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1. Preliminary examination of otolith microchemistry to determine stock structure in Antarctic toothfish (Dissostichus mawsoni) between SSRU 88.1C and 88.2H

   Abstract:  Life history characteristics of Antarctic toothfish (Dissostichus mawsoni), were ... concentrations in the otolith edge and then to (ii) assess the potential of natal signatures to distinguish ... shown. This resulted in the correct classification of 63% of fish overall to their original capture ... sites. Discrimination of otolith natal signatures using Al:Ca and Zn:Ca showed greater classification ...

   Meeting Document : WG-SAM-14/33 : Автор(ы): R. Tana, B.J. Hicks, C. Pilditch and S.M. Hanchet (New Zealand)

2. Development of a vessel safety checklist and debriefing protocol for use in SISO

   Abstract:  In accordance with the recommendations of the 2013 Panel Review of the CCAMLR Scheme of ... of SISO recommends the performance of a vessel safety check (see proposed Annex II in CCAMLR-XXXVI/25 ... ) prior to observer deployment, as well as the use of a form and protocol for debriefing observers to be ... approved by the Commission (proposed A(e bis) in CCAMLR-XXXVI/25).  This paper provides examples of vessel ...

   Meeting Document : CCAMLR-XXXVI/BG/16 : Автор(ы): Delegation of the USA

3. Proposed continuation of a multi-Member longline survey on Antarctic toothfish (Dissostichus mawsoni) in Statistical Subarea 48.6 in 2019/20 by Japan, South Africa and Spain

   assessments of the D.mawsoni stock in this subarea (FSA-18/34). The continuation of the three-member research ... proposal for 2019/20 season is presented to ensure continuity of previous research activities. Data and ... investigations about the population structure and various demographic parameters of Antarctic toothfish ... techniques, pop-up tags and genetic analysis will provide the basis for the development of spatial population ...

   Meeting Document : WG-SAM-2019/13 Rev. 1 : Автор(ы): Delegations of Japan, South Africa and Spain

4. Engaging ‘the crowd’ in citizen science and remote sensing to learn about habitat affinity of two Southern Ocean seals

   presence/absence patterns of the Weddell seal (Leptonychotes weddellii), and has recently been adapted for ... efficient method to screen large numbers of images (and hence area) for undertaking census counts of Weddell ... images of the pack ice acquired during October 2018 in the Weddell Sea to identify presence/absence of ... 852 VHR images, composed of a series of tiles called “maps”, across both campaigns. The circum ...

   Meeting Document : WG-EMM-2019/37 : Автор(ы): M.A. LaRue, D.G. Ainley, J. Pennycook, K. Stamatiou, M. Dozier, J. Saints, L. Sales, N. Nur, S. Stammerjohn and L. Barrington

5. Species profile of mackerel icefish (Champsocephalus gunnari)

   and became the target species of fisheries in many parts of the low-Antarctic from 1975 to 1990 ... . Exploitation has been limited to South Georgia and Heard and McDonald Islands since the second half of the 1990 ... ’s with annual catches of a few thousand tonnes in each of the two areas. Aspect of the biology and ... exploitation of the species have been summarized in Kock and Everson (2003) and Kock (2005). Additional ...

   Meeting Document : WG-FSA-07/12 : Автор(ы): K.-H. Kock (Germany) and I. Everson (UK)

6. On the problem of icefish (Champsocephalus gunnari) (Channichthyidae) and krill (Euphausia superba) interaction in the South Georgia area

   Abstract:  The interaction of icefish and krill in the South Georgia area has been analysed on the ... basis of the trawling, acoustic and juvenile fish surveys carried out by AtlantNIRO during 1986-2002 and ... the data of the national fishery. It is demonstrated that?.gunnari both at the early development ... stages and as adults utilize the pelagic forage resource, the bulk of which is constituted by krill. At ...

   Meeting Document : WG-FSA-04/41 : Автор(ы): S.M. Kasatkina and Zh.A. Frolkina (Russia)

7. Evaluating the impact of multi-year research catch limits on overfished toothfish populations

   Abstract:  In stocks that have been depleted by overfishing, the benefits of additional fisheries ... delaying the recovery of such stocks. Through simulating a Dissostichus eleginoides stock that has been ... subjected to varying levels of overfishing and research catches, this study show that stocks can take ... decades to recover even in the absence of fishing, and apparently low levels of research catches can ...

   Meeting Document : WG-FSA-10/42 Rev. 1 : Автор(ы): D.C. Welsford (Australia)

8. Effects of recruitment variability and natural mortality on Generalised Yield Model projections and the CCAMLR Decision Rules for Antarctic krill

   ;vector of recruitments" input option to simulate the population dynamics of krill in the Antarctic ... Peninsula region (Subarea 48.1) under various assumptions. The annual proportions of krill less than 36 mm ... in length to the total captured in AMLR net samples in four sampling regions of the Antarctic ... between 14 and 45%) and "high mortality" (M = 3, annual survival of 5%). CVs of either 0, 10 ...

   Meeting Document : WG-EMM-12/26 : Автор(ы): D. Kinzey, G. Watters and C. Reiss (USA)

9. Development of an algorithm designed to assess observer data quality and performance

   Abstract:  As part of the Secretariat task to ensure the quality and consistency of the data ... observers in their logbooks. A first version of the algorithm was tested on four randomly selected longline ... , as well as value inconsistencies through a limited set of logical tests. For each logbook inspected ... , a text report indicating the locations of faulty entries, a set of figures to display length and ...

   Meeting Document : WG-SAM-13/40 : Автор(ы): Secretariat

10. Comparison of two methods to assess fish losses due to depredation by killer whales and sperm whales on demersal longline

    combination of socio-economical, ecological and conservation issues. However, estimating the amount of ... indirect methods of assessment of depredated biomass over a 11-year period (from 2003 to 2013), both ... accounting for spatial variations of depredation levels. In the first method, we used fishing data from 6 525 ... longline sets to calculate the difference between Catch Per Unit Effort (CPUE) of non-depredated and ...

    Meeting Document : WG-FSA-14/10 : Автор(ы): N. Gasco, P. Tixier, G. Duhamel and C. Guinet (France)

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