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

Maganda – Residency

32nd sighting in Chatham Strait
Fluke of Maganda
Maganda Confirmed in the catalog @13767
Jun 21 – Jul 17, 2025 · Chatham Strait

Chatham Strait · Jun – Jul 2025

23 m
Deepest dive
1:18
Longest dive
42
Dives
Sightings
3
Days between first and last sighting
26

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jun 21, 202527 m11.7°C22 m
Jun 26, 202526 m10.9°C23 m
Jul 17, 20254 m12.0°C4 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 21, 2025 — seafloor 27 m (measured), deepest dive 22 m (modelled)Jun 21Jun 26, 2025 — seafloor 26 m (measured), deepest dive 23 m (modelled)Jun 26Jul 17, 2025 — seafloor 4 m (measured), deepest dive 4 m (modelled)Jul 17

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

Dives

23 m
Deepest dive
1:18
Longest dive
42
Dives
9 m
Avg dive depth
3
Sightings
26
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
0255023 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (26 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 26, 2025

measured
Seafloor depth
26 m
Sea-surface temperature
10.9°C
Distance from shore
2.0 km

Across the residency · 3 sightings

measured
Seafloor depth
4 m – 27 m
Sea-surface temperature
10.9°C – 12.0°C
Distance from shore
2.0 km – 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 3 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.