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

Milkweed – Residency

36th sighting in Gulf of Maine
Fluke of Milkweed
Milkweed Confirmed in the catalog @14868
Jun 29 – Aug 28, 2024 · Gulf of Maine

Gulf of Maine · Jun – Aug 2024

30 m
Deepest dive
1:32
Longest dive
83
Dives
Sightings
7
Days between first and last sighting
60

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
Jun 29, 202421 m16.7°C10 m
Jul 27, 202428 m18.9°C19 m
Jul 28, 202452 m18.4°C27 m
Aug 12, 202460 m19.4°C29 m
Aug 16, 202434 m19.7°C30 m
Aug 25, 202423 m19.7°C20 m
Aug 28, 202429 m20.1°C24 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 29, 2024 — seafloor 21 m (measured), deepest dive 10 m (modelled)Jun 29Jul 27, 2024 — seafloor 28 m (measured), deepest dive 19 m (modelled)Jul 27Jul 28, 2024 — seafloor 52 m (measured), deepest dive 27 m (modelled)Jul 28Aug 12, 2024 — seafloor 60 m (measured), deepest dive 29 m (modelled)Aug 12Aug 16, 2024 — seafloor 34 m (measured), deepest dive 30 m (modelled)Aug 16Aug 25, 2024 — seafloor 23 m (measured), deepest dive 20 m (modelled)Aug 25Aug 28, 2024 — seafloor 29 m (measured), deepest dive 24 m (modelled)Aug 28

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

Dives

30 m
Deepest dive
1:32
Longest dive
83
Dives
14 m
Avg dive depth
7
Sightings
60
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
0255030 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (34 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 16, 2024

measured
Seafloor depth
34 m
Sea-surface temperature
19.7°C
Distance from shore
30.0 km

Across the residency · 7 sightings

measured
Seafloor depth
21 m – 60 m
Sea-surface temperature
16.7°C – 20.1°C
Distance from shore
3.0 km – 30.0 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 7 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.