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

A-Plus – Residency

19th sighting in Gulf of Maine
Fluke of A-Plus
A-Plus Confirmed in the catalog @17057
May 18 – Oct 10, 2026 · Gulf of Maine

This Shelf, All Summer

Sand eels thick, company everywhere, my calf out there lunging on her own now.

30 m
Deepest dive
1:39
Longest dive
109
Dives
Sightings
11
Days between first and last sighting
145

Dive stats modelled within real depth limits — not measured

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SightingSeafloorSea tempDeepest dive (modelled)
May 18, 202631 m10.7°C28 m
Jun 19, 202628 m16.1°C24 m
Jul 12, 202624 m20.2°C20 m
Jul 12, 202625 m20.2°C17 m
Jul 12, 202623 m20.1°C20 m
Jul 27, 202646 m19.5°C30 m
Aug 1, 202652 m18.6°C26 m
Aug 4, 202628 m18.6°C25 m
Aug 9, 202636 m20.7°C28 m
Aug 14, 202626 m21.2°C23 m
Oct 10, 202628 m—26 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 18, 2026 — seafloor 31 m (measured), deepest dive 28 m (modelled)May 18Jun 19, 2026 — seafloor 28 m (measured), deepest dive 24 m (modelled)Jun 19Jul 12, 2026 — seafloor 24 m (measured), deepest dive 20 m (modelled)Jul 12Jul 12, 2026 — seafloor 25 m (measured), deepest dive 17 m (modelled)Jul 12Jul 12, 2026 — seafloor 23 m (measured), deepest dive 20 m (modelled)Jul 12Jul 27, 2026 — seafloor 46 m (measured), deepest dive 30 m (modelled)Jul 27Aug 1, 2026 — seafloor 52 m (measured), deepest dive 26 m (modelled)Aug 1Aug 4, 2026 — seafloor 28 m (measured), deepest dive 25 m (modelled)Aug 4Aug 9, 2026 — seafloor 36 m (measured), deepest dive 28 m (modelled)Aug 9Aug 14, 2026 — seafloor 26 m (measured), deepest dive 23 m (modelled)Aug 14Oct 10, 2026 — seafloor 28 m (measured), deepest dive 26 m (modelled)Oct 10

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

Dives

30 m
Deepest dive
1:39
Longest dive
109
Dives
13 m
Avg dive depth
11
Sightings
145
Days first → last

Dive metrics are modelled within real depth limits — not measured

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Dive profile

modelled
0255030 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (46 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 · Jul 27, 2026

measured
Seafloor depth
46 m
Sea-surface temperature
19.5°C
Distance from shore
9.0 km

Across the residency · 11 sightings

measured
Seafloor depth
23 m – 52 m
Sea-surface temperature
10.7°C – 21.2°C
Distance from shore
6.0 km – 31.0 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 11 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.