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

Streetlamp – Residency

11th sighting in Chatham Strait
Fluke of Streetlamp
Streetlamp Confirmed in the catalog @5662
Jul 29 – Aug 5, 2021 · Chatham Strait

Chatham Strait · Jul – Aug 2021

63 m
Deepest dive
3:00
Longest dive
38
Dives
Sightings
4
Days between first and last sighting
8

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jul 29, 202196 m12.8°C62 m
Aug 5, 2021138 m14.1°C30 m
Aug 5, 202188 m13.6°C63 m
Aug 5, 202161 m13.8°C54 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 29, 2021 — seafloor 96 m (measured), deepest dive 62 m (modelled)Jul 29Aug 5, 2021 — seafloor 138 m (measured), deepest dive 30 m (modelled)Aug 5Aug 5, 2021 — seafloor 88 m (measured), deepest dive 63 m (modelled)Aug 5Aug 5, 2021 — seafloor 61 m (measured), deepest dive 54 m (modelled)Aug 5

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

Dives

63 m
Deepest dive
3:00
Longest dive
38
Dives
23 m
Avg dive depth
4
Sightings
8
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010063 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (88 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 · Aug 5, 2021

measured
Seafloor depth
88 m
Sea-surface temperature
13.6°C
Distance from shore
2.0 km

Across the residency · 4 sightings

measured
Seafloor depth
61 m – 138 m
Sea-surface temperature
12.8°C – 14.1°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 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.