Bald Notothen

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Bald Notothen
Species:	Pagothenia borchgrevinki
Size:	20 cm (8 in)
Category:	Small Marine Life
Forms:	Adult only
Location:	Iceberg Cavern
Time:	Day and night
Dangerous:	No

The bald notothen (Pagothenia borchgrevinki) is a small species of fish only found in Endless Ocean 2.

It has an unremarkable silver-and-gray coloration. Like most Antarctic fish, it can survive in the cold waters of its home with special proteins it produces.

In-Game

Marine Encyclopedia

Endless Ocean 2

Description

"This fish lives in water as cold as 27°F in the Antarctic. Normally a fish would freeze in these temperatures, but this species has a special antifreeze protein that protects it."

Location

Endless Ocean 2

Bald notothens can be found under zoom-mode spots in the Iceberg Cavern in the Weddell Sea, at coordinates C-3NE and C-3NW in the Hall of Radiance.

Behavior

These small fish swim around slowly, usually in groups of two or three per zoom-mode glow; however, they can appear alone.

Gallery

Notes

Real-Life Information

1/2

• True to the in-game description, the bald notothen is able to survive in below-freezing temperatures due to special proteins in its bloodstream. These proteins are called antifreeze proteins (AFPs) or ice-structuring proteins (ISPs). These proteins bind to ice crystals and prevent them from forming and growing, which would be fatal for the fish. All fish in the suborder Notothenioidei (Antarctic notothenioids) have these proteins.
  • These AFPs have seen successful commercial use since the late 2000's in cold desserts such as ice creams and yogurts, due to their abilities to inhibit ice growth as well as prevent melting. The AFPs used commercially can be extracted from the collagen of notothens, though synthetic counterparts have recently been developed.
• The bald notothen may prey upon other bald notothens, as well as on sea butterflies and Antarctic silverfish. However, adults mostly eat copepods, a kind of tiny crustacean, and krill. The bald notothen is preyed upon by the Antarctic toothfish, south polar skua, emperor penguin, and Adelie penguin. In fact, the entire suborder Notothenioidei is made up of fish that are important to the Antarctic food chain.
• Compared with other similar species, many of the bald notothen's features appear specialized to life in the Arctic water column. These include layers of reflective material beneath its skin and eyes which better camouflages it with the ice, as well as eyes adapted both for day and night vision.
• The bald notothen is also sometimes called the bald rockcod.

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