Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
Prince William Sound

Mahalo Magpie – Residency

5th sighting in Prince William Sound
Fluke of Mahalo Magpie
Mahalo Magpie Confirmed in the catalog @33716
Jun 24 – Jul 14, 2023 · Prince William Sound

Prince William Sound · Jun – Jul 2023

47 m
Deepest dive
2:11
Longest dive
12
Dives
Sightings
2
Days between first and last sighting
19

Dive stats modelled within real depth limits — not measured

Get actual dive data with Risa Deep →
SightingSeafloorSea tempDeepest dive (modelled)
Jun 24, 202331 m—23 m
Jul 14, 2023279 m—47 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 24, 2023 — seafloor 31 m (measured), deepest dive 23 m (modelled)Jun 24Jul 14, 2023 — seafloor 279 m (measured), deepest dive 47 m (modelled)Jul 14

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

Dives

47 m
Deepest dive
2:11
Longest dive
12
Dives
19 m
Avg dive depth
2
Sightings
19
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
0255047 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (279 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 · Jul 14, 2023

measured
Seafloor depth
279 m
Sea-surface temperature
—
Distance from shore
3.0 km

Across the residency · 2 sightings

measured
Seafloor depth
31 m – 279 m
Sea-surface temperature
—
Distance from shore
1.0 km – 3.0 km

Sources: GEBCO seafloor grid · 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.