Résultats de la recherche
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Sources of variability associated with Adélie penguin CEMP parameters measured at Béchervaise Island, East Antarctica
Abstract: We examine the magnitude of a variety of sources of variability associated with CEMP ... parameters. The CEMP parameters considered in this paper include: A3: breeding population size, A1: arrival ... parameters at around 5-7% CV. The smallest source of variability was associated with measurement error ... although this source of variability is difficult to assess. The largest source of variability was related ...
Meeting Document : WG-EMM-03/48 : Auteur(s): L.M. Emmerson, C. Southwell, J. Clarke and K. Kerry (Australia)
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Manual for age determination of Antarctic toothfish, Dissostichus mawsoni V2
for CCAMLR in 2010. The manual has been updated to include the development and use of a reference set ... reader drift. In addition, standardized analysis and data reporting are recommended to allow the ... evaluation of D. mawsoni aging data for use in stock assessment. Author(s): C.P. Sutton, P.L. Horn and S.J ... . Parker (New Zealand) (The R Library file is available from the Secretariat on request) Title: Manual for ...
Meeting Document : WG-FSA-12/43 Rev. 1 : Auteur(s): C.P. Sutton, P.L. Horn and S.J. Parker (New Zealand) (The R Library file is available from the Secretariat on request)
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Studies of seabirds and seals at Bouvetøya 1998/99
and pup production of fur seals. The following CEMP-parameters were studied in Chinstrap Penguin and ... . The main objective for the 1998/99 expedition was to continue the CEMP-monitoring work initiated in ... (Eudyptes chrysolophus) and Antarctic Fur Seal (Arctocephalus gazella). In addition to the CEMP-work, other ... Antarctic Fur Seal, data were collected on the duration of adult female foraging/attendance cycles (C1) and ...
Meeting Document : WG-EMM-00/13 : Auteur(s): K. Isaksen (Norway), O. Huyser, S. Kirkman, R. Wanless and W. Wilson (South Africa)
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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 : Auteur(s): X. Wang, G. Skaret and O.R. Godø
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CEMP indices 2004: analysis of anomalies and trends
species and the environment collected by standard methods within the three Integrated Study Regions of the ... Convention Area. Each year the Secretariat updates the standardised index values and provides a summary of ... trends and anomalies in these data. In addition, developments during the intersessional period are ... Abstract: The CCAMLR Ecosystem Monitoring Program uses indices derived from data on indicator ...
Meeting Document : WG-EMM-04/14 : Auteur(s): Secretariat
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Potential effects of UV-B on krill – experimental and genetic studies
animals in the dark survived. Addition of ultraviolet-B typical of depths up to 15 m were found to ... Abstract: We irradiated captive juvenile Euphausia superba in the laboratory with lower than ... spring surface levels of ultraviolet-B, ultraviolet-A and photosynthetically active radiation, in order ... to examine their response in terms of mortality and generalised activity. Levels of ...
Meeting Document : WG-EMM-99/24 : Auteur(s): S. Newman, S. Jarman, S. Nicol, D. Ritz, H. Marchant, N. Elliot and A. McMinn (Australia)
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Register of non-CEMP time-series data
time series data that were of utility in support of the work of WG-EMM, including datasets derived from ... Abstract: The Secretariat was tasked with maintaining a register of the wide range of non-CEMP ... South African and French seabird and pinniped monitoring programs in the southern Indian Ocean (SC-CAMLR ... -XXII, Annex 4, paragraph 2.10). Non-CEMP data of interest are listed in Tables 1-3. Author(s ...
Meeting Document : WG-EMM-04/9 : Auteur(s): Secretariat
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An overview of tagging skates (Rajiformes) and CCAMLR skate tagging data
of the tagging work undertaken under the auspices of CCAMLR in the Southern Ocean with comments on ... taxonomic and identification problems, this makes the tagging studies undertaken in CCAMLR area a ... conducted in the CCAMLR area for several years now, only preliminary observations have been presented to ... tag loss and tag shedding rates in fish (with emphasis on elasmobranchs), a summary of CEFAS tagging ...
Meeting Document : WG-SAM-13/25 Rev. 1 : Auteur(s): S.R. McCully, D. Goldsmith, G. Burt, R. Scott and J.R. Ellis (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 : Auteur(s): D.J. Agnew and J.P. Croxall (United Kingdom)
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A review and analysis of indices from CEMP data
Abstract: A data checking and validation process was undertaken for the data held in the CCAMLR ... examine the temporal patterns in the available time series as well as inter-site and inter-species ... comparisons. A series of questions designed to improve the understanding of the characteristics of different ... paramters is provided for discussion by the Working Group. Author(s): Secretariat Title: A review and ...
Meeting Document : WG-EMM-12/62 : Auteur(s): Secretariat