Activity map — real sighting points on an OpenStreetMap basemap © OpenStreetMap contributors
Gulf of St. Lawrence

Bulldog – Residency

5th sighting in Gulf of St. Lawrence
Fluke of Bulldog
Bulldog Confirmed in the catalog @141161
Jun 17 – Jul 3, 2025 · Gulf of St. Lawrence

Gulf of St. Lawrence · Jun – Jul 2025

61 m
Deepest dive
2:17
Longest dive
46
Dives
Sightings
5
Days between first and last sighting
16

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jun 17, 202572 m—28 m
Jun 19, 202560 m—34 m
Jun 23, 202577 m—49 m
Jul 2, 202580 m—61 m
Jul 3, 202537 m—34 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
Jun 17, 2025 — seafloor 72 m (measured), deepest dive 28 m (modelled)Jun 17Jun 19, 2025 — seafloor 60 m (measured), deepest dive 34 m (modelled)Jun 19Jun 23, 2025 — seafloor 77 m (measured), deepest dive 49 m (modelled)Jun 23Jul 2, 2025 — seafloor 80 m (measured), deepest dive 61 m (modelled)Jul 2Jul 3, 2025 — seafloor 37 m (measured), deepest dive 34 m (modelled)Jul 3

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

Dives

61 m
Deepest dive
2:17
Longest dive
46
Dives
19 m
Avg dive depth
5
Sightings
16
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
05010061 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (80 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 · Jul 2, 2025

measured
Seafloor depth
80 m
Sea-surface temperature
—
Distance from shore
1.0 km

Across the residency · 5 sightings

measured
Seafloor depth
37 m – 80 m
Sea-surface temperature
—
Distance from shore
1.0 km – 4.0 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.