Sasifrass (FS) @3582
North Pacific humpback. Catalogued since 1997.
Chatham Strait · North Pacific
18 Following 2 Followers17
Sightings
29
Years
4
Crossings
Sightings by year
1997 – 20251997
2004
2012
2019
’26
Season Trends
DeepEffort across the feeding and breeding grounds, year over year.
Unlock with Risa DeepTrophy case
3 earnedCrossed the Gulf
First of the Year
Multi-Decade Veteran
Crossed the Gulf of Alaska — resighted on both the Hawaii breeding grounds and the Alaska feeding grounds.
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Pods
18 followingSEAK-5369 @10962 since Dec 29, 2024
Coccyzs aka Marribium (FS) @22278 since Dec 28, 2024
Antediluvian @5833 since Dec 28, 2024
Jatropha (FS) @6304 since Dec 28, 2024
SEAK-1229 @45080 since Dec 26, 2024
Recent activity
North Pacific · Sep 2025 Sep 30, 2025 · North Pacific 61 m deepest· 2:54 longest Au'au Channel · Dec 2024 Dec 26, 2024 · Au'au Channel 15 m deepest· 1:03 longest Chatham Strait · May 2024–Jul 2024 Jul 26, 2024 · Chatham Strait 98 m deepest· 3:23 longest Au'au Channel · Feb 2024 Feb 1, 2024 · Au'au Channel 18 m deepest· 1:21 longest
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