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

Mocha – Residency

5th sighting in Gulf of Maine
Fluke of Mocha
Mocha Confirmed in the catalog @75672
Aug 2 – Sep 2, 2026 · Gulf of Maine

Shelf Edge, Every Year

These cold miles keep feeding me right, calves included — good sea to know this well.

45 m
Deepest dive
2:12
Longest dive
47
Dives
Sightings
4
Days between first and last sighting
31

Dive stats modelled within real depth limits — not measured

Get actual dive data with Risa Deep →
SightingSeafloorSea tempDeepest dive (modelled)
Aug 2, 202651 m14.1°C36 m
Aug 24, 202678 m18.1°C45 m
Sep 1, 202617 m14.3°C15 m
Sep 2, 202611 m14.3°C9 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
Aug 2, 2026 — seafloor 51 m (measured), deepest dive 36 m (modelled)Aug 2Aug 24, 2026 — seafloor 78 m (measured), deepest dive 45 m (modelled)Aug 24Sep 1, 2026 — seafloor 17 m (measured), deepest dive 15 m (modelled)Sep 1Sep 2, 2026 — seafloor 11 m (measured), deepest dive 9 m (modelled)Sep 2

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

Dives

45 m
Deepest dive
2:12
Longest dive
47
Dives
16 m
Avg dive depth
4
Sightings
31
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
0255045 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (78 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.

Unlock with Risa Deep

Place

Where this happened · Aug 24, 2026

measured
Seafloor depth
78 m
Sea-surface temperature
18.1°C
Distance from shore
2.0 km

Across the residency · 4 sightings

measured
Seafloor depth
11 m – 78 m
Sea-surface temperature
14.1°C – 18.1°C
Distance from shore
2.0 km – 4.0 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 4 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).

Happywhale runs on donations: support Happywhale →

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