Giant grenadier
A large deep-sea rattail from the North Pacific.
The giant grenadier is a massive deep-water fish found across the northern Pacific Ocean. It lives on continental slopes and feeds on squid. Though abundant, it has little commercial value due to its soft flesh.
- Sole member of the genus Albatrossia.
- Grows up to 2.1 metres in length.
- Lives at depths up to 4,250 metres.
- Feeds mainly on vampire squid.
- Meat is soft and low in protein.
What it is
This species is a very large member of the rattail group, known for its elongated and pointed tail. It is the sole representative of its genus. Adults can reach lengths of over two metres. The body tapers significantly towards the rear, a typical trait for this type of deep-sea fish. Its scientific name distinguishes it from other grenadiers.
Where it lives
These fish inhabit the northern Pacific Ocean. Their distribution stretches from northern Japan and the Sea of Okhotsk across the Bering Sea. They are found eastward to the Gulf of Alaska and south along the coast to northern Baja California in Mexico. They live at considerable depths, ranging from 140 metres down to at least 4,250 metres, though they are most common between 700 and 1100 metres.
How it lives
In the upper continental slopes of the North Pacific, this species is one of the most numerous fish between 400 and 1,000 metres depth. It acts as an apex predator in this environment. Its diet consists primarily of specific squid species, including the vampire squid and Octopoteuthis deletron. This feeding habit places it high in the local food web.
Fish and people
Despite their high abundance, these fish have low commercial worth. Fishermen often catch them as by-catch rather than targeting them directly. Efforts to create a dedicated fishery have failed because the meat is considered unpalatable. The flesh has a soft texture, contains high levels of moisture, and offers low protein content, making it unsuitable for most markets.
Questions people ask about Giant grenadier
How big does the giant grenadier get?
This fish can grow to a total length of 2.1 metres, which is approximately six feet and eleven inches. It is considered a very large species within the rattail family.
Why is it not sold in shops?
The fish is categorized as unpalatable for human consumption. Its flesh has a soft texture, high moisture content, and low protein levels, which makes it undesirable for commercial food markets.
Where does this fish live?
It is found in the North Pacific Ocean, from Japan and Russia to Alaska and Mexico. It inhabits deep waters, typically between 700 and 1100 metres, but can go much deeper.
Good reading and sources
The facts on this page come from the Wikipedia article "Albatrossia", written by its contributors and used under the CC BY-SA 4.0 licence, and from its Wikidata record (CC0). EveryFish rewrote the text in its own words, with AI assistance, and compares every page with the article to make sure no passage is copied. It may be reused under the same CC BY-SA 4.0 licence with a link back.
It may contain mistakes, and figures change over time. Nothing here is investment or buying advice. If something is wrong, tell us. Last refreshed 2026-11-15.
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