Search results
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Sensitivity analysis for parameters of predatory species CCAMLR Ecosystem Monitoring Program
monitoring continued in discussions of the Commission for the Conservation of Antarctic Marine Living ... the mean. While data sets can be simulated, and variances estimated if no real data exist, the use ... Secretariat and Convener ofCEMP. This report summarizes some preliminary data on various Adelie penguin ... (K-S); z=0.037, p=0.354 and z=0.071, p=0.239 for 1987 and 1988 respectively). The means and variances ... such a treatment of data obtained at the Magnetic Island Adélie penguin colony in Prydz Bay in the 1987 ... Program Abstract / Description: Following the request of the Scientific Committee of CCAMLR to conduct ... Paper Title: Sensitivity analysis for parameters of predatory species CCAMLR Ecosystem Monitoring ... /88 and 1988/89 breeding seasons. The data on the following parameters were analyzed: adult weight on ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 411–432 : Author(s): Whitehead, M.D.
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Second performance review – progress report
, that records the discussion and action considered in respect of each recommendation at each annual ... Abstract: At CCAMLR-XXXVI, the Commission decided (paragraph 9.34) that, in relation to future ... consider the PR2 recommendations, it requested: (i) the PR2 Report be placed in the public domain on the ... CCAMLR website with the understanding that the PR2 Report was received as the work of the Panel and was ...
Meeting Document : CCAMLR-XXXVII/11 : Author(s): CCAMLR Secretariat
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Net-based verification of acoustic techniques used to identify Antarctic krill
. Using the SDWBA model, dB difference identification ranges based on the length-frequencies of krill in ... frequency techniques. Such results indicate that use of the present SDWBA-derived ranges in the CCAMLR 3 ... during two cruises to the South Georgia region in 1996. For each net-sampled aggregation the differences ... of 2-16 dB and (iv) '2 freq 2-12'-with an Sv120-38 range of 2-12 dB The '3 freq model ...
Meeting Document : SG-ASAM-09/04 : Author(s): J. Watkins and S. Fielding (United Kingdom)
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Evaluation of some processing techniques applied to acoustic recordings from two krill fishing vessels
demonstrated through a CCAMLR proof of concept, but processing is in most cases essential before any use of the ... and during surveying. We have worked with datasets covering most of the fishing season 2015/2016, one ... the automatic noise removal techniques we had at hand. We also evaluated the use of delineation and ... integration of only detected swarms for assessment of abundance, and the results are promising both for swarm ...
Meeting Document : SG-ASAM-17/03 : Author(s): X. Wang, G. Skaret and O.R. Godø
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Trade data analysis – Annual report of global toothfish trade data
forms with mean unit values of 24.03 US$/kg for imports and 23.40 US$/kg for exports. The data ... with mean unit values of 24.03 US$/kg for imports and 23.40 US$/kg for exports. The data identified ...
Meeting Document : CCAMLR-38/BG/09 : Author(s): CCAMLR Secretariat
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Anthropogenic feather soiling, marine debris and fishing gear associated with seabirds at Bird Island, South Georgia, 2000/01
fishing gear associated with seabirds at Bird Island, South Georgia. In this, the eighth year of ... . Quantities of fishing gear remained within the levels of previous years for all other species. Marine debris ... , the vast majority of which was plastics, showed a 28% increase from the maximum of the previous year ... for grey-headed albatrosses, but a 24% decrease from the maximum of the previous year for wandering ...
Meeting Document : SC-CAMLR-XX/BG/07 : Author(s): Delegation of the United Kingdom
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Preliminary analysis of seabird by-catch using CCAMLR observer data
Dissostichus eleginoides and various factors, including the nature and use of mitigating measures as well as ... presence/absence of seabird catches and a Gamma model for the magnitude of non-zero catches. Sparsity of ... combined. Other analytical difficulties, particularly in using generalised linear models, related to the ... large number of potentially important factors, the lack of overlap between factors and the fact that ...
Meeting Document : WG-FSA-99/28 : Author(s): D.J. Agnew and J.P. Croxall (United Kingdom)
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An analysis of within-season recaptures of tagged toothfish
Abstract: In response to a request from WG-SAM, the secretariat inspected the available data on ... toothfish within-season recaptures (i.e. fish that have been tagged and recaptured in the same fishing ... season). Despite short times at liberty, the frequency distribution of distances between tag and ... recapture locations for these fish was similar to that of all recaptured fish. The relative frequency of ...
Meeting Document : WG-FSA-13/01 : Author(s): Secretariat
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Seabird identification – A photographic guide for observers at sea in Southern Indian Ocean
observers at sea in the correct identification of seabirds. It does this through providing several images ... Description / Abstract: This photographic guide has been developed with the aim of assisting ... for each species, at different stages and different angles both in the air and in the water. This ... project has been achieved thanks to French observers at sea working in Kerguelen and Crozet waters under ...
Document : Site Section: Science
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The SCAR Antarctic digital topographic database
collaborative project between 11 nations. Data capture was co-ordinated in the UK, under the auspices of the ... Abstract: The Antarctic digital topographic database is the outcome of a truly international ... number of satellite images (mostly Landsat photographic products). Editing and harmonization of the data ... derived from the different sources has produced a seamless map of Antarctica which has the most up-to-date ...
Meeting Document : SC-CAMLR-XII/BG/16 : Author(s): Delegation of United Kingdom