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

Triton – Residency

20th sighting in Clarence Strait
Fluke of Triton
Triton Confirmed in the catalog @84846
Jun 15 – Aug 12, 2026 · Clarence Strait

Chatham Strait, Every Summer

Mid-summer green water, my crowd of familiar fins, tail known on sight.

43 m
Deepest dive
1:50
Longest dive
42
Dives
Sightings
5
Days between first and last sighting
58

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jun 15, 202640 m10.4°C31 m
Jun 16, 202685 m10.3°C43 m
Jul 27, 202635 m13.2°C30 m
Aug 3, 202642 m12.7°C37 m
Aug 12, 202646 m13.7°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
Jun 15, 2026 — seafloor 40 m (measured), deepest dive 31 m (modelled)Jun 15Jun 16, 2026 — seafloor 85 m (measured), deepest dive 43 m (modelled)Jun 16Jul 27, 2026 — seafloor 35 m (measured), deepest dive 30 m (modelled)Jul 27Aug 3, 2026 — seafloor 42 m (measured), deepest dive 37 m (modelled)Aug 3Aug 12, 2026 — seafloor 46 m (measured), deepest dive 31 m (modelled)Aug 12

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

Dives

43 m
Deepest dive
1:50
Longest dive
42
Dives
17 m
Avg dive depth
5
Sightings
58
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
0255043 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (85 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 16, 2026

measured
Seafloor depth
85 m
Sea-surface temperature
10.3°C
Distance from shore
1.0 km

Across the residency · 5 sightings

measured
Seafloor depth
35 m – 85 m
Sea-surface temperature
10.3°C – 13.7°C
Distance from shore
1.0 km – 2.0 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 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.