Search results
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The effects of global climate variability in pup production of Antarctic fur seals
-induced changes in the abundance of species in lower trophic levels can cascade up to apex predators by ... autocorrelation created by global climate perturbations; these were identified in time series of monthly averaged ... . SST anomalies were preceded by, and cross-correlated with, frequent El Niño-La Niña events between ... breeding cycle. Reductions in Antarctic fur seal pup production could thus be predicted in advance by the ...
Meeting Document : WG-EMM-06/P2 : Author(s): J. Forcada, P.N. Trathan, K. Reid and E.J. Murphy (United Kingdom)
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Demonstrating global leadership in marine spatial protection
system of marine protected areas (MPAs) and Marine Reserves by 2012.1 The recent Workshop on Marine ... do so. The key principles and concepts are straightforward, and supported by excellent, science-based ... papers put forward by various Members and NGOs to help create the initial system of MPAs and Marine ... implementation of MPAs and Marine Reserves. In addition, ASOC contributed by bringing forward concrete scientific ...
Meeting Document : CCAMLR-XXX/BG/20 : Author(s): Submitted by ASOC
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The Role of Fish as Predators of Krill (Euphausia superba) and Other Pelagic Resources in the Southern Ocean
consumption by Antarctic demersal fish. These estimates were extended to the mesopelagic realm and the high ... number of food studies were conducted. Currently, the best estimates of krill consumption by fish are 23 ... – 29. 106 tonnes of krill and other pelagic prey taken annually by demersal fish and 7 – 44. 106 tonnes ... taken by mesopelagic fish in the Atlantic Ocean sector only. However, these estimates still have wide ...
Meeting Document : CCAMLR-IWC-WS-08/09 : Author(s): Collins, M.A., Williams, R., Agnew, D.J., Kock, K.-H., Belchier, M., Shust, K.V., Welsford, D., Hanchet, S., Pshenichnov, L., Barrera-Oro, E.
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Exploratory longline fishing around the Kerguelen Islands (Division 58.5.1). Description of the fishing effort; catchability and target size of Dissostichus eleginoides
fishing carried out by one of these longliners has allowed a description of fishing methods to be made ... by trawlers. The vessel is equipped with an automatic longline baiter which has an efficiency of ... about 75%. The catch rate has been assessed as being about 10.9%, but this average is reduced by the ... the order of 10.2%. The catch is almost exclusively made up of Dissostichus eleginiodes, by-catches ...
Meeting Document : WG-FSA-92/31 Rev. 1 : Author(s): G. Duhamel (France)
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Establishing time-limited Special Areas for Scientific Study in newly exposed marine areas following ice shelf retreat or collapse in Subarea 48.1, Subarea 48.5 and Subarea 88.3 – Clarifications and options to further develop the 2015 proposal
recommendation by the Antarctic Treaty Meeting of Experts on Climate Change in 2010. The scientific basis of the ... agreed by most Members to be an appropriate and practicable response to an important issue. However, a ... number of points for clarification were raised by the Scientific Committee and the Commission. In this ... paper, we present some clarifications and options for the proposed mechanism by which Special Areas for ...
Meeting Document : WG-EMM-16/27 : Author(s): S. Grant and P. Trathan
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Comparison of census methods for black-browed albatrosses breeding at the Ildefonso Archipelago, Chile
photography underestimated population size by 55%, ground counts by 13%, quadrat sampling by 11% and point ... -distance sampling by 9%. Ground-truthed air photography revealed that in the 2002/03 breeding season 47,000 ...
Meeting Document : WG-FSA-06/12 : Author(s): G. Robertson, K. Lawton (Australia), C.A. Moreno (Chile), R. Kirkwood (Australia) and J. Valencia (Chile)
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Observations of Adélie penguins in two seasons with contrasting weather and sea-ice conditions – a brief report
characterised by unusual sea ice and weather condition. Strong southerly winds and snow were experienced at the ... in by the presence of the large icebergs. This resulted in extensive sea ice lasting into February ... adjacent to the Edmonson Point colony. These environmental effects were accompanied by changes in CEMP ... date was extended by 4 days, the first incubation shift was significantly longer with respect to 2000 ...
Meeting Document : WG-EMM-03/59 : Author(s): S. Olmastroni, F. Pezzo, V. Volpi and S. Focardi (Italy)
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Analysis of potential threats from fishing to the objectives of a proposed Ross Sea region MPA
objectives identified in the Ross Sea region MPA proposal submitted jointly by New Zealand and the USA ... , or undermining ongoing efforts to understand environmental change un-confounded by human impacts ... and scientific objectives were always implicit in the systematic process of MPA design used by New ... in space, and detail plausible mechanisms by which those threats can be expected to occur. Author ...
Meeting Document : SC-CAMLR-IM-I/09 : Author(s): Delegations of New Zealand and the USA
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CDS Implementation and Data Analysis
Abstract: The CDS was effectively implemented in 2019 by 16 Member States, three Acceding States ... and one NCP cooperating with CCAMLR by participating in the CDS, and one NCP with limited access to ... imports was by the United States of America (USA) in both years, followed by China. Analysis of supply ...
Meeting Document : CCAMLR-38/BG/10 Rev. 2 : Author(s): CCAMLR Secretariat
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Seabird mortality in the artisanal austral hake and Patagonian toothfish longline fisheries in southern Chile
. Accordingly, seabird by-catch was 0.030 birds/1000 hooks in the Austral hake fishery, mainly accounted by ... birds caught during the slow process of hauling. The overall by-catch rate in the Patagonian toothfish ... was 0.047 birds/1000 hooks. Considering the big fishing effort deployed by the artisanal toothfish ...
Meeting Document : WG-FSA-04/54 : Author(s): C.A. Moreno, P. Rubilar, J. Arata, R. Hucke-Gaete (Chile) and G. Robertson (Australia)