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

NepuPalaoa – Residency

14th sighting in Chatham Strait
Fluke of NepuPalaoa
NepuPalaoa Confirmed in the catalog @6459
Jun 19 – Sep 10, 2026 · Chatham Strait

Deep Water, Full Season

Chatham Strait fed me well this whole stretch of sun.

138 m
Deepest dive
4:59
Longest dive
75
Dives
Sightings
7
Days between first and last sighting
83

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jun 19, 2026378 m9.7°C108 m
Jun 20, 2026295 m11.2°C138 m
Jun 25, 2026371 m11.8°C20 m
Jul 7, 2026409 m12.2°C41 m
Jul 9, 2026117 m12.5°C63 m
Aug 6, 2026582 m13.7°C85 m
Sep 10, 2026100 m13.1°C26 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 19, 2026 — seafloor 378 m (measured), deepest dive 108 m (modelled)Jun 19Jun 20, 2026 — seafloor 295 m (measured), deepest dive 138 m (modelled)Jun 20Jun 25, 2026 — seafloor 371 m (measured), deepest dive 20 m (modelled)Jun 25Jul 7, 2026 — seafloor 409 m (measured), deepest dive 41 m (modelled)Jul 7Jul 9, 2026 — seafloor 117 m (measured), deepest dive 63 m (modelled)Jul 9Aug 6, 2026 — seafloor 582 m (measured), deepest dive 85 m (modelled)Aug 6Sep 10, 2026 — seafloor 100 m (measured), deepest dive 26 m (modelled)Sep 10

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

Dives

138 m
Deepest dive
4:59
Longest dive
75
Dives
24 m
Avg dive depth
7
Sightings
83
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
075150138 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (295 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 · Jun 20, 2026

measured
Seafloor depth
295 m
Sea-surface temperature
11.2°C
Distance from shore
4.0 km

Across the residency · 7 sightings

measured
Seafloor depth
100 m – 582 m
Sea-surface temperature
9.7°C – 13.7°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 7 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.