Search results
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DEVELOPMENT OF SPATIALLY EXPLICIT AGE-STRUCTURED POPULATION DYNAMICS OPERATING MODELS FOR ANTARCTIC TOOTHFISH IN THE ROSS SEA
operating models for Antarctic toothfish in the Ross Sea. The operating models consider both a coarse-scale ... and fine-scale spatial resolution and consider scenarios where abundance can be present over the ... entire Ross Sea region or constrained to areas where the fishery has operated. The models represent ... other factors to quantify risk and uncertainties for management of the Ross Sea Antarctic toothfish ...
Meeting Document : WG-SAM-09/18 : Author(s): A. Dunn, S. Rasmussen and S. Hanchet (New Zealand)
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Research plan for the exploratory fisheries for Dissostichus spp. in Division 58.4.3a in 2014/15
the latest CCAMLR C2 and observer data toward the development of research plan for the 2014/15 ... exploratory fishery of Dissostichus eleginoides in Division 58.4.3a. The stock size for block 5843a_1 was ... estimated using the Petersen estimator and the CPUE x seabed analogy method using effective data on tagging ... experiment and appropriate reference area (north of Subarea 48.4) for the CPUE method recommended at the last ...
Meeting Document : WG-SAM-14/04 : Author(s): Delegation of Japan
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Revised research plan for the 2015/16 exploratory longline fishery of Dissostichus spp. in Division 58.4.2
Abstract: The current season (2014/15) is the final one of the first three-season research which ... began in 2013 in data-poor fisheries. In the present report, the next three-season (2016-18) research ... plan in Division 58.4.2 was revised using the updated CCAMLR C2 and Observer data. The stock sizes for ... a research block (58.4.2_1) were estimated by the Petersen estimator and the CPUE x seabed analogy ...
Meeting Document : WG-FSA-15/18 : Author(s): Delegation of Japan
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ECOSYSTEM SERVICES OF THE SOUTHERN OCEAN
Abstract: The Southern Ocean is a globally important marine region, providing a range of ... ecosystem services which support human life, health and well-being, including the provision of marine living ... resources, and the regulation of global climate and sea level. Assessing ecological processes in terms of ... the services they provide translates the complexity of the environment into functions which can be ...
Meeting Document : WG-EMM-11/21 : Author(s): S.M. Grant, S.L. Hill and P.N. Trathan (UK)
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An integrated stock assessment for the Patagonian toothfish (Dissostichus eleginoides) in Division 58.5.2 using CASAL
using CASAL and demonstrates that all of the data available for assessments, including surveys, fishery ... -binned mark-recapture data, can be incorporated into the model. Earlier difficulties in using CASAL have ... been resolved. The results presented here indicate a general downward bias in the expected recaptures ... showing that the mark-recapture observations indicates a smaller stock size than the other datasets. This ...
Meeting Document : WG-FSA-06/64 : Author(s): A. Constable, S. Candy, T. Lamb and I. Ball (Australia)
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Hydrography and acoustic biomass estimates of Antarctic krill (Euphausia superba) near the South Shetland Islands, Antarctica, during January 2000: preliminary results
Abstract: To estimate the abundance and distribution of Antarctic krill (Euphausia superba) in ... the vicinity of South Shetland Islands (SSI), a hydroacoustic/oceanographic survey was conducted by ... the R/V Onnuri from 9 to 19 January 2000. The acoustic data were obtained using a Simrad EK500 ... echosounder operating at 38, 120, and 200 kHz, from 8 transects comprising the South Shetland Islands (SSI ...
Meeting Document : WG-EMM-00/52 : Author(s): D. Kang, Y. Lee, H.-C. Shin, W. Lee and S. Kim (Republic of Korea)
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Fish and squid in the diet of king penguin chicks, Aptenodytes patagonicus, during winter at sub-Antarctic Crozet Islands
Abstract: The diet of king penguins, Aptenodytes patagonicus, rearing chicks was studied during ... three consecutive austral winters (1990, 1991 and 1992) at Crozet Islands. The mean stomach content mass ... of the 47 samples was 503 g. Percentages of wet and reconstituted masses showed that both fishes (66 ... and 36%, respectively) and squid (34 and 64%) are important components of the winter diet. Juveniles ...
Meeting Document : WG-EMM-97/09 : Author(s): Cherel, Y., Ridoux, V., Rodhouse, P.G.
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Research plan for the 2016/17 exploratory longline fishery of Dissostichus spp. in Subarea 48.6 by South Africa and Japan
Abstract: South Africa and Japan made the next season’s (2016/17) research plan in Subarea 48.6 ... using the updated CCAMLR C2 and Observer data. We have firstly checked data quality and found some ... abnormal data for the two vessels in block 48.6_2, therefore we removed the data for the current analysis ... . We investigated the biological features of D. mawsoni using Observer data. The geographical ...
Meeting Document : WG-SAM-16/07 : Author(s): Delegations of Japan and South Africa
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Long term movements and activity patterns of an Antarctic marine apex predator: the leopard seal
ecosystems through local predation. Here we report on the successful use of micro geolocation logging sensor ... tags to track the movements, and activity, of four leopard seals for trips of between 142-446 days ... including one individual in two separate years. Whilst the sample size is small the results represent an ... advance in our limited knowledge of leopard seals. We show the longest periods of tracking of leopard ...
Meeting Document : WG-EMM-18/P09 : Author(s): I.J. Staniland, N. Ratcliffe, P.N. Trathan and J. Forcada
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Analysis of the diet of Champsocephalus gunnari in Subarea 48.3, in late summer of years 1994–97, Dr E. Holmberg surveys
Abstract: The diet composition of mackerel icefish Champsocephalus gunnari caught in Subarea 48.3 ... ;Q" (%) methods. Krill (Euphausia superba) followed by the amphipod hyperiid Themisto ... gaudichaudii was the main food item around South Georgia and Shag Rocks in the period investigated, except in ... 1994, when the order of importance of these two organisms in the diet was inverted. The consumption of ...
Meeting Document : WG-FSA-97/48 : Author(s): Barrera-Oro, E., Marschoff, E., Casaux, R.