Sep 3, 2023 — seafloor 128 m (measured), deepest dive 59 m (modelled)Sep 3Sep 4, 2023 — seafloor 78 m (measured), deepest dive 70 m (modelled)Sep 5, 2023 — seafloor 70 m (measured), deepest dive 50 m (modelled)Sep 10, 2023 — seafloor 78 m (measured), deepest dive 63 m (modelled)Sep 10, 2023 — seafloor 120 m (measured), deepest dive 70 m (modelled)Sep 10Sep 11, 2023 — seafloor 78 m (measured), deepest dive 18 m (modelled)Sep 19, 2023 — seafloor 116 m (measured), deepest dive 79 m (modelled)Sep 24, 2023 — seafloor 78 m (measured), deepest dive 35 m (modelled)

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

Dives

98 m
Deepest dive
4:09
Longest dive
249
Dives
24 m
Avg dive depth
20
Sightings
122
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010098 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (239 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 · May 25, 2023

measured
Seafloor depth
239 m
Sea-surface temperature
9.3°C
Distance from shore
10.0 km

Across the residency · 20 sightings

measured
Seafloor depth
21 m – 239 m
Sea-surface temperature
8.8°C – 15.5°C
Distance from shore
1.0 km – 10.0 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 20 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.