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1. Selectivity of standard polish commercial trawl codends on Antarctic fishing grounds

   solution to the problem of ensuring selectivity of codends at a sufficiently good level seems possible as a ... = 100 mm, made of double twines with a thickness of 4.2 mm. The studies covered 6 major fish species. 1 ... during trawling, although the effectiveness of this process- especially in the latter case- is not ... tendency to pass through meshes of the codend than Antarctic icefish and bumphead notothenia. 3. The ...

   Meeting Document : SC-CAMLR-VII/BG/11 : Author(s): J. Zaucha (Poland)

2. Field identification guide to the main fishes caught in the Ross Sea longline fishery

   longline boats fishing in the Ross Sea was prepared under the New Zealand Ministry of Fisheries Project ... ANT2005-02 and was used by Ministry of Fisheries observers and fishers during the 2006–07 season. That ... (eelpouts) and bathydraconids (dragonfishes) identification is at family level and for Muraenolepis (eel ... fishes is difficult because of uncertain taxonomic status, e.g., Pogonophryne, or scarcity of field ...

   Meeting Document : WG-FSA-07/41 : Author(s): P.J. McMillan, P. Marriott, S.M. Hanchet, J.M. Fenaughty, E. Mackay and H. Sui (New Zealand)

3. REFERENCE OBSERVATIONS FOR VALIDATING AND TUNING OPERATING MODELS FOR KRILL FISHERY MANAGEMENT IN AREA 48

   Abstract:  In 2007 WG-SAM defined a set of reference observations for validating and tuning ... reference points for the density of krill, and the abundance of “generic” seals, penguins and whales in 1970 ... , 2007 and at least one intermediate year. Recent work on baleen whales indicates a higher growth rate ... . The numerical calendar is a partly subjective interpretation of limited data and should not be ...

   Meeting Document : WG-EMM-08/10 : Author(s): S. Hill (United Kingdom), J. Hinke (USA), É. Plagányi (South Africa) and G. Watters (USA)

4. New Antarctic deep-sea weird leech (Hirudinida: Piscicolidae): morphological features and phylogenetic relationships

   parasite of Whitson’s grenadier Macrourus whitsoni (Regan) (Macrouridae: Gadiformes) collected in the Ross ... Sea at depths from 1,221 to 1,433 m, is described and compared with related taxa based on ... tubercles on the venter and dorsal segmental tubercles, an uncommon appearance of its anterior sucker with ... combination of features of the reproductive and digestive systems. The presence of uncommon tubercles can be ...

   Meeting Document : WG-FSA-18/P01 : Author(s): A. Utevsky and S. Utevsky

5. PROPOSAL FOR AN EXTENSION TO THE MARK–RECAPTURE EXPERIMENT TO ESTIMATE TOOTHFISH POPULATION SIZE IN THE SOUTH OF SUBAREA 48.4

   with discard weights at 19% and 0.8% of toothfish catches, respectively. These rates are similar to ... Abstract:  1. A three-year tagging study in the South of Subarea 48.4 was initiated in the 2008/09 ... fishing season with the aims of providing the data required for assessments of the population structure ... , size, movement and growth of both Dissostichus eleginoides and Dissostichus mawsoni in the South of ...

   Meeting Document : WG-FSA-09/18 : Author(s): J. Roberts and D.J. Agnew (United Kingdom)

6. Beach debris survey – Main Bay, Bird Island, South Georgia, 2001/02

   Abstract:  During the twelfth year of standardised beach surveys of man-made debris at Bird Island ... , South Georgia, a total of 193 items was collected, 140 during summer and 53 during winter. This ... represents a 33 % decrease on the total of 290 items recorded in 2000/01 and the lowest level of summer beach ... year. The 2001/02 season was characterised by a dramatic decrease in the proportion of nylon line ...

   Meeting Document : SC-CAMLR-XXII/BG/10 : Author(s): Delegation of the United Kingdom

7. Statistical problems in krill stock hydroacoustic assessments

   Abstract:  Two primary issues are at question for hydroacoustic assessments of krill, The first is ... accuracy of target-strength measurements. In the case of statistical methods, there are no clear guidelines ... techniques. However, this does not invalidate the use of available methods to conduct surveys and analyze ... results. In the case of target-strength accuracy, even if the present values were very accurate, the issue ...

   Meeting Document : SC-CAMLR-VII/BG/22 : Author(s): United States of America

8. Penguin demography and winter distributions in the Antarctic Peninsula region

   Abstract:  Our long-term seabird research at Admiralty Bay has documented annual variability in ... the life history parameters of the breeding biology and ecology of Adélie, gentoo, and chinstrap ... periodicity of sea ice cover in the region. This climate change, and the associated reduction in winter sea ...

   Meeting Document : WG-EMM-01/32 : Author(s): W. Trivelpiece and S. Trivelpiece (USA)

9. A proposal for a standardised survey for Antarctic toothfish in McMurdo Sound

   abundance of Antarctic toothfish. A pilot season was carried out in 2014, where sampling gear and ... integrated with ongoing collaborative research programmes to determine the importance of toothfish to ... (number of stations sampled per season) needed to detect a moderate change in the abundance index is ... likely to be higher than feasible at this stage. Therefore, techniques and additional infrastructure will ...

   Meeting Document : WG-FSA-15/33 : Author(s): S.J. Parker, S.M. Hanchet and S. Mormede (New Zealand)

10. Introducing Casal2 for toothfish stock assessments

    methods. Casal2 is open-source and is available at https://github.com/NIWAFisheriesModelling/Casal2 ... Initial comparisons of CASAL and Casal2 show that these programs provide the same stochastic results, and ... identical empirical results for estimation of key productivity parameters. We invite Members to test Casal2 ... github website. We also suggest that one or multiple assessments of toothfish be included in the Casal2 ...

    Meeting Document : WG-SAM-18/14 : Author(s): S. Mormede

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