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

Robust – Residency

9th sighting in Chatham Strait
Fluke of Robust
Robust Confirmed in the catalog @40887
Jun 8 – Aug 19, 2023 · Chatham Strait

Chatham Strait · Jun – Aug 2023

49 m
Deepest dive
2:13
Longest dive
52
Dives
Sightings
6
Days between first and last sighting
72

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jun 8, 202366 m—40 m
Jun 9, 202342 m—34 m
Jun 21, 202357 m—49 m
Jun 26, 202310 m—7 m
Jun 28, 202337 m—24 m
Aug 19, 202380 m—49 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
Jun 8, 2023 — seafloor 66 m (measured), deepest dive 40 m (modelled)Jun 8Jun 9, 2023 — seafloor 42 m (measured), deepest dive 34 m (modelled)Jun 9Jun 21, 2023 — seafloor 57 m (measured), deepest dive 49 m (modelled)Jun 21Jun 26, 2023 — seafloor 10 m (measured), deepest dive 7 m (modelled)Jun 26Jun 28, 2023 — seafloor 37 m (measured), deepest dive 24 m (modelled)Jun 28Aug 19, 2023 — seafloor 80 m (measured), deepest dive 49 m (modelled)Aug 19

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

Dives

49 m
Deepest dive
2:13
Longest dive
52
Dives
16 m
Avg dive depth
6
Sightings
72
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
0255049 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (57 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 19, 2023

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

Across the residency · 6 sightings

measured
Seafloor depth
10 m – 80 m
Sea-surface temperature
—
Distance from shore
1.0 km – 5.0 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.