Search results
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Plan of research program of the Russian Federation in Subarea 48.5
Scientific Committee that data-poor area in the future would need to be consistent with the original research ... research program in the Weddell Sea (WG-FSA-12/12) with minor revisions that reflect the current situation ... Subareas. Stock assessment of this area should be calculated basing on the newest and adequate data ... current system. Such similarity gives hope that the Weddell Sea could become one of the most promising ...
Meeting Document : WG-SAM-15/18 : Author(s): Delegation of the Russian Federation
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Characterisation of the Antarctic polar frontal zone to the north of South Georgia in summer 1994
to be consistent with the physical observations. A second examination of the region after a period of ... PF (and thus the PFZ) is known to be influenced by topographic steering, while local bathymetry has ... first. Associated with the PF was a narrow, high-speed flow embedded in broader, slower moving regions ... . This high-speed flow was found to have a geostrophic component of velocity that was slower than ...
Meeting Document : WG-EMM-97/40 : Author(s): Brandon, M.A., Trathan, P.N., Murphy, E.J.
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Further development of coarse- and medium-scale spatially explicit population dynamics operating models for Antarctic toothfish in the Ross Sea region
sensible, with a clear pattern that the proportions mature were a function of location and age. Tag release ... and medium-scale spatial resolution and consider scenarios where abundance can be present over the ... program allows implementation of an aggregate movement model for use with large numbers of areas as a ... discrete time-step state-space model that represents a cohort-based population age structure in a spatially ...
Meeting Document : WG-FSA-12/44 : Author(s): S. Mormede, A. Dunn, S. Parker and S. Hanchet (New Zealand)
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Adult male Antarctic fur seals: tourists, trouble makers or marine ecosystem sentinels?
when effort is at is maximum at the South Orkney Islands. We recommend that this overlap should be ... considered in understanding the functional response of penguins and suggest that male AFS could be a useful ... Abstract: Resource competition often results in mechanisms that ameliorate its effects, typically ... spatial and temporal overlap between predators that exploit the same resource then is fundamental to ...
Meeting Document : WG-EMM-2019/49 : Author(s): A. Lowther, C. Lydersen and K. Kovacs
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Using predators and their prey to characterise the status of the marine ecosystem at South Georgia
, coupled with data that describe the density of their principal prey, Antarctic krill. Here we explore some ... of the longest time series of such data yet available, using records that were closely matched with ... status of marine predators might be used to inform ecosystem-based management approaches. In the ... consistent ecological time periods. Our results show that: (i) at the larger scale, some predator variables ...
Meeting Document : WG-EMM-16/28 : Author(s): P. Trathan, S. Fielding, S. Hill, M. Belchier and J. Forcada
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Distribution, morphology, growth, reproduction, diet and trophic position of two species of grenadier (Macrourus whitsoni and M. caml) in the Ross Sea region of the Southern Ocean (CCAMLR Subareas 88.1 and 88.2)
scale, Macrourus whitsoni and M. caml seem to be almost completely sympatric by depth and area, with ... either species. Gonad staging data imply that the spawning period of both species may be extended ... of the two species of 94% overall. We found that total length (TL) was no less precise a measurement ... both appearing to be abundant between depths of 900 and 1900 m. There was a small but significant ...
Meeting Document : WG-FSA-12/54 Rev. 1 : Author(s): M.H. Pinkerton, P. McMillan, J. Forman, P. Marriott, P. Horn, S. Bury and J. Brown (New Zealand)
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The applicability of international conservation instruments to the establishment of marine protected areas in Antarctica
that have relevance to marine protected area (MPA) development provide for action to be taken globally ... with global work to develop high seas protected areas should be undertaken to achieve the goal of a ... , depending on their specific provisions, full application in Antarctic waters may be difficult, inappropriate ... concluded that although direct application of other international conservation agreements is in most cases ...
Meeting Document : WG-EMM-04/32 : Author(s): S. Grant (United Kingdom)
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Principles for evaluating data collection plans in data-poor exploratory fisheries
Abstract: Since 1992, CCAMLR has agreed that exploratory fishing is not to be allowed to expand ... faster than the acquisition of information necessary to ensure that the fishery can and will be conducted ... in accordance with the principles set forth in Article II of the Convention. However, several times ... over the last five years the Scientific Committee has noted with concern the lack of progress in ...
Meeting Document : WG-SAM-11/08 : Author(s): P.E. Ziegler, D.C. Welsford and A.J. Constable (Australia)
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SEASONAL ESTIMATION OF ABUNDANCE BY BOOTSTRAPPING INEXACT RESEARCH DATA (SEABIRD): A METHOD FOR ASSESSING ABUNDANCE AND UNCERTAINTY FROM HISTORICAL COUNT DATA USING ADELIE PENGUINS AS A CASE STUDY
in the R language for statistical computing (R Development Core Team 2008). Software is reliant on data being ... computing (R Development Core Team 2008). Software is reliant on data being presented in a specified format ...
Meeting Document : WG-EMM-PSW-08/11 : Author(s): J.P. McKinlay and C.J. Southwell (Australia)
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Antarctic krill and climate change
particular, it was concluded that current precautionary management measures need to be maintained, until ... Abstract: During April 2011, a multi-national group of scientists with expertise on Antarctic ... ocean warming, sea ice loss, and ocean acidification. It was concluded that the cumulative impact of ... climate change on krill is probably negative. To be able to account for climate change-induced ...
Meeting Document : SC-CAMLR-XXX/BG/03 : Author(s): Delegation of the European Union