Résultats de la recherche

1. Squeezed from both ends: Decline in Antarctic fur seals in the South Shetland Islands driven by both Top–down and Bottom–up processes

   provided as an indicator of bottom-up drivers and we contrast these with early season neonate mortality and ... .  Predation rate has increased 4% per year since 2002.  We discuss the relative roles of bottom-up and top ...

   Meeting Document : WG-EMM-14/39 : Auteur(s): M.E. Goebel and C.S. Reiss (USA)

2. 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 : Auteur(s): I.L. Boyd (United Kingdom)

3. 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 : Auteur(s): Wood, B.A., ODriscoll, R.L., Hanchet, S.M.

4. Lead-radium dating provides a framework for coordinating age estimation of Patagonian toothfish (Dissostichus eleginoides) between fishing areas

   valid ages for juvenile to older adult groups, which were consistent with the counting of otolith growth ... estimates range from approximately 20 to more than 50 years. In this study, lead-radium dating provided ... 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 : Auteur(s): A.H. Andrews, J.R. Ashford, C.M. Brooks, K. Krusic-Golub, G. Duhamel, M. Belchier, C.C. Lundstrom and G.M. Cailliet

5. 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 ... 1997–98 to 2010–11. During the 2010–11 fishing year most of the catch in Subarea 88.1 came from the ... 88.1C with the rest taken from SSRU 88.1B. The catch limit from the shelf was taken mainly from 881J ... Abstract:  The exploratory fishery for Dissostichus spp. has now been operating for fifteen years ...

   Meeting Document : WG-FSA-11/45 : Auteur(s): M.L. Stevenson, S.M. Hanchet, S. Mormede and A. Dunn (New Zealand)

6. 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 ... combined) were also two to three times greater than those of last year. Catches of skates were similar to ... survey area were close to the highest estimates for the past 10 years. For the managed by-catch species C ...

   Meeting Document : WG-FSA-18/55 : Auteur(s): G. Nowara, T. Lamb and P. Ziegler

7. RECRUITMENT AND BODY SIZE IN RELATION TO TEMPERATURE IN JUVENILE PATAGONIAN TOOTHFISH (DISSOSTICHUS ELEGINOIDES) AT SOUTH GEORGIA

   , South Atlantic. Data from 13 demersal trawl surveys conducted over a 20-year period were analysed ... 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 ... correlated with SST in the summer prior to adult spawning. Trends in toothfish recruitment variability ...

   Meeting Document : WG-FSA-08/P02 : Auteur(s): M. Belchier and M.A. Collins

8. 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 ... krill was examined using a 15 year time series of acoustic observations undertaken in the Western Core ... 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 ...

   Meeting Document : WG-EMM-13/14 : Auteur(s): S. Fielding, J.L Watkins, P. Trathan, P. Enderlein, C. Waluda, C. Goss, G. Stowasser, G. Tarling and E. Murphy (United Kingdom)

9. 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 : Auteur(s): G. Skaret, B.A. Krafft, G. Macaulay, T. Knutsen and O.A. Bergstad

10. East Antarctica Planning Domain MPA Planning Reference Document #1: Draft MPA Report Part 1 – the Planning Domain and Candidate MPAs

    provides the first part, with the following sections:  (1) Introduction, (2) Objectives for the planning ... 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 ... domain, (3) Description of the planning domain, (4) Method for determining candidate MPAs, (5 ...

    Meeting Document : SC-CAMLR-XXXIII/BG/38 : Auteur(s): Delegations of Australia and France

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