Onocorhynchus Dossier

Oncorhynchus rastrosus

Common Name Sabertooth Salmon
Group Fish
Species Oncorhynchus grexlamia
Time Late Miocene - Mid Pleistocene
Diet Carnivore
Temperament Evasive, Aggressive when attacked
PC Release Date May 4, 2016 (v240.0)
Xbox Release Date May 17, 2016 (v734.0)
Tameable No
Rideable No

Fairly unremarkable by the Island's standards, Oncorhynchus Grexlamia is a generally passive fish. Far smaller than a human, its main form of protection is swimming in a large school. Oncorhynchus does not like conflict, and generally swims away from anything larger than it at very high speeds.

Once provoked, however, Oncorhynchus becomes very aggressive, along with its nearby brethren. It locks onto the aggressor with its long "saberteeth" and begins draining that creature's blood. This loss of blood is not too dangerous alone, but when a school of Oncorhyncus attack all at once, their would-be aggressor quickly loses speed and stamina from bloodloss, drowning if it cannot breath underwater.


Like many of the smaller fish found on or around the Island, Oncorhynchus cannot be tamed, but it is often herded and raised for its resources. In particular, certain cuts of Oncorhynchus meat are considered superb quality, and are often referred to as "Prime Fish" used for specific high-end concoctions.

— The Dossier

The Oncorhynchus or Sabertooth Samon is a small carnivorous fish found in the oceans of the Ark.

Wikipedia has a more detailed and comprehensive article on Oncorhynchus


The Sabertooth Salmon is a common fish species in the rivers of the ARK, and thus, a popular prey item for many water-dwelling species on the island. It resembles a modern-day salmon in all aspects save for large fangs protruding from its mouth that give the creature its name.


Sabertooth salmon lazily swim about in schools until a player enters the water, which, at that point, they begin to swim away from the player in all directions. However, if one salmon is attacked and still alive, it and its companions will all rush in to attack the player in a vicious frenzy of tooth and fin until they or the player are killed.


  • The dossier was revealed on February 1, 2016
  • Like Coelacanths, they can appear in different sizes.

Trivia not relevant for the game

  • Beyond their fangs, adults of Sabertooth salmon had larger gill rakers compared to their smaller, modern relatives, leading scientists to suggest that the adults ate plankton.


Gameplay Images





Megapithecus Boss Arena, and Spotlight Lystrosaurus, Sabertooth Salmon, and Arthropluera!

Megapithecus Boss Arena, and Spotlight Lystrosaurus, Sabertooth Salmon, and Arthropluera!