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

Heidi – Residency

14th sighting in Monterey Bay
Fluke of Heidi
Heidi Confirmed in the catalog @27164
Sep 23 – Oct 13, 2023 · Monterey Bay

Monterey Bay · Sep – Oct 2023

91 m
Deepest dive
3:35
Longest dive
86
Dives
Sightings
6
Days between first and last sighting
21

Dive stats modelled within real depth limits — not measured

Get actual dive data with Risa Deep →
SightingSeafloorSea tempDeepest dive (modelled)
Sep 23, 202371 m—48 m
Sep 25, 202322 m—18 m
Oct 4, 202397 m—84 m
Oct 6, 202370 m—55 m
Oct 7, 202384 m—65 m
Oct 13, 2023567 m—91 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
Sep 23, 2023 — seafloor 71 m (measured), deepest dive 48 m (modelled)Sep 23Sep 25, 2023 — seafloor 22 m (measured), deepest dive 18 m (modelled)Sep 25Oct 4, 2023 — seafloor 97 m (measured), deepest dive 84 m (modelled)Oct 4Oct 6, 2023 — seafloor 70 m (measured), deepest dive 55 m (modelled)Oct 6Oct 7, 2023 — seafloor 84 m (measured), deepest dive 65 m (modelled)Oct 7Oct 13, 2023 — seafloor 567 m (measured), deepest dive 91 m (modelled)Oct 13

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

Dives

91 m
Deepest dive
3:35
Longest dive
86
Dives
24 m
Avg dive depth
6
Sightings
21
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
05010091 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (567 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 · Oct 13, 2023

measured
Seafloor depth
567 m
Sea-surface temperature
—
Distance from shore
16.0 km

Across the residency · 6 sightings

measured
Seafloor depth
22 m – 567 m
Sea-surface temperature
—
Distance from shore
2.0 km – 16.0 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 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).

Happywhale runs on donations: support Happywhale →

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