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

Clamp – Residency

14th sighting in Gulf of Maine
Fluke of Clamp
Clamp Confirmed in the catalog @5589
Aug 21 – 29, 2023 · Gulf of Maine

Gulf of Maine · Aug 2023

65 m
Deepest dive
2:38
Longest dive
56
Dives
Sightings
2
Days between first and last sighting
8

Dive stats modelled within real depth limits — not measured

Get actual dive data with Risa Deep →
SightingSeafloorSea tempDeepest dive (modelled)
Aug 21, 202378 m19.2°C42 m
Aug 29, 202398 m18.9°C65 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 21, 2023 — seafloor 78 m (measured), deepest dive 42 m (modelled)Aug 21Aug 29, 2023 — seafloor 98 m (measured), deepest dive 65 m (modelled)Aug 29

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

Dives

65 m
Deepest dive
2:38
Longest dive
56
Dives
22 m
Avg dive depth
2
Sightings
8
Days first → last

Dive metrics are modelled within real depth limits — not measured

Get actual dive data with Risa Deep →

Dive profile

modelled
05010065 mstartdive sequence (illustrative)

Depth shaped by the seafloor limit here (98 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 29, 2023

measured
Seafloor depth
98 m
Sea-surface temperature
18.9°C
Distance from shore
29.0 km

Across the residency · 2 sightings

measured
Seafloor depth
78 m – 98 m
Sea-surface temperature
18.9°C – 19.2°C
Distance from shore
15.0 km – 29.0 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 2 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.