Resultados de la búsqueda
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Report of the UK groundfish survey at South Georgia (CCAMLR Subarea 48.3) in January 2015
Abstract: In January 2015 the UK undertook a bottom trawl survey of CCAMLR sub-Area 48.3 on the ... FV New Polar. A total of 77 random and representative hauls were completed giving good geographic ... coverage and encompassing depths between 108 and 352m. The overall biomass of mackerel icefish ... (Champsocephalus gunnari) was calculated at 48,543 tonnes with a lower 1-sided 95% interval estimate of 29,300t ...
Meeting Document : WG-FSA-15/30 : Autor(es): M. Belchier, S. Gregory, N. Fallon, J. McKenna, S. Hill, M. Soffker (United Kingdom), P. Lafite (South Africa) and L. Featherstone (United Kingdom)
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Atlas of top predators from French Southern Territories in the Southern Indian Ocean
. Indeed, seabirds and seals are considered as good indicators of changes in ecosystems at differential ... mitigation actions and restricted protection of the sole coastal areas, are insufficient, especially for the ... seabirds and marine mammals forage. The first stage of most conservation planning is to identify areas that ... identify areas of high species richness (hotspots), focusing on threat level (endangered species). This ...
Meeting Document : WG-EMM-16/42 : Autor(es): K. Delord, C. Barbraud, C.-A. Bost, Y. Cherel,C. Guinet and H. Weimerskirch
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Candidate baseline data for ecosystem indicators in the Ross Sea region. Part B: Discussion of the data
facilitate assessment of the degree to which the RSRMPA achieves its objectives. The Plan also identifies a ... set of indicators that, when observed or quantified, provide baseline data for key species and ... characterize the status of the marine ecosystem in the Ross Sea region. These baselines provide benchmarks from ... which to assess change and evaluate the performance of the MPA. Here, and in an accompanying working ...
Meeting Document : SC-CAMLR-XXXVII/BG/13 : Autor(es): Delegation of the USA
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Fatty acids composition of spiny icefish Chaenodraco wilsoni in the Bransfield Strait and its implication to local food availability
Abstract: Spiny icefish (Chaenodraco wilsoni) is an important species of crocodile icefish native ... to the high-Antarctic of the Southern Ocean, including the Bransfield Strait. The water mass in the ... , more saline waters of the Weddell Sea over the broad continental shelf near d′Urville and Joinville ... Islands. The local food availability of C. wilsoni may be influenced by those waters. The fatty acids can ...
Meeting Document : WG-FSA-18/76 : Autor(es): Q.Y. Yang, G.P. Zhu and K. Reid
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Analysis of scientific observer data from the Saga Sea 2006–2007
Sea from June 2006 to June 2007. This paper presents an initial analysis of the krill and fish bycatch ... Abstract: UK observers were present during all fishing operations of the Norwegian flagged Saga ... sampled. Although a reasonably large number of continuous and conventional trawls were undertaken, the ... distribution of these trawls in time and space was not random. The vessel tended to fish with one trawl type ...
Meeting Document : WG-EMM-07/16 : Autor(es): P. Orr, J. Hooper, D. Agnew, J. Roe, G. Doherty and A. Pryor
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Towards a seabird mortality risk assessment: distribution of seabirds in the WCPFC Convention Area and potential overlap with fisheries
Abstract: This paper reviews the distribution of seabird species with the WCPFC Area. From a ... Concern. This paper, having identified key risks, is intended to assist with the development of advice on ... review of the distributions of 99 species of albatross and petrel, 16 species of albatross and 60 species ... of petrel occur within the area of the WCPFC, and are potentially vulnerable to fisheries bycatch ...
Meeting Document : WG-FSA-06/30 : Autor(es): S. Waugh (New Zealand)
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Update of the integrated stock assessment for the Patagonian toothfish (Dissostichus eleginoides) for the Heard and McDonald Islands (Division 58.5.2)
Abstract: The integrated assessment of Patagonian toothfish, Dissostichus eleginoides, for the ... inclusion of random stratified trawl survey (RSTS) abundance-at-age for 2010 and 2011 and conversion of 2008 ... and 2009 RSTS abundance-at-length to abundance-at-age. This was possible due to the large number of ... years. A series of standardised longline CPUE data from one of the longline grounds (or subfishery ...
Meeting Document : WG-FSA-11/24 : Autor(es): S.G. Candy and D.C. Welsford (Australia)
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DISTRIBUTION AND ABUNDANCE OF ANTARCTIC TOOTHFISH IN THE ROSS SEA
Abstract: This report is a synthesis of mostly existing information which has been compiled for ... the purposes of addressing items on the FEMA 2 agenda. It summarises the management of the fishery ... continental shelf of the Ross Sea itself, because this is the area where any ecosystem effects related to ... predators of toothfish are most likely to occur. Of the total catch from the fishery to date of almost 19 ...
Meeting Document : WG-EMM-09/40 : Autor(es): S.M. Hanchet, S. Mormede and A. Dunn (New Zealand)
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MODELING PREDATION BY TRANSIENT LEOPARD SEALS FOR AN ECOSYSTEM-BASED MANAGEMENT OF SOUTHERN OCEAN FISHERIES
Abstract: Correctly quantifying the impacts of rare apex marine predators is essential to ... prey vulnerability. We combined these uncertainties to evaluate the predatory impact of transient ... leopard seals on a community of mesopredators (seals and penguins) and their prey at South Georgia, and ... -selective predation and prey vulnerability. A population of 104 (90–125) leopard seals, of which 64%were ...
Meeting Document : WG-EMM-09/P08 : Autor(es): J. Forcada, D. Malone, J.A. Royle and I.J. Staniland
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Uncertainty in acoustic surveys of Antarctic krill
Abstract: Studied were four primary sources of uncertainty in krill density estimates from ... bias was investigated by comparing the theoretical and actual target strength (TS) values of four ... different standard spheres with the results of a calibration by self-reciprocity (Demer and Hewitt ... , submitted). Combining the results of these experiments, the accuracy and precision of a system calibration ...
Meeting Document : WG-EMM-95/72 : Autor(es): Demer, D.A.