Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
Glacier Bay & Icy Strait

Malthusian – Residency

39th sighting in Glacier Bay & Icy Strait
Fluke of Malthusian
Malthusian Confirmed in the catalog @18600
Jun 26 – Aug 22, 2024 · Glacier Bay & Icy Strait

Glacier Bay & Icy Strait · Jun – Aug 2024

120 m
Deepest dive
4:23
Longest dive
128
Dives
Sightings
12
Days between first and last sighting
57

Dive stats modelled within real depth limits — not measured

Get actual dive data with Risa Deep →
SightingSeafloorSea tempDeepest dive (modelled)
Jun 26, 2024157 m11.9°C120 m
Jul 2, 202482 m12.6°C71 m
Jul 6, 202457 m12.5°C46 m
Jul 15, 2024132 m11.8°C95 m
Jul 15, 202439 m11.7°C32 m
Jul 17, 202452 m12.5°C34 m
Jul 19, 2024191 m12.9°C95 m
Aug 1, 2024104 m12.9°C47 m
Aug 1, 2024123 m12.4°C62 m
Aug 6, 20248 m14.7°C7 m
Aug 13, 202462 m13.6°C31 m
Aug 22, 202494 m13.9°C70 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 26, 2024 — seafloor 157 m (measured), deepest dive 120 m (modelled)Jun 26Jul 2, 2024 — seafloor 82 m (measured), deepest dive 71 m (modelled)Jul 2Jul 6, 2024 — seafloor 57 m (measured), deepest dive 46 m (modelled)Jul 6Jul 15, 2024 — seafloor 132 m (measured), deepest dive 95 m (modelled)Jul 15Jul 15, 2024 — seafloor 39 m (measured), deepest dive 32 m (modelled)Jul 15Jul 17, 2024 — seafloor 52 m (measured), deepest dive 34 m (modelled)Jul 17Jul 19, 2024 — seafloor 191 m (measured), deepest dive 95 m (modelled)Jul 19Aug 1, 2024 — seafloor 104 m (measured), deepest dive 47 m (modelled)Aug 1Aug 1, 2024 — seafloor 123 m (measured), deepest dive 62 m (modelled)Aug 1Aug 6, 2024 — seafloor 8 m (measured), deepest dive 7 m (modelled)Aug 6Aug 13, 2024 — seafloor 62 m (measured), deepest dive 31 m (modelled)Aug 13Aug 22, 2024 — seafloor 94 m (measured), deepest dive 70 m (modelled)Aug 22

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

Dives

120 m
Deepest dive
4:23
Longest dive
128
Dives
22 m
Avg dive depth
12
Sightings
57
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
075150120 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (157 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, 2024

measured
Seafloor depth
157 m
Sea-surface temperature
11.9°C
Distance from shore
3.0 km

Across the residency · 12 sightings

measured
Seafloor depth
8 m – 191 m
Sea-surface temperature
11.7°C – 14.7°C
Distance from shore
1.0 km – 3.0 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 12 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.