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

Dross – Residency

28th sighting in Gulf of Maine
Fluke of Dross
Dross Confirmed in the catalog @15615
Jun 10 – Oct 2, 2021 · Gulf of Maine

Gulf of Maine · Jun – Oct 2021

100 m
Deepest dive
4:18
Longest dive
202
Dives
Sightings
15
Days between first and last sighting
114
Deepest dive on record
100 m · this residency

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jun 10, 202134 m17.3°C13 m
Jun 25, 202144 m16.6°C32 m
Jun 27, 2021109 m17.4°C100 m
Jun 27, 202147 m17.1°C43 m
Jun 28, 202131 m17.3°C25 m
Jul 4, 202129 m16.3°C23 m
Jul 22, 202162 m20.1°C48 m
Jul 26, 202143 m20.7°C37 m
Aug 1, 202128 m19.4°C24 m
Aug 7, 202128 m19.8°C24 m
Aug 21, 202135 m21.6°C17 m
Aug 27, 202162 m21.7°C54 m
Sep 4, 202147 m18.5°C35 m
Sep 7, 202183 m18.6°C39 m
Oct 2, 202128 m17.2°C25 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 10, 2021 — seafloor 34 m (measured), deepest dive 13 m (modelled)Jun 10Jun 25, 2021 — seafloor 44 m (measured), deepest dive 32 m (modelled)Jun 27, 2021 — seafloor 109 m (measured), deepest dive 100 m (modelled)Jun 27, 2021 — seafloor 47 m (measured), deepest dive 43 m (modelled)Jun 27Jun 28, 2021 — seafloor 31 m (measured), deepest dive 25 m (modelled)Jul 4, 2021 — seafloor 29 m (measured), deepest dive 23 m (modelled)Jul 22, 2021 — seafloor 62 m (measured), deepest dive 48 m (modelled)Jul 22Jul 26, 2021 — seafloor 43 m (measured), deepest dive 37 m (modelled)Aug 1, 2021 — seafloor 28 m (measured), deepest dive 24 m (modelled)Aug 7, 2021 — seafloor 28 m (measured), deepest dive 24 m (modelled)Aug 7Aug 21, 2021 — seafloor 35 m (measured), deepest dive 17 m (modelled)Aug 27, 2021 — seafloor 62 m (measured), deepest dive 54 m (modelled)Sep 4, 2021 — seafloor 47 m (measured), deepest dive 35 m (modelled)Sep 4Sep 7, 2021 — seafloor 83 m (measured), deepest dive 39 m (modelled)Oct 2, 2021 — seafloor 28 m (measured), deepest dive 25 m (modelled)

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

Dives

100 m
Deepest dive
4:18
Longest dive
202
Dives
17 m
Avg dive depth
15
Sightings
114
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
050100100 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (109 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 · Jun 27, 2021

measured
Seafloor depth
109 m
Sea-surface temperature
17.4°C
Distance from shore
26.0 km

Across the residency · 15 sightings

measured
Seafloor depth
28 m – 109 m
Sea-surface temperature
16.3°C – 21.7°C
Distance from shore
5.0 km – 32.0 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 15 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.