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1. COMPARING CEMP INDICES TO INFORM FEEDBACK MANAGEMENT OF THE ANTARCTIC KRILL FISHERY

   to adjust activity of the Antarctic krill fishery based on the state of krill-dependent predators is ... a recognized goal of the CCAMLR. We suggest that progress toward a feedback management approach can ... population can be assessed by measuring trends in the difference between the observed states of a “treatment ... ” and a “control” population. As the states of these monitored populations change relative to each other ...

   Meeting Document : WG-EMM-11/25 : Autor(es): J.T. Hinke and G.M. Watters (USA)

2. A spatial multi-species operating model of the Antarctic Peninsula krill fishery and its impacts on land-breeding

   Abstract:  An updated version of the Spatial Multi-species Operating Model (SMOM) of krill ... advice regarding the subdivision of the precautionary catch limit for krill among 15 small-scale ... management units (SSMUs) in the Scotia Sea, to reduce the potential impact of fishing on land-based predators ... penguin and seal predators; and 3) Addition of an alternative movement model based on the results from the ...

   Meeting Document : WG-SAM-07/12 : Autor(es): É.E. Plagányi and D.S. Butterworth (South Africa)

3. A statistical method for analysing the extent of IUU fishing in CCAMLR waters: application to Subarea 48.3

   Abstract:  1. This paper describes a new method for estimating IUU catch of fish and birds. It ... account of both “seen” and “unseen” IUU fishing through a simulation model to arrive statistically ... rigorous estimates and confidence intervals of fish and bird catch by IUU vessels. This method has not been ... extension to other regions of the Antarctic. 2. Of the sources of information on IUU fishing, Fishery ...

   Meeting Document : WG-FSA-02/4 : Autor(es): D.J. Agnew and G.P. Kirkwood (United Kingdom)

4. Relationships of Antarctic krill (Euphausia superba Dana) variability with westerlies fluctuations and ozone depletion in the Antarctic Peninsula area

   Abstract:  The assessment of environmental processes controlling variability of Antarctic krill ... variability of krill recruitment and stock density with hypothesised environmental factors. We demonstrated ... meaning strong westerly winds coincided with good levels of krill recruitment in 1981182 (austral summer ... season), 1987/88 and 1990/91, while the years of extremely low values meaning weak westerly winds ...

   Meeting Document : WS-AREA 48-98/5 : Autor(es): M. Naganobu, K. Kutsuwada, Y. Sasai and S. Taguchi (Japan)

5. Histopathology of Antarctic krill, Euphausia superba, bearing black spots

   Abstract:  Small black spots have been noticed on the cephalothorax of Antarctic krill, Euphausia ... superba, since January, 2001. To study the nature of the black spots, the krill were sampled in the winter ... of 2003, 2006, and 2007 in the South Georgia region, the Antarctic Ocean. Histological observations ... revealed that the black spots were melanized nodules that were composed of hemocytes surrounding either ...

   Meeting Document : WG-EMM-08/P09 : Autor(es): S. Miwa, T. Kamaishi, T. Matsuyama, T. Hayashi and M. Naganobu

6. Size variations associated with abundance changes in juvenile Notothenia rossii observed at Potter Cove, South Shetland Islands, since the end of the fishery in the area

   Abstract:  Samp1es of fjord fish of the species N. rossii and N. neglecta collected at Potter Cove ... mean sizes of pre-recruit N. rossii was clearly observed along the whole sampling period. This was ... interpreted as a consequence of a significant reduction in the influx of the youngest age classes into inshore ... waters followed by the departure of the older (and more abundant) specimens offshore. These changes are ...

   Meeting Document : WG-FSA-91/13 : Autor(es): E. Marschoff and E. Barrera-Oro (Argentina)

7. Results of the groundfish survey carried out in CCAMLR Subarea 48.3 in January 2010

   vessel. Catch-weighted length frequencies of mackerel icefish indicated that although 3+ sized fish ... mean biomass of 52,329 tonnes was estimated for mackerel icefish, with a lower 1-sided 95% CL of 24,334 ... and low availability of krill to mackerel icefish in the area (evidenced by dietary analysis) in 2009 ... , this increase in biomass was unexpected. The importance of krill in the mackerel icefish diets was ...

   Meeting Document : WG-FSA-10/38 : Autor(es): R.E. Mitchell, M. Belchier, S. Gregory, L. Kenny, J. Nelson, J. Brown and L. Feathersone (UK)

8. The spawning dynamics of Patagonian toothfish in the Australian EEZ at Heard Island and the McDonald Islands and their importance to spawning activity across the Kerguelen Plateau

   industry conducted a joint project to study the reproductive dynamics of Patagonian toothfish (Dissostichus ... available for 12 563 individuals. The histology of male and female gonads was also analysed from specimens ... latitudinal range along the deep slope of the Kerguelen Plateau. A comparison of macroscopic staging of gonad ... resting mature animals (as confirmed by the presence of post-ovulatory follicles) from first maturing ...

   Meeting Document : WG-FSA-12/P08 : Autor(es): D.C. Welsford, J. McIvor, S.G. Candy and G.B. Nowara

9. Comparison of catches for toothfish in 58.4.1, 58.4.2, and 48.6 from vessels with anomalous CPUE

   Abstract:  An accurate history of catch is an important input into the assessment of toothfish ... stocks, and uncertainty or bias in the amount of catch from an area must be taken into account in the ... assessment of a stock. In 2013, Korea held a workshop on the anomalous CPUE data reported from some Korean ... vessels in data-poor exploratory fisheries (Delegation of Korea 2013). That paper requested that the data ...

   Meeting Document : WG-FSA-13/57 Rev. 1 : Autor(es): A. Dunn, B.R. Sharp (New Zealand), C. Darby (United Kingdom) and O.R. Godø (Norway)

10. Revised assessment models for Patagonian toothfish in research block C of Division 58.4.4, Ob & Lena Banks for the years 1989/1990 to 2012/13

    Abstract:  I made five sensitive runs of CASAL models for stock status assessments of Dissostichus ... eleginoides in research block C in Division 58.4.4 b on the assumption of constant year class strength and no ... addition, proportion mature for ages was calculated on the assumption of logistic curve fitting for the ... proportion of maturity index with stage 2+ and incorporated in the models. The median MPD estimates of the ...

    Meeting Document : WG-SAM-14/15 : Autor(es): K. Taki (Japan)

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