Resultados de la búsqueda
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The importance of sea ice association of Antarctic krill for transport and retention in the South Orkneys region: a modelling study
Abstract: The South Orkney Islands region is a key location for understanding the distribution of ... Antarctic krill in CCAMLR Area 48. The local krill populations support krill-dependent higher predators and ... krill fisheries, and the regional oceanographic circulation provides connections between the Antarctic ... Peninsula, the South Orkney Islands and the central Scotia Sea and South Georgia. Furthermore, the South ...
Meeting Document : WG-EMM-2019/21 : Autor(es): S.E. Thorpe, E.F. Young, E.J. Murphy and A.H.H. Renner
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On the problem of diurnal migrations of some fish species on the South Georgia shelf (Subarea 48.3)
sunset) they ascended into the water column where they were found in the superficial layer. No ... Abstract: The results of experiments on the South Georgia Shelf carried out in the period of 1986 ... . The most representative data were obtained for Ch.gunnari and N.larseni. The vertical migration trend ... was the most distinctive in Ch.gunnari fry. The individuals used to ascend towards the water column ...
Meeting Document : WG-FSA-99/64 : Autor(es): I.A. Trunov, J.A. Frolkina and M.P. Konstantinova (Russia)
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Report on fishing effort and seabird interactions during the season extension trials in the longline fishery for Patagonian toothfish (Dissostichus eleginoides) in Statistical Division 58.5.2
Abstract: Minimising seabird interactions with longline operations is a key objective of the ... management of fisheries in CCAMLR (see e.g. Conservation Measure CM 25-02 and 41-08). Longline fishing in the ... seabird mitigation measures since the initial fishing season in 2003. Over the years, CCAMLR has agreed to ... add season extensions from 15-30 April and 15 September- 31 October to the core season. In 2015 ...
Meeting Document : WG-FSA-2019/31 : Autor(es): P. Ziegler, T. Lamb, S. Wotherspoon and J. Dell
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Proposal for a skate tagging program in the Ross Sea region to estimate the local biomass trend for starry skates (Amblyraja georgiana)
for skates in the Ross Sea region, we summarise skate catch and mark-recapture data through the 2016 ... annually). Catch data show that most of the skate catch consists of Amblyraja georgiana and that this ... species is the only one with enough mark-recapture data to examine movement patterns and estimate local ... biomass. Much of the A. georgiana catch occurs in SSRUs 88.1H and 88.1I in an area remaining open to ...
Meeting Document : WG-FSA-18/38 Rev. 1 : Autor(es): S. Parker and M. Francis
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Increasing abundance of Type A killer whales (Orcinus orca) in the coastal waters around the Antarctic Peninsula
(Orcinus orca; Types B1, B2 and A) are important top predators around the AP, but there are currently no ... to 3048 km from tagging site). Photographic re-sightings of the same whales were common across years ... Abstract: The physical marine environment around the Antarctic Peninsula (AP) is rapidly changing ... and we need to understand the impact on marine ecosystems. A diverse community of killer whales ...
Meeting Document : WG-EMM-17/49 : Autor(es): H. Fearnbach, J.W. Durban, D.K. Ellifrit and R.L. Pitman
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Estimates of abundance of Dissostichus eleginoides and Champsocephalus gunnari from the random stratified trawl survey in the waters surrounding Heard Island in Division 58.5.2 for 2019
Abstract: 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. Sampling protocols such as the ... design and the duration of the hauls were similar to recent surveys, but with a new set of randomly ...
Meeting Document : WG-FSA-2019/03 : Autor(es): G.B. Nowara, T.D. Lamb and P. Ziegler
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Adélie penguin population change in the pacific sector of Antarctica: relation to sea-ice extent and the Antarctic Circumpolar Current
virtually no correlations to the western half (150° E to 175° W). This result supported other indirect ... Abstract: One of the longest continuing data sets involving a marine organism in the Antarctic is ... on Ross Island, Ross Sea, 1959 to 1997. The sizes of these colonies have displayed significant ... interannual variability during the 29-yr period. We hypothesized that changes are related to natural ...
Meeting Document : WG-EMM-01/23 : Autor(es): P.R. Wilson (New Zealand), D.G. Ainley, N. Nur, S.S. Jacobs (USA), K.J. Barton (New Zealand), G. Ballard and J.C. Comiso (USA)
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Distribution and possible areas of spatial mixing of two stocks of humpback whales, a krill predator, in the Indo-Pacific region of the Antarctic revealed by genetic analyses
Abstract: The main purpose of this study was to investigate the distribution and areas of mixing ... of two stocks of the humpback whale, a krill predator, in the Indo-Pacific region of the Antarctic ... stocks have shown sign of recovery after heavy commercial exploitation in the last century. Information ... on distribution and areas of mixing in the Antarctic feeding grounds is essential to assist the ...
Meeting Document : WG-EMM-2019/67 : Autor(es): L.A. Pastene, M. Goto, M. Taguchi and K. Matsuoka
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Comparison between the CCAMLR-2000 and KY 1988 surveys on environmental variability of krill in the Scotia Sea, Antarctica
ice cover in 1999/2000 reduced southward such that no sea ice remained around the South Orkney Islands ... Abstract: We assessed the environmental variability of Antarctic krill (Euphausia superba ... ) distribution with comparison between the CCAMLR 2000 Survey and similar scale datasets partially by the ... Japanese R/V Kaiyo Maru Survey in the 1987/88 austral summer season in the Scotia Sea. There were distinct ...
Meeting Document : WG-EMM-02/43 : Autor(es): M. Naganobu (Japan), M. Brandon (United Kingdom), K. Ito, K. Segawa (Japan) and V. Siegel (Germany)
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Preliminary assessment of the exploratory fishery for Dissostichus spp. on BANZARE Bank (Division 58.4.3b), based on the analysis of fine-scale catch and effort data
Patagonian toothfish dominating in catches in one ground for the first time, and some observers reporting no ... Abstract: In 2006 the CCAMLR scientific committee noted several features of exploratory ... Dissostichus fisheries in the southern Indian Ocean (58.4) which gave cause for concern as to the status of the ... resource in this area, and the lack of a scientific basis for setting catch limits in these areas (SC-CAMLR ...
Meeting Document : WG-FSA-07/44 : Autor(es): J.P. McKinlay, D.C. Welsford, A.J. Constable and G.B. Nowara (Australia)