Notothenioidei

E256845

Notothenioidei is a suborder of mostly Antarctic and sub-Antarctic fishes, including the famous antifreeze protein–bearing icefishes that dominate Southern Ocean ecosystems.

All labels observed (2)

Label Occurrences
Nototheniidae 1
Notothenioidei canonical 1

How this entity was disambiguated

Statements (50)

Predicate Object
instanceOf fish suborder
taxon
adaptation buoyancy regulation via reduced bone density and increased lipids
reduced skeletal ossification in many species
tolerance of freezing temperatures near −1.9 °C
bodyTemperatureRelation body temperature close to ambient seawater temperature
class Actinopterygii
climateAdaptation cold-specialized stenothermal physiology
commonName Antarctic notothenioid fishes
diet benthic invertebrates
smaller fishes
zooplankton
distribution Antarctic waters
Southern Ocean
sub-Antarctic waters
ecologicalRole dominant demersal fishes in Antarctic shelf ecosystems
important prey for seals, penguins, and toothed whales
economicUse commercial fisheries for some species
research models for cold adaptation and antifreeze proteins
evolutionaryEvent adaptive radiation in the Southern Ocean
evolutionaryTimeframe diversified mainly during Neogene cooling of Southern Ocean
habitat benthic marine environments
pelagic marine environments
includes Artedidraconidae
Bathydraconidae
Bovichtidae
Channichthyidae
Eleginopsidae
Harpagiferidae
Nototheniidae
Pseudaphritidae
infraclass Teleostei
kingdom Animalia
notableFor antifreeze glycoproteins in blood and body fluids
dominance in Antarctic fish biomass
presence of hemoglobinless icefishes in family Channichthyidae
notableMemberGroup icefishes
oxygenPhysiology some members lack hemoglobin
parentTaxon Perciformes
phylum Chordata
physiologicalFeature presence of antifreeze glycoprotein genes derived from trypsinogen-like ancestor
reproduction generally produce large yolky eggs
often exhibit benthic egg deposition
researchImportance model for studying evolution under extreme cold
model for studying gene duplication and neofunctionalization
superorder Acanthopterygii
taxonRank suborder
threat vulnerability to ocean acidification
vulnerability to ocean warming
trophicLevel mostly mid-trophic-level predators

How these facts were elicited

Referenced by (2)

Full triples — surface form annotated when it differs from this entity's canonical label.

Perciformes hasSuborder Notothenioidei
Antarctic toothfish family Notothenioidei
this entity surface form: Nototheniidae