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1. Diet composition of Antarctic toothfish caught in Divisions 58.4.1 and 58.4.2 in 2014/15 inferred from fatty acid stable isotope analyses

   Abstract:  To identify the important prey items for pre-recruit Antarctic toothfish in the SSRUs ... fishing vessel. In the previous studies, similarities in total FA compositions and the FA profiles in ... muscle tissue of Antarctic toothfish, bycatch specimen and icefish in the stomachs indicated a trophic ... connection between the toothfish and icefish. In this study, similarities in the δ13C values δ15N values of ...

   Meeting Document : WG-EMM-16/31 : Autor(es): Delegation of the Republic of Korea

2. Krill CPUE standardisation and comparison with acoustic data based on data collected from Chinese fishing vessels in Subarea 48.1

   Abstract:  The usability of CPUE data as Antarctic krill abundance index was a widely discussed ... issue. Many studies suggested the CPUE data should be standardized before using as abundance/biomass ... index. We tried to develop general additive models to standardize the CPUE data collected from Chinese ... fishing vessels during 2009/10-2013/14 seasons. We also compared the CPUE data and acoustic data collected ...

   Meeting Document : WG-EMM-17/41 : Autor(es): Y. Ying, X. Wang, J. Zhu and X. Zhao

3. Abundance and richness of key Antarctic seafloor fauna correlates with modelled food availability

   Abstract:  Most seafloor communities at depths below the photosynthesis zone rely on food that ... sinks through the water column. However, the nature and strength of this pelagic–benthic coupling and ... its influence on the structure and diversity of seafloor communities is unclear, especially around ... Antarctica where ecological data are sparse. Here we show that the strength of pelagic–benthic coupling along ...

   Meeting Document : WS-SM-18/P01 : Autor(es): J. Jansen, N.A. Hill, P.K. Dunstan, J. McKinlay, M.D. Sumner, A.L. Post, M.P. Eléaume, L.K. Armand, J.P. Warncock, B.K. Galton-Fenzi and C.R. Johnson

4. CCAMLR scientific observation: tasks, priorities and time budget

   Abstract:  The workload of the tasks required in the CCAMLR Observer manual is assessed. The total ... time needed for the minimum amount of daily routine tasks was well above the capacity that an observer ... to undertake. The manual must be structured as its entirety so that the observer, only by following ... instructions in the manual, can produce the report and logbook data which is collected systematically and ...

   Meeting Document : WG-EMM-07/26 : Autor(es): S. Kawaguchi (Australia)

5. Near-shore acoustic surveys for Antarctic krill at South Georgia, January 2004

   Abstract:  Dual frequency (120 and 38 kHz) acoustic surveys were conducted around the Willis ... Islands and off the Barff Peninsula, South Georgia, from a 59 foot yacht in January 2004. The purpose of ... the surveys was to determine krill density near shore, in regions that have not traditionally been ... provisioning chicks ashore were foraging. Despite its relatively small size, the yacht (Golden Fleece) proved ...

   Meeting Document : WG-EMM-04/35 : Autor(es): A.S. Brierley, P.N. Trathan, J. Poncet and A. Morton (United Kingdom)

6. Observer notes (Subarea 88.1)

   bottom long-line sets in Subarea 88.1 from 15.12.03 till 10.03.04 are presented. For the first time ... Antarctic toothfish was found in long-line catches above seamounts of the Pacific-Antarctic Ridge to the ... cannot lead to their intbreeding as its gonads were at the early development stages in that period ... . Antarctic toothfish spawning takes place above the mountains of the Pacific-Antarctic Ridge, located ...

   Meeting Document : WG-FSA-04/89 : Autor(es): V.G. Prutko (Ukraine)

7. Fish and invertebrate by-catch from Australian fisheries for D. eleginoides and C. gunnari in Division 58.5.2

   Islands in CCAMLR Statistical Division 58.5.2. These comprise a trawl and a longline fishery for the ... gunnari. This paper presents available by-catch information for the three fisheries including estimates of ... . Preliminary results from a rajid tagging program are also presented. Total removals of by-catch in the trawl ... caught in the D. eleginoides trawl fishery and 107 tonnes in the C. gunnari trawl fishery. These values ...

   Meeting Document : WG-FSA-03/73 : Autor(es): E.M. van Wijk and R. Williams (Australia)

8. Uncertainty in echosounder calibrations

   Abstract:  Calibration of echo sounders for fish stock assessment are commonly performed using the ... standard sphere method (Johannesson and Mitson, 1983; Simmonds et al., 1984). To determine the accuracy of ... the method, direct measurements of target strength (TS) were made of three standard spheres (Copper ... (Cu)- 23.0 mm and tungsten carbide (WC)- 33.0 mm and 38.1 mm). At the best case range of 5 m, the TS ...

   Meeting Document : WG-EMM-96/40 : Autor(es): Soule, M.A., Demer, D.A.

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

   candidate feedback management approaches for the Antarctic krill fishery in the southern Drake Passage and ... Scotia Sea. The Foosa ecosystem dynamics model was developed to perform spatially resolved, stochastic ... simulations of krill, its predators and fishery. It has been used to provide advice on the spatial allocation ... of the precautionary catch limit for krill. Foosa might therefore be a suitable simulation platform ...

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

10. Mitigation of Macrourus by-catch in research block 58.4.1_6 and estimation of Macrourus biomass and sustainable catch in Divisions 58.4.1 and 58.4.2

    Abstract:  Macrourus spp. are the major by-catch species in the exploratory toothfish fishery in ... ) avoidance, ii) mitigation and iii) the setting of sustainable by-catch limits if mortality is not ... preventable (SC-CAMLR-XXII, paragraph 5.230). Here, we undertake a risk assessment of the effects of ... block 58.4.1_6 in particular. We investigate the distribution of D. mawsoni and Macrourus spp. catch ...

    Meeting Document : WG-FSA-17/23 : Autor(es): D. Maschette, P. Burch, P. Yates and P. Ziegler

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