Search results
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The breeding biology and distribution of Adelie penguins: adaptations to environmental variability
Research (LTER) study of the effects of environmental variability on animal populations in the Antarctic ... of Adelie penguins in the Southern Ocean are variability in sea ice cover, ocean circulation patterns ... concluded that Adelie penguins have discrete subpopulations in the northeastern and southwestern regions of ... each is within several hundred kilometers of predictable pack ice areas in the Weddell and ...
Meeting Document : WG-EMM-96/58 : Author(s): Fraser, W.R., Trivelpiece, W.Z.
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Review of the 2005 budget, draft 2006 budget and forecast budget for 2007
result in some one-off expenditures which cannot be quantified accurately at the time of preparing this ... budget. General Services Staff salary increases in 2004 also had the effect of an increase in the Staff ... budgetary implications of implementing the C-VMS in that contributions will increase beyond zero real growth ... receipt and payments have been ignored in the preparation of the review of the 2005 Budget, the 2006 Draft ...
Meeting Document : CCAMLR-XXIV/04 : Author(s): Executive Secretary
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Developing research on Antarctic krill to facilitate the development and updating of feedback management procedures
Abstract: Antarctic krill fisheries have the potential to be in the top 10 fisheries of the world ... in terms of biomass production. The expansion of the fishery from current levels appears inevitable ... 2002-2004. Since that time, there have been shifts in the behaviour and methods of the krill fishery ... remain a number of major gaps in our understanding of the basic biology and dynamics of krill populations ...
Meeting Document : WG-EMM-13/12 : Author(s): E.J. Murphy, R.D. Cavanagh (United Kingdom), A. Constable (Australia), E.H. Hofmann (USA), S.L. Hill, N.M. Johnston, P.N. Trathan and J.L. Watkins (United Kingdom)
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Estimation of the fishery–krill–predator overlap
the level of overlap in recent years (1995-98) than estimated with either the catch in the CPD or the ... small difference in the values of the Agnew-Phegan and Schroeder indices, but had little influence on ... inter-annual trends. Increasing the level of resolution of the model, and in particular the spatial ... resolution, resulted in lower overlap between the krill fishery and the krill predators, and lower values of ...
Meeting Document : WG-EMM-99/11 : Author(s): Secretariat
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Evaluation of Antarctic krill biomass and distribution off the South Orkney Islands 2011-2015
high, in the range 100-300 g/m 2 based on the 120 kHz recordings, and a total estimated biomass of ca ... . 8 million tons of krill within the stratum in the peak year 2014. There were also consistently ... canyons. In 2012, and particularly in 2015, low proportions of the acoustic backscatter were allocated to ... Institute of Marine research, Norway near the South Orkney Islands since 2011. The survey has been conducted ...
Meeting Document : WG-EMM-15/54 : Author(s): G. Skaret, B.A. Krafft, L. Calise (Norway), J. Watkins (UK), R. Pedersen and O.R. Godø (Norway)
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Cephalopod diet of the southern elephant seal (Mirounga leonina) at King George Island, South Shetland Islands
Abstract: In the austral summer of 1995/96, 25 southern elephant seals, Mirounga leonina, were ... present in 72% of the individuals sampled (n=18). Seven species of squid and 3 of octopus were identified ... . Overall, the squid species Psychroteuthis glacialis was by far the most important prey in terms of numbers ... (77%), biomass (80.8%) and frequency of occurrence (94.4%). Next in importance in terms of mass in the ...
Meeting Document : WG-EMM-99/13 : Author(s): G.A. Daneri, A.R. Carlini (Argentina) and P.G.K. Rodhouse (United Kingdom)
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Diet and feeding ecology of the diving petrels Pelecanoides georgicus and P. urinatrix at South Georgia
Bird Island, South Georgia. The diet of both species was dominated by crustaceans. in particular ... crustaceans in the diet of P. georgicus. and copepods, which contributed 71 % of the biomass of crustaceans in ... the diet of P. urinatrix. Calanoides acutus was the most numerous copepod in the diet of both species ... in the diet of P. georgicus, Primo macropa, was absent from the diet of Pelecanoides urinatrix, in ...
Meeting Document : WG-EMM-97/10 : Author(s): Croxall, J.P., Prince, P.A., Hill, H.J., Edwards, T.M., Reid, K.
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Modelling the impact of fishery by-catches on albatross populations
parameters in the model. 3. The model used two alternative assumptions about patterns of at-sea distribution ... -catch in longline fisheries and this mortality has been implicated in the population declines. 2. We ... developed a deterministic, density-dependent, age-structured model for assessing the effects of longlining ... of wandering albatross (uniform between 30°S–60°S; proportional to the distribution of longline ...
Meeting Document : WG-FSA-01/18 : Author(s): G. Tuck, T. Polacheck (Australia), J.P. Croxall (UK) and H. Weimerskirch (France)
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New Zealand: Review of the Ross Sea region stock assessment
every year using tree regression on mean length by set – Tagged fish released by area to account ... quarantined data • Red line ~ mean age for all years 32 AF Slope 33 AF North Survey information ...
Document : Site Section: Meetings
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Summary of monitoring and research effort and preliminary results from the 2019 Scotia Sea krill monitoring survey with FV Cabo de Hornos
samples on the shelf north of the south Shetland islands, in the Bransfield Strait, the shelf north of the ... distribution were dominated by two modes, one of very large animals averaging around 55 mm dominating in the ... Association of Responsible Harvesting Companies (ARK) and manned with personnel from the Institute of Marine ... Research to carry out a significant part of the 2019 Scotia Sea large scale krill monitoring. All sections ...
Meeting Document : WG-EMM-2019/46 : Author(s): G. Skaret, M. Martinussen, G. McCallum, R. Pedersen, J. Rønning, A.L. Donoso, O.A. Bergstad and B.A. Krafft