Search results

1. Susceptibility to oxidative stress in different species of Antarctic birds: preliminary results

   against toxicity of reactive oxygen species (ROS). These highly reactive molecules are normally produced ... during the 4-electrons reduction of molecular oxygen to water coupled with oxidative phosphorylation and ... during the activity of several enzymatic systems which produce ROS as intermediates. If the antioxidant ... capacity is exceeded (i.e. as a consequence of enhanced intracellular formation of ROS) a pathological ...

   Meeting Document : WG-EMM-99/59 : Author(s): S. Corsolini, F. Regoli, S. Olmastroni, M. Nigro and S. Focardi (Italy)

2. Trophic relations of the cephalopod Martialia hyadesi (Teuthoidea: Ommastrephidae) at the Antarctic Polar Front, Scotia Sea

   Abstract:  Samples of the squid, Martialia hyadesi, were collected aboard two Japanese squid ... Sea in February 1989. The dissected stomachs of 61 specimens were classified according to fullness and ... proportion of the sample had been feeding cannibalistically. Total lengths of the fish prey were estimated ... from sagital otolith size using published relationships. All fish were relatively small; 7- 35% of ...

   Meeting Document : SC-CAMLR-XI/BG/11 : Author(s): Delegation of United Kingdom

3. Summer survey of fur seals at Prince Edward Island, southern Indian Ocean

   Abstract:  The onshore distributions and the abundances of Antarctic fur seals Arctocephalus ... the entire south-west coast of Prince Edward Island. Of the two colonies of Antarctic fur seals, the ... colony among Subantarctic fur seals north of Boggel Beach remained small, with increased numbers of ... remained free of Subantarctic fur seals and had expanded at a mean intrinsic rate of natural increase of ...

   Meeting Document : WG-EMM-10/P15 : Author(s): M.N. Bester, P.G. Ryan and J. Visagie

4. Report of the UK groundfish survey at South Georgia (CCAMLR Subarea 48.3) in January 2015

   Abstract:  In January 2015 the UK undertook a bottom trawl survey of CCAMLR sub-Area 48.3 on the ... FV New Polar. A total of 77 random and representative hauls were completed giving good geographic ... coverage and encompassing depths between 108 and 352m. The overall biomass of mackerel icefish ... (Champsocephalus gunnari) was calculated at 48,543 tonnes with a lower 1-sided 95% interval estimate of 29,300t ...

   Meeting Document : WG-FSA-15/30 : Author(s): M. Belchier, S. Gregory, N. Fallon, J. McKenna, S. Hill, M. Soffker (United Kingdom), P. Lafite (South Africa) and L. Featherstone (United Kingdom)

5. Uncertainty in acoustic surveys of Antarctic krill

   estimates of74%, with confidence limits of ±55%. Author(s):  Demer, D.A. Title:  Uncertainty in acoustic ... . Compensating for these components of uncertainty resulted an increase in krill density estimates of ...

   Meeting Document : WG-EMM-95/72 : Author(s): Demer, D.A.

6. Spatial aggregation of harvesting in Subarea 48.1, in particular during the summer and close to the coast

   period 1999/2000 to 2014/2015. We show that since 2013, both the number of hauls as well as the ... associated level of catch has increased in Subarea 48.1 during the penguin breeding season. We explore in ... detail, the fishing patterns in Subarea 48.1 during 2014/2015, showing that two areas of fishing ... took place from 27 December until 28 May, over 153 days of elapsed time. During this period 4 vessels ...

   Meeting Document : WG-EMM-16/17 : Author(s): P. Trathan and S. Hill

7. Evidence of Vulnerable Marine Ecosystems documented via submarine in the Antarctic Sound and Gerlache Strait (Subarea 48.1)

   biodiversity of the Southern Ocean, a variety of ecosystems must be protected. This holds especially true for ... the benthic communities of this region that are characteristically mosaic in their distributions. As ... in CCAMLR’s Report of the Workshop on Vulnerable Marine Ecosystems (E-SC-XXVIII-A10, 2009) and as ... recognized by WG-EMM in previous years. Herein, evidence appropriate to the diverse characteristics of the ...

   Meeting Document : WG-EMM-18/35 : Author(s): S. Lockhart and J. Hocevar

8. 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 : Author(s): J. Clarke and K. Kerry (Australia)

9. Results of E.L. Holmberg 1997 fish survey in Subarea 48.3

   Abstract:  The survey comprised 51 bottom trawl hauls taken in subarea 48.3. Of these, one was ... discarded due to net damage. About 80% of the hauls were taken in the shelf of South Georgia Islands (41 ... ) and the remaining in the Shag Rocks area (9); 64% of the hauls were intended as replicates of the ... position of hauls in the previous cruises. Mean densities were obtained considering the spatial aggregation ...

   Meeting Document : WG-FSA-97/47 : Author(s): Prenski, B., Calcagno, J., Marschoff, E.R., Gonzalez, B.

10. An ecosystem-based approach to management: using individual behaviour to predict the indirect effects of Antarctic krill fisheries on penguin foraging

    becoming increasingly prevalent, they require a fuller understanding of how individual behaviour determines ... interactions within and between species. 2. Ecological interactions involving krill are of major importance to ... many species within the Antarctic. Despite extensive knowledge of the ecosystem that they occupy, there ... is still incomplete understanding of the links between species and the effect of environmental ...

    Meeting Document : WG-EMM-03/34 : Author(s): S.H. Alonzo, P.V. Switzer and M. Mangel (USA)

Pages