Resultados de la búsqueda
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Short note: time series of Drake Passage Oscillation Index (DPOI) from 1952 to 1988
Abstract: Naganobu et al. (1999) had assessed variability in krill recruitment and density with ... differences across the Drake Passage, sea ice cover and chlorophyll-a in the Antarctic Peninsula area during ... westerlies were especially regarded as a key environmental index. Fluctuations in the westerlies across the ... since the 1940s until 1998 at British Antarctic Survey for Esperanza. Here we calculated a time series ...
Meeting Document : WG-EMM-02/44 : Autor(es): M. Naganobu and K. Kutsuwada (Japan)
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Tests for anomalous years in the CCAMLR index series (draft)
Abstract: The properties of a method for detecting anomalous years in CCAMLR index series are ... discussed. In simple cases this method involves comparing a standardized residual with a critical value ... obtained on the assumption that the series being considered consists of random values from a constant ... normal distribution. This idea is extended to situations (a) where the series values are still normally ...
Meeting Document : WG-EMM-Stats-97/06 : Autor(es): MacKenzie, D., Manly, B.F.
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Results of the third CCAMLR sponsored research survey to monitor abundance of subadult Antarctic toothfish in the southern Ross Sea, February 2014 and development of the time series
Abstract: At its 2011 meeting, the Scientific Committee agreed that a time series of relative ... abundance from a well-designed survey could be a useful input into the Ross Sea stock assessment model. The ... carry out a longline survey to monitor subadult toothfish in the southern Ross Sea (strata A–C) using ... standardised gear in a standardised manner; and (2) To sample additional experimental stations in an adjacent ...
Meeting Document : WG-FSA-14/51 : Autor(es): S. Mormede, S.J. Parker, S.M. Hanchet, A. Dunn (New Zealand) and S. Gregory (United Kingdom)
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Results of the fourth CCAMLR sponsored research survey to monitor abundance of sub-adult Antarctic toothfish in the southern Ross Sea, February 2015 and further development of the time series
Abstract: At its 2011 meeting, the Scientific Committee agreed that a time series of relative ... abundance from a well-designed survey could be a useful input into the Ross Sea stock assessment model. The ... the fourth survey in the time series. The objectives of this survey were: (1) To carry out a longline ... survey to monitor sub-adult toothfish in the southern Ross Sea (strata A–C) using standardised gear in a ...
Meeting Document : WG-SAM-15/44 : Autor(es): S.M. Hanchet, B.R. Sharp, S. Mormede, S.J. Parker (New Zealand) and M. Vacchi (Italy)
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Proposal to continue the time series of CCAMLR-sponsored research surveys to monitor abundance of subadult Antarctic toothfish in the southern Ross Sea in 2014
Abstract: A research proposal to continue the southern Ross Sea subadult toothfish survey is ... presented. The survey will focus on estimating relative abundance in the core strata (A, B, C) in SSRUs 88.1 ... J and 88.1L, and will conduct exploratory sets in a newly defined stratum I in southern SSRU 88.1 M ... proposed to be reduced by 5 sets to a total of 60 sets. Author(s): S.J. Parker, S.M. Hanchet, S. Mormede ...
Meeting Document : WG-SAM-13/33 : Autor(es): S.J. Parker, S.M. Hanchet, S. Mormede and A. Dunn (New Zealand)
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Proposal to continue the time series of CCAMLR-sponsored research surveys to monitor abundance of subadult Antarctic toothfish in the southern Ross Sea in 2015
Abstract: A research proposal to continue the southern Ross Sea subadult toothfish survey is ... presented. The survey will focus on estimating relative abundance in the core strata (A, B, C) in SSRUs 88.1 ... J and 88.1L. It will also carry out 15 exploratory sets in a newly defined stratum K in Terra Nova ... be retained at a total of 60 sets. A nominal catch limit of 68 tonnes, to be taken from the shelf ...
Meeting Document : WG-SAM-14/25 : Autor(es): S.M. Hanchet, S.J. Parker and S. Mormede (New Zealand)
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Reassessment of important population parameters for Dissostichus eleginoides on the Heard Island Plateau (Division 58.5.2) based on time series of surveys and fishery data
Abstract: A large body of data and techniques are available for re-assessing the biological ... parameters and recruitment of Patagonian toothfish, Dissostichus eleginoides, in the Heard Island region. A ... a more accurate reassessment of the recruitment time series, which was likely to have been over ... , the overall analysis shows a promising way forward in understanding the dynamics of D. eleginoides in ...
Meeting Document : WG-FSA-01/73 : Autor(es): A.J. Constable, R. Williams, T. Lamb, I.R. Ball and E. van Wijk (Australia)
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Revised proposal to continue the time series of research surveys to monitor abundance of Antarctic toothfish in the southern Ross Sea, 2016 and 2017
Abstract: A research proposal to continue the southern Ross Sea sub-adult toothfish survey for ... estimating the relative abundance of sub-adult (<110 cm TL) toothfish in the core strata (A, B, C) in ... SSRUs 88.1J and 88.1L so as to provide a time series of recruitment of toothfish. This is a continuation ... . A nominal catch limit of 40 tonnes is requested for each survey. It is envisaged that the results of ...
Meeting Document : WG-FSA-15/34 : Autor(es): S.M. Hanchet, S.J. Parker, S. Mormede and R.J.C. Currey (New Zealand)
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CALIBRATION ERROR IN THE AMLR PLANKTON TIME SERIES
Abstract: Analysis of the time series of the volume of water filtered during tows using a 1.8 m ... Isaac-Kidd Midwater Trawl (IKMT) from 1992 to 2007 showed a marked decline (~35%) in the volume of water ... traced to a simple arithmetic error in the calculation of the mouth area of the net. Since 2000, the net ... flow constant. Thus, since 2000, the abundance of all zooplankton taxa have experienced a false ...
Meeting Document : WG-EMM-08/19 : Autor(es): C. Reiss (USA)
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Extending the time series of catch-weighted length frequencies
from 1993/94 because of a mismatch in Flag State which presently occurs between the length and catch ... data. A new procedure was developed which can use the mismatched data. In addition, historic data from ... from the 2005/06 season will be added as soon as submitted. A comparison between the standard procedure ... an overlap of seasons. However there is a systematic difference in the overall number of fish ...
Meeting Document : WG-FSA-SAM-06/04 : Autor(es): David Ramm & Lydia Millar