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Operational interactions between cetaceans and the Patagonian toothfish (Dissostichus eleginoides) industrial fishery off Southern Chile
100%. Considering that in 153 (84%) of the effectively monitored sets no interaction whatsoever was ... Abstract: Operational interactions between marine mammals and the Patagonian toothfish ... recorded and that the mode and median of the predation rate was 0, the global impact of cetaceans over the ... =12) the rate of predation decreased to 0%. Upon detecting orca presence, sperm whales modified their ...
Meeting Document : WG-FSA-03/95 : Автор(ы): R. Hucke-Gaete, C.A. Moreno and J.A. Arata (Chile)
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RECENT TRENDS IN NUMBERS OF FOUR SPECIES OF PENGUINS AT THE PRINCE EDWARD ISLANDS
pairs of king penguins were incubating eggs at Marion Island, the larger of the two islands in the group ... , and 2000 pairs at Prince Edward Island. At Marion Island from 1987–2008, there was no long-term trend ... in numbers of king penguin chicks that survived to the end of the winter period, but there was ... considerable fluctuation in chick production in the 1990s. It was roughly estimated that on average 88% of king ...
Meeting Document : WG-EMM-10/P1 : Автор(ы): R.J.M. Crawford, P.A. Whittington, L. Upfold, P.G. Ryan, S.L. Petersen, B.M. Dyer and J. Cooper
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Slow recovery of previously depleted demersal fish at the South Shetland Islands, 1983–2010
period showed no change in modal size or mean length of the fish. We relate these patterns to the fishery ... Abstract: Following seals and baleen whales prior to the 1970s, demersal fish stocks were ... depleted off the South Shetland Islands by intensive industrial fishing during the late 1970s to early ... closed this fishery in 1990. We report changes in size and abundance of the commercially exploited ...
Meeting Document : WG-FSA-12/P01 : Автор(ы): E.R. Marschoff, E.R. Barrera-Oro, N.S. Alescio and D.G. Ainley
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Analysis of seamount-specific catch and tagging data in the Amundsen Sea, SSRU 88.2H
areas. These metrics were also calculated for SSRU 88.2H as a whole. The analyses indicate that: Fish ... seldom move among seamounts within the complex, and residence time on particular seamounts is typically 1 ... -2 years before fish depart from these seamounts, presumably back to the slope SSRUs. Therefore, it ... is recommended that the stock assessment include only recaptures of tagged fish that have been at ...
Meeting Document : WG-SAM-14/27 : Автор(ы): S.J. Parker (New Zealand)
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Research results from the SPRFMO exploratory fishing program for Antarctic toothfish 2016 and 2017
Abstract: The New Zealand vessel San Aspiring carried out an exploratory research program for ... toothfish in the South Pacific Regional Fisheries Management Organisation (SPRFMO) Convention Area during ... August 2016 (Fenaughty et al. 2016) and September 2017. Analysis of the information collected showed high ... catch rates of post-spawning Antarctic toothfish, similar in magnitude to catch rates in the north ...
Meeting Document : WG-FSA-18/39 : Автор(ы): J.M. Fenaughty, M. Cryer and A. Dunn
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Proposal for multi-Member research on the Dissostichus mawsoni exploratory fishery in East Antarctica (Divisions 58.4.1 and 58.4.2) from 2018/19 to 2021/22
rules remain to be determined for these Divisions. WG-FSA-16/29 outlined the first multi-member ... toothfish exploratory fishery research plan up to 2017/18 for East Antarctica, which the Scientific ... Committee agreed was appropriate to achieve the research objectives (SC-CAMLR-XXXV, para. 3.244). Subsequent ... to the identification of vulnerable marine ecosystem (VME) indicator species (Maschette et al. 2017 ...
Meeting Document : WG-FSA-18/59 : Автор(ы): Delegations of Australia, France, Japan, Republic of Korea and Spain
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Continuation of multi-Member research on the Dissostichus mawsoni exploratory fishery in East Antarctica (Divisions 58.4.1 and 58.4.2) from 2018/19 to 2021/22
rules remain to be determined for these Divisions. WG-FSA-16/29 outlined the first multi-member ... toothfish exploratory fishery research plan up to 2017/18 for East Antarctica, which the Scientific ... Committee agreed was appropriate to achieve the research objectives (SC-CAMLR 2016, para. 3.244). Subsequent ... research progress including the evaluation of standard approaches to identify precautionary catch limits ...
Meeting Document : WG-SAM-2019/05 : Автор(ы): Delegations of Australia, France, Japan, Republic of Korea and Spain
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Change in environmental conditions of the Southern Ocean observed by satellites and data-assimilating models between 1981 and 2019
Abstract: We provide a summary of environmental change in the Southern Ocean over the period of ... satellite observaton (1981 to present). The environmental data we consider are: (1) chlorophyll-a ... ) from the AVHRR series of NOAA satellites (1981–2019); (3) spatial gradient of SST (as an indicator of ... ocean fronts) from the same AVHRR observations; (4) sea ice concentration from microwave satellite ...
Meeting Document : WG-EMM-2019/39 : Автор(ы): M. Pinkerton
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Simulations to evaluate model performance for Antarctic toothfish stock assessment in the Amundsen Sea region
increasing the tagging rate in the South would result in an increase in bias but no improvement in the ... Abstract: The Amundsen Sea region (ASR) is currently managed under a research plan, which has ... shown promising results to date, with 8 interseason tags recaptured in the South area in 2016 and 12 ... (preliminary recaptures) in 2017. The aim of this paper is to ascertain when the Amundsen Sea region stock ...
Meeting Document : WG-SAM-17/40 : Автор(ы): S. Mormede and S. Parker
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A spatial multi-species operating model (SMOM) of krill–predator interactions in small-scale management units in the Scotia Sea
is essentially no upper limit on the number of predator species which can be included. Given the ... Abstract: A Spatial Multi-species Operating Model (SMOM) of the underlying krill-predator-fishery ... dynamics is developed in response to requests for scientific advice regarding the subdivision of the ... precautionary catch limit for krill among 15 small-scale management units (SSMUs) in the Scotia Sea to reduce ...
Meeting Document : WG-EMM-06/12 : Автор(ы): É. Plagányi and D. Butterworth (South Africa)
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