Search results
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Temperature-dependent growth of Thysanoessa macrura: inter-annual and spatial variability
which vary in space and time. Because species specific responses in growth rates to environmental ... variability may affect populations through changes in reproductive potential, measuring spatial and temporal ... variability in growth rates of highly abundant zooplankton is critical to predict the impact of climate change ... apart to estimate growth rates of one the most euphausiids in the Southern Ocean, Thysanoessa macrura ...
Meeting Document : WG-EMM-13/39 : Author(s): R.M. Driscoll, C.S. Reiss and B.T. Hentschel (USA)
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Changing status of three notothenioid fish at the South Shetland Islands (1983–2016) after impacts of the 1970–80s commercial fishery
species had become depleted around the South Shetland Islands. Herein we report subsequent changes in the ... prevalence of three species, Notothenia rossii, Gobionotothen gibberifrons and N otothenia coriiceps in ... Potter Cove, King George Islands/ Isla 25 de Mayo, in a 33-year effort to monitor recovery. N. rossii and ... G. gibberifrons had been severely impacted by industrial fishing but in offshore waters N. coriiceps ...
Meeting Document : WG-FSA-17/P01 : Author(s): E. Barrera-Oro, E. Marschoff and D. Ainley
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Relative selectivity of four sampling methods using traps and trawls for male snow crabs (Chionoecetes opilio)
deployed during the day. and (4) bottom trawl deployed at night. Catches were characterized in terms of ... crabs captured in large-meshed traps was larger than those captured in small-meshed traps which, in turn ... , were larger than those caught in the trawl; the size of crabs caught in the trawl at night was larger ... than those caught during the day; 2) large-clawed crabs predominated in the catches from traps whereas ...
Meeting Document : WS-CRAB-93/11 : Author(s): J.M. Hoenig and E.G. Dawe (USA)
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Conflict or co-existence? Foraging distribution and competition for prey between Adélie and chinstrap penguins
and ecologically very similar, have very similar diet and breed sympatrically in the Scotia Arc from ... penguins and 24 chinstrap penguins were used to compare foraging distributions. In both years the diet of ... both species was exclusively Antarctic krill (Euphausia superba) of the same size range. In a year of ... between the two species, however, in a year of normal resource availability (2001) there was no such ...
Meeting Document : WG-EMM-02/15 : Author(s): A.S. Lynnes, K. Reid, J.P. Croxall and P.N. Trathan (United Kingdom)
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Marine debris surveys at Bird Island, South Georgia 1990 to 1995
reduce entanglement of marine mammals and birds. Overall, and in all but one year, the highest incidence ... category overall (76 %), and in all samples since 1991, was pieces of synthetic lone as used in the ... %) and polythene bags (6 %) were the next commonest items. There was a substantial increase in the number ... of items found ashore in 1995 which coincided with an apparent increase in long-line fishing effort ...
Meeting Document : CCAMLR-XV/BG/05 : Author(s): Delegation of the United Kingdom
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Monitoring krill population variability using seabirds and seals at South Georgia – new samplers provide new insights
Abstract: Variability in the Southern Ocean is often characterised by fluctuations in the ... South Georgia interannual variability in the krill-based marine ecosystem has historically been most ... frequently detected in the response of upper-trophic level predators. Analysis of the changes in the ... population size structure of krill in the diet of Antarctic fur seals Arctocephalus gazella, particularly ...
Meeting Document : WG-EMM-04/63 : Author(s): K. Reid, E.J. Murphy, J.P. Croxall and P.N. Trathan (United Kingdom)
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Scientific background to the proposed East Antarctica Representative System of Marine Protected Areas
Abstract: Rev. 1 Note: This revision corrects minor transcription errors in Table 1. These ... transcription errors were in relation to BANZARE Bank inside the Planning Domain. No changes to the text have ... Commission achieving the objectives of CCAMLR in Article II, in both conservation and in science relevant to ... since the first MPA workshop in 2005. This paper shows how the EARSMPA is designed to: efficiently ...
Meeting Document : SC-CAMLR-IM-I/10 Rev. 1 : Author(s): Delegations of Australia, France and the European Union
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Review of the 2007 budget, draft 2008 budget and forecast budget for 2009
. The presentation is in the format determined by the Commission at its 2002 Meeting. The expenditure ... surplus includes an unbudgeted, half-year New Member Contribution of A$53 312 in respect of the People’s ... Republic of China, which applied to become a member of the Commission in July 2007. General Services Staff ... salary increases in 2007 amounted to 6.5%, but part of this is offset by an increase in the Staff ...
Meeting Document : CCAMLR-XXVI/04 : Author(s): Executive Secretary
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A three-frequency method to determine the abundance and the size of two euphausiid species (Euphausia superba and Euphausia crystallorophias)
role in the Ross Sea pelagic ecosystem (Marr, 1962; Azzali et al., 1999). To estimate the abundance of ... obtain information about the mean size (length) of the organisms in each aggregation. In principle the ... , and directly from net samplings. The mean size of the crustaceans can be estimated from “in situ ... catches. Unfortunately the precision and credibility of this method are often insufficient when applied in ...
Meeting Document : WG-EMM-01/63 : Author(s): M. Azzali, J. Kalinowksi, G. Lanciani and I. Leonori (Italy)
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The biology of the spiny icefish (Chaenodraco wilsoni Regan, 1914)
Abstract: The most abundant icefish species observed in catches off the northern tip of the ... Antarctic Peninsula in the last 25- 30 years has been the spiny icefish Chaenodraco wilsoni Regan 1914. C ... Joinville – D’Urville Islands (CCAMLR Statistical Subarea 48.1) and in the Cosmonauts and Cooperation Seas ... and Prydz Bay in the Indian Ocean sector (CCAMLR Statistical Division 58.4.2). This paper presents new ...
Meeting Document : WG-FSA-07/P1 : Author(s): K.-H. Kock, L.V. Pshenichnov, C.D. Jones, J. Gröger and R. Riehl. (Polar Biol., 31 (3): 381–393 (2007))