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

Splatterhorn – Residency

25th sighting in Monterey Bay
Fluke of Splatterhorn
Splatterhorn Confirmed in the catalog @93971
Apr 6 – Jul 9, 2025 · Monterey Bay

Monterey Bay · Apr – Jul 2025

62 m
Deepest dive
2:42
Longest dive
29
Dives
Sightings
5
Days between first and last sighting
94

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Apr 6, 202583 m—43 m
Apr 14, 202588 m—62 m
Apr 20, 202561 m—43 m
May 1, 202579 m—23 m
Jul 9, 2025-5 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
Apr 6, 2025 — seafloor 83 m (measured), deepest dive 43 m (modelled)Apr 6Apr 14, 2025 — seafloor 88 m (measured), deepest dive 62 m (modelled)Apr 14Apr 20, 2025 — seafloor 61 m (measured), deepest dive 43 m (modelled)Apr 20May 1, 2025 — seafloor 79 m (measured), deepest dive 23 m (modelled)May 1Jul 9, 2025 — seafloor -5 m (measured), deepest dive — (modelled)Jul 9

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

Dives

62 m
Deepest dive
2:42
Longest dive
29
Dives
18 m
Avg dive depth
5
Sightings
94
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
05010062 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (88 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 · Apr 14, 2025

measured
Seafloor depth
88 m
Sea-surface temperature
—
Distance from shore
7.0 km

Across the residency · 5 sightings

measured
Seafloor depth
-5 m – 88 m
Sea-surface temperature
—
Distance from shore
2.0 km – 7.0 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).

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Breach is an independent project. It is not affiliated with, nor endorsed by, Happywhale or GBIF.