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  1. IDENTIFYING PATTERNS IN DIET OF MACKEREL ICEFISH (CHAMPSOCEPHALUS GUNNARI) AT SOUTH GEORGIA USING BOOTSTRAPPED CONFIDENCE INTERVALS OF A DIETARY INDEX

    -2004) the proportion of krill in the diet, stomach fullness and fish condition (indicated by length ... was followed by a large reduction (> 80%) in the estimated annual biomass of C. gunnari the ... sp. and took smaller quantities of E. superba. In a season of poor krill availability (summer of 2003 ... -weight relationships) were significantly lower than in the other summer seasons. The poor krill season ...

    Meeting Document : WG-FSA-08/29 : Author(s): C.E. Main, M.A. Collins, R. Mitchell and M. Belchier (UK)

  2. Growth and maturation of Euphausia superba Dana in northern areas of its distribution range (with reference to South Georgia and Bouvet Island areas)

    maturation rates as well as the average minimal sizes of E.superba are appreciably higher in the former than ... South Georgia area as compared to Bouvet Island. The differences in the growth and maturation rates of ... in the latter area. This is attributed to milder climatic conditions and better food supply in the ... E.superba between these two areas persist with a change of climatic epochs. During the warmer climatic epoch ...

    Meeting Document : SC-CAMLR-VIII/BG/22 : Author(s): Delegation of USSR

  3. Composition of Leucocytes in Peripheral Blood of Antarctic Toothfish Dissostichus mawsoni (Nototheniidae)

    Abstract:  The aim of the work is to study the leukocyte composition in blood of deep-water fish ... species by the example of Antarctic toothfish Dissostichus mawsoni. Fish were caught in January–February ... ) with average mass 21.4 kg and length 114 cm. The composition of leukocytes in Antarctic toothfish is ... 2012 in the Ross Sea (Statistical Subarea 88.1) at depths from 690 to 1183 m from onboard “Yantar-31 ...

    Meeting Document : WG-EMM-14/P07 : Author(s): I.I. Gordeev, D.V. Mikryakov, L.V. Balabanova and V.R. Miktyakov

  4. Composition of leucocytes in peripheral blood of Antarctic toothfish Dissostichus mawsoni (Nototheniidae)

    Abstract:  The aim of the work is to study the leukocyte composition in blood of deep-water fish ... species by the example of Antarctic toothfish Dissostichus mawsoni. Fish were caught in January–February ... ) with average mass 21.4 kg and length 114 cm. The composition of leukocytes in Antarctic toothfish is ... 2012 in the Ross Sea (Statistical Subarea 88.1) at depths from 690 to 1183 m from onboard “Yantar-31 ...

    Meeting Document : WG-FSA-14/P01 : Author(s): I.I. Gordeev, D.V. Mikryakov, L.V. Balabanova and V.R. Miktyakov

  5. Models of Antarctic marine ecosystems in support of CCAMLR and IWC: background

    to the use of ecosystem models in CCAMLR and the IWC and a history of the developmental work in those ... CCAMLR and the IWC. Author(s):  Constable, A. Title:  Models of Antarctic marine ecosystems in support of ... is currently in draft form open to comment and is being developed to provide an introduction to the ... organisations. It also provides an outline of the nature of modelling for these purposes and the general issues ...

    Meeting Document : CCAMLR-IWC-WS-08/03 : Author(s): Constable, A.

  6. Feasibility of trawl surveys to estimate abundance of juvenile toothfish in Subarea 88.1

    average over the last three years, 63% of the seabed area from 0–600 m depth was not fishable in January ... % in 2002 to 89% in 2002. Less than 10% of the potential trawl survey area was fishable in all three ... Abstract:  This report presents results from a desktop study to determine the feasibility of ... and previous research cruises. The major limitation on a trawl survey in the Ross Sea is ice cover. On ...

    Meeting Document : WG-FSA-SAM-04/07 : Author(s): Wood, B.A., ODriscoll, R.L., Hanchet, S.M.

  7. INTERACTIONS OF PATAGONIAN TOOTHFISH FISHERIES WITH KILLER AND SPERM WHALES IN CROZET EXCLUSIVE ECONOMIC ZONE: AN ASSESSMENT OF DEPREDATION LEVELS AND INSIGHTS ON POSSIBLE MITIGATION SOLUTIONS

    belonging to four different pods were involved in 81.3% of the interaction events. We also estimated that a ... total of 64 sperm whales interacted with the fishery on the Crozet EEZ in 2008. Significant variations ... . Based on the analyse of killer whales movements in relation to fishing vessel, when facing depredation ... longline fishery is exposed to high levels of depredation by killer and sperm whales. In this context, this ...

    Meeting Document : WG-IMAF-09/12 : Author(s): P. Tixier, N. Gasco, G. Duhamel and C. Guinet (France)

  8. Spatial overlap of krill-dependent predators and krill fishery catches and a proposal for subdivision of catch limits in Subarea 48.1

    understanding of spatial overlap between predators and fishing activity. We provide estimates of the spatial ... in Subarea 48.1. In general, overlap of summer and winter foraging habitats with krill catches in ... during the winter period, especially in the Bransfield Strait. Across years, predator distributions ... might affect the distribution of fishing effort.  A comparison of CEMP parameters from two years with ...

    Meeting Document : WG-EMM-14/36 : Author(s): J.T. Hinke, M.E. Goebel (USA), M.M. Santos (Argentina), P.N. Trathan (UK), W.Z. Trivelpiece and G.M. Watters (USA)

  9. Characteristics of interannual variation in aggregation and diurnal vertical migration of Antarctic krill at South Georgia during winter

    average krill body length in winter. This could be the optimal behavior of krill to balance food intake ... Abstract:  We elucidated characteristics of interannual variability in density index, recruitment ... predictable fishing grounds occurred in the restricted areas throughout the study period. Main results are as ... predator performance were poor in the previous summer. Krill recruitment index at South Georgia suggested ...

    Meeting Document : WG-EMM-18/34 : Author(s): T. Ichii, Y. Mori, P.N. Trathan, K. Mahapatra, M. Okazaki, T. Hayashi and T. Okuda

  10. A comparative morphometric analysis of sagittal otoliths of three icefishes (Channichthyidae) in Antarctic waters

    Abstract:  In the present study a comparative morphometric analysis of sagittal otoliths was ... differences between the left and right sagittae in BSDs, a univariate and multivariate ANOVA and MANOVA were ... from the 20 harmonics analyzed were homoscedastic and normal, and showed very low level of correlation ... in the contour between both otolith pairs for each species (p<0.001). Similarly, EFS coefficients ...

    Meeting Document : WG-FSA-18/47 : Author(s): G. Plaza, C. Rodríguez-Valentino and P.M. Arana

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