Arctogadus

Arctogadus is a genus of fish in the family Gadidae, commonly known as the cod family. It is a small genus, consisting of only two species: Arctogadus glacialis and Arctogadus borisovi. These species are found in the Arctic Ocean and are known for their ability to survive in extremely cold temperatures.

Taxonomy

The genus Arctogadus was first described by the Russian ichthyologist Anatoly Petrovich Andriashev in 1937. The name Arctogadus is derived from the Greek words 'arktos' meaning bear and 'gadus' meaning cod, referring to the Arctic habitat of these species.

Species

There are two recognized species in this genus:

• Arctogadus glacialis (Petermann, 1872) – also known as the glacial cod.
• Arctogadus borisovi (Dryagin, 1932) – also known as Borisov's cod.

Description

Species of Arctogadus are medium-sized fish, typically reaching lengths of 30-40 cm. They have a streamlined body shape, adapted for fast swimming in the cold Arctic waters. Their coloration is typically a pale silvery-blue, providing camouflage against the ice.

Distribution and habitat

Arctogadus species are found in the Arctic Ocean, including the Barents Sea, the Kara Sea, and the Laptev Sea. They inhabit cold, deep waters, often found at depths of 200-800 meters.

Ecology and behavior

Arctogadus species are carnivorous, feeding primarily on small fish and invertebrates. They are known to be solitary animals, with little social interaction observed outside of the breeding season.

Conservation status

Due to their remote habitat and lack of commercial interest, Arctogadus species are not currently considered to be at risk of extinction. However, like all Arctic species, they may be vulnerable to the effects of climate change.

See also

• Gadidae – the cod family
• Arctic Ocean – the habitat of Arctogadus species
• Climate change – a potential threat to Arctic species