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

Dross – Residency

41st sighting in Gulf of Maine
Fluke of Dross
Dross Confirmed in the catalog @15615
Jun 16 – Aug 17, 2024 · Gulf of Maine

Gulf of Maine · Jun – Aug 2024

35 m
Deepest dive
1:26
Longest dive
63
Dives
Sightings
5
Days between first and last sighting
62

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jun 16, 202428 m17.7°C24 m
Jun 18, 202429 m17.2°C20 m
Jul 14, 202428 m19.0°C23 m
Jul 27, 202428 m18.9°C26 m
Aug 17, 202440 m19.7°C35 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 16, 2024 — seafloor 28 m (measured), deepest dive 24 m (modelled)Jun 16Jun 18, 2024 — seafloor 29 m (measured), deepest dive 20 m (modelled)Jun 18Jul 14, 2024 — seafloor 28 m (measured), deepest dive 23 m (modelled)Jul 14Jul 27, 2024 — seafloor 28 m (measured), deepest dive 26 m (modelled)Jul 27Aug 17, 2024 — seafloor 40 m (measured), deepest dive 35 m (modelled)Aug 17

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

Dives

35 m
Deepest dive
1:26
Longest dive
63
Dives
12 m
Avg dive depth
5
Sightings
62
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
0255035 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (40 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 · Aug 17, 2024

measured
Seafloor depth
40 m
Sea-surface temperature
19.7°C
Distance from shore
16.0 km

Across the residency · 5 sightings

measured
Seafloor depth
28 m – 40 m
Sea-surface temperature
17.2°C – 19.7°C
Distance from shore
16.0 km – 27.0 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).

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