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1. Factors that may influence the accuracy of abundance estimates from CCAMLR tag-recapture programs for Dissostichus spp. and best practice for addressing bias

   Paper Title:  Factors that may influence the accuracy of abundance estimates from CCAMLR tag ... to identify processes that may introduce bias into abundance estimates derived from tag-recapture ... programs. The methods that have been used in CCAMLR tag-recapture programs to mitigate such biases, or to ... , where it occurs, post-release depredation rates are a priority for new assessments that use tag ... to biases in tag-based abundance estimates, and methods that may be implemented to address these ... that may affect any tagging program or may need to be addressed when estimating stock abundance based ... the total population in a closed and fully mixed population will be equal to the ratio of tagged ... with respect to M, R and C. Where these assumptions are not met, parameter estimates may be biased ...

   Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 63–72 : Auteur(s): Welsford, D.C. and P.E. Ziegler

2. The biology and ecology of mackerel icefish, Champsocephalus gunnari – an Antarctic fish species that lack haemoglobin

   exploited since the beginning of the 1970's with reported annual catches exceeding 50- 100 000 tomes in ... some years. Champsocephalus gunnari has many characteristics typical of Antarctic fish species with ... ability to reproduce at an early age coupled with a comparatively high fecundity and growth performance ... may mean that the stocks of C. gunnari in Sub-Antarctic waters have far more resilience and a greater ...

   Meeting Document : WG-FSA-96/24 : Auteur(s): Everson, I., Kock, K.-H.

3. DATA QUALITY ASSESSMENT IN CCAMLR: REQUIREMENTS FOR MINIMUM INTEGRITY TESTING TO ENSURE THAT DATA ARE FIT FOR PURPOSE

   upon the different requirements for the data, together with a recognition that, however thorough a ... validation exercise the data are exposed to, there will always be some data that require some additional ... review/reconciliation procedure with Members to ensure that CCAMLR data are consistent and current with ... important for prioritizing the work of the Secretariat in data quality assessment, and also in ensuring that ...

   Meeting Document : WG-SAM-09/05 : Auteur(s): Secretariat

4. DEVELOPING FOUR PLAUSIBLE PARAMETERISATIONS OF FOOSA (A SO-CALLED REFERENCE SET OF PARAMETERISATIONS) BY CONDITIONING THE MODEL ON A CALENDAR OF EVENTS THAT DESCRIBES CHANGES IN THE ABUNDANCES OF KRILL AND THEIR PREDATORS IN THE SCOTIA SEA

   with the agreed calendar, as specified by the WG-SAM, that describes changes in the abundances of krill ... these four parameterizations that might be useful for synthesizing the output of future modeling efforts ... Abstract:  We tuned four parameterizations of Foosa to provide predictions that are consistent ... parameterizations cover a combinatorial framework that considers krill movement (or lack thereof) and the shape of a ...

   Meeting Document : WG-EMM-08/13 : Auteur(s): G.M. Watters, J.T. Hinke (USA) and S. Hill (United Kingdom)

5. Long-term observations from Antarctica demonstrate that mismatched scales of fisheries management and predator–prey interaction lead to erroneous conclusions about precaution

   penguin performance are predicted to be below the long-term average with a probability of 0.77. Catch ... Abstract:  Low catch limits for forage species are often considered to be precautionary measures ... that can help conserve marine predators. Uncertainty about the impacts of fisheries removals on ... hierarchical model and 30+ years of monitoring data, we show that expected penguin performance was reduced when ...

   Meeting Document : WG-EMM-2019/11 : Auteur(s): G.M. Watters, J.T. Hinke and C.S. Reiss

6. Estimating future krill catches that meet the CCAMLR and alternative decision rules for FAO Subarea 48.1 using an integrated assessment model

   spawning biomass instead of to projections with no fishing. Catch levels that meet the various decision ... Abstract:  An integrated assessment model for Antarctic krill in FAO Subarea 48.1 that ... incorporates catch and length-composition data from the krill fishery with biomass indices and length ... krill population biology and the fishery during the period with data (1976 to 2014 in these models) and ...

   Meeting Document : WG-EMM-15/51 Rev. 1 : Auteur(s): D. Kinzey, G.M. Watters and C.S. Reiss (USA)

7. A proposal for compiling information, assessments and science that underpin established CCAMLR Marine Protected Areas and provide the basis for ongoing management, science and review: an MPA Report

   of the Commission.  We propose that an MPA Report be developed, following the designation of an MPA ... structure for an MPA report be consistent with the style of a Fishery Report, and include the following ... measure for a CCAMLR Marine Protected Area and indicates a number of elements where advice may be given by ... the Scientific Committee.  We propose that a method is needed for consolidating and maintaining that ...

   Meeting Document : WG-EMM-12/49 : Auteur(s): A. Constable, M. Guest, D. Welsford (Australia), P. Koubbi (France) and L. Weragoda (Australia)

8. Support to CCAMLR to identify and deter illegal, unreported and unregulated (IUU) fishing activities that undermine the objective of the CAMLR Convention – Interim Report 2019

   deter illegal, unreported and unregulated (IUU) fishing activities that undermine the objective of the ... submitted by INTERPOL in relation to activities between 1 January 2019 to 31 August 2019, including future ... deter illegal, unreported and unregulated (IUU) fishing activities that undermine the objective of the ...

   Meeting Document : CCAMLR-38/BG/05 : Auteur(s): INTERPOL and CCAMLR Secretariat

9. Towards a new method for age determination in Antarctic krill, and evidence that krill shrink under natural conditions

   Abstract:  Laboratory studies have shown that Antarctic krill Euphausia superba shrink if ... maintained in conditions of low food availability. Recent studies have also demonstrated that E. superba ... individuals may be shrinking in the field during winter. If krill shrink during the winter, conclusions ... reached by length-frequency analysis may be unreliable. In this study, the correlation between the body ...

   Meeting Document : WG-Krill-94/17 : Auteur(s): W. de la Mare (Australia)

10. Existing initiatives that provide an extensive framework for research and monitoring in East Antarctica

    Abstract:  Research and monitoring (RM) plans need to be developed for marine protected areas in ... considered a number of issues relating to the development of RM plans, including that guidance is needed from ... advice from WG-EMM that RM Plans needed to relate to the requirements for an MPA and that the research ... and monitoring should be achievable in practice. The proposal for the East Antarctica Representative ...

    Meeting Document : SC-CAMLR-IM-I/BG/01 : Auteur(s): Delegations of Australia, France and the European Union

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