Search results

1. Detection of systematic change in Adélie penguin foraging trip duration: consequences of high inter-annual variability and usefulness of ice cover as a covariate

   Abstract:  Power analyses were carried out using a 12 year data set from the Béchervaise Island ... change were investigated: 1) change occurring at a constant rate after a certain point in time and 2) a ... the latter form could be more quickly and powerfully detected at a range of effect sizes than could ... three foraging trips each were required to detect a 35% step increase in foraging trip duration after ...

   Meeting Document : WG-EMM-05/22 : Author(s): J. Clarke, C. Southwell and L.M. Emmerson (Australia)

2. A possible framework in which to consider plausible models of the Antarctic marine ecosystem for evaluating krill management procedures

   Abstract:  CCAMLR requires an assessment method for recommending a subdivision of the krill catch ... agreed workplan for developing a management procedure includes the evaluation of candidate management ... procedures in a simulation framework, using plausible models of the Antarctic marine ecosystem. This paper ... develops a framework for erecting such models. It is divided into three main parts, addressing different ...

   Meeting Document : WG-EMM-04/24 : Author(s): A. Constable (Australia)

3. A PROPOSED MANAGEMENT PROCEDURE FOR THE TOOTHFISH (Dissostichus eleginoides) RESOURCE IN THE PRINCE EDWARD ISLANDS VICINITY

   Pessimistic” and a “Pessimistic” current status for the toothfish resource in the Prince Edward Islands region ... . These models are used for trials of a candidate Management Procedure (MP) which could provide future TAC ... length of the catches made. A specific MP, with its associated control parameter values, is proposed for ... economic viability of the fishery, the choice of control parameter values focused primarily on a reasonable ...

   Meeting Document : WG-SAM-08/11 : Author(s): A. Brandão and D.S. Butterworth (South Africa)

4. Research plan for the exploratory longline fishery for Dissostichus spp. in 2012/13 in Division 58.4.3a (this is a revision of WG-SAM-12/14)

   Abstract:  In 2011/2012, a French vessel conducted its first exploratory fishing campaign in ... division 58.4.3a. In order to achieve a robust stock assessment that would provide advice on catch limits ... years. This paper is a revised proposal of WG-SAM-12/14 encouraged by 2012 SAM working group for a ... detailed catch, effort and biological data with a nearly same survey design as in the 2012. It will include ...

   Meeting Document : WG-FSA-12/29 : Author(s): A. Rélot-Stirnemann (France)

5. A new bathymetric compilation for the South Orkney Islands, Antarctic Peninsula (49°–39°W to 64°–59°S): insights into the glacial development of the continental shelf

   Abstract:  We present a new, high resolution (300 m) bathymetric grid of the South Orkney Islands ... and surrounding continental shelf, northeast of the Antarctic Peninsula. The new grid, derived from a ... information for a range of scientific applications and end users including oceanographers, glacial modellers ... drained a former ice cap centred on the South Orkney Islands. During previous glacial periods, grounded ...

   Meeting Document : WG-EMM-14/P01 : Author(s): W.A. Dickens, A.G.C. Graham, J.A. Smith, J.A. Dowdeswell, R.D. Larter, C.-D. Hillenbrand, P.N. Trathan, J.E. Arndt and G. Kuhn

6. Elaborating a representative system of marine protected areas in eastern Antarctica, south of 60°S

   conservation of marine biodiversity by 2012. A representative system of marine protected areas (RSMPA) will be ... one that (i) provides a spatial estate of the smallest area sufficient to satisfy the principles of ... will be increased if it (iv) can act as a source for maintaining biodiversity in areas outside of the ... system, (v) can act as a reference for natural variability and change, and (vi) provides for ecosystem ...

   Meeting Document : WG-EMM-10/26 : Author(s): A.J. Constable, B. Raymond, S. Doust, D. Welsford and K. Martin-Smith (Australia)

7. Regionalisation of the Southern Ocean: a statistical framework

   . Regionalisation algorithms attempt to partition a broad spatial area into discrete spatial regions, each with ... . In this paper, we demonstrate a method developed for a regionalisation of the southern Indian Ocean ... develop a bioregionalisation of its Convention Area. This paper describes the steps and issues in ... undertaking a regionalisation and presents a statistical method for achieving a regionalisation of the ...

   Meeting Document : WG-EMM-06/37 : Author(s): B. Raymond and A. Constable (Australia)

8. A two-fleet ASPM assessment of the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity

   Butterworth (2004) that permitted annual fluctuations about a deterministic stock-recruitment relationship is ... become available for the years 2004 and 2005. The assessment is also generalised to allow for a second ... fleet to accommodate data from a pot fishery that has been in operation since November 2004. Results ... obtained show a much greater selectivity for larger toothfish for the pot than for the longline fishery – a ...

   Meeting Document : WG-FSA-05/58 : Author(s): A. Brandão and D.S. Butterworth (South Africa)

9. Proposal for a research plan for the exploratory longline fishery for Dissostichus spp. in 2014/15 in Division 58.4.4

   , Shinsei maru No. 3, has conducted research fishing in accordance with a research plan submitted under CM ... order to participate in the tagging program and achieve a robust stock assessment. The aim is to provide ... advice on a catch limit according to CCAMLR decision rules and allow an earlier decision to reopen this ... area. This paper presents a proposal for a research plan for 2014/2015. For SSRU C, further ...

   Meeting Document : WG-SAM-14/18 : Author(s): Delegation of France

10. A system-of-equations approach to modeling age structured fish populations: the case of Alaskan red king crab, Paralithodes camtschaticus

    Abstract:  This paper presents a simultaneous system-of-equations approach to modeling age ... -structured populations using trawl survey age/size frequency data. The analysis builds upon a Ricker spawner ... -recruit structure and provides a cohort-based estimation method that retains the underlying dynamic ... properties of a delay-difference model. The framework shares a common spawner-recruit function across age ...

    Meeting Document : WS-CRAB-93/23 : Author(s): J.A. Greenberg, S.C. Matulich and R.C. Mittelhammer (USA)

Pages