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Foraging and provisioning in Antarctic fur seals: interannual variability in time-energy budgets
seals have episodic bouts of suckling 0-3 days), alternating with foraging trips (3-10 days). Foraging ...
Meeting Document : WG-EMM-99/32 : Autor(es): I.L. Boyd (United Kingdom)
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Feasibility of trawl surveys to estimate abundance of juvenile toothfish in Subarea 88.1
–February because of ice. Ice cover varied greatly between years, with the untrawlable area ranging from 31 ... average over the last three years, 63% of the seabed area from 0–600 m depth was not fishable in January ... years. Author(s): Wood, B.A., ODriscoll, R.L., Hanchet, S.M. Title: Feasibility of trawl surveys to ...
Meeting Document : WG-FSA-SAM-04/07 : Autor(es): Wood, B.A., ODriscoll, R.L., Hanchet, S.M.
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Lead-radium dating provides a framework for coordinating age estimation of Patagonian toothfish (Dissostichus eleginoides) between fishing areas
estimates range from approximately 20 to more than 50 years. In this study, lead-radium dating provided ... valid ages for juvenile to older adult groups, which were consistent with the counting of otolith growth ... zones in transverse otolith sections, and longevity estimates exceeding 30 years. Lead-radium dating ... . 3.3 years was observed across estimated ages younger than 20 years. For the CAF, ages were ...
Meeting Document : WG-FSA-11/P01 : Autor(es): A.H. Andrews, J.R. Ashford, C.M. Brooks, K. Krusic-Golub, G. Duhamel, M. Belchier, C.C. Lundstrom and G.M. Cailliet
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A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997–98 to 2010–11
location of fishing together with the catch of Dissostichus spp. and bycatch species by year for the period ... Abstract: The exploratory fishery for Dissostichus spp. has now been operating for fifteen years ... in Subarea 88.1 and for ten years in Subarea 88.2. This report summarises the timing, depth, and ... 88.1C with the rest taken from SSRU 88.1B. The catch limit from the shelf was taken mainly from 881J ...
Meeting Document : WG-FSA-11/45 : Autor(es): M.L. Stevenson, S.M. Hanchet, S. Mormede and A. Dunn (New Zealand)
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Estimates of abundance of Dissostichus eleginoides and Champsocephalus gunnari from the random stratified trawl survey in the waters surrounding Heard Island in Division 58.5.2 for 2018
McDonald Island (HIMI) in Division 58.5.2 took place from the end of March to the end of April, with the ... with a new set of randomly selected station points. The catch of Dissostichus eleginoides (Patagonian ... survey area were close to the highest estimates for the past 10 years. For the managed by-catch species C ... . squamifrons has been low for the past 4 years. The 2018 biomass estimates for each of the three Bathyraja spp ...
Meeting Document : WG-FSA-18/55 : Autor(es): G. Nowara, T. Lamb and P. Ziegler
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RECRUITMENT AND BODY SIZE IN RELATION TO TEMPERATURE IN JUVENILE PATAGONIAN TOOTHFISH (DISSOSTICHUS ELEGINOIDES) AT SOUTH GEORGIA
inter-annually and was found to be inversely correlated with the sea surface temperature (SST ... and larvae were not significantly correlated with juvenile density. The mean length of 1+ fish ... attained after 13-15 months was higher in years of high juvenile abundance and was significantly inversely ... correlated with SST in the summer prior to adult spawning. Trends in toothfish recruitment variability ...
Meeting Document : WG-FSA-08/P02 : Autor(es): M. Belchier and M.A. Collins
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Inter-annual variability in krill density at South Georgia: 1997–2012
) interspersed with years (1999-2000, 2004, 2009-2010) of very low density (µ < 30 gm-2). Author(s): S ... resets ranged several orders of magnitude (0 to 10 000 gm-2) and its distribution was highly skewed with ... many zero observations. Within each survey the mean krill density was significantly correlated with the ... , mean density for the area) showed several years of moderate to high values (µ > 30 gm-2 ...
Meeting Document : WG-EMM-13/14 : Autor(es): S. Fielding, J.L Watkins, P. Trathan, P. Enderlein, C. Waluda, C. Goss, G. Stowasser, G. Tarling and E. Murphy (United Kingdom)
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Results from the 2019 annual acoustic krill monitoring off the South Orkney Islands
comparison with previous survey years and provide some context for the large scale survey estimate, we here ... surveys from 2011 to 2018. The distribution was similar to previous years with most krill along the shelf ... the second lowest on record, indicating a less patchy krill distribution than a typical year. Author ...
Meeting Document : WG-EMM-2019/69 : Autor(es): G. Skaret, B.A. Krafft, G. Macaulay, T. Knutsen and O.A. Bergstad
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East Antarctica Planning Domain MPA Planning Reference Document #1: Draft MPA Report Part 1 – the Planning Domain and Candidate MPAs
planning domain and candidate MPAs (WG-EMM-14/48, Sections 1, 2, and 3), Part 2- Description of the ... , 6, 7, and 8), and Part 3- Research and Monitoring (WG-EMM-14/48, Sections 1 and 9). This paper ... provides the first part, with the following sections: (1) Introduction, (2) Objectives for the planning ... domain, (3) Description of the planning domain, (4) Method for determining candidate MPAs, (5 ...
Meeting Document : SC-CAMLR-XXXIII/BG/38 : Autor(es): Delegations of Australia and France
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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
provides a summary of responses to the recommendations with references to the associated outputs in this ... survival and effective tag-detection rates (Figure 3, Table 3) Report on Milestone 2.2 of WG-FSA-17/18 Rev ... ’ (Appendix 1) Report on Milestone 2.3 of WG-FSA-17/18 Rev. 1 ‘Sharing of environmental data with SOOS ... for toothfish within research blocks or across SSRUs and Divisions’ (Appendix 3 and 4) This paper also ...
Meeting Document : WG-FSA-18/58 Rev. 1 : Autor(es): P. Yates and P. Ziegler