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

Casper – Residency

6th sighting in Chatham Strait
Fluke of Casper
Casper Confirmed in the catalog @26833
Jul 26, 2021 · Chatham Strait

Chatham Strait · Jul 2021

76 m
Deepest dive
2:18
Longest dive
10
Dives
Sightings
1
Days between first and last sighting
Same day

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jul 26, 202184 m12.9°C76 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 26, 2021 — seafloor 84 m (measured), deepest dive 76 m (modelled)Jul 26

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

Dives

76 m
Deepest dive
2:18
Longest dive
10
Dives
25 m
Avg dive depth
1
Sightings
Same day
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010076 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (84 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 26, 2021

measured
Seafloor depth
84 m
Sea-surface temperature
12.9°C
Distance from shore
1.0 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 1 catalogued encounter 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.