Search results
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Spatial overlap of krill-dependent predators and krill fishery catches and a proposal for subdivision of catch limits in Subarea 48.1
understanding of spatial overlap between predators and fishing activity. We provide estimates of the spatial ... restricted to the last 5 years, since this time period emphasizes the shift toward autumn and winter fishing ... during the winter period, especially in the Bransfield Strait. Across years, predator distributions ... might affect the distribution of fishing effort. A comparison of CEMP parameters from two years with ...
Meeting Document : WG-EMM-14/36 : Author(s): J.T. Hinke, M.E. Goebel (USA), M.M. Santos (Argentina), P.N. Trathan (UK), W.Z. Trivelpiece and G.M. Watters (USA)
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VARIABILITY IN KRILL BIOMASS LINKS HARVESTING AND CLIMATE WARMING TO PENGUIN POPULATION CHANGES IN ANTARCTICA
Abstract: The West Antarctic Peninsula (WAP) and adjacent Scotia Sea support abundant wildlife ... populations, many of which were nearly extirpated by humans. This region is also among the fastest-warming ... areas on the planet, with 5–6 °C increases in mean winter air temperatures and associated decreases in ... winter sea-ice cover. These biological and physical perturbations have affected the ecosystem profoundly ...
Meeting Document : WG-EMM-11/P1 : Author(s): W.Z. Trivelpiece, J.T. Hinke, A.K. Miller, C.S. Reiss, S.G. Trivelpiece and G.M. Watters
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CCAMLR observer manual questionnaires: summary results of preliminary analysis during its introductory period
Abstract: Preliminary analysis of data from the questionnaires of krill fishery behavior in ... CCAMLR observer manual was undertaken. The analysis revealed possible inconsistency in definitions of the ... event codes among different skippers. Some suggestions were made to improve the quality of questionnaire ... format to better understand the nature of the fishery. Author(s): S. Kawaguchi and S. Nicol (Australia ...
Meeting Document : WG-EMM-05/31 : Author(s): S. Kawaguchi and S. Nicol (Australia)
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Identifying priority areas for conservation within Domain 1
. Main points discussed were the significance of each conservation objective for the process, the best ... way to implement each objective in the analysis and data gaps. Outputs of the workshop are expected to ... contribute to the general discussion on MPA planning for Domain 1. Author(s): J. Arata (Chile) Title ...
Meeting Document : WG-EMM-14/49 : Author(s): J. Arata (Chile)
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A risk management framework for avoiding significant adverse impacts of bottom fishing gear on Vulnerable Marine Ecosystems
adverse impacts of bottom fishing gear on Vulnerable Marine Ecosystems (VMEs) are avoided. Due to the high ... levels of uncertainty surrounding both the evidence of VME presence and the consequences of interaction ... used successfully by IMAF to minimise the effects of longline fishing mortality on seabirds. The aim of ... organisms. The likelihood and consequences of bottom fishing activities, with associated uncertainties, is ...
Meeting Document : WG-EMM-08/37 : Author(s): K. Martin-Smith (Australia)
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Approaches to monitoring and assessing toothfish in new and exploratory fisheries, with particular reference to Subarea 88.1
would be imprudent to rely solely on any one of these methods at the present time. We recommend that tag ... monitor toothfish – and perhaps as importantly – the wider ecosystem effects of the toothfish fisheries ... . We further recommend that simulation studies be carried out to determine the best way to use the ... effort manipulation approach in all New and Exploratory fisheries, and in particular the current active ...
Meeting Document : WG-FSA-SAM-04/08 : Author(s): ODriscoll, R.L., Hanchet, S.M.
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Simulation experiments and CCAMLR yield estimates using CASAL
present an example model for the fictitious fishery on a fictitious species Dissostichus spurious (Everson ... were fitted with an expected percent root mean squared error (%RMSE) of less than 20%. The inclusion of ... the expected performance of integrated models is required that investigates a range of alternative ... “true” states with data that includes bias and variance in observations, as well as the robustness of ...
Meeting Document : WG-FSA-SAM-05/9 : Author(s): A. Dunn (New Zealand)
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Seabird by-catch update on industrial Patagonian toothfish fishery in southern Chile
started the NPOA-S process by estimating the seabird bycatch at the Patagonian toothfish fishery in ... species caught was the black-browed albatross (96% of total birds). Considering the monthly fishing effort ... determined the initiation of the NPOA to reduce seabird incidental mortality in all longline fisheries in ... Chile, which is being developed during 2004 with the close collaboration of all industrial fishery ...
Meeting Document : WG-FSA-04/13 : Author(s): J. Arata, C.A. Moreno and R. Hucke-Gaete (Chile)
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Unmanned Aerial Vehicles based monitoring of indicator species populations on King George Island (Subarea 48.1)
the austral summer 2014/15 season. During photogrammetric flights the high-resolution images of the ... compared with the results of measurements taken at the same time from the ground level. During expedition ... ) less than 5 cm. Precision estimation of individuals count was based on the photo interpretation of ... images. The use of UAV for monitoring of indicator species, enabled data acquisition from areas ...
Meeting Document : WG-EMM-15/48 : Author(s): M. Korczak-Abshire, A. Zmarz, R. Storvold, M. Rodzewicz, K. Chwedorzewska, A. Kidawa and A. Znój (Poland)
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Seabird mortality associated with Patagonian toothfish longliners in Falkland Island waters during 2002/03 and 2003/04
Abstract: The Patagonian toothfish longline fishery set approximately 7.5 million hooks and 9.6 ... million hooks in 2002/03 and 2003/04, respectively. Observers were present during the setting of 59% of ... all lines set during 2002 – 2004 to record adherence to the above provisions and record seabird ... mortality for 2002/03 was 80 Black-browed albatross and for 2003/04, 45 Black-browed albatross. The rates ...
Meeting Document : WG-FSA-05/56 : Author(s): H. Otley and T. Reid (United Kingdom)