Search results
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A proposal for a CCAMLR vessel monitoring system
Abstract: A draft configuration of the CCAMLR Vessel Monitoring System (VMS) was prepared using ... available expertise in the design and implementation of satellite-based vessel monitoring of several CCAMLR ... Members and of the Forum Fisheries Agency. Technical consultation on VMS development, set-up and operation ... the Australian Fisheries Management Authority (AFMA), Telstra Mobile Satellite and Radio Services ...
Meeting Document : CCAMLR-XIV/14 : Author(s): Secretariat
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Destruction of Antarctic terrestrial ecosystems by a rapidly increasing fur seal population
Abstract: The terrestrial environment of Signy Island, South Orkney Islands, maritime Antarctic ... , is undergoing rapid and possibly irreversible change caused by a natural biological agent. During the ... past decade there has been a dramatic increase in the number of Antarctic fur seals Arctocephalus ... gazella coming ashore on the island during the short summers. It is not known whether significant numbers ...
Meeting Document : SC-CAMLR-VII/BG/06 : Author(s): R.I. Lewis Smith (United Kingdom)
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Are krill recruitment indices from meso-scale survey representative for larger areas?
Abstract: The present contribution uses data from German surveys in the 1980’ies and the US LTER ... programme which continuously collected krill demography data since 1993 during the austral summer season in ... the upstream area of the Elephant Island mesoscale survey. The intention was to compare the ... surveys are representative for a wider region Generally the proportional recruitment indices for one (R1 ...
Meeting Document : WG-EMM-02/20 : Author(s): V. Siegel (Germany), R.M. Ross and L.B. Quetin (USA)
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Joint CEP/SC-CAMLR workshop (2016) on climate change and monitoring
Abstract: The Committee on Environmental Protection and SC-CAMLR have endorsed the proposal to ... hold a second Joint CEP/SC-CAMLR Workshop in 2016. The agreed general scope of the workshop is to ... identify the effects of climate change that are considered most likely to impact the conservation of the ... Antarctic, and to identify existing and potential sources of research and monitoring data relevant to the ...
Meeting Document : WG-EMM-15/18 : Author(s): S. Grant (UK) and P. Penhale (USA)
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Estimating nest-level phenology and reproductive success of colonial seabirds using time-lapse cameras
Abstract: We wish to draw the attention of Members to an online application of the R code ... published in the attached paper. The web-based app ‘photoR’ (https://jefferson.shinyapps.io/photor2 ... ) implements the methods of the paper and provides summary outputs for direct input to CEMP A6b and A9 eforms ... . The abstract of the paper follows: Summary 1. Collecting spatially extensive data on phenology and ...
Meeting Document : WG-EMM-18/P01 : Author(s): J.T. Hinke, A. Barbosa, L.M. Emmerson, T. Hart, M.A Juáres, M. Korczak-Abshire, G. Milinevsky, M. Santos, P.N. Trathan, G.M. Watters and C. Southwell
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An exact time of release and recapture stock assessment model applied to Macquarie Island Patagonian toothfish (Dissostichus eleginoides)
Abstract: This paper presents an assessment of the harvested population of Patagonian toothfish ... at Macquarie Island based on data from a tag-recapture experiment initiated during the 1995/96 ... , catches, recaptures, natural mortality, and annual net recruitment are used to assess the population of ... one of the main fishing regions of Macquarie Island: Aurora Trough. The pre-tagging abundance is ...
Meeting Document : WG-FSA-00/43 : Author(s): G. Tuck, W. de la Mare, W. Hearn, R. Williams, A. Smith, X. He and A. Constable (Australia)
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A proposal to report marine casualties to CCAMLR
Abstract: The delegations of the United States and New Zealand propose to amend CCAMLR ... flag vessels operating in the Convention Area) to require an investigation in the event of a very ... serious marine casualty¹ involving a fishing vessel². Such investigation will result in the preparation of ... a report to be shared with the Commission. The proposal is consistent with Article 94(7) of the ...
Meeting Document : CCAMLR-XXX/24 : Author(s): Delegations of the USA and New Zealand
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Foraging trip duration in male and female macaroni penguins at Bouvetøya
Abstract: The CEMP Standard Methods for monitoring foraging trip duration in Macaroni Penguins ... recommend using only males. However, males attend the chicks at the nest during most of the brooding period ... , while the females make frequent foraging trips. We analysed data from 17 males instrumented with VHF ... -transmitters in the middle of the brooding period (chick age 12-18 days) and 17 females instrumented at the ...
Meeting Document : WG-EMM-98/28 : Author(s): F. Mehlum, K. Isaksen and V. Bakken (Norway)
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Developing robust biomass estimates and advice on catch limits in research blocks
Abstract: In 2016, changes to the methods used by CCAMLR to estimate biomass in research blocks ... resulted in conflicting estimates of biomass between the CPUE by seabed area and the Chapman estimate. The ... Scientific Committee requested that the changes to the methods be reviewed, that scientific rational for the ... that improves on the original CPUE by seabed area method for toothfish populations in research blocks ...
Meeting Document : WG-SAM-17/37 : Author(s): S.J. Parker, S. Mormede, A. Dunn, S.M. Hanchet and C. Marsh
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Calculating effective releases and recaptures for stock assessments based on tag detection and tagging mortality indices
developed using a methodology which controls for the spatial and temporal variability of fishing operations ... occurred in the same time and place (i.e. within a specific distance and in the same fishing season). The ... method showed that when the confounding effects of variable fishing location and time were controlled ... , there were nonetheless significant differences between vessels with respect to the tag detection index ...
Meeting Document : WG-SAM-14/30 : Author(s): S. Mormede (New Zealand)