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Distribution of krill as a fraction of Antarctic zooplankton within the South Sandwich Islands area in summer 2000
Abstract: The paper covers the-results of an acoustic estimation of distribution for krill and ... non-krill zooplankton within the area of South Sandwich Islands that has been obtained with multy ... . Distribution of acoustic characteristics for krill and non-krill fractions of antarctic zooplankton has been ... compared. It has been showed that within the field locations occupied by waters of the Weddell Sea and ...
Meeting Document : WG-EMM-00/50 : Автор(ы): S.M. Kasatkina and A.P. Malyshko (Russia)
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THE ANALYSIS OF FEEDING ACTIVITY AND DIET COMPOSITION OF ANTARCTIC TOOTHFISH D. MAWSONI IN THE ROSS AND AMUNDSEN SEAS IN THE FISHING SEASON, 2006-2007
Abstract: The results of analysis of stomachs of Antarctic toothfish D. mawsoni caught by the ... December, 2006 to 3 March, 2007 are presented. The comparative analysis of diet composition of Antarctic ... toothfish in different small-scale research units (SSRU) of subareas 88.1 and 88.2 is given. The graphs of ... size composition of food objects of Antarctic toothfish and the same by-caught objects are shown ...
Meeting Document : WG-FSA-08/41 : Автор(ы): N.V. Kokorin (Russia)
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Natural mortality rates of the Antarctic krill Euphausia superba Dana in the Indian sector of the Southern Ocean
Abstract: Data on the size and age composition of Euphausia superba were collected in the ... Cooperation and Cosmonaut Seas from 1985 to 1990. The coefficients of instantaneous natural mortality of ... E.superba in the Indian sector of the Southern Ocean were calculated according to Alverson-Carney’s (1975 ... 0.59 and from 0.94 to 2.30, respectively. The estimation of the annual extinction rate of E. superba ...
Meeting Document : WG-KRILL-93/44 : Автор(ы): E.A. Pakhomov (Ukraine)
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An interpretation of the growth of the Adelie penguin rookery at Cape Royds, 1955-1990
Abstract: The population dynamics of the Cape Royds rookery were modelled by computer, in order ... to determine the probable causes of the dramatic increase since 1980 in the numbers of Adelie ... penguins, Pygoscelis adeliae, breeding in the Ross Sea region, Antarctica. Variations in the extent of sea ... and decreases adult mortality. The timing of the event is critical and rules out the cessation of ...
Meeting Document : WG-CEMP-92/21 : Автор(ы): N. Blackburn (Denmark), R.H. Taylor and P.R. Wilson (New Zealand)
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Effects of different harvesting strategies on the stock of Antarctic icefish Champsocephalus gunnari around South Georgia
Abstract: The effects of a number of harvesting strategies on the Antarctic icefish ... Champsocephalus gunnari have been simulated for a period of 30 years. These were- diffierent levels of constant ... fishing mortality (F0.1, Fmax, 2xFmax),- harvesting contantly at 50%F0.1 with an increase of F 3 or 6 ... years after a good recruitment,- pulse fishing at an interval of 3 years with no fishing in between;- a ...
Meeting Document : SC-CAMLR-VIII/BG/47 : Автор(ы): Delegation of Federal Republic of Germany
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The Use of Penguin Stomachal Contents for the Simultaneous Study of Prey and Predator Parameters
assumptions made in the analysis of data. Nested designs are proposed as the correct approach because lack of ... independence between krill found in the stomach of a given penguin prevents the pooling of krill lengths from ... highly significant linear regression between krill size and time was found. Full use of the information ... contained in stomachal contents requires the use of block sampling designs. Replicating samples of the same ...
Meeting Document : WG-CEMP-89/16 : Автор(ы): E. Marschoff and B. González (Argentina)
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Abundance and reproductive distribution of Pygoscelids sp. in the northern area of Danco Coast, Antarctic Peninsula
Abstract: Studies related to the abundance and reproductive distribution of marine birds have the ... potential to act as ecological indicators. The western Antarctic Peninsula is one of the three sites in the ... world with some of the clearest signals of climate warming. The aim of this study was to monitor the ... distribution and abundance of breeding populations of chinstrap penguin (Pygoscelis antarctica) and gentoo ...
Meeting Document : WG-EMM-12/58 : Автор(ы): M.M. Santos, E.F. Rombolá, D. González-Zevallos, M.A. Juáres, J. Negrete and N.R. Coria (Argentina)
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Investigation of potential biases in the assessment of Antarctic toothfish in the Ross Sea fishery using outputs from a spatially explicit operating model
this paper we investigate such potential biases in the assessment of Antarctic toothfish in the Ross ... -recapture data, and rely on the assumption that tagged and untagged fish have constant probabilities of ... recapture regardless of the spatial distribution of releases or subsequent fishing effort for recaptures ... that fishing effort for recaptures is distributed in proportion to the underlying abundance. Neither of ...
Meeting Document : WG-SAM-13/36 : Автор(ы): S. Mormede and A. Dunn (New Zealand)
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The 2013 annual random stratified trawl survey to estimate the abundance of Dissostichus eleginoides and Champsocephalus gunnari in the waters of Heard Island (Division 58.5.2)
(HIMI) was completed during April of 2013. The catches of D. eleginoides for 2013 were half that of 2012 ... times the long term average. Catches of Channichthys rhinoceratus were higher and those of ... take. The catch of invertebrates in the 2013 survey was 6 t, which was lower than the long term average ... . This year there was a large abundance of jellyfish (Cnidaria) which formed about half of the catch of ...
Meeting Document : WG-FSA-13/21 : Автор(ы): G.B. Nowara, T.D. Lamb and D.C. Welsford (Australia)
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An overview of the elasmobranch fish of the Southern Ocean
Abstract: This review summarises current knowledge of the elasmobranch fish occurring in the ... Antarctic and sub-Antarctic waters of the CCAMLR area. About 14–15 species of elasmobranch have been ... recorded, with skates (Rajiformes) the most speciose order. Two genera of skates are known (Amblyraja and ... Bathyraja), although the current taxonomic knowledge of some species or species-groups is incomplete. Five ...
Meeting Document : WG-FSA-13/28 : Автор(ы): J.R. Ellis, S.R. McCully, V.V. Laptikhovsky and R. Scott (United Kingdom)
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