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Antarctic krill (Euphausia superba Dana) is a key species of the Southern Ocean ecosystem, immensely abundant and targeted by the krill fishery. For their sustainable management, krill distribution and biomass estimates are required, typically achieved through acoustic-trawl surveys.
Antarctic krill are a fundamental component of Southern Ocean ecosystems and perturbations to krill populations have ramifications for the entire ecosystem. Krill are fished across the Southern Ocean and sustainable management of this fishery is a high priority for the Australian Government.
Recommendations … We recommend the catch limits in Conservation Measure 42-02 be set at 1528 t in the 2021/22 season and 1138 t in the 2022/23 season. Abstract … The annual random stratified trawl survey was undertaken in Division 58.5.
Antarctic polynyas are persistent open water areas which enable early and large seasonal phytoplankton blooms. This high primary productivity, boosted by iron supply from coastal glaciers, attracts organisms from all trophic levels to form a rich and diverse community.
Introduction: v … 1. The annual meeting of the SCAR Krill Action Group (SKAG) was held online from 7 to 11 March 2022 at 1500-1700 UTC, with a series of Zoom meetings. 2.
Background … Satellite tags were deployed on two Antarctic blue whales (Balaenoptera musculus intermedia) in the east Antarctic sector of the Southern Ocean as part of the International Whaling Commission’s Southern Ocean Research Partnership initiative.
A large collection of ascidians was made during the CEAMARC Aurora Australis V3 cruise off Terre Adélie and George V … Land a region rarely investigated before at these depths. Sampling was performed by beam trawls and a dredge between 138°– 146° latitude East and from 150 to 1700 m depth…
Over a decade of site testing in Antarctica has shown that both South Pole and Dome C are exceptional sites for … astronomy, with certain atmospheric conditions superior to those at existing mid-latitude sites. However, the highest … point on the Antarctic plateau, Dome A…
Pre-HEAT is a 20 cm aperture submillimeter-wave telescope with a 660 GHz (450 micron) Schottky diode heterodyne … receiver and digital FFT spectrometer for the Plateau Observatory (PLATO) developed by the University of New South … Wales. In January 2008 it was deployed to Dome A…
We report a long-term study of offspring sex … ratios in the cooperatively breeding superb fairy-wren … Malurus cyaneus. Detailed study of this species had … revealed a suite of potentially strong selection pressures … on the sex ratio. First…
Antarctica remains one of the last bastions of exploratory limnology. Lakes in many regions … remain completely unknown, in part because of their often cryptic nature. Of particular interest … is whether the biological communities present in these isolated lakes consist of recent (postglacial)…
Subantarctic islands contain some of the most remote and least disturbed wilderness regions of the world. Despite best efforts at conservation…
We combine ERS-1 satellite radar altimeter surface elevations (Fricker and others, this issue) with six different accumulation distributions to compute balance fluxes for the Lambert Glacier-Amery Ice Shelf Drainage system.
The extent of genetic variation and dispersal mechanisms were investigated over short distances of 1 – 100 m and up to 3 km, by the RAPD technique, for the moss Sarconeurum glaciale at three locations on Ross Island, Antarctica. At Arrival Heights, genetic variation occurred within single colonies…