Resultados de la búsqueda
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Detection of predator dive patterns from stationary echosounder data
clear patterns in the dive data with regards to time of year as well as time of day. At the temporal ... networks developed for general image recognition, we detected diving events by air-breathing predators in a ... 1 year dataset from an acoustic lander located close to the South Orkneys. The analysis documented ...
Meeting Document : WG-EMM-2019/34 : Autor(es): T. Klevjer and G. Skaret
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Setting management goals using information from predators
of ecosystem structure and function. Following this, the precautionary approach developed in the ... trophic levels in setting catch limits for target prey species is described. The last section considers ...
Meeting Document : WG-EMM-07/P7 : Autor(es): A. Constable (Australia)
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Analysis of albatross and petrel distribution within the CCAMLR Convention Area: results from the global procellariiform tracking database
Abstract: This paper presents an analysis of the distribution of albatrosses and petrels in the ... , with the lowest proportion of distribution being in Sub-Areas 88.2 and 88.3. Current and future ...
Meeting Document : WG-FSA-05/75 : Autor(es): BirdLife International
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Reducing seabird by-catch with an underwater longline setting funnel
in a demersal longline fishery for Patagonian toothfish Dissostichus eleginoides. The funnel, which ... offers a significant reduction in seabird mortality and could increase fishing efficiency by allowing ... million hooks) over a two-year period. There was no evidence for lower catches or significantly higher ...
Meeting Document : WG-FSA-00/29 : Autor(es): P. Ryan and B. Watkins (South Africa)
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Influence of sampling protocol on diet determination of gentoo penguins, Pygoscelis papua and Antarctic fur seals, Arctocephalus gazella
in the mass of food recovered from penguins were found but this was attributed to the mass of penguin ... sampled. There were no differences in diet composition between protocols and although body mass was a ...
Meeting Document : WG-EMM-99/29 : Autor(es): S.D. Berrow, R.I. Taylor and A. Murray (United Kingdom)
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CLIMATE CHANGE AND THE ANTARCTIC MARINE ENVIRONMENT: MANAGEMENT IMPLICATIONS
international obligations. We suggest that in order for CEP and CCAMLR to undertake their respective schedules ... greatest amount. All of the risks described in this paper probably vary with latitude and longitude, with ...
Meeting Document : WG-EMM-09/24 : Autor(es): P.N. Trathan and D. Agnew (United Kingdom)
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A generalised model for evaluating yield and the long term status of fish stocks under conditions of uncertainty
seasonal patterns in fishing mortality, at specified time intervals during the year. This general approach ... trajectories and catch rates over a simulation period. In particular, this procedure calculates catches over ... each year by integrating a set of differential equations which incorporate functions that specify the ...
Meeting Document : WG-FSA-95/41 : Autor(es): de la Mare, W.K., Constable, A.J.
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A brief exploitation of the stone crab Lithodes murrayi (Henderson) off south west Africa, 1979/80
crabs were present in small numbers over a much larger area. Over 90 per cent of the fishing effort was ... applied in this area of high concentration, accounting for almost 95 per cent by mass of the total catch ...
Meeting Document : WS-CRAB-93/21 : Autor(es): R. Melville-Smith (South Africa)
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Destruction of Antarctic terrestrial ecosystems by a rapidly increasing fur seal population
past decade there has been a dramatic increase in the number of Antarctic fur seals Arctocephalus ... of seals were present on the island prior to the initiation of commercial hunting in the early 1820s ...
Meeting Document : SC-CAMLR-VII/BG/06 : Autor(es): R.I. Lewis Smith (United Kingdom)
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The error of the biomass estimate as a function of survey parameters and the statistics of a density field of krill aggregations
Abstract: Simple relationships expressing dependence of sampling relative error in biomass ... transects (sections) serve as survey parameters. Dependences offered here, can be used in practice both for ...
Meeting Document : SC-CAMLR-VI/BG/39 : Autor(es): Z.I. Kizner (USSR)