Search results
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Admiralty Bay (South Shetland Islands) - long-term marine monitoring program
) marine monitoring program in the region of Admiralty Bay was started. Biological, chemical and geological ... Abstract: Dynamic climate changes have become noticeable in recent decades, especially in the ... the site of comprehensive environmental studies over the last 30 years and existing data sets provide ... the opportunity for long-term comparisons, and recognition of any ecosystem changes, and potential ...
Meeting Document : WG-EMM-15/47 : Author(s): A. Panasiuk-Chodnicka, M. Korczak-Abshire, M.I. Żmijewska, K. Chwedorzewska, E. Szymczak, D. Burska, D. Pryputniewicz-Flis and K. Łukawska-Matuszewska (Poland)
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Revised selectivities for Dissostichus eleginoides taken by longliners in Subarea 48.3
method for estimating the selectivities based on an assumption that the proportions of the total CPUE in ... selectivities for the years 1995 – 2000 for input to the GYM assessment. In this paper, I propose a revised ... . This removes some of the ad hoc nature of the former estimation method. The method is illustrated by ... selectivity curves for toothfish taken by longliners around South Georgia and Shag Rocks over the period 1995 ...
Meeting Document : WG-FSA-02/64 : Author(s): G.P. Kirkwood (United Kingdom)
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Marine debris and entanglements at Bird Island and King Edward Point, South Georgia, Signy Island, South Orkneys and Goudier Island, Antarctic Peninsula 2014–2015
period. Overall, the occurrence of beached marine debris was above the long-term mean at Bird Island ... during both winter and summer. The incidence of marine mammal entanglements was below the long-term mean ... at all sites surveyed. Debris associated with seabird colonies was above the mean level for wandering ... albatrosses and grey-headed albatrosses, but below the mean for black-browed albatrosses and giant petrels ...
Meeting Document : SC-CAMLR-XXXIV/BG/27 : Author(s): Delegation of the United Kingdom
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Estimation of total removals (green weight)
Abstract: Through an in-depth discussion at the WG-EMM regarding green-weight estimation in the ... krill fishery, the Working Group recognised importance of obtaining detailed information on the methods ... by which green weight is estimated. The Report of WG-EMM included an appendix that describes this ... issue in detail and identifies a process by which the required information and data could be acquired ...
Meeting Document : SC-CAMLR-XXXI/BG/15 : Author(s): Co-conveners of the Working Group on Ecosystem Monitoring and Management
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Southern right whale (Eubalaena australis) reproductive success is influenced by krill (Euphausia superba) density and climate
change in the abundance of the species main prey, krill (Euphausia superba), on the feeding grounds ... Abstract: The reproductive success of southern right whale (Eubalaena australis) depends on body ... between 1997 and 2013 in southern Brazil, where the species concentrate during their breeding season. The ... analysis we examined the response of the species to climate anomalies and krill densities. Significant ...
Meeting Document : WG-EMM-16/P06 : Author(s): E. Seyboth, K.R. Groch, L. Dalla Rosa, K. Reid, P.A.C. Flores and E.R. Secchi
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IUU fishing activity and trends in 2017/18 and IUU Vessel Lists
by Indonesian authorities. Instances of unidentified fishing gear retrieved in the Convention Area ... Abstract: This paper summarises information held by the Secretariat in relation to IUU fishing ... ports, and combined international efforts leading to seizure of the vessel and prosecution of the Master ... and vessel activity relevant to CCAMLR from October 2017 to August 2018. Details are provided of an ...
Meeting Document : CCAMLR-XXXVII/12 : Author(s): CCAMLR Secretariat
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IMPROVING ESTIMATES OF ADÉLIE PENGUIN BREEDING POPULATION SIZE: DEVELOPING FACTORS TO ADJUST ONE-OFF POPULATION COUNTS FOR AVAILABILITY BIAS
times within a breeding season to minimise bias in estimates of the breeding population has long been ... Abstract: It is widely recognised that the interpretation of counts of penguin populations at ... recognised, the considerable work in obtaining one-off counts for population surveys have not been matched by ... the collection of adjustment data. This was recognised at the recent Predator Survey workshop, where ...
Meeting Document : WG-EMM-09/38 : Author(s): C. Southwell, J. McKinlay, L. Emmerson, R. Trebilco and K. Newbery (Australia)
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Zooplankton target strength: volumetric or areal dependence?
the scattering characteristics of zooplankton. In addition, because scattering from individual ... MHz and the dependence of these data on animal volume versus cross-sectional area was explored The 420 ... seawater. The data were compared to both empirical and theoretical models of reduced target strength (TS ... normalized by the square of the animal length) versus ka (the product of wave number and equivalent ...
Meeting Document : WG-Krill-94/13 : Author(s): D.A. Demer and L.V. Martin (USA)
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Characterising catch and effort from data-poor toothfish fisheries in CCAMLR Divisions 58.4.3 – 58.4.4
Bank) accumulated the highest proportion of allocated effort in which a total of 948 sets (52\%) were ... not been completed in most of the recent fishing seasons. Soaking time showed high variability and no ... to fishing logbooks recorded in the exploratory fisheries carried out between July 2000 and March ... 2012. During this period, a total of 9 countries registered fishing operations in which 1811 sets were ...
Meeting Document : WG-SAM-13/41 : Author(s): J.C. Quiroz, R. Wiff (Chile) and P. Martinez (Argentina)
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Marine debris and entanglements at Bird Island and King Edward Point, South Georgia, Signy Island, South Orkneys and Goudier Island, Antarctic Peninsula 2016/17
the long-term mean at both Bird Island and Goudier Island but below the mean at Signy Island. The incidence ... of marine mammal entanglements was below the long-term mean at all sites surveyed. Debris associated ... with seabird colonies was above the mean level for wandering albatrosses and grey-headed albatrosses, but below ... the mean for black-browed albatrosses and giant petrels. Author(s): C. Waluda Title: Marine debris ...
Meeting Document : SC-CAMLR-XXXVI/BG/35 : Author(s): C. Waluda