Résultats de la recherche

1. The effects of global climate variability in pup production of Antarctic fur seals

   range in scale from those that impact individuals to those that impact the entire food web. Climate ... -induced changes in the abundance of species in lower trophic levels can cascade up to apex predators by ... depressing vital rates. However, the characteristics and predictability of predator demographic responses ... remain largely unexplored. We investigated the delectability, limits, and nonlinearity of changes in ...

   Meeting Document : WG-EMM-06/P2 : Auteur(s): J. Forcada, P.N. Trathan, K. Reid and E.J. Murphy (United Kingdom)

2. About the fecundity of Patagonian toothfish (Dissostichus eleginoides) in Subarea 48.3 (around South Georgia)

   Abstract:  The absolute and relative fecundity of Patagonian toothfish inhabiting areas of South ... Georgia Island and Shag Rocks were studied. The absolute individual fecundity of toothfish in relation to ... the size of specimens ranged from 56,3 to 567.5 thousands of eggs, averaging 152,9 thousands of eggs ... 8.19 ± 1,73 thousands of eggs) per 1 kg of fish body weight. Our studies and the analysis of data ...

   Meeting Document : WG-FSA-98/13 : Auteur(s): M.M. Nevinsky and A.N. Kozlov (Russia)

3. DIRECT EFFECTS OF CLIMATE CHANGE ON THE ANTARCTIC KRILL FISHERY

   evidence of direct effects of the changing physical environment – the duration of sea ice cover- on the ... seasonal behaviour of the region’s largest fishery, that for Antarctic krill. Declining sea ice cover in ... the main krill fishing grounds has resulted in greater accessibility of krill stocks to the fishing ... EFFECTS OF CLIMATE CHANGE ON THE ANTARCTIC KRILL FISHERY Approval:  Approved ...

   Meeting Document : WG-EMM-09/P06 : Auteur(s): S. Kawaguchi, S. Nicol and A.J. Press

4. Short paper to CCAMLR on the ICED Southern Ocean food webs and scenarios workshop: ICED information paper for CCAMLR WG-EMM

   Abstract:  The ICED programme is investigating how climate change might impact Southern Ocean ... an academic paper detailing the outputs, which are summarised here. ICED recognises the key role for ... CCAMLR in improving the basis for future monitoring and management of Southern Ocean ecosystems, and ... encourages active two-way engagement between the scientific community and CCAMLR. Author(s):  R.D. Cavanagh ...

   Meeting Document : WG-EMM-14/07 : Auteur(s): R.D. Cavanagh, E.J. Murphy, S.L. Hill and N.M. Johnston (United Kingdom) (on behalf of the ICED workshop and ICED Scientific Steering Committee)

5. DETECTION OF VULNERABLE MARINE ECOSYSTEMS IN THE SOUTHERN SCOTIA ARC (CCAMLR SUBAREAS 48.1 AND 48.2) THROUGH RESEARCH BOTTOM TRAWL SAMPLING AND UNDERWATER IMAGERY

   17 areas off the northern Antarctic Peninsula and 11 areas off the South Orkney Islands (CCAMLR ... Subareas 48.1 and 48.2). These areas, which have been proposed for inclusion in the CCAMLR VME registry ... , were detected during the 2006 and 2009 U.S. Antarctic Marine Living Resources Program surveys. The VMEs ... ’ vs. ‘light’ VME indicator taxa with consequences on the proposed trigger, as well as the rationale ...

   Meeting Document : WG-EMM-09/32 : Auteur(s): S.J. Lockhart and C.D. Jones (USA)

6. Impacts of cetaceans on the structure of Southern Ocean food webs

   Abstract:  Here we present three scenarios that demonstrate how cetaceans may influence the ... structure and dynamics of the Southern Ocean food web. These should be considered in addition to several ... -predator removal are not a novel concept. While we acknowledge the correlative nature of our examples, we ... nonetheless contend that they indicate fruitful directions for current and future research in the Southern ...

   Meeting Document : WG-EMM-09/P04 : Auteur(s): D. Ainley, G. Ballard, L.K. Blight, S. Ackley, S.D. Emslie, A. Lescroël, S. Olmastroni, S.E. Townsend, C.T. Tynan, P. Wilson and E. Woehler

7. Age Determination of Notothenia gibberifrons from the South Shetland Islands, Antarctic Peninsula Subarea (Subarea 48.1)

   localities of the South Shetland Islands (Low I. and Potter Cove, 25 De Mayo I./King George). Samples were ... from the difficulty to differentiate false from annual checks in scales. Age determination by otolith ... cross sections proved to be the most reliable method. Mean length data at age presented here for Low I ... . specimens were compared with previous published values. This confirmed that fishes from the Antarctic ...

   Meeting Document : WG-FSA-88/15 : Auteur(s): E. Barrera-Oro (Argentina)

8. Development of the Patagonian toothfish (Dissostichus eleginoides) tagging program in Division 58.5.2, 1997–2014

   adjacent to Heard Island and the McDonald Islands (HIMI, CCAMLR Division 58.5.2) since 1998, with 27,679 ... toothfish tagged and released, and 4925 recaptures. The data derived from this program has been valuable in ... estimating key population parameters for toothfish in this region, and have been used in the 2014 stock ... ;  movement rates;  growth;  stock structure; and  estimation of q of the trawl surveys; However, due to the ...

   Meeting Document : WG-FSA-14/43 : Auteur(s): D.C. Welsford, C. Péron, P.E. Ziegler and T.D. Lamb (Australia)

9. Spatial and temporal patterns of sperm whale (Physeter macrocephalus) depredation on Australian longline vessels in the Patagonian toothfish (Dissostichus eleginoides) fishery at Heard Island and McDonald Islands (CCAMLR Division 58.5.2)

   ) and orcas (Orcinus orca) has been reported in nearly all of the Patagonian toothfish (Dissostichus ... eleginoides) longline fisheries in the Southern Ocean (Moir Clark and Agnew 2010, Tixier et al 2010, Soeffker ... and Tixier 2015, Söffker et al. 2015). The first reports of odontocete depredation in the Division ... 58.5.2 fishery date from 2011, and incidences have been reported in every season thereafter. The majority ...

   Meeting Document : WG-FSA-15/53 : Auteur(s): D.C. Welsford and R. Arangio (Australia)

10. Progress report on the Korean research fishing by longline fishery for Dissostichus spp. in Subarea 88.3 in 2015/16

    2016 in 2015/16 fishing season. The total number of days fished are 41 of 76 days stayed in the fishing ... grounds. The total catch of D. mawsoni was 106,241 kg with 5,227 individuals, and their CPUE recorded 0.19 ... both small and large individuals are believed to inhabit area 88.3. The maturity of D. mawsoni ... dominated that stage 1 and 2 had high proportion among the maturity stages during the survey period. To get ...

    Meeting Document : WG-SAM-16/29 : Auteur(s): Delegation of the Republic of Korea

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