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

Dashdot – Residency

10th sighting in Gulf of Maine
Fluke of Dashdot
Dashdot Confirmed in the catalog @44376
Jun 19 – Aug 9, 2026 · Gulf of Maine

Shelf Life, Sunny Side

Warm on top, sandy below, and the crowd keeps introducing me to new flukes.

26 m
Deepest dive
1:16
Longest dive
53
Dives
Sightings
5
Days between first and last sighting
51

Dive stats modelled within real depth limits — not measured

Get actual dive data with Risa Deep →
SightingSeafloorSea tempDeepest dive (modelled)
Jun 19, 202628 m16.1°C20 m
Jun 27, 202627 m17.9°C10 m
Jun 29, 202628 m17.9°C20 m
Jul 12, 202624 m20.2°C21 m
Aug 9, 202635 m21.4°C26 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 19, 2026 — seafloor 28 m (measured), deepest dive 20 m (modelled)Jun 19Jun 27, 2026 — seafloor 27 m (measured), deepest dive 10 m (modelled)Jun 27Jun 29, 2026 — seafloor 28 m (measured), deepest dive 20 m (modelled)Jun 29Jul 12, 2026 — seafloor 24 m (measured), deepest dive 21 m (modelled)Jul 12Aug 9, 2026 — seafloor 35 m (measured), deepest dive 26 m (modelled)Aug 9

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

Dives

26 m
Deepest dive
1:16
Longest dive
53
Dives
12 m
Avg dive depth
5
Sightings
51
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
0255026 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (35 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 9, 2026

measured
Seafloor depth
35 m
Sea-surface temperature
21.4°C
Distance from shore
11.0 km

Across the residency · 5 sightings

measured
Seafloor depth
24 m – 35 m
Sea-surface temperature
16.1°C – 21.4°C
Distance from shore
11.0 km – 25.0 km

Sources: GEBCO seafloor grid · NASA JPL MUR sea temperature · 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.