Resultados de la búsqueda
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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.
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Diseases and parasites of penguins
Abstract: The study of diseases in wild penguins is important for the identification of endemic ... diseases and the detection of exotic diseases should these occur. It is also important in the understanding ... of the degree to which disease may be expected to influence the results of biological studies ... of disease particularly if it is at the sub clinical level. We present here a compilation of diseases ...
Meeting Document : WG-CEMP-94/35 : Autor(es): J. Clarke and K. Kerry (Australia)
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Investigating emigration in stock assessment models of Antarctic toothfish (Dissostichus mawsoni) in Subarea 88.2 SSRUs 88.2C–H
Abstract: In 2013, the Scientific Committee of CCAMLR could not achieve consensus on a stock ... the recaptures of tagged fish seen in the SSRU 88.2H fishery. The patterns showed a sharp decay rate ... of a cohort of tagged fish with few being recaptured after more than 3 years at liberty, a steepening ... of the decay rate over time, and a trend for increasing proportions of tagged fish caught over time ...
Meeting Document : WG-FSA-14/56 : Autor(es): S. Mormede, A. Dunn and S.M. Hanchet (New Zealand)
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Proposal to continue participation in the second year of the joint CCAMLR research survey to collect spatially stratified longline and bathymetric data in 88.2_A and 88.2_B in 2015/16
Abstract: Toothfish in SSRUs 882.A–B are currently managed as part of the Ross Sea region stock ... the management across all of the region. Recognising this requirement, the Scientific Committee ... endorsed two years of spatially stratified longline surveys in the northern region of SSRUs 88.2A–B (SC ... established to map and sample the fishable areas of SSRUs 88.2 A–B north of 66° S latitude. Following its ...
Meeting Document : WG-SAM-15/32 : Autor(es): Delegation of the United Kingdom
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Data on feeding and food objects of southern minke whales
Abstract: Presented research on feeding and the dietary structure by species of minke whales ... conducted in all four seasons. There have been no noticeable increase of the population size of large whales ... over the years after the cessation of whaling. The role of a short and profitable from the energy point ... of view trophic chain «phytoplankton- krill- baleen whales», which is of main interest due to the ...
Meeting Document : SC-CAMLR-XXVI/BG/25 Rev. 1 : Autor(es): Delegation of Ukraine
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The role of fish in the Antarctic marine food web: differences between inshore and offshore waters in the southern Scotia Arc and west Antarctic Peninsula
Abstract: The role of fish in the Antarctic food web in inshore and offshore waters is analysed ... taking as an example the coastal marine communities of the southern Scotia Arc (South Orkney Islands and ... South Shetland Islands) and the west Antarctic Peninsula. Inshore, the ecological role of demersal fish ... is more important than that of krill. There, demersal fish are major consumers of benthos and also ...
Meeting Document : WG-FSA-02/6 : Autor(es): E. Barrera-Oro (Argentina)
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Preliminary standardised CPUE analysis of the New Zealand toothfish fishery in Subarea 88.1 from 1997/98 to 2001/02
Abstract: This report provides the first analysis of standardised catch per unit of effort (CPUE ... ), and included a number of areas that had been fished for only one season. The second (main-ground ... main area of the fishery which had been consistently fished over most seasons. For the all-ground ... analysis, variables area, season, length of line, soaktime, latitude and month in season entered the model ...
Meeting Document : WG-FSA-02/41 : Autor(es): R.G. Blackwell and S.M. Hanchet (New Zealand)