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1. Descriptive analysis of the toothfish (Dissostichus spp.) tagging programme in Subareas 88.1 & 88.2 for the years 2000–01 to 2012–13

   Abstract:  We provide an update of the descriptive analyses of the toothfish tagging programme in ... Subareas 88.1 and 88.2, including summaries of data for the 2013 season. Overall, a total of 37 047 ... tagging rate of one toothfish per tonne of catch in the Ross Sea region. Tag recapture data showed that ... most fish are recorded as being recaptured only a short distance from their point of release, typically ...

   Meeting Document : WG-FSA-13/49 : Автор(ы): S. Parker, A. Dunn, S. Mormede and S. Hanchet (New Zealand)

2. Selectivity and two biomass measures in an age-based assessment of Antarctic krill (Euphausia superba)

   Abstract:  An integrated, age-structured model was fitted to different combinations of survey data ... using two forms of selectivity (logistic or double-logistic) with time-constant or annually varying ... selectivity to investigate the population dynamics of Antarctic krill (Euphausia superba) near the Antarctic ... the South Shetland Islands from 1992 to 2011. Two indices of krill biomass based on (1) trawl-net ...

   Meeting Document : WG-EMM-15/P07 : Автор(ы): D. Kinzey, G.M. Watters and C.S. Reiss

3. An ecosystem-based management procedure for krill fisheries: a method for determining spatially-structured catch limits to manage risk of significant localised fisheries impacts on predators

   single-species assessment of yield, and a method for implementing the procedure.  The decision rule for ... setting catch limits for a given harvest strategy has a straight forward expression of the target ... of predator-prey dynamics beyond that evident in the data.  It is a natural extension of the current ... precautionary approach of CCAMLR for krill and can utilise existing datasets, including B0 surveys, local scale ...

   Meeting Document : WG-EMM-15/36 : Автор(ы): A. Constable and S. Candy (Australia)

4. Performance metrics to index the spatial coverage of mark-recapture data

   Abstract:  Understanding the spatial distribution of the release of tagged fish and the subsequent ... spatial coverage of fishing effort to recapture tagged fish is an important consideration when ... measures of spatial overlap and potential bias in the development of tag-based biomass estimates are an ... statistics: (i) a single measure of the degree of spatial overlap between the release of tagged fish and ...

   Meeting Document : WG-SAM-16/13 : Автор(ы): C. Marsh, A. Dunn and S. Mormede

5. Classification of Southern Ocean krill and icefish echoes using Random Forests

   Abstract:  Target identification remains a challenge for acoustic surveys of marine fauna ... . Antarctic krill, Euphausia superba, are typically identified through a combination of expert scrutiny of ... echograms and analysis of differences in mean volume backscattering strengths (S V; dB re 1 m-1) measured at ... icefish are currently surveyed using bottom-trawls, but the resultant estimates of abundance may be biased ...

   Meeting Document : WG-EMM-16/23 : Автор(ы): N. Fallon, S. Fielding and P. Fernandes

6. Size and stage composition of age class 0 Antarctic krill (Euphausia superba) in the ice-water interface layer during winter/early spring

   Abstract:  The condition and survival of Antarctic krill (Euphausia superba) strongly depends on ... developmental stage. A comprehensive understanding of sea ice habitat use by krill, however, remains largely ... unknown. The aim of this study was to improve the understanding of the krill's interaction with the ... sea ice habitat during winter/early spring by conducting large-scale sampling of the ice-water ...

   Meeting Document : WG-EMM-16/P16 : Автор(ы): F. Schaafsma, C. David, E. Pakhomov, B. Hunt, B. Lange, H. Flores, J.A. van Franeker

7. Otolith chemistry reveals local population structure of Antarctic toothfish (Dissostichus mawsoni) within the CCAMLR Subarea 48.6

   and economical value and that distributed in the high latitude of the Southern Ocean. The CCAMLR ... subarea 48.6 is one of an important fishing zone, however, the local population structure of D. mawsoni is ... unknown in this regions, which hampered the understanding on population dynamics of this species and the ... management of toothfish fishery. The chemistry in the otolith can often be used to distinguish population ...

   Meeting Document : WG-FSA-18/75 : Автор(ы): L. Wei, G.P. Zhu, S. Somhlaba, X.Y. Yu and M. Duan

8. Advances are urgently needed in providing regular estimates of krill stock status based on the available data

   measure (the trigger level) which was established in 1991 and is “not related to the status of the krill ... trigger level is not related to the status of the stock. The establishing terms of reference for WG-EMM ... include requests to “assess the status of krill” and “develop management advice … for management of krill ... fisheries”. Although WG-EMM is now a quarter century old, it rarely assesses the status of the krill stock ...

   Meeting Document : WG-EMM-2019/28 : Автор(ы): S. Hill, J. Hinke, N. Ratcliffe, P. Trathan and G. Watters

9. A LARGE-SCALE SURVEY OF ADÉLIE PENGUIN BREEDING DISTRIBUTION IN EAST ANTARCTICA

   populations. This paper describes a comprehensive, large-scale survey of the current breeding distribution of ... Abstract:  A recent gap analysis of knowledge of the breeding distribution of the Adélie penguin ... across the Australian Antarctic Territory in east Antarctica found that approximately half of the species ... ’ potential breeding habitat had no evidence of ever being searched. With such incomplete knowledge of the ...

   Meeting Document : WG-EMM-11/34 : Автор(ы): C. Southwell and L. Emmerson (Australia)

10. Entanglement of Antarctic fur seals (Arctocephalus gazella) by man made debris at Bird Island, South Georgia, during the 2005 winter and 2005/06 breeding season

    Abstract:  Results of the survey of entanglements of Antarctic fur seals at Bird Island, South ... reported here. Two entanglements were observed in the winter, a decrease of 60% from the previous year, and ... the lowest number seen since records began in 1990. One of these involved a male pup entangled in ... individual involved. In contrast there was double the number of observed entanglements during summer of 2005 ...

    Meeting Document : SC-CAMLR-XXV/BG/13 : Автор(ы): Delegation of the United Kingdom

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