Search results

1. UAV for monitoring environmental changes on King George Island (South Shetland Islands) Antarctica: preliminary study on wildlife disturbance

   Abstract:  The importance of Unmanned Aerial Vehicles (UAVs) in remote sensing is rapidly growing ... . However, knowledge about their potential impact on wildlife is scant, especially in the Antarctic, where ... they are a new tool used in ecological research and monitoring.    In this preliminary study we ... investigate potential effects of wildlife disturbance by UAVs. In austral summer 2014-2015 UAV overflights ...

   Meeting Document : WG-EMM-15/50 : Author(s): A. Kidawa, M. Korczak-Abshire, A. Zmarz, R. Storvold, M. Rodzewicz, K. Chwedorzewska, S-R. Karlsen and A. Znój (Poland)

2. Performance metrics to index the spatial coverage of mark-recapture data

   interpreting the biomass estimated from mark recapture data. In 2015, the Scientific Committee identified that ... measures of spatial overlap and potential bias in the development of tag-based biomass estimates are an ... measure of the potential bias in the biomass estimate calculated from non-homogenous spatial mark ... area, SSRUs 88.2H to illustrate its use. We found that the median tag spatial overlap statistic in 2012 ...

   Meeting Document : WG-SAM-16/13 : Author(s): C. Marsh, A. Dunn and S. Mormede

3. An update on the ageing of Antarctic toothfish, Dissostichus mawsoni, from East Antarctica and the Amundsen Sea

   and the other by thin sectioning, in order to assess the comparability of age estimates derived from ... vessel in Subarea 88.2 in the 2014-2015 season and in Division 58.4.1 in the 2015-2016 season, were aged ... available for use in the estimation of biological parameters and stock assessments of the respective ... sampling areas in East Antarctica and the Amundsen Sea. Author(s):  G. Nowara, B. Farmer, T. Barnes, P ...

   Meeting Document : WG-FSA-17/15 : Author(s): G. Nowara, B. Farmer, T. Barnes, P. Ziegler and D. Welsford

4. Results of study of the oogenesis characteristics of Antarctic toothfish (Dissostichus mawsoni Norman 1937) (Nototheniidae) from Subareas 88.1 and 88.2 (Ross Sea)

   mawsoni) reproductive system, caught in December-March, 2004-2005 by the longliner VOLNA in subareas 88.1 ... and 88.2 in the Ross Sea are presented. The morphological parameters, indices of gonads have been ... toothfish ovaries from the stages II to IV show a slow increase in oocyte diameter. It was shown that for ... % of total cell number. The oocytes in the ovaries of analyzed fish did not reach the maximum size ...

   Meeting Document : WG-FSA-07/49 : Author(s): S. V. Piyanova and A.F. Petrov (Russia)

5. Proposal to standardise the submission of meeting documents to working groups

   Committee, WG-EMM and WG-FSA (including ad hoc WG-IMAF). In doing so, the Secretariat noted some Working ... Group-specific differences in relation to: submission deadline; exception to the deadline; and approach ... to accepting revised documents. WG-EMM agreed that standardising the Working Groups’ guidelines in ... Secretariat’s work in preparing information and documents for meetings. Consequently, WG-EMM agreed to a ...

   Meeting Document : WG-FSA-05/15 : Author(s): Secretariat

6. Sounds like more krill

   Abstract:  Antarctic krill, Euphausia superba, comprise the foundation of the food-web in the ... Southern Ocean and are the target of a large fishery. Recently, the total abundance of krill in the Scotia ... Conservation of Antarctic Marine Living Resources (CCAMLR) to revise the precautionary catch level for krill in ... strength (TS). Presented here is a re-analysis of the CCAMLR 2000 data incorporating recent improvements in ...

   Meeting Document : WG-EMM-04/41 : Author(s): D.A. Demer and S.G. Conti (USA)

7. Climate change and precautionary spatial protection: ice shelves

   Abstract:  Regional climate change is now known to be well established in the Antarctic ... , particularly in the Antarctic Peninsula region. One of the most evident signs of climate change has been ice ... shelf collapse; overall, 87% of the Peninsula’s glaciers have retreated in recent decades. Ice shelf ... to return that were last present during the last interglacial, a warmer period than at present. In ...

   Meeting Document : WS-MPA-11/17 : Author(s): P.N. Trathan and S.M. Grant (UK)

8. Distribution and biology of grey notothen (Lepidonotothen squamifrons) around South Georgia and Shag Rocks (Southern Ocean) CCAMLR Subarea 48.3.

   regulations in 1989 have meant it is now only caught in sub-area 48.3 during research surveys. Data collected ... distribution, size, maturity, and diet. Distribution was patchy with aggregations in specific ‘hotspots’ to the ... dominated by salps/tunicates, but with ontogenetic and depth variations in prey composition. Enhanced ... knowledge of L. squamifrons in this region will be valuable in future research on habitat and foodweb ...

   Meeting Document : WG-FSA-12/34 : Author(s): S. Gregory, J. Brown and M. Belchier (United Kingdom)

9. CCAMLR protocol for krill biomass estimation

   the B 0 workshop held in La Jolla, USA, in May 2000 (SC-CAMLR-XIX, Annex 4, Appendix G). A number of ... changes in assessing krill target strength (TS) and identifying acoustic targets have been introduced via ... ; Conti and Demer, 2005) that led to the re-analysis of the CCAMLR-2000 survey at a workshop held in ... Cambridge, UK, in June 2010 (SC-CAMLR-XXIX, Annex 5). There remains some ambiguity to the interpretation of ...

   Meeting Document : SG-ASAM-16/02 : Author(s): S. Fielding, A. Cossio, M. Cox, C. Reiss and G. Skaret

10. Models of larvae dispersion of Antarctic toothfish (Dissostichus mawsoni)

    stock structure in the Ross Sea have parallels for populations in other regions of the Antarctic, and ... locations in the northern areas of Subarea 88.1 & 88.2 to further investigate the possible larval ... dispersal from spatially discrete spawning grounds in these Subareas. Further, we derive plausible spawning ... locations from Scientific Observer sampling of D. mawsoni in other ocean sectors to identify starting ...

    Meeting Document : WG-FSA-12/48 : Author(s): A. Dunn, G.J. Rickard, S.M. Hanchet and S.J. Parker (New Zealand)

Pages