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

Chiroxiphia – Residency

20th sighting in Chatham Strait
Fluke of Chiroxiphia
Chiroxiphia Confirmed in the catalog @16861
Jul 13 – Aug 24, 2025 · Chatham Strait

Chatham Strait · Jul – Aug 2025

68 m
Deepest dive
2:28
Longest dive
50
Dives
Sightings
4
Days between first and last sighting
42

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jul 13, 2025235 m12.9°C32 m
Jul 25, 202576 m12.8°C68 m
Aug 4, 202521 m13.4°C18 m
Aug 24, 202586 m15.1°C31 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 13, 2025 — seafloor 235 m (measured), deepest dive 32 m (modelled)Jul 13Jul 25, 2025 — seafloor 76 m (measured), deepest dive 68 m (modelled)Jul 25Aug 4, 2025 — seafloor 21 m (measured), deepest dive 18 m (modelled)Aug 4Aug 24, 2025 — seafloor 86 m (measured), deepest dive 31 m (modelled)Aug 24

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

Dives

68 m
Deepest dive
2:28
Longest dive
50
Dives
15 m
Avg dive depth
4
Sightings
42
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010068 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (76 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 25, 2025

measured
Seafloor depth
76 m
Sea-surface temperature
12.8°C
Distance from shore
2.0 km

Across the residency · 4 sightings

measured
Seafloor depth
21 m – 235 m
Sea-surface temperature
12.8°C – 15.1°C
Distance from shore
2.0 km – 7.0 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 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.