Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
Gulf of Maine

Spell – Residency

16th sighting in Gulf of Maine
Fluke of Spell
Spell Confirmed in the catalog @15312
Jul 27 – Aug 28, 2024 · Gulf of Maine

Gulf of Maine · Jul – Aug 2024

38 m
Deepest dive
1:28
Longest dive
38
Dives
Sightings
4
Days between first and last sighting
32

Dive stats modelled within real depth limits — not measured

Get actual dive data with Risa Deep →
SightingSeafloorSea tempDeepest dive (modelled)
Jul 27, 202446 m—38 m
Aug 24, 202441 m—26 m
Aug 25, 202424 m—20 m
Aug 28, 202421 m—19 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 27, 2024 — seafloor 46 m (measured), deepest dive 38 m (modelled)Jul 27Aug 24, 2024 — seafloor 41 m (measured), deepest dive 26 m (modelled)Aug 24Aug 25, 2024 — seafloor 24 m (measured), deepest dive 20 m (modelled)Aug 25Aug 28, 2024 — seafloor 21 m (measured), deepest dive 19 m (modelled)Aug 28

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

Dives

38 m
Deepest dive
1:28
Longest dive
38
Dives
15 m
Avg dive depth
4
Sightings
32
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
0255038 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (46 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 · Jul 27, 2024

measured
Seafloor depth
46 m
Sea-surface temperature
—
Distance from shore
9.0 km

Across the residency · 4 sightings

measured
Seafloor depth
21 m – 46 m
Sea-surface temperature
—
Distance from shore
2.0 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 4 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.