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1. IMPROVING ESTIMATES OF ADÉLIE PENGUIN BREEDING POPULATION SIZE: DEVELOPING FACTORS TO ADJUST ONE-OFF POPULATION COUNTS FOR AVAILABILITY BIAS

   times within a breeding season to minimise bias in estimates of the breeding population has long been ... Abstract:  It is widely recognised that the interpretation of counts of penguin populations at ... recognised, the considerable work in obtaining one-off counts for population surveys have not been matched by ... the collection of adjustment data. This was recognised at the recent Predator Survey workshop, where ...

   Meeting Document : WG-EMM-09/38 : Автор(ы): C. Southwell, J. McKinlay, L. Emmerson, R. Trebilco and K. Newbery (Australia)

2. Comparison of age readings by two otolith preparation techniques and readers

   and in interpretation of the break and burn preparation method to warrant further coordination and ... in interpretation of otolith banding patterns. Results suggest broad agreement in ages determined by ... . This experiment highlights the importance of monitoring and comparing ageing protocols within and ... between fish ageing programmes. The criteria for determining similar age interpretation used here (mean ...

   Meeting Document : WG-FSA-14/53 : Автор(ы): S.J. Parker (New Zealand), A.F. Petrov (Russia), C.P. Sutton (New Zealand) and E.N. Kuznetsova (Russia)

3. Review of research into seabird–fishery interactions

   formulated by the review editorial panel (submitted separately to WG-FSA), to assist in the development of ... research plans for managing seabird mortalities and the effect of these on seabird population viability in ... (post 1990), and in relation to direct effects of fishing through fisheries mortalities was considered ... . The research was divided into five main groupings: a) estimation of bycatch; b) population estimation ...

   Meeting Document : WG-FSA-05/42 : Автор(ы): R. Alderman (New Zealand)

4. Effects of orientation on acoustic scattering from Antarctic krill at 120 kHz

   ) were made at a frequency of 120 kHz in a chilled insulated tank at the Long Marine Laboratory in Santa ... Cruz, CA. Individual animals were suspended in front of the transducers, were only loosely constrained ... of the krill based on the video images and was applied to five of them, giving their target strengths ... the need for better in situ behavioral data to properly interpret acoustic survey results. A generic E ...

   Meeting Document : WG-EMM-99/42 : Автор(ы): D.E. McGehee (USA), R.L. O’Driscoll (New Zealand) and L.V. Martin Traykovski (USA)

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

   target identification, and could facilitate the inclusion of acoustic data in the assessment of mackerel ... echograms and analysis of differences in mean volume backscattering strengths (S V; dB re 1 m-1) measured at ... ), mean distance from the seabed (m) and geographic positional data were most important to the accuracy of ... 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. Analysis of observer coverage for Japanese krill fishing vessels

   1995 to 2008. Based on the multistage sampling theory, we derived the equation of variance in four ... coefficients of variation (CV) caused by the shifts in coverage at different sampling stages. Vessel coverage ... explore proper allocation of scientific observers on Japanese krill fishing vessels using the data from ... stage cluster sampling units (i.e., vessel, year, subarea, and haul), and examined changes in the ...

   Meeting Document : WG-SAM-10/17 : Автор(ы): T. Okuda, M. Kiyota and H. Okamura (Japan)

7. MODELING PREDATION BY TRANSIENT LEOPARD SEALS FOR AN ECOSYSTEM-BASED MANAGEMENT OF SOUTHERN OCEAN FISHERIES

   is important to integrate the predator needs as natural mortality of its prey in models to set prey ... precautionary interpretation in the context of an ecosystem-based management. Author(s):  J. Forcada, D. Malone ... Abstract:  Correctly quantifying the impacts of rare apex marine predators is essential to ... species and their dependent predators. This requires modelling the uncertainty in such processes as ...

   Meeting Document : WG-EMM-09/P08 : Автор(ы): J. Forcada, D. Malone, J.A. Royle and I.J. Staniland

8. Foraging dynamics of macaroni penguins (Eudyptes chrysolophus) at South Georgia during brood-guard

   determine how they ranged from their colonies during the early part of their breeding season at a time when ... they are constrained to return to their chick on a near-daily basis. The principal objectives of this ... front, not all birds in the region focused on such areas as some birds foraged in other oceanographic ... contexts. The results from this study highlight the complexity of foraging dynamics for colonially nesting ...

   Meeting Document : WG-EMM-06/P4 : Автор(ы): P.N. Trathan, C. Green, J. Tanton, H. Peat, J. Poncet and A. Morton (United Kingdom)

9. Variability and predictability of Antarctic krill swarm structure

   Abstract:  Swarming is a fundamental part of the life of Euphausia superba, yet we still know very ... little about what drives the considerable variability in swarm shape, size and biomass. We examined ... swarms across the Scotia Sea in January and February 2003 using a Simrad EK60 (38 kHz, 120 kHz ... greater. Further sub-divisions of these types identified small and standard swarms within the type 1 group ...

   Meeting Document : WG-EMM-10/P10 : Автор(ы): G.A.Tarling, T. Klevjer, S. Fielding, J. Watkins, A. Atkinson, E. Murphy, R. Korb, M. Whitehouse and R. Leaper

10. Improving CCAMLR’s monitoring and control of transhipments

    CCAMLR members with a strong resource to help address current gaps in the monitoring of transshipments ... compliance issues discussed in SCIC, CCAMLR considered proposed revisions to existing measures to improve the ... monitoring and control of transshipments in 2014 [1], 2015 [2], and 2016 [3]. Despite robust consideration ... .  The United States looks forward to reviewing the report’s findings and, with due consideration of the ...

    Meeting Document : CCAMLR-XXXVI/BG/17 : Автор(ы): Delegation of the USA

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