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

Chaela – Residency

23rd sighting in Chatham Strait
Fluke of Chaela
Chaela Confirmed in the catalog @26945
May 21 – Jun 2, 2026 · Chatham Strait

Chatham Strait, Late Spring

Kelp light's green again this year, whales everywhere, cold water feels right.

65 m
Deepest dive
2:40
Longest dive
19
Dives
Sightings
2
Days between first and last sighting
13

Dive stats modelled within real depth limits — not measured

Get actual dive data with Risa Deep →
SightingSeafloorSea tempDeepest dive (modelled)
May 21, 2026100 m8.3°C39 m
Jun 2, 2026100 m8.4°C65 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
May 21, 2026 — seafloor 100 m (measured), deepest dive 39 m (modelled)May 21Jun 2, 2026 — seafloor 100 m (measured), deepest dive 65 m (modelled)Jun 2

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

Dives

65 m
Deepest dive
2:40
Longest dive
19
Dives
20 m
Avg dive depth
2
Sightings
13
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
05010065 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (100 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.

Unlock with Risa Deep

Place

Where this happened · Jun 2, 2026

measured
Seafloor depth
100 m
Sea-surface temperature
8.4°C
Distance from shore
5.0 km

Across the residency · 2 sightings

measured
Seafloor depth
100 m
Sea-surface temperature
8.3°C – 8.4°C
Distance from shore
5.0 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 2 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).

Happywhale runs on donations: support Happywhale →

Breach is an independent project. It is not affiliated with, nor endorsed by, Happywhale or GBIF.