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They also possess aglomerular kidneys, an adaptation that aids the retention of these antifreeze proteins. [ 16 ] While the majority of animal species have up to 45% of hemoglobin (or other oxygen-binding and oxygen-transporting pigments) in their blood, the notothenioids of the family Channichthyidae do not express any globin proteins in their ...
Like many other notothenioid fishes, it lacks a swim bladder. [2] Bone density increases during maturation, resulting in reduced buoyancy and the transition from pelagic to demersal swimming behavior. [13] Adults N. coriiceps possess a dense, well-developed skeleton compared to its congener Notothenia rossii, accounting for its reduced buoyancy ...
The name Notothenia means "coming from the south", a reference to the Antarctic distribution of the genus. [3] They are traditionally placed in the order Perciformes together with their relatives, [ 4 ] Actual phylogenetic relationships among species of suborder Notothenioidei have not yet been determined with certainty.
Antarctic fish is a common name for a variety of fish that inhabit the Southern Ocean. There are relatively few families in this region, the most species-rich being the Liparidae (snailfishes), followed by Nototheniidae (cod icefishes). [1] The latter is one of eight different families that belong to the suborder Notothenioidei of the order ...
Notothenia is a genus of marine ray-finned fishes belonging to the family Nototheniidae, the notothens or cod icefishes with the species in this genus often having the common name of rockcod. They are native to the Southern Ocean and other waters around Antarctica .
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The crocodile icefish or white-blooded fish comprise a family (Channichthyidae) of notothenioid fish found in the Southern Ocean around Antarctica.They are the only known vertebrates to lack hemoglobin in their blood as adults. [2]
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