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RECENT TRENDS IN NUMBERS OF FOUR SPECIES OF PENGUINS AT THE PRINCE EDWARD ISLANDS
and southern rockhopper penguin E. chrysocome. In December 2008 it was estimated that some 65 000 ... pairs of king penguins were incubating eggs at Marion Island, the larger of the two islands in the group ... in numbers of king penguin chicks that survived to the end of the winter period, but there was ... considerable fluctuation in chick production in the 1990s. It was roughly estimated that on average 88% of king ...
Meeting Document : WG-EMM-10/P1 : Автор(ы): R.J.M. Crawford, P.A. Whittington, L. Upfold, P.G. Ryan, S.L. Petersen, B.M. Dyer and J. Cooper
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Oxygen and carbon stable isotopes in otoliths record spatial isolation of Patagonian toothfish (Dissostichus eleginoides)
Abstract: Strong contrasts in ambient isotope ratios and in diet suggest stable isotopes in the ... distinguish South American-caught fish from those taken in the Antarctic. Values of δ18O and δ13C predicted ... prior evidence of population isolation. Values of δ18O in the otoliths reflected ambient values as well ... as seawater temperature: low values in Patagonian Shelf fish were consistent with exposure to ...
Meeting Document : WG-FSA-08/P03 : Автор(ы): J.R. Ashford and C.M. Jones
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Recent information relevant to squid resources in the Convention Area
Abstract: In 1995 there was increased interest in fishing for Martialia hyadesi in waters ... adjacent to the Convention Area, with a catch in excess of 12,000 tonnes. Recent improvements in processing ... techniques for this squid also enhance commercial prospects and may promote interest in fishing in Convention ... waters. Although regulations for fishing of squid in nearby waters provide a useful model framework ...
Meeting Document : SC-CAMLR-XIV/BG/22 Rev. 1 : Автор(ы): Delegation of the United Kingdom
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The annual random stratified trawl survey to estimate the abundance of Dissostichus eleginoides and Champsocephalus gunnari in the Heard Island region (Division 58.5.2) for 2012
Abstract: The annual random stratified trawl survey at HIMI was completed in March to May of 2012 ... . A codend liner, usually in place for the entire survey, was used only in the icefish strata, Gunnari ... Ridge, Plateau Southeast and Plateau West, and in a repeat of the hauls in Ground B. Catches in this ... RSTS were generally high in comparison with previous years, with the total fish catch being twice as ...
Meeting Document : WG-FSA-12/25 : Автор(ы): G.B. Nowara and T. Lamb (Australia)
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Research plan for the 2015/16 exploratory longline fishery of Dissostichus spp. in Division 58.4.1
began in 2013 in data-poor fisheries. In the present report, catch, effort and biological data recorded ... by all effective vessels were analyzed for the improvement of stock assessment in the research blocks ... . Based on the result, the next three-season (2016-18) research plan in Division 58.4.1 is also presented ... reference area sizes. Although no toothfish fishery data along the shelf area in austral autumn – winter was ...
Meeting Document : WG-SAM-15/05 : Автор(ы): Delegation of Japan
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The toothfish fishery and tagging program in the Amundsen Sea region (SSRUs 882C–H) to 2016/17
Abstract: Fishing in the Amundsen Sea region (SSRUs 882C–H) has been managed through a research ... to carry out a reliable stock assessment of the toothfish stock in that area. In this report, we ... precautionary. In the 2016 and 2017 seasons, a total of 19 tagged fish (excluding within season recaptures) were ... recaptured in the research blocks in the South Amundsen Sea region, confirming the utility of the research ...
Meeting Document : WG-FSA-17/39 : Автор(ы): S. Parker and S. Mormede
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Measurements of differences in the target strength of Antarctic krill (Euphausia superba) swarms at 38 and 120 kHz
Abstract: Differences in the target strength of adult Antarctic krill (Euphausia Superba) at 38 ... and 120 kHz have been inferred from differences in the mean back-scattering strength of swarms ... simultaneously insonified at these two frequencies in studies off the South Orkneys and Elephant Island in March ... 1990. Krill in these areas varied in total length between 36 and 60mm. Backscattering strengths at 120 ...
Meeting Document : WG-KRILL-90/28 : Автор(ы): I. Hampton (South Africa)
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Characterisation of skate catches in the Ross Sea region
Abstract: The toothfish fishery in the Ross Sea region (CCAMLR Subareas 881 and 882) has been ... less). In this paper we summarise the current available fisheries and biological information for skates ... in the Ross Sea Region, including the data collected in the two “Year of the Skate” fishing seasons ... in 2008/09 and 2009/10. The composition of the skate catch by species is uncertain; it is estimated ...
Meeting Document : WG-FSA-10/25 : Автор(ы): S. Mormede and A. Dunn (New Zealand)
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Analysis of maturity of Antarctic toothfish in the Amundsen Sea
(Dissostichus mawsoni) reproductive system, caught by the longliner in the Amundsen Sea in February 2006 and ... (57.1%) in 2006 and IV stages of maturity (83.3 %) in 2007 and testes – the IV stage (55%) in 2007. In ... 2007 the oocytes in the ovaries of 16.7% investigated fish has reached the completed maturation and ... definitive size 6484·10-6m, therefore, Antarctic toothfish was ready to spawn in the Amundsen Sea in March ...
Meeting Document : WG-FSA-10/50 : Автор(ы): S.V. Piyanova and A.F. Petrov (Russia)
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Predicting changes in the Antarctic krill Euphausia superba population at South Georgia
Abstract: Variability in the Southern Ocean is frequently reflected in changes in the abundance ... nature and consequences of changes in krill population dynamics that accompany l1uctuations in its ... the abundance and population structure of krill in 1998 and the consequences for predators. Consistent ... with model predictions, in 1998 there was a serial change in krill population structure, low krill ...
Meeting Document : WG-EMM-99/37 : Автор(ы): K. Reid, K.E. Barlow, J.P. Croxall and R.I. Taylor (UnitedKingdom)
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