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Gulf of Maine

Milkweed – Residency

51st sighting in Gulf of Maine
Fluke of Milkweed
Milkweed Confirmed in the catalog @14868
May 17 – Sep 30, 2026 · Gulf of Maine

Whole Summer, Same Sand

Sandlance thick again, elbow to elbow with old feeding neighbors all season.

43 m
Deepest dive
1:40
Longest dive
175
Dives
Sightings
14
Days between first and last sighting
136

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
May 17, 202636 m9.5°C24 m
Jun 19, 202624 m16.0°C21 m
Jun 28, 202623 m17.9°C21 m
Jun 29, 202628 m17.9°C24 m
Jul 3, 202636 m19.9°C32 m
Jul 3, 202636 m19.9°C33 m
Aug 4, 202627 m19.3°C23 m
Aug 5, 202623 m18.9°C18 m
Aug 8, 202628 m21.0°C21 m
Aug 9, 202635 m21.3°C29 m
Aug 27, 202648 m20.5°C43 m
Aug 28, 202633 m20.2°C22 m
Sep 12, 202640 m19.0°C32 m
Sep 30, 202644 m16.7°C28 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
May 17, 2026 — seafloor 36 m (measured), deepest dive 24 m (modelled)May 17Jun 19, 2026 — seafloor 24 m (measured), deepest dive 21 m (modelled)Jun 28, 2026 — seafloor 23 m (measured), deepest dive 21 m (modelled)Jun 29, 2026 — seafloor 28 m (measured), deepest dive 24 m (modelled)Jun 29Jul 3, 2026 — seafloor 36 m (measured), deepest dive 32 m (modelled)Jul 3, 2026 — seafloor 36 m (measured), deepest dive 33 m (modelled)Aug 4, 2026 — seafloor 27 m (measured), deepest dive 23 m (modelled)Aug 4Aug 5, 2026 — seafloor 23 m (measured), deepest dive 18 m (modelled)Aug 8, 2026 — seafloor 28 m (measured), deepest dive 21 m (modelled)Aug 9, 2026 — seafloor 35 m (measured), deepest dive 29 m (modelled)Aug 9Aug 27, 2026 — seafloor 48 m (measured), deepest dive 43 m (modelled)Aug 28, 2026 — seafloor 33 m (measured), deepest dive 22 m (modelled)Sep 12, 2026 — seafloor 40 m (measured), deepest dive 32 m (modelled)Sep 12Sep 30, 2026 — seafloor 44 m (measured), deepest dive 28 m (modelled)

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

Dives

43 m
Deepest dive
1:40
Longest dive
175
Dives
14 m
Avg dive depth
14
Sightings
136
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
0255043 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (48 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 27, 2026

measured
Seafloor depth
48 m
Sea-surface temperature
20.5°C
Distance from shore
6.0 km

Across the residency · 14 sightings

measured
Seafloor depth
23 m – 48 m
Sea-surface temperature
9.5°C – 21.3°C
Distance from shore
6.0 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 14 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.