Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
Monterey Bay

Mary Jo – Residency

18th sighting in Monterey Bay
Fluke of Mary Jo
Mary Jo Confirmed in the catalog @1422
May 26 – Jul 29, 2025 · Monterey Bay

Monterey Bay · May – Jul 2025

160 m
Deepest dive
4:43
Longest dive
67
Dives
Sightings
6
Days between first and last sighting
64

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
May 26, 2025655 m12.9°C101 m
May 29, 2025434 m13.9°C160 m
Jul 27, 2025567 m16.1°C78 m
Jul 27, 2025567 m16.1°C87 m
Jul 28, 2025177 m16.6°C83 m
Jul 29, 2025279 m16.5°C63 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 26, 2025 — seafloor 655 m (measured), deepest dive 101 m (modelled)May 26May 29, 2025 — seafloor 434 m (measured), deepest dive 160 m (modelled)May 29Jul 27, 2025 — seafloor 567 m (measured), deepest dive 78 m (modelled)Jul 27Jul 27, 2025 — seafloor 567 m (measured), deepest dive 87 m (modelled)Jul 27Jul 28, 2025 — seafloor 177 m (measured), deepest dive 83 m (modelled)Jul 28Jul 29, 2025 — seafloor 279 m (measured), deepest dive 63 m (modelled)Jul 29

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

Dives

160 m
Deepest dive
4:43
Longest dive
67
Dives
31 m
Avg dive depth
6
Sightings
64
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
0100200160 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (434 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 · May 29, 2025

measured
Seafloor depth
434 m
Sea-surface temperature
13.9°C
Distance from shore
16.0 km

Across the residency · 6 sightings

measured
Seafloor depth
177 m – 655 m
Sea-surface temperature
12.9°C – 16.6°C
Distance from shore
6.0 km – 16.0 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 6 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.