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1. Ideal survey patterns: an example of using a simulated world

   Abstract:  This paper considers a class of survey patterns for a toothfish long lining fishery ... . These survey patterns are characterised by a minimum mutual separation distance and a shot selection ... selected or that locations are selected at random. The landscape and fishery are simulated in a spatially ... interest about the fished population? If and when can the catch/effort data be used as a measure of the ...

   Meeting Document : WG-FSA-01/75 : Author(s): I.R. Ball and A.J. Constable (Australia)

2. Preliminary aspects of a simulation model to be used for evaluating the experimental crab fishery

   Antarctic crab fishery. A simulation model is proposed for conducting this work. Length frequency and catch ... fishery simulation is spatially explicit, and the dynamics of crab abundance are described on a daily ... basis. The simulation includes advective and diffusive movement rates, a lagged Beverton-Holt stock ... recruitment relationship, and a model for catch that contains a random normal deviate. Finally, an algorithm ...

   Meeting Document : WG-FSA-94/26 : Author(s): G. Watters (USA)

3. A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997–98 to 2012–13

   with no trend. A standardised CPUE analysis in the Ross Sea fishery showed an increase to 2008 followed ... by a slight decline to 2013. Standardised CPUE indices in Subarea 88.2 showed a general decline from ... 2003 to 2013 in SSRU 882H, but a general increase from 2006 to 2013 in SSRUs 88.2C–G. However, these ... indices were very uncertain due primarily to the lack of a consistent set of vessels over time and may not ...

   Meeting Document : WG-FSA-13/48 : Author(s): S. Hanchet, S. Mormede and A. Dunn (New Zealand)

4. A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2009/10

   881H and 881I, with a reduced catch from 881K due to ice conditions. The catch limit in the north was ... 88.2E, but a slight decline in SSRU 882CDFG over the last two years. We carried out a more detailed ... characterisation of Patagonian toothfish catches for the first time. A total of 124 t of Patagonian toothfish has ... species identification be independently checked through examination of a subsample of otoliths from these ...

   Meeting Document : WG-FSA-10/23 : Author(s): S.M. Hanchet, M.L. Stevenson and A. Dunn (New Zealand)

5. A procedure for krill density estimation

   Abstract:  This paper is intended to provide a generalised example of a procedure for krill ... density estimation, based on a worked example from the Balleny Islands (WG-EMM-15/17).  Explicitly, this ... paper is not the CCAMLR krill density estimation procedure, but has been written as a discussion ... document for the 2016 SG-ASAM meeting. Author(s):  M.J. Cox, S. Fielding and A. Constable Title:  A ...

   Meeting Document : SG-ASAM-16/01 : Author(s): M.J. Cox, S. Fielding and A. Constable

6. Development of a spatially-explicit minimum realistic model for Antarctic toothfish (Dissostichus mawsoni) and its main prey (Macrouridae and Channichthyidae) in the Ross Sea

   Antarctic toothfish and its main prey, grenadiers (Macrouridae) and icefish (Channichthyidae), we develop a ... spatially explicit model using a predator-prey suitability model for the Ross Sea Region. We model the age ... fishing mortality on both prey species and that icefish is expected to show a larger increase in biomass ... through time than grenadiers. It also suggests that a prey-suitability function is more likely than a ...

   Meeting Document : WG-EMM-14/51 : Author(s): S. Mormede, M. Pinkerton, A. Dunn, S. Hanchet and S. Parker (New Zealand)

7. Adélie penguin diet: a pilot study directly comparing data from stomach flushing with faecal DNA analysis

   composition and mass. Analysing prey DNA in faeces may be a useful, less invasive, approach to complement ... existing diet monitoring. We undertook a pilot study to directly compare these two methods using Adélie ... /January) in 2014/15 and 2015/16. Each method produced a similar pattern of penguin diet, with a shift from ... almost exclusively krill in 2014/15 to a mixture of fish and krill in 2015/16. Stomach flushing allows ...

   Meeting Document : WG-EMM-18/29 : Author(s): B. Deagle, J. McInnes, L. Emmerson, M. Dunn, S. Adlard and C. Waluda

8. Towards a strategic framework for assessing uncertainty in ecosystem dynamics models: objectives are sensitive too

   of the precautionary catch limit for krill. Foosa might therefore be a suitable simulation platform ... for evaluating feedback management approaches. Although Foosa resembles a minimum realistic model, it ... . There is a global need to develop strategic frameworks for assessing uncertainty in ecosystem dynamics ... models. Such a framework could incorporate elements of the evaluation of Foosa, but it should also ...

   Meeting Document : WG-EMM-12/20 Rev. 1 : Author(s): S. Hill and J. Matthews (United Kingdom)

9. A distribution-free model of length-frequency distribution to inform fishery stratification for integrated assessments

   Abstract:  Length frequency distributions (LFD) of catch collected as a random sub-sample from ... /or gear specific selectivity. A distribution-free model of LFD is described which is fitted to the ... set of length quantiles L for a predetermined set of corresponding probabilities P (in this instance ... fish. The L s were modelled as a Gaussian response variable using a Generalised Additive Mixed Model ...

   Meeting Document : WG-SAM-13/18 : Author(s): S. Candy, P. Ziegler and D. Welsford (Australia)

10. Increasing abundance of Type A killer whales (Orcinus orca) in the coastal waters around the Antarctic Peninsula

    and we need to understand the impact on marine ecosystems. A diverse community of killer whales ... (Orcinus orca; Types B1, B2 and A) are important top predators around the AP, but there are currently no ... Antarctica. In contrast, less is known about the Type A killer whales that are more typical in appearance to ... killer whales sighted in other parts of the world.  Sightings of Type A around the AP have been ...

    Meeting Document : WG-EMM-17/49 : Author(s): H. Fearnbach, J.W. Durban, D.K. Ellifrit and R.L. Pitman

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