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

Streetlamp – Residency

46th sighting in Chatham Strait
Fluke of Streetlamp
Streetlamp Confirmed in the catalog @5662
Jun 26 – Aug 16, 2025 · Chatham Strait

Chatham Strait · Jun – Aug 2025

145 m
Deepest dive
5:17
Longest dive
109
Dives
Sightings
6
Days between first and last sighting
51

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jun 26, 202526 m10.9°C19 m
Jul 14, 2025581 m13.2°C145 m
Jul 17, 20254 m12.0°C3 m
Jul 25, 202576 m12.8°C68 m
Aug 1, 202522 m14.1°C19 m
Aug 16, 2025355 m14.5°C105 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 26, 2025 — seafloor 26 m (measured), deepest dive 19 m (modelled)Jun 26Jul 14, 2025 — seafloor 581 m (measured), deepest dive 145 m (modelled)Jul 14Jul 17, 2025 — seafloor 4 m (measured), deepest dive 3 m (modelled)Jul 17Jul 25, 2025 — seafloor 76 m (measured), deepest dive 68 m (modelled)Jul 25Aug 1, 2025 — seafloor 22 m (measured), deepest dive 19 m (modelled)Aug 1Aug 16, 2025 — seafloor 355 m (measured), deepest dive 105 m (modelled)Aug 16

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

Dives

145 m
Deepest dive
5:17
Longest dive
109
Dives
19 m
Avg dive depth
6
Sightings
51
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
075150145 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (581 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 14, 2025

measured
Seafloor depth
581 m
Sea-surface temperature
13.2°C
Distance from shore
3.0 km

Across the residency · 6 sightings

measured
Seafloor depth
4 m – 581 m
Sea-surface temperature
10.9°C – 14.5°C
Distance from shore
2.0 km – 8.0 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.