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Analysis and modelling of the Soviet Southern Ocean krill fleet, II: Estimating the number of concentrations and analytical justification for search data
Abstract: In this paper, I show how data that are routinely collected by survey vessels can be ... used to estimate the number of Concentrations of krill (in the sense of Butterworth (1988), Mangel ... (1988)) in a given region of the southern ocean. Sample computations are performed, using data collected ... Africa) Title: Analysis and modelling of the Soviet Southern Ocean krill fleet, II: Estimating the ...
Meeting Document : WS-KCPUE-89/06 : Автор(ы): M. Mangel (South Africa)
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Use of current velocity data from fram to investigate the large scale transport of krill in the Scotia Sea
Abstract: Current velocity data from a single time realisation of the FRAM model are presented ... boundaries over the upper 250m of the water column. These have been combined with estimates of krill density ... and standing stocks to consider the large scale flux of krill through the regions and estimate ... residence times Author(s): E.J. Murphy (United Kingdom) Title: Use of current velocity data from fram to ...
Meeting Document : WS-Flux-94/05 : Автор(ы): E.J. Murphy (United Kingdom)
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UPDATED KRILL RECRUITMENT DATA FOR THE ELEPHANT ISLAND REGION OF THE SOUTH SHETLAND ISLANDS, ANTARCTICA; 2002-2008
Abstract: The proportional krill recruitment index is updated from 2002 to present using data ... within the Elephant Island region. Author(s): C. Reiss (USA) Title: UPDATED KRILL RECRUITMENT DATA FOR ... proportional recruitment indices occurred between legs within years indicative of the changing pattern of krill ...
Meeting Document : WG-EMM-08/41 : Автор(ы): C. Reiss (USA)
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Comparison of NASC values calculated by swarm-based and grid-based acoustic data processing methods for Antarctic krill density estimation
-based acoustic data processing methods. All parameter settings were consistent with the reports of SG ... Antarctic krill density estimation. The comparisons suggest that the calculated NASC values of swarm-based ... four surveys. Therefore, it is concluded that the krill density estimated by swarm-based and grid-based ... -based approach and grid-based approach based on data in the paper. In accordance to the suggestions ...
Meeting Document : SG-ASAM-18/04 Rev. 1 : Автор(ы): X. Yu, X. Wang and X. Zhao
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Assessing indicators for feedback monitoring and management of the krill fishery: data and methods for assessing predator productivity as an indicator
management of the krill fishery: data and methods for assessing predator productivity as an indicator ... krill fishery is an estimate of predator productivity attributable to consumption of harvested species ... . We illustrate some of the data and methods that could be used for measuring and evaluating this ...
Meeting Document : WG-EMM-12/39 : Автор(ы): C. Southwell, L. Emmerson and A. Constable (Australia)
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ALLOCATING THE PRECAUTIONARY CATCH LIMIT FOR KRILL AMONGST THE SMALL-SCALE MANAGEMENT UNITS IN AREA 48: THE IMPLICATIONS OF DATA UNCERTAINTIES
suggest that the data documenting the distribution of krill standing stock are likely to be more reliable ... Abstract: Over the past few years WG-EMM has been developing a management procedure for the krill ... the distribution of predator demand (Option 2), krill standing stock (Option 3), or the difference ... distribution of predator demand and krill standing stock and assess their potential implications. We consider ...
Meeting Document : WG-EMM-08/12 : Автор(ы): P.N. Trathan and S.L. Hill (United Kingdom)
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Semi-empirical acoustic estimates of krill biomass derived from simulated commercial fishery data based on single-frequency acoustics
Abstract: Single frequency (38 and 120 kHz) acoustic and associated net data were extracted from ... US AMLR datasets and used to mimic data that might be collected by the commercial fishery during the ... fishing seasons. From these data we develop semi-empirical indices of acoustic biomass in a Generalized ... models of krill biomass, at120 kHz frequency that can be used to augment research acoustic surveys if ...
Meeting Document : SG-ASAM-12/04 : Автор(ы): A.M. Cossio, G.W. Watters, C.S. Reiss, J. Hinke and D. Kinzey (USA)
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Semi-empirical acoustic estimates of krill biomass derived from simulated commercial fishery data based on single-frequency acoustics
Abstract: Single frequency (38 and 120 kHz) acoustic and associated net data were extracted from ... US AMLR datasets and used to mimic data that might be collected by the commercial fishery during the ... fishing seasons. From these data we develop semi-empirical indices of acoustic biomass in a Generalized ... models of krill biomass, at 120 kHz frequency that can be used to augment research acoustic surveys if ...
Meeting Document : SG-ASAM-15/03 : Автор(ы): A.M. Cossio, G.W. Watters, C.S. Reiss, J. Hinke and D. Kinzey (USA)
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Analysis of trawl data from the South Georgia krill fishery
Abstract: Data from individual trawls carried out by vessels operating in the krill fishery at ... : Analysis of trawl data from the South Georgia krill fishery Approval: Approved ... fishery are produced. The measurements indicate that the krill fishery at South Georgia is geographically ... the variability are discussed in relation to the biology of krill, others are discussed in relation to ...
Meeting Document : WG-EMM-97/41 : Автор(ы): Parkes, G., Trathan, P.N., Everson, I., Murphy, E.J.
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Some additional data challenge the concept of the distribution of the gravid krill females related to bottom depths
additional data challenge the concept of the distribution of the gravid krill females related to bottom ... Abstract: The distribution of krill females of the different maturity stages was considered to ... surveys and numerous data from observers revealed no statistically reliable tendency in the gravid females ...
Meeting Document : WG-EMM-05/15 : Автор(ы): V.A. Sushin, F.F. Litvinov, A.S. Sundakov and G. Andrianov (Russia)
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