Search results
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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 2012/13
. Surveys of beached marine debris at Bird Island recorded a total of 145 and 134 items during winter (April ... (operational during summer only; 25 November 2012 to 20 March 2013) recorded a total of 13 items of beached ... marine debris. Entanglements of 13 Antarctic fur seals were observed at Bird Island, 15 at King Edward ... Point and zero at Signy Island and Goudier Island. In total, 85 items of marine debris were found in ...
Meeting Document : SC-CAMLR-XXXII/BG/05 : Author(s): Delegation of the United Kingdom
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Growth and shrinkage in Antarctic krill Euphausia superba is sex-dependent
Abstract: The ability of Antarctic krill Euphausia superba Dana to withstand the overwintering ... during this time in response to the low availability of food. Nevertheless, verification that krill can ... shrink in the natural environment is lacking because winter data are difficult to obtain. One of the few ... sources of winter krill population data is from commercial vessels. We examined length-frequency data of ...
Meeting Document : WG-EMM-16/P04 : Author(s): G. Tarling, S. Hill, H. Peat, S. Fielding, C. Reiss and A. Atkinson
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OPTIONS FOR USING UNREPLICATED ECOSYSTEM MONITORING DATA TO DETECT IMPACTS
response of air breathing predators to localised environmental conditions. CEMP data do not directly ... an important challenge. Potential strategies are likely to consist of a method for inferring impacts ... and a schedule of tactical interventions in response to these impacts (e.g. restrictions on fishing ... activity). We discuss a range of inference methods which are tractable using CEMP data. These methods ...
Meeting Document : WG-EMM-09/26 : Author(s): S. Hill, J. Forcada, P. Trathan and C. Waluda (United Kingdom)
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Beach debris survey – Main Bay, Bird Island, South Georgia, 2003/04
Abstract: During the fourteenth year of standardised beach surveys of man-made debris at Bird ... Island, South Georgia, a total of 361 items were collected between April 2003 and March 2004. This ... represents an increase of 97% on the 183 items recorded in 2002/03 and the highest levels of summer beach ... debris (232 items) since the 1999/00 season. The total weight of debris collected has also increased by ...
Meeting Document : SC-CAMLR-XXIV/BG/15 : Author(s): Delegation of the United Kingdom
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Modelling availability bias using existing time series count data: Adélie penguins as a case study
Abstract: It is widely acknowledged that counts of Adélie and other penguin species at breeding ... . A count of some attribute of the population on any date may therefore need to be adjusted by some ... date-specific factor (termed the availability fraction) if the count is to form the basis of an ... estimate of the breeding population. Existing time series count data of adult Adelie penguins from a range ...
Meeting Document : WG-EMM-04/54 : Author(s): L. Emmerson, B. Raymond and C. Southwell (Australia)
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Modelling catch and effort data using generalised linear models with random cruise effects: trawl fishery for mackerel icefish (Champsocephalus gunnari) in CAMLR Area 58.5.2
Abstract: A set of procedures for modelling catch and effort data using generalized linear mixed ... models (GLMMs) including data analytic methods for examining the appropriateness of model structure and ... parameter values was presented in WG-FSA-SAM 03-12 using Dissostichus eleginoides in Subarea 48.3 of the ... CAMLR area as an example dataset. The application of these procedures to trawl catches of ...
Meeting Document : WG-FSA-03/35 : Author(s): S.G. Candy (Australia)
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CCAMLR Survey Database: development during 2002
had to be postponed because of a higher priority need for developing a web-based data system for the ... Catch Documentation Scheme. Work on the survey database in 2002 included: • revision of the database ... model; • documentation of the database specifications; • development of data uploading routines ... ; • revision of data extraction routine for CMIX and trawlCI; and • processing of historical data. The survey ...
Meeting Document : WG-FSA-02/10 : Author(s): Secretariat
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CCAMLR conservation measures: a review
Abstract: Conservation measures are an integral part of CCAMLR’s management of Antarctic marine ... living resources. The first measure was introduced in 1984, and the number of measures in force each year ... has grown rapidly since that time; 61 measures were in force in 2000/01. The majority of conservation ... measures focus on the management of fisheries and related activities, and most of these measures are in ...
Meeting Document : CCAMLR-XX/BG/04 : Author(s): Secretariat
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How precautionary is the policy governing the Ross Sea Antarctic toothfish (Dissostichus mawsoni) fishery?
Abstract: This article reviews the adequacy of data and models currently being used to estimate ... the present and future population sizes of the Antarctic toothfish (Dissostichus mawsoni Norman) in ... accurate picture of total population size, and that estimates of both the pre-exploitation spawning stock ... biomass and the ratio of current to pre-exploitation biomass are unreliable. Many parameters necessary for ...
Meeting Document : WG-FSA-13/P02 : Author(s): P.A. Abrams
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Preliminary information on inshore demersal fish from the Danco Coast, Antarctic Peninsula, in the 1999/00 summer season
Abstract: A total of 1103 inshore notothenioid fish were caught by means of trammel-nets in four ... ), Danco Coast, West Antarctic Peninsula, in the summer season of 2000. The families Nototheniidae ... , Channichthyidae and Bathydraconidae were represented being Notothenia coriiceps the dominant fish of the area ... terms of number and mass with that of the South Shetland Islands area, except for a marked higher ...
Meeting Document : WG-FSA-00/63 : Author(s): R. Casaux, E. Barrera-Oro, A. Baroni and A. Ramón