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Antarctic landfast sea ice is an integral component of coastal and nearshore ecosystems, providing bottom-ice habitats that harbour some of the most productive marine microalgal communities on Earth. Ice algal biomass is driven by the spatio-temporal dynamics of snow and sea-ice covers…
The grey rockcod, Lepidonotothen squamifrons is an important prey species for seals, penguins and Patagonian toothfish (Dissostichus eleginoides) in the Southern Ocean. Across the Kerguelen Plateau, the species was fished to commercial extinction (ca. 152 000 tonnes between 1971 and 1978)…
The Advisory Committee Work Programme for the 2023 - 2025 triennium was drafted by the Advisory Committee and its Working Groups during its Twelfth Meeting (AC12), held as a virtual meeting, between 31 August and 2 September 2021.
This report has been prepared under Article IX(6)(d) of the Agreement and includes a collation of information provided under Article X(j) by Parties through the Secretariat under Article VII(1)(c) and Article VIII(10).
During late March to early April 2019, the annual random stratified trawl survey (RSTS) around Heard Island and McDonald Islands (HIMI) was conducted in CCAMLR Division 58.5.2, with the completion of 150 stations. The survey was conducted on the FV Atlas Cove.
During late March to mid-April 2020, the annual random stratified trawl survey (RSTS) around Heard Island and McDonald Islands (HIMI) was conducted in CCAMLR Division 58.5.2, with the completion of 151 stations. The survey was conducted on the FV Atlas Cove.
During late March to mid-April 2021, the annual random stratified trawl survey (RSTS) around Heard Island and McDonald Islands (HIMI) was conducted in CCAMLR Division 58.5.2, with the completion of 163 stations. The survey was conducted for the first time on the Cape Arkona.
The Diego Ramírez Archipelago, Chile, is the southernmost albatross breeding ground in the world and holds … globally important numbers of Black-browed (Thalassarche melanophrys) and Grey-headed (T. chrysostoma) Albatrosses. A census in the Diego Ramírez Archipelago has been attempted only once…
This study was the first to use high-resolution IKONOS imagery to classify vegetation communities on … sub-Antarctic Heard Island. We focused on the use of texture measures, in addition to standard … multispectral information, to improve the classification of sub-Antarctic vegetation communities.
1. Although marine protected areas (MPAs) are often established to protect threatened top-order … predators, there is a paucity of data that can be used to evaluate their efficacy in achieving this … purpose. 2.
Line-transect distance sampling is a widely used method for estimating animal density from aerial surveys. Analysis of line-transect distance data usually relies on a requirement that the statistical distribution of distances of animal … groups from the transect line is uniform.
1. Estimates of penguin abundance are important for developing marine ecosystem models and … assessing potential competition between penguins and fisheries operations. 2. Most shipboard surveys of penguins use strip transect (ST) or conventional distance sampling … (CDS)…
Long-term studies at Bird Island, South … Georgia, show that numbers of wandering, black-browed … and grey-headed albatrosses have been decreasing … since the late 1970s. To determine the status of the total … South Georgia population…
Long-term studies at Bird Island, South … Georgia, show that numbers of wandering, black-browed … and grey-headed albatrosses have been decreasing … since the late 1970s. To determine the status of the total … South Georgia population…
The diet of grey-headed albatrosses at Diego Ramírez was analysed and compared to that of the … sympatric black-browed albatross. Diet composition was inferred from an analysis of prey hard parts present … in 103 chick regurgitates obtained during breeding seasons 2000, 2001 and 2002.
South Georgia (540S; 380W) lies 350 km south of the Polar Front in the south-west Atlantic Ocean. It is a key global location for albatrosses: at the last all-island census in 1986, it was estimated that approximately 92,500 pairs of grey-headed albatrosses (most important global site), 101…
Black-browed and grey-headed albatrosses breed at four known locations in Chile: Islas Diego de Almagro, Islote Evangelistas, Islas Ildefonso and Islas Diego Ramirez.
The most difficult seabirds in the world to deter from baited hooks are white-chinned petrels, grey petrels and the shearwaters. A fundamental principle of seabird-friendly longlines is that they commence sinking immediately upon deployment and sink fast. Longlines with integrated weight…