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

Tamu – Residency

10th sighting in Monterey Bay
Fluke of Tamu
Tamu Confirmed in the catalog @298
Jul 29 – Aug 20, 2025 · Monterey Bay

Monterey Bay · Jul – Aug 2025

92 m
Deepest dive
3:15
Longest dive
41
Dives
Sightings
5
Days between first and last sighting
22

Dive stats modelled within real depth limits — not measured

Get actual dive data with Risa Deep →
SightingSeafloorSea tempDeepest dive (modelled)
Jul 29, 2025125 m—61 m
Aug 10, 20251,055 m—92 m
Aug 18, 202576 m—32 m
Aug 18, 202579 m—66 m
Aug 20, 202580 m—70 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
Jul 29, 2025 — seafloor 125 m (measured), deepest dive 61 m (modelled)Jul 29Aug 10, 2025 — seafloor 1,055 m (measured), deepest dive 92 m (modelled)Aug 10Aug 18, 2025 — seafloor 76 m (measured), deepest dive 32 m (modelled)Aug 18Aug 18, 2025 — seafloor 79 m (measured), deepest dive 66 m (modelled)Aug 18Aug 20, 2025 — seafloor 80 m (measured), deepest dive 70 m (modelled)Aug 20

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

Dives

92 m
Deepest dive
3:15
Longest dive
41
Dives
27 m
Avg dive depth
5
Sightings
22
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
05010092 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (1,055 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 · Aug 10, 2025

measured
Seafloor depth
1,055 m
Sea-surface temperature
—
Distance from shore
8.0 km

Across the residency · 5 sightings

measured
Seafloor depth
76 m – 1,055 m
Sea-surface temperature
—
Distance from shore
3.0 km – 9.0 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 5 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.