Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
Chatham Strait

Old Timer – Residency

18th sighting in Chatham Strait
Fluke of Old Timer
Old Timer Confirmed in the catalog @14432
Jul 29 – Aug 21, 2024 · Chatham Strait

Chatham Strait · Jul – Aug 2024

109 m
Deepest dive
3:57
Longest dive
28
Dives
Sightings
4
Days between first and last sighting
23

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jul 29, 2024140 m—109 m
Aug 5, 202470 m—12 m
Aug 9, 2024119 m—48 m
Aug 21, 2024198 m—95 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 29, 2024 — seafloor 140 m (measured), deepest dive 109 m (modelled)Jul 29Aug 5, 2024 — seafloor 70 m (measured), deepest dive 12 m (modelled)Aug 5Aug 9, 2024 — seafloor 119 m (measured), deepest dive 48 m (modelled)Aug 9Aug 21, 2024 — seafloor 198 m (measured), deepest dive 95 m (modelled)Aug 21

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

Dives

109 m
Deepest dive
3:57
Longest dive
28
Dives
28 m
Avg dive depth
4
Sightings
23
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
075150109 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (140 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 29, 2024

measured
Seafloor depth
140 m
Sea-surface temperature
—
Distance from shore
4.0 km

Across the residency · 4 sightings

measured
Seafloor depth
70 m – 198 m
Sea-surface temperature
—
Distance from shore
4.0 km – 6.0 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 4 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.