Search results
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Fitting a von Bertalanffy growth model to length-at-age data accounting for length-dependent fishing selectivity and length-stratified sub-sampling of length frequency samples
Abstract: Response-biased sampling in the context of regression modelling occurs when sample ... units are selected with a probability that is a function of the response. In sampling to obtain fish to ... process involving a particular gear, and (ii) the method of on-deck sub-sampling fish for ageing from the ... random length frequency sample. When the selectivity of the gear combined with availability of fish to be ...
Meeting Document : WG-FSA-SAM-05/13 : Author(s): S.G. Candy (Australia)
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Admiralty Bay (South Shetland Islands) as a model area for the long-term marine monitoring program – reasons and opportunities
Abstract: The objectives of this work are to demonstrate the unique character of Admiralty Bay ... , King George Island, South Shetlands (Subarea 48.1) in terms of its location, hydrology and existing ... ecological research (hundreds of papers in various disciplines published in a variety of scientific journals ... problems because of the availability of rich data collected two and three decades ago, as well as the ...
Meeting Document : WG-EMM-14/59 : 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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Short paper to CCAMLR on the ICED Southern Ocean food webs and scenarios workshop: ICED information paper for CCAMLR WG-EMM
CCAMLR in improving the basis for future monitoring and management of Southern Ocean ecosystems, and ... ecosystems in order to help inform management of Southern Ocean fisheries. As part of this ICED convened a ... workshop in November 2013 on “Southern Ocean food webs and scenarios of change”, and is currently preparing ... , E.J. Murphy, S.L. Hill and N.M. Johnston (United Kingdom) (on behalf of the ICED workshop and ICED ...
Meeting Document : WG-EMM-14/07 : Author(s): R.D. Cavanagh, E.J. Murphy, S.L. Hill and N.M. Johnston (United Kingdom) (on behalf of the ICED workshop and ICED Scientific Steering Committee)
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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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CCAMLR Statistical Bulletin, Vol. 31
(255) Fishing activity description with reference to CCAMLR conservation measures. Entity Name ... volume in MS Access database format. The Bulletin contains the complete time series of catch and effort ... statistics and trade statistics, as well as the catch histories of selected species and the seabed areas in ... the CCAMLR fishery webpages. The data structure in these tables is the same as that used for the csv ... data files, and documentation is included in the zip file. To access the Statistical Bulletin, please ...
Document : Site Section: Data
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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