Resultados de la búsqueda
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Review of research into seabird–fishery interactions
(post 1990), and in relation to direct effects of fishing through fisheries mortalities was considered ... . The research was divided into five main groupings: a) estimation of bycatch; b) population estimation ... allow an assessment of the utility, current methodologies, and constraints of research into seabird ... biology and fishery interactions. Following from the findings of the review, recommendations were ...
Meeting Document : WG-FSA-05/42 : Autor(es): R. Alderman (New Zealand)
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On experimental approach to extend boundaries of exploratory fishery on Antarctic toothfish (D. mawsoni) in the Ross Sea (Subareas 88.1 and 88.2) in the meso- and bathypelagial layers
Abstract: Based on the analysis of data on the searching fishery on Antarctic toothfish (D ... . mawsoni) by the Russian fishing vessels "Yantar" and "Volna" in the seasons of 2002/03 ... -2003/04 it has been obtained that the long-line catchability and size composition of fish depended on ... the areas and depth of Antarctic toothfish concentration the need for extension of searching fishery ...
Meeting Document : SC-CAMLR-XXIII/BG/19 : Autor(es): Delegation of Russia
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A simulation approach to the evaluation of recruitment surveys for D. eleginoides for the Heard Island Plateau region (Division 58.5.2)
Abstract: Assessments of long-term sustainable yield using the Generalised Yield Model (GYM) and ... the setting of total allowable catches (TAC) for Patagonian Toothfish, Dissostichus eleginoides, for ... . Evaluation of both the current RSTS design for Division 58.5.2 and some options for future modifications of ... . Census of fish stocks by age class were compared to population estimates based on simulated RSTS hauls ...
Meeting Document : WG-FSA-04/74 : Autor(es): S.G. Candy, C.R. Davies and A.J. Constable (Australia)
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Fish in the diet of breeding Antarctic shags Phalacrocorax bransfieldensis at four colonies in the Danco Coast, Antarctic Peninsula
Abstract: The diet of breeding Antarctic shags Phalacrocorax bransfieldensis was investigated at ... four colonies at the Danco Coast, Antarctic Peninsula, by the analysis of 616 pellets (regurgitated ... , Notothenia coriiceps was the main prey in all of the sampling sites, followed in similar importance by G ... Point. Between colonies there were marked differences in the size of the fish consumed. The largest ...
Meeting Document : WG-EMM-00/9 : Autor(es): R. Casaux, A. Baroni and E. Barrera-Oro (Argentina)
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Effects of orientation on acoustic scattering from Antarctic krill at 120 kHz
Abstract: Backscattering measurements of 14 live individual Antarctic krill (Euphausia superb a ... ) were made at a frequency of 120 kHz in a chilled insulated tank at the Long Marine Laboratory in Santa ... Cruz, CA. Individual animals were suspended in front of the transducers, were only loosely constrained ... of the krill based on the video images and was applied to five of them, giving their target strengths ...
Meeting Document : WG-EMM-99/42 : Autor(es): D.E. McGehee (USA), R.L. O’Driscoll (New Zealand) and L.V. Martin Traykovski (USA)
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Trends in entanglement of Antarctic fur seals (Arctocephalus gazella) in man-made debris at South Georgia
. Consequently, the authority responsible for the management of Southern Ocean marine resources (CCAMLR) actively ... campaigned for compliance with the MARPOL provisions relating to waste disposal at sea, and for cutting of ... of recording entangled fur seals confirms that entanglement is a persistent problem, although its ... doubled in the same period, so that the overall total of animals entangled may even have increased ...
Meeting Document : SC-CAMLR-XV/BG/03 : Autor(es): Delegation of the United Kingdom
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On the estimation of some demographic parameters for Adelie penguins
Abstract: A population dynamics model for Adelie penguins is developed which takes account of the ... factors of lower adult survival rates in the year of first breeding, and the possibility that such ... breeding may be deferred one year if conditions are poor. A Bayesian approach for estimation of the model ... for illustrative purposes. The results for this case would likely be improved by the provision of more ...
Meeting Document : WG-EMM-95/42 : Autor(es): Thomson, R.B., Butterworth, D.S.
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Fish prey of the wandering albatross Diomedea exulans at South Georgia
Abstract: The fish diet (45% of total diet by weight) of Wandering Albatrosses rearing chicks at ... South Georgia during the austral winters of 1983 and 1984 was investigated using otoliths retrieved from ... regurgitations. These provide the first quantitative data for this species and for any albatross. By number of ... (estimated from otolith length) of the main species was Pseudochaenichthys 51%, Muraenolepis 14 ...
Meeting Document : SC-CAMLR-VII/BG/05 : Autor(es): J.P. Croxall, A.W. North and P.A. Prince (United Kingdom)
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Climate change and the role of CCAMLR
Abstract: Abstract Fishing magnifies the sensitivity of ecosystems to the effects of climate ... adapting fishing strategies. ASOC advocates that the role of CCAMLR in the climate change context continues ... change, including monitoring efforts, data collection and area protection; 2) extending the use of Marine ... Protected Area (MPAs) networks; 3) extending the application of the Precautionary Approach to include the ...
Meeting Document : CCAMLR-XXIX/BG/19 : Autor(es): ASOC Observer
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A feedback approach to Ecosystem Based Management: model predictive control of the Antarctic krill fishery
Abstract: The Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) aims ... to develop a feedback approach to aid Ecosystem Based Management (EBM) of the Antarctic krill fishery ... rules based on their predicted performance in a model of the controlled system. Here we use MPC to ... develop a robust control strategy for a simulation model of a spatially resolved predator-prey system. We ...
Meeting Document : WG-EMM-12/19 : Autor(es): S. Hill and M. Cannon (United Kingdom)