Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
Gulf of California

Chunnu – Residency

11th sighting in Gulf of California
Fluke of Chunnu
Chunnu Confirmed in the catalog @33728
Feb 24 – Mar 3, 2026 · Gulf of California

Gulf of California · Feb – Mar 2026

114 m
Deepest dive
4:36
Longest dive
34
Dives
Sightings
5
Days between first and last sighting
7

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Feb 24, 20261,072 m23.3°C75 m
Feb 24, 2026927 m23.4°C106 m
Mar 3, 2026-8 m23.1°C—
Mar 3, 2026327 m22.4°C114 m
Mar 3, 202633 m22.8°C24 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
Feb 24, 2026 — seafloor 1,072 m (measured), deepest dive 75 m (modelled)Feb 24Feb 24, 2026 — seafloor 927 m (measured), deepest dive 106 m (modelled)Feb 24Mar 3, 2026 — seafloor -8 m (measured), deepest dive — (modelled)Mar 3Mar 3, 2026 — seafloor 327 m (measured), deepest dive 114 m (modelled)Mar 3Mar 3, 2026 — seafloor 33 m (measured), deepest dive 24 m (modelled)Mar 3

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

Dives

114 m
Deepest dive
4:36
Longest dive
34
Dives
34 m
Avg dive depth
5
Sightings
7
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
075150114 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (327 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 · Mar 3, 2026

measured
Seafloor depth
327 m
Sea-surface temperature
22.4°C
Distance from shore
4.0 km

Across the residency · 5 sightings

measured
Seafloor depth
-8 m – 1,072 m
Sea-surface temperature
22.4°C – 23.4°C
Distance from shore
2.0 km – 10.0 km

Sources: GEBCO seafloor grid · NOAA OISST sea temperature · PacIOOS coastline distance

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

Source records

This activity is assembled from 5 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.