Résultats de la recherche

1. Distribution, abundance and acoustic properties of Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea

   Abstract:  Antarctic silverfish (Pleuragramma antarcticum) is a key link between plankton and the ... community of top predators in the shelf waters of the Ross Sea. In spite of their abundance and important ... species. A combined trawl and acoustic survey of silverfish was carried out on the western Ross Sea shelf ... during the New Zealand International Polar Year Census of Antarctic Marine Life research voyage on R.V ...

   Meeting Document : WG-FSA-10/P04 : Auteur(s): R.L. O’Driscoll, G.J. Macaulay, S. Gauthier, M. Pinkerton and S. Hanchet

2. Intra-archipelago moult dispersion of southern elephant seals at the Prince Edward Islands, southern Indian Ocean

   ), 38 of which could be individually identified by resighting their tag numbers. The majority of the MI ... -tagged seals were yearlings or subadults, and all but one were hauled out at PEI for the annual moult ... . The attendance rate of the known individuals at their natal island during the annual moult was only 40 ... %, based on their resighting histories. This was significantly lower than the 77 ± 6% moult attendance rate ...

   Meeting Document : WG-EMM-10/P16 : Auteur(s): W.C. Oosthuizen, M.N. Bester, P.J.N. de Bruyn and G.J.G. Hofmeyr

3. Update on the Top Predator Alliance project, 2013–14 season: Killer whales

   Type C killer whales (TCKW), have been identified as the top predators most likely to be directly ... affected by the removal of Antarctic toothfish (Dissostichus mawsoni; ‘toothfish’) in the Ross Sea region ... .  However, extreme paucity of information about the diet of TCKW, and uncertainty regarding the degree of ... reliance on toothfish as a critical prey item, have limited our ability to (a) assess the risk posed by the ...

   Meeting Document : WG-EMM-14/52 : Auteur(s): R. Eisert, M.H. Pinkerton (New Zealand), L. Torres (USA), R.J.C. Currey, P.H. Ensor, E.N. Ovsyanikova, I.N. Visser (New Zealand) and O.T. Oftedal (USA)

4. Methodology for automated spatial sea ice summaries in the Southern Ocean

   performance in the Southern Ocean. Sea ice can limit access to fishing grounds, for both commercial fishing ... sea ice concentration data in the Southern Ocean, and relate it to data on commercial fishing vessel ... operations around the Antarctic continental margin. A spatial view is used to characterise the spatial ... characterise the inter-annual patterns within a target area. Both can be viewed relative to ice conditions ...

   Meeting Document : WG-FSA-14/54 : Auteur(s): S.J. Parker, S.D. Hoyle, J.M. Fenaughty and A. Kohout (New Zealand)

5. Updated status of Notothenia rossii, Gobionotothen gibberifrons and Notothenia coriiceps in inshore sites of the South Shetland Islands: results of a long-term monitoring program (1983–2016) at Potter Cove

   , to achieve a 33-year record, 1983-2016, to monitor changes in the prevalence of three species of ... consistent with those achieved from the most recent offshore bottom trawl research cruises in 2007 and 2012 ... around the South Shetland Islands: 1) a continuous increase in the abundance of N. rossii; 2) further ... decline in G. gibberifrons recruitment evidenced by the low proportions of juvenile fish; and 3) a high ...

   Meeting Document : WG-FSA-16/02 : Auteur(s): E. Barrera-Oro, E. Marschoff and D. Ainley

6. Impacts of rising sea temperature on krill increase risks for predators in the Scotia Sea

   Abstract:  Climate change is a threat to marine ecosystems and the services they provide, and ... reducing fishing pressure is one option for mitigating the overall consequences for marine biota. We used a ... minimally realistic ecosystem model to examine how projected effects of ocean warming on the growth of ... , penguins, seals, and fish) in the Scotia Sea. We also investigated the potential to mitigate depletion risk ...

   Meeting Document : WG-EMM-18/P02 : Auteur(s): E.S. Klein, S.L. Hill, J.T. Hinke, T. Phillips and G.M. Watters

7. Draft proposal for multi-Member research on the Dissostichus mawsoni exploratory fishery in East Antarctica (Divisions 58.4.1 and 58.4.2) from 2018/19 to 2021/22

   rules remain to be determined for these Divisions. WG-FSA-16/29 outlined the first multi-member ... toothfish exploratory fishery research plan up to 2017/18 for East Antarctica, which the Scientific ... Committee agreed was appropriate to achieve the research objectives (SC-CAMLR-XXXV, para. 3.244). Subsequent ... to the identification of vulnerable marine ecosystem (VME) indicator species (Maschette et al. 2017 ...

   Meeting Document : WG-SAM-18/17 : Auteur(s): Delegations of Australia, France, Japan, Republic of Korea and Spain

8. Revised proposal for a dedicated krill survey for CCAMLR Division 58.4.1 during 2018/19 season by the Japanese survey vessel, Kaiyo-maru

   carried out by Japanese research vessel, Kaiyo-maru. No krill biomass has been estimated in the Division ... of krill biomass to update B 0 in the division and (2) oceanographic observations in the area to ... detect long term changes if any. The krill survey (echosounder and RMT) and subsequent biomass estimation ... will follow the CCAMLR standard protocol. The survey is international oriented and a cumulative total ...

   Meeting Document : WG-EMM-18/17 : Auteur(s): H. Murase, K. Abe, R. Matsukura, H. Sasaki, T. Ichii and H. Morita

9. Evidence of Vulnerable Marine Ecosystems documented via submarine in the Antarctic Sound and Gerlache Strait (Subarea 48.1)

   Abstract:  In order to adequately achieve CCAMLR’s conservation objectives and preserve the ... biodiversity of the Southern Ocean, a variety of ecosystems must be protected. This holds especially true for ... the benthic communities of this region that are characteristically mosaic in their distributions. As ... in CCAMLR’s Report of the Workshop on Vulnerable Marine Ecosystems (E-SC-XXVIII-A10, 2009) and as ...

   Meeting Document : WG-EMM-18/35 : Auteur(s): S. Lockhart and J. Hocevar

10. CCAMLR process of risk assessment to minimise the effects of longline fishing mortality on seabirds

    Abstract:  We describe the process used in the fisheries management system of the Convention for ... the Conservation of Antarctic Marine Living Resources (CCAMLR) to minimise seabird bycatch, and the ... risk assessment methodology developed to assist this. We examine the progress of several Regional ... Fishery Management Organisations in taking steps to address seabird bycatch. CCAMLR has the most advanced ...

    Meeting Document : WG-FSA-07/P2 : Auteur(s): S.M. Waugh, G.B. Baker, R. Gales and J.P. Croxall (Mar. Pol., in press)

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