Résultats de la recherche

1. Draft MPA Report for the South Orkney Islands, Subarea 48.2; Part of CCAMLR MPA Planning Domain 1, Western Peninsula – South Scotia Arc

   Abstract:  In this paper we provide a brief history that describes the development of management ... plans and research and monitoring plans for CCAMLR MPAs. We develop a worked example of the management ... the information necessary for CCAMLR’s planning purposes, including the identification of other ... develop spatial protection measures is through the appropriate combination of scientific data and ...

   Meeting Document : WG-EMM-13/10 : Auteur(s): P. Trathan and S. Grant (United Kingdom)

2. Congruent, decreasing trends of Gentoo Penguins and Crozet Shags at sub-Antarctic Marion Island suggest food limitation through common environmental forcing

   Abstract:  Numbers of Gentoo Penguins Pygoscelis papua and Crozet Shags Phalacrocorax [atriceps ... ] melanogenis breeding annually at Marion Island, one of South Africa’s Prince Edward Islands in the south-west ... -2000s were associated with improved breeding success. At a colony of Gentoo Penguins, breeding success ... was negatively correlated with the date of arrival of adults to breed. Gentoo Penguins and Crozet ...

   Meeting Document : WG-EMM-14/P09 Rev. 1 : Auteur(s): R.J.M. Crawford, B.M. Dyer, L. Upfold and A.B. Makhado

3. Preliminary report on SO-AntEco (South Orkneys – State of the Antarctic Ecosystem) benthic survey (JR15005) around the South Orkney Plateau (February–March 2016)

   collaboration with the Scientific Committee for Antarctic Research (SCAR) State of the Antarctic Ecosystem ... (AntEco) research programme, including scientists from 8 CCAMLR members. The main purpose of the voyage ... was to understand the distribution and composition of the benthic communities associated with ... Protected Area. The expedition used a range of scientific sampling gear and video and photographic equipment ...

   Meeting Document : WG-EMM-16/13 Rev. 1 : Auteur(s): H. Griffiths, S. Grant, K. Linse, P. Trathan and the SO-AntEco scientific team

4. Possible options for the future management of the Antarctic krill fishery in Subarea 48.2

   Abstract:  We review the state of ecological knowledge for Subarea 48.2 and suggest that the ... development of any new management approach based on ecological indicators is limited by the current level of ... possible framework that has the potential to provide the types of information required. We suggest that the ... necessary if the experimental framework is to have a high probability of success. The proposed framework ...

   Meeting Document : WG-EMM-16/18 : Auteur(s): P. Trathan, O.R. Godø and S. Hill

5. Population status of Ross Sea killer whales (Orcinus orca, Type C) in McMurdo Sound, Antarctica, based on photo-identification studies

   175 there annually. Despite high turnover of different whales between years, we used a Bayesian mark ... -recapture approach to identify a seasonal ‘resident’ population with an average annual abundance of 55 ... individuals resighted over 2-14 years. Contrary to recent reports that commercial overfishing of Antarctic ... with the average annual estimated number of deaths (= 2.4, 95% probability = 1.2-4) being balanced by ...

   Meeting Document : WG-EMM-16/50 : Auteur(s): R. Pitman, H. Fearnbach and J.W. Durban

6. Preliminary results on the distribution of fin whales on the northern Antarctic Peninsula

   Abstract:  Results presented here contribute to the currently poor knowledge of fin whales ... (Balaenoptera physalus) in Southern Ocean, based on preliminary results regarding the distribution of the ... species around the northern Antarctic Peninsula. We show a broad view of the sightings based on data ... total of 630 fin whale individuals were sighted within 287 groups that varied in size form 1 to 31 ...

   Meeting Document : WG-EMM-18/43 : Auteur(s): E. Seyboth, L. Dalla Rosa, G. Watters and E.R. Secchi

7. Methodical aspects of a large-scale international krill survey in 2019: comments and proposals

   Abstract:  Methodical aspects of a large-scale international survey in 2019 are discussed in the ... context of stated objectives. The main sources of uncertainty in the results of the 2019 survey are shown ... . Author(s):  S. Kasatkina Title:  Methodical aspects of a large-scale international krill survey in 2019 ...

   Meeting Document : WG-EMM-2019/55 : Auteur(s): S. Kasatkina

8. Time series of Antarctic krill estimates around the South Shetland Islands from 2013 to 2019

   Subarea 48.1 is submitted with accompanying description of the acoustic survey and data analysis ... . Distribution of Antarctic krill for the 2013/14 to 2015/16 and the 2017/18 to 2018/19 fishing seasons were ... mapped by the Chinese F/V Fu Rong Hai to understand the interannual variations of Antarctic krill around ... the South Shetland Islands, one of the major fishing ground for Antarctic krill in Area 48. Acoustic ...

   Meeting Document : SG-ASAM-2019/04 Rev. 1 : Auteur(s): X. Yu, X. Wang, X. Zhao, J. Zhang, G. Fan, Y. Ying and J. Zhu

9. 2007 assessment of the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity

   Abstract:  The ASPM assessment of the Prince Edward Islands toothfish resource by Brandão and ... updated to take account of further catch, GLM standardised CPUE and catch-at-length information that has ... 48.3 are used. The resource is estimated to be at about 37% of its average pre-exploitation level in ... terms of spawning biomass. It is suggested that it would be prudent to restrict annual legal catches to ...

   Meeting Document : WG-FSA-07/34 Rev. 1 : Auteur(s): A. Brandão and D.S. Butterworth (South Africa)

10. Spawning periods and locations of Champsocephalus gunnari in Subarea 48.3 (South Georgia and Shag Rocks): a review

    Abstract:  Analysis of recent commercial catch, research survey and larval data for mackerel ... evidence that spawning is protracted and occurs from January through to July. The majority of commercial ... fishing activities for this species take place to the northwest of South Georgia over 12 nautical miles ... unlikely to protect spawning aggregations of C. gunnari but could, inadvertently, increase the risk of ...

    Meeting Document : WG-FSA-07/55 : Auteur(s): S. Clarke, M. Belchier and M.A. Collins

Pages