Data · collection
Lipid transport, lipid metabolism and cold adaptation in Antarctic notothenioid fish
Listed in NASA Earthdata CMR
Fish species of the suborder Notothenioidei are morphologically distinct in that they lack a swim bladder.
Description
To compensate, high levels of tissue lipids aid in maintaining buoyancy. The lipids also increase the diffusing capacity of oxygen and provide an energy store to support aerobic metabolism.
The oxidation of fatty acids - derived from lipid stores - is the preferred metabolic fuel in this group of fish. Previously it was found that in the Antarctic toothfish, fatty acid transport is carried out using high density lipoprotein in blood, as opposed to a long chain fatty acid transporter, albumin. Research was conducted over three seasons with the aim to increase biochemical and genetic knowledge of Antarctic notothenioid fish, to determine whether the loss of albumin expression and the utilisation of alternative proteins, such as high density lipoprotein, for lipid transport is an adaptation of Antarctic fish to their extreme environment and therefore common across the Antarctic notothenioid fish.
Read the rest (3 more)
All investigations hoped to contribute to the question "What are the main factors that have driven the evolution of individual species in the Southern Ocean?" A number of individuals from 9 notothenioid and 1 non-notothenioid species were captured in the McMurdo Sound and Terra Nova Bay area including Pagothenia borchgrevinki, Trematomus pennellii, T. bernacchii, T. nicolai, T. hansoni, T.newnesi, T. eulepidotus, Gymnodraco acuticeps, Chionodraco hamatus and Lyodichthys dearborni.
Blood and tissue (heart, liver, spleen, red muscle, white muscle, kidney, intestine, brain, eye, gill and adipose) samples were harvested and frozen for analysis. Not all tissue types were taken from all fish species. Blood protein analyses were performed using electrophoresis and [14C] palmitic acid binding.
In addition, fish length, weights, gonadosomatic indices and parasite load were measured and sex was recorded and in some cases gonads were taken for histological analysis.
Links
Documentation and papers
- Investigators homepage lincoln-nz.academia.edu/VictoriaMetcalf ↗
documentation · from NASA CMR
Catalogue records · 2
- CMR record cmr.earthdata.nasa.gov/search/concepts/C1214590948-SCIOPS.html ↗
catalogue entry · from NASA CMR
- CMR UMM-JSON cmr.earthdata.nasa.gov/search/concepts/C1214590948-SCIOPS.umm_json ↗
metadata API · from NASA CMR
Topics
- Stated by source
- Animal Physiology And Biochemistry · Biodiversity Functions · Evolutionary Adaptation · FIELD SURVEYS · Fish · LABORATORY · Perch-Like Fishes
- Inferred from text
- Heart 75%
Provenance · 1 source records, 14 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| NASA Earthdata CMR | C1214590948-SCIOPS | 15 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[anatomy].local:anatomy:heart | enrichment · NASA CMR | keyword-concept-rules@1.0.0 | title+description (75%) |
| concepts[measured_variable].gcmd:earth-science/agriculture/animal-science/animal-physiology-and-biochemistry | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/biological-classification/animals-vertebrates/fish | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/biological-classification/animals-vertebrates/fish/ray-finned-fishes/perch-like-fishes | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/biosphere/ecological-dynamics/community-dynamics/biodiversity-functions | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[measured_variable].gcmd:earth-science/biosphere/ecological-dynamics/species-population-interactions/evolutionary-adaptation | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:field-surveys | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| concepts[platform].gcmd_platform:laboratory | source · NASA CMR | connector:nasa_cmr@1.0.0 | |
| description | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/Abstract |
| spatial | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/SpatialExtent |
| temporal | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/TemporalExtents |
| title | source · NASA CMR | connector:nasa_cmr@1.0.0 | /umm/EntryTitle |
| version_label | source · NASA CMR | connector:nasa_cmr@1.0.0 |