Search results
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Swarm characteristics of Antarctic krill Euphausia superba relative to the proximity of land during summer in the Scotia Sea
swarming characteristics of Antarctic krill across the Scotia Sea in January and February 2003. Krill ... -sectional areas of swarms were significantly larger inshore, with a mean value of 120 m 2 in the 0 to 50 km ... . The highest median number of swarms per km and krill acoustic biomass per km was found in the 50 to ... 100 km zone. However, a significantly greater number of large, biomass-rich swarms occurred in the 0 ...
Meeting Document : WG-EMM-10/P09 : Author(s): T. Klevjer, G.A. Tarling and S. Fielding
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Precautionary spatial protection to facilitate the scientific study of habitats and communities under ice shelves in the context of recent, rapid, regional climate change
Abstract: Recent, rapid climate change is now well documented in the Antarctic, particularly in ... collapse; overall, 87% of the Peninsula’s glaciers have retreated in recent decades. Ice shelf collapse ... will lead to the loss of existing marine habitats and the creation of new habitats. In general, fauna ... under ice shelves exist in oligotrophic conditions, and because ice shelf collapse may lead to greater ...
Meeting Document : WG-EMM-12/34 : Author(s): P.N Trathan, S.M. Grant (United Kingdom), V. Siegel and K.-H. Kock (Germany)
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Characteristics of krill aggregations in 48.4 subdivision during January–February 2000
Abstract: It has been showed that krill spatial distribution in 48.4 Subarea was characterized by ... type in relation to water mass structure and dynamics. The distributional features and physical ... characteristics of some 2400 krill swarms detected and sized acoustically in the study area have been described ... . Comparative results have been given between swarm parameter means in different areas and seasons. There has ...
Meeting Document : WG-EMM-01/42 : Author(s): S.M. Kasatkina, A.P. Malyshko, V.N.Shnar and O.A. Berezhinskiy (Russia)
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Reproductive ecology of Antarctic toothfish, Dissostichus mawsoni (Norman, 1937) (Actinopterygii: Nototheniidae), in the Antarctic waters (SSRUs 58 and 88)
Abstract: Total numbers of Antarctic toothfish collected in the CCAMLR Conservation Zone were 600 ... March, 2016. Female ratios were found to be 0.49 in both areas, showing higher female occurrence with ... was found to be 0.53, and displayed the tendency of increase with increase in the total length 140 cm ... . The type of ovarian development of Antarctic toothfish was group-synchronous type. The results in 2016 ...
Meeting Document : WG-FSA-18/65 : Author(s): J.-W. Kim, S.-G. Choi, S. Chung and D.H. An
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Modelling growth and reproduction of Antarctic krill: implications of spatial and temporal trends in temperature and food for ecosystem-based management of krill fisheries
Abstract: Errors in the growth model used in stock assessments of Antarctic krill, specifically ... higher rates of growth than occur in reality, could inadvertantly lead to over-exploitation of the krill ... generally applied under spatially and temporally varying conditions. In the context of assessments of ... precautionary yield for krill in CCAMLR, we recommend that this new model be incorporated into those assessments ...
Meeting Document : WG-EMM-12/38 : Author(s): A.J. Constable and S. Kawaguchi (Australia)
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Proposal for a SCOR Working Group to identify Ecosystem Essential Ocean Variables for measuring change in the biological properties of marine ecosystems
for measuring change in the biological properties of marine ecosystems” was developed by members of ... the Southern Ocean Observing System (SOOS) Science Steering Committee in conjuction with discussions ... for linking a number of groups working on this issue, leading to a symposium in 2016. The proposal is ... detailed in this paper. It is recommended that the Scientific Committee of CCAMLR become involved in this ...
Meeting Document : WG-EMM-12/45 : Author(s): A. Constable (Australia)
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Interannual variation in the autumn diet of the gentoo penguin Pygoscelis papua at Laurie Island, Antarctica
migrant adults were sampled during 1993, 1995 and 1996. Fish were the most important prey by mass in 1995 ... (81.1%) and 1996 (60.5%) whereas crustaceans predominated in 1993 (70% by mass). Euphausia superba was ... largely the most important prey among the eleven crustacean taxa identified in the samples. Among fish ... , species of the family Nototheniidae predominated in the diet with G. gibberifrons as the most important ...
Meeting Document : WG-EMM-99/19 : Author(s): N. Coria, M. Libertelli, R. Casaux and C. Darrieu (Argentina)
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IMPLEMENTATION OF THE SYSTEM OF INSPECTION AND OTHER CCAMLR COMPLIANCE-RELATED MEASURES IN 2009/10
IN 2009/10 INTRODUCTION This paper summarises information on the implementation of the System of ... data has been provided in CCAMLR-XXIX/BG/9, although details of some compliance-related aspects of ... fisheries-related conservation measures are summarised in paragraphs 7 to 13 of this paper. Information on ... the implementation and operation of the CDS has been provided in CCAMLR-XXIX/BG/8. Preliminary ...
Meeting Document : CCAMLR-XXIX/BG/07 : Author(s): Secretariat
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Progress by WG-EMM-STAPP in estimating krill consumption by air-breathing predators within CCAMLR areas
Abstract: This paper summarises progress by WG-EMM-STAPP in estimating krill consumption by air ... -breathing predators in CCAMLR management units. There have been significant advances in estimating krill ... consumption by pack-ice seals and penguins since the last update in 2011. Estimates of pack-ice seal abundance ... krill-consuming seal species, has been estimated in Areas 48 and 58. Large-scale estimates of breeding ...
Meeting Document : WG-EMM-16/68 : Author(s): C. Southwell and P. Trathan
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Simulating performance of trend analysis for setting catch limits in exploratory toothfish research plans
Abstract: Catch limits for toothfish in research blocks were set for the 2017/18 season using a ... qualitative analysis of trends in biomass estimated in each research block and a series of simple decision ... high or low abundance, high or low uncertainty in biomass estimates, and for populations with ... increasing, stable, or decreasing trends in abundance. The trend analysis rules performed well given the ...
Meeting Document : WG-SAM-18/23 : Author(s): S. Hoyle, S. Parker, A. Dunn and S. Mormede