Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
North Pacific

Chief – Residency

Fluke of Chief
Chief Confirmed in the catalog @3365
Oct 17 – Nov 29, 2020 · North Pacific

North Pacific · Oct – Nov 2020

167 m
Deepest dive
5:41
Longest dive
48
Dives
Sightings
6
Days between first and last sighting
43

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Oct 17, 2020481 m21.2°C81 m
Oct 20, 2020459 m21.8°C167 m
Oct 21, 202079 m21.9°C45 m
Oct 24, 2020478 m19.9°C153 m
Oct 30, 2020800 m19.5°C27 m
Nov 29, 2020817 m16.5°C46 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
Oct 17, 2020 — seafloor 481 m (measured), deepest dive 81 m (modelled)Oct 17Oct 20, 2020 — seafloor 459 m (measured), deepest dive 167 m (modelled)Oct 20Oct 21, 2020 — seafloor 79 m (measured), deepest dive 45 m (modelled)Oct 21Oct 24, 2020 — seafloor 478 m (measured), deepest dive 153 m (modelled)Oct 24Oct 30, 2020 — seafloor 800 m (measured), deepest dive 27 m (modelled)Oct 30Nov 29, 2020 — seafloor 817 m (measured), deepest dive 46 m (modelled)Nov 29

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

Dives

167 m
Deepest dive
5:41
Longest dive
48
Dives
30 m
Avg dive depth
6
Sightings
43
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
0100200167 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (459 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 · Oct 20, 2020

measured
Seafloor depth
459 m
Sea-surface temperature
21.8°C
Distance from shore
6.0 km

Across the residency · 6 sightings

measured
Seafloor depth
79 m – 817 m
Sea-surface temperature
16.5°C – 21.9°C
Distance from shore
2.0 km – 14.0 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 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.