The nature of the diversity of Antarctic fishes

  title={The nature of the diversity of Antarctic fishes},
  author={Joseph T. Eastman},
  journal={Polar Biology},
  • J. Eastman
  • Published 2004
  • Environmental Science
  • Polar Biology
The species diversity of the Antarctic fish fauna changed notably during the ≈40 million years from the Eocene to the present. A taxonomically restricted and endemic modern fauna succeeded a taxonomically diverse and cosmopolitan Eocene fauna. Although the Southern Ocean is 10% of the world’s ocean, its current fish fauna consists of only 322 species, small considering the global diversity of ≈25,000–28,000 species. The fauna is “reasonably well-known” from a taxonomic perspective. This… 
Cryptic species diversity in sub-Antarctic islands: A case study of Lepidonotothen.
Evolution and biodiversity of Antarctic organisms: a molecular perspective
  • A. Rogers
  • Environmental Science, Biology
    Philosophical Transactions of the Royal Society B: Biological Sciences
  • 2007
Genetic studies have revealed that species defined by morphological characters are complexes of cryptic or sibling species, which is consistent with the diversity and distribution of marine and terrestrial taxa having been strongly influenced by geological and climatic cooling events over the last 70 years.
Species Radiations in the Sea: What the Flock?
Species flocks are proliferations of closely-related species, usually after colonization of depauperate habitat. These radiations are abundant on oceanic islands and in ancient freshwater lakes, but
Marine shelf habitat: biogeography and evolution
Although marine biogeographic provinces are characterized by endemism and thus demonstrate evolutionary innovation, dominant species appear to arise within smaller centres of high species diversity and maximum interspecies competition, and are part of a global system responsible for the maintenance of biodiversity over much of the marine world.
Conservation and management of Antarctic silverfish Pleuragramma Antarctica populations and habitats
One of the main conservation objectives for marine systems is to identify areas of ecological importance for biodiversity and essential species habitats which can be used as scientific reference
Spatial patterns of continental shelf faunal community structure along the Western Antarctic Peninsula
The WAP is among the fastest warming regions on Earth and mitigating the impacts of warming, along with more direct impacts such as those from fishing, is critical in providing opportunities for species to adapt to environmental change and to preserve this unique ecosystem.
Diversity of Mesopelagic Fishes in the Southern Ocean - A Phylogeographic Perspective Using DNA Barcoding
A dataset with previously unpublished cytochrome c oxidase I (COI) and rhodopsin gene sequences from specimens collected at various locations in the Southern Ocean is presented, providing a robust reference dataset for specimen identification, independently of incomplete morphological characters.
Molecular data support the existence of two species of the Antarctic fish genus Cryodraco (Channichthyidae)
The authors' analyses show that C. atkinsoni and C. antarcticus are recently diverged sister lineages, and the two species differ with regard to patterns of population structure.


Fishes on the Antarctic continental shelf : evolution of a marine species flock?
Notothenioids are one of the first recognized examples of a species flock of marine fishes and calculations made of the time required for speciation (TFS) for nototinioids of the family Channichthyidae are slower than for most lacustrine species flocks but similar to estimates for island radiations of birds and arthropods.
Antarctic notothenioid fishes as subjects for research in evolutionary biology
  • J. Eastman
  • Environmental Science
    Antarctic Science
  • 2000
The benthic fish fauna of the shelf and upper slope of the Antarctic Region includes 213 species with higher taxonomic diversity confined to 18 families, and notothenioids exhibit the disproportionate speciosity and high endemism characteristic of fish species flock.
A comparison of adaptive radiations of Antarctic fish with those of nonAntarctic fish
The case is made that, unlike other marine habitats, the Antarctic Region fulfills most of the essential parameters of lakes containing radiations of fish and that this large component of the world ocean is equivalent to a closed basin, therefore in spite of its vastness, the Antarctica Region provides a comparable opportunity for studying evolutionary biology within a confined area.
Antarctic marine benthic diversity
Comparisons with tropical and temperate regions suggest that decapods, bivalves and teleost fishes are poorly represented in the Southern Ocean benthic marine fauna, whereas pycnogonids, echinoderms and many suspension feeding groups are rich and diverse.
A General Review of the Antarctic Fish Fauna
Several years ago, while engaged in a study of the fish fauna of the Arctic Seas, I often wanted to make a comparison with the fauna of the far South which, together with a striking development of
The fish fauna of the Ross Sea , Antarctica
The RV Nathaniel B. Palmer was used for bottom trawling at depths of 100-1200 m during two recent cruises in the south-western Ross Sea. Although only 10 of 20 trawls were completely successful, a
The role of notothenioid fish in the food web of the Ross Sea shelf waters: a review
The Ross Sea, a large, high-latitude (72–78°S) embayment of the Antarctic continental shelf, averages 500 m deep, with troughs to 1,200 m and the shelf break at 700 m, and the food web is non-linear, with complex prey-predator interactions.
On the origin and evolution of Antarctic Peracarida (Crustacea, Malacostraca)*
This analysis demonstrates that the origin of the Antarctic fauna probably has different roots: an adaptive radiation of descendants from old Gondwanian ancestors was hypothesized for the isopod families Serolidae and Arcturidae, an evolution and radiation of phylogenetically old taxa in Antarctica could also be shown for the Ostracoda and the amphipod family Iphimediidae.
Some 20th century fish discoveries
  • T. Berra
  • Environmental Science, Biology
    Environmental Biology of Fishes
  • 2004
Three species are discussed in detail to represent remarkable examples of 20th century fish discoveries: the coelacanth Latimeria chalumnae, the salamanderfish Lepidogalaxias salamandroides of Western Australia, and the megamouth shark Megachasma pelagios.
Evolution and adaptive radiation of antarctic fishes.