Resultados de la búsqueda

1. Genetic structuring of Patagonian toothfish populations in the southwest Atlantic Ocean: the effect of the Antarctic Polar Front and deep-water troughs as barriers to genetic exchange

   species with potential for high dispersal are of great interest, not only from an evolutionary standpoint ... differentiation among populations of the Patagonian toothfish around the Southern Ocean, indicating breakdown of ... structuring through analysis of microsatellite loci and restriction fragment length poymorphism (RFLP) of the ... mitochondrial ND2 gene and control region of the toothfish population in the SW Atlantic, allowing examination ...

   Meeting Document : WG-FSA-04/21 : Autor(es): P.W. Shaw, A.I. Arkhipkin and H. Al-Khairulla (United Kingdom)

2. Observations of demersal fish, benthic communities and seafloor composition of the Southern Ocean Atlantic sector from the ICEFISH 2004 cruise

   Abstract:  A multi-disciplinary research cruise in the Atlantic sector of the Southern Ocean was ... conducted during the 2004 austral winter as part of the International Collaborative Expedition to collect ... included demersal finfish, benthic invertebrates, and information of seafloor composition. The objectives ... of the cruise included Antarctic fish and invertebrate biochemical, molecular and physiological ...

   Meeting Document : WG-FSA-04/61 : Autor(es): C.D. Jones, S.J. Lockhart and D.F. Doolittle (USA)

3. Post-fledging and winter migration of Adélie penguins (Pygoscelis adeliae) in the Mawson region of east Antarctica

   were satellite-tracked using the Argos system during the winters of 1995-97 and 1998 respectively. Six ... tracked for 32 days. All fledglings travelled northward initially, then westward along the edge of the ... fast-ice or in the pack-ice. Fledglings had travelled between 536 and 1931 km to the west of their ... October 1998, following completion of their annual moult at Bechérvaise Island. Instruments were factory ...

   Meeting Document : WG-EMM-02/47 : Autor(es): J. Clarke and K. Kerry (Australia), C. Fowler (USA), R. Lawless, S. Eberhard and R. Murphy (Australia)

4. Influence of sampling protocol on diet determination of gentoo penguins, Pygoscelis papua and Antarctic fur seals, Arctocephalus gazella

   Abstract:  The influence of two sampling protocols on diet determination of two marine predators ... . The collection of diet samples on three occasions over a two week period was compared with collecting ... in the mass of food recovered from penguins were found but this was attributed to the mass of penguin ... significant determinant of the mean length of krill Euphausia superba recovered from penguins, there were no ...

   Meeting Document : WG-EMM-99/29 : Autor(es): S.D. Berrow, R.I. Taylor and A. Murray (United Kingdom)

5. Results of phase I of the Russian research program for toothfish fishery in Subarea 88.3 during the 2010/11 season

   Abstract:  In accordance with decision of SC-CCAMLR in 2010, the Russian Federation conducted ... been made, the total number of exposed hooks being 87,096. The research program covered SSRU B, C, and ... D of Subarea 88.3. In SSRU A longlines were not investigated because ice conditions were difficult ... . All toothfish catches and by-catch were subjected to biological analysis. 30 toothfish individuals of ...

   Meeting Document : WG-FSA-11/36 : Autor(es): Delegation of Russia

6. Population dynamics of the wandering albatross (Diomedea exulans) on Macquarie Island and the effects of mortality from longline fishing

   Abstract:  The estimated breeding population of wandering albatrosses on Macquarie Island ... increased from 17 in 1956 to a maximum of 97 in 1966, and then declined at an average rate of 8.1% per year ... emigration). The decline is correlated with the onset of large-scale fishing for tuna in the southern ... hemisphere using longlines. The effect of longline mortality on the population dynamics of the wandering ...

   Meeting Document : WG-IMALF-94/07 : Autor(es): William K. de la Mare and Knowles R. Kerry (Australia)

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

   confidence intervals for an index of relative importance (% IRIDC) of prey categories. Diet varied ... ) fish tended to prey on a higher proportion of T. gaudichaudii and small euphausids such as Thysanoessa ... sp. and took smaller quantities of E. superba. In a season of poor krill availability (summer of 2003 ... -2004) the proportion of krill in the diet, stomach fullness and fish condition (indicated by length ...

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

8. Population demography of Antarctic fur seals: the costs of reproduction and implications for life-histories

   Abstract:  1. This study examined the costs of reproduction in terms of future survival and ... , to estimate the rate of increase of the population as 10•7% per annum. 3. The average annual survival ... of food. Survival rate was unrelated to any other environmental or demographic parameter including ... population size. 4. There was no evidence of senescence. Survival rate was not related to year of birth or ...

   Meeting Document : WG-EMM-95/26 : Autor(es): Reid, K., Croxall, J.P., Lunn, N.J., Boyd, I.L.

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

   Abstract:  Progressing from Stage 1 to Stage 2 of a feedback management strategy requires a better ... 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 ... might affect the distribution of fishing effort.  A comparison of CEMP parameters from two years with ...

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

10. A bioenergetics model assessment of the prey consumption of Adélie penguins in Subarea 48.1 and 48.2

    Abstract:  We present a preliminary analysis to estimate the consumption of prey by Adélie ... breeding. We parameterised our analysis using data from the population of Adélie penguins breeding at Signy ... Island, South Orkneys. We show that the highest levels of consumption occur during the crèche and pre ... -moult period, consistent with similar studies of Adélie penguins breeding in East Antarctica. On the ...

    Meeting Document : WG-EMM-17/32 : Autor(es): C. M. Waluda, L. Emmerson, C. Southwell and P.N. Trathan

Páginas