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1. Fishing for structure; can we describe normal patterns in toothfish fishing operations using catch and effort data?

   Abstract:  We describe the typical steps involved in demersal longline fishing operations for ... toothfish in CCAMLR fisheries and link those steps to the variables recorded as part of the CCAMLR catch and ... information using other associated vessel records. Other unusual values, although potentially in error, are ... and their use in identifying erroneous data. The analyses show that many of the useful metrics that ...

   Meeting Document : WG-FSA-16/36 : Autor(es): J.M. Fenaughty and K. Large

2. Metabarcoding analysis of the stomach contents of the Antarctic toothfish (Dissostichus mawsoni) collected in the Antarctic Ocean

   units [OTUs]) were obtained from 163 individuals in subarea 58.4, and 75,961 contigs (105 OTUs) from 164 ... fish in subarea 88.3. At 98 % sequence identity, species names were assigned to most OTUs in this study ... in this study, which included 14 fish species and 5 mollusks. More than 90 % of contigs belonged to ... additional 17 representative haplotypes in this study. Comparison with three previous morphological studies ...

   Meeting Document : WG-FSA-17/P03 : Autor(es): T.-H. Yoon, H.-E. Kang, S. R. Lee, J.-B. Lee, G. W. Baeck, H. Park and H.-W. Kim

3. What’s the catch? Profiling the risks and costs associated with marine protected areas and displaced fishing in the Scotia Sea

   of fishing effort from closed areas, which may result in new and unexpected consequences for both ... fisheries and the ecosystem. Understanding such outcomes is critical in the Southern Ocean, where MPAs are ... evaluated two MPA scenarios and associated displacements of the Antarctic krill fishery in the Scotia Sea by ... suggest ways to improve protection of seals and penguins in the Scotia Sea. Both scenarios could increase ...

   Meeting Document : WS-SM-18/P03 : Autor(es): E.S. Klein and G.M. Watters

4. Report on Dissostichus mawsoni exploratory fishery research in East Antarctica (Divisions 58.4.1 and 58.4.2) between the 2011/12 and 2017/18 fishing seasons

   the toothfish exploratory fishery in Divisions 58.4.1 and 58.4.2 between 2011/12 and 2017/18. Table 1 ... provides a summary of responses to the recommendations with references to the associated outputs in this ... paper or the new research plan (WG-FSA-18/59). In particular, this paper presents: Tag-overlap ... statistics at the scale of the research block (Figure 1) and the distribution of tags recaptured in research ...

   Meeting Document : WG-FSA-18/58 Rev. 1 : Autor(es): P. Yates and P. Ziegler

5. Exploration of CPUE standardisation variances in the Ross Sea (Subareas 88.1 and 88.2A South of 70°s) Antarctic toothfish (Dissostichus mawsoni) exploratory longline fishery

   fisheries without integrated assessments in the CPUE by seabed area method to estimate stock biomass in the ... effort should be used for catch rates in mixed longline fisheries, and (2) how do different parameters ... in the catch rate models were vessel, gear and bait, with vessels showing by far the largest effect ... as catch rates. To assist in future quality checking of data, we also recommend a new reporting field ...

   Meeting Document : WG-SAM-2019/25 : Autor(es): D. Maschette, S. Wotherspoon and P. Ziegler

6. A new approach to selecting Marine Protected Areas (MPAs) in the Southern Ocean

   difficulties in addressing multiple, and typically conflicting uses. The majority of extant Marine Protected ... Areas (MPAs) are in coastal or tropical regions within national jurisdiction. Conservation of high seas ... surrogates to assist in the identification of areas of high conservation value is one possible mechanism to ... potential use of seabirds as surrogates for marine biodiversity in the Indian sector of the Southern Ocean ...

   Meeting Document : WS-BSO-07/P3 : Autor(es): Harris, J., M. Haward, J. Jabour and E.J. Woehler

7. An update on conversion factors for toothfish in the Ross Sea (Subareas 88.1 and 88.2)

   between product weight & length frequency distribution in the exploratory fishery for Dissostichus spp ... . in sub-area 88.1 and more recently in sub-area 88.2. Author(s):  J.M. Fenaughty and N.W. McL. Smith ... (New Zealand) Title:  An update on conversion factors for toothfish in the Ross Sea (Subareas 88.1 and ...

   Meeting Document : WG-FSA-02/71 : Autor(es): J.M. Fenaughty and N.W. McL. Smith (New Zealand)

8. A study of UK and Russian surveys using acoustics to augment trawling methods in shelf waters off South Georgia (Subarea 48.3)

   Abstract:  In 2001/2002 Russian and UK vessels undertook surveys for icefish at South Georgia ... differences in the gear used and how much was due to natural spatial/temporal variability of the stock. The ... portion of icefish biomass was located in the water column. Thus the traditional approach of using bottom ... trawls to assess icefish standing stock has resulted in biased estimates below the true value: acoustic ...

   Meeting Document : WG-FSA-02/56 : Autor(es): S. Kasatkina, P. Gasyukov (Russia), C. Goss, I. Everson, M. Belchier, T. Marlow, A. North and M. Collins (United Kingdom)

9. Marine pollutants and fishing gear associated with seabirds at sub Antarctic Marion Island, 1996–1998: trends in relation to longline fishing activity

   Abstract:  Pollutants found in association with seabirds at subantarctic Marion Island for the ... toothfish in blastfreezers and 23 toothfish hooks were found. All the rope nooses, and 19 of the-books were ... found during the second year. This increase in fishing gear from 1996/97 to 1997/98 is interesting in ... Petrel, and a Subantarctic Skua) were found entangled in fishing gear, while five seabird carcasses ...

   Meeting Document : CCAMLR-XVII/BG/26 : Autor(es): Delegation of South Africa

10. LENGTH-BASED ASSESSMENT FOR MACKEREL ICEFISH (CHAMPSOCEPHALUS GUNNARI) IN SUB-AREA 48.3

    ) in sub‐area 48.3 employs the CMIX and GYM packages, which derives population numbers‐at‐age and ... accurate identification of age cohorts from the survey data. In this paper we describe a length‐based ... the survey data which, in conjunction with the bootstrapped survey biomass data, yields an estimate of ... methodology showed very good agreement in calculated yields for 2006, 2007 and 2009, and some differences for ...

    Meeting Document : WG-FSA-09/27 : Autor(es): R.M. Hillary (Australia), C.T.T. Edwards, R.E. Mitchel and D.J. Agnew (United Kingdom)

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