Search results
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Models of larvae dispersion of Antarctic toothfish (Dissostichus mawsoni)
stock structure in the Ross Sea have parallels for populations in other regions of the Antarctic, and ... locations in the northern areas of Subarea 88.1 & 88.2 to further investigate the possible larval ... hypotheses about how stock structure is maintained may apply to each population. We provide an update of the ... circumpolar models of larval dispersion for D. mawsoni developed by Hanchet et al. (2008) using the HiGEM ...
Meeting Document : WG-FSA-12/48 : Author(s): A. Dunn, G.J. Rickard, S.M. Hanchet and S.J. Parker (New Zealand)
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Ideal survey patterns: an example of using a simulated world
relative abundance of the population? How well can this method detect changes in the abundance of the ... strength of the simulation method in answering these questions and in exploring the efficacy of survey ... criteria. The shot selection criteria can be either that locations of known good quality are preferentially ... selected or that locations are selected at random. The landscape and fishery are simulated in a spatially ...
Meeting Document : WG-FSA-01/75 : Author(s): I.R. Ball and A.J. Constable (Australia)
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MULTIPLE INDICATORS SUGGEST A STRONG ECOSYSTEM ANOMALY AT SOUTH GEORGIA IN 2009
local oceanographic and atmospheric conditions. Much of the observed variability in various fitness ... diets and low krill biomass in the regularly surveyed “Western Core Box”. Consequently many of the ... lowest level in over two decades of monitoring. These observations provide support for the idea that ... krill is a major mediator of climatic effects on the ecosystem. They also suggest that icefish diets, in ...
Meeting Document : WG-EMM-09/23 : Author(s): S. Hill, M. Belchier, M. Collins, S. Fielding, E. Murphy, P. Trathan, H. Venables and C. Waluda (United Kingdom)
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Seabird observations in Subareas 48.1, 48.2 and 88.3 and proposal for a new streamer line design
of the New Fisheries Project developed by Chile in Statistical Subareas 88.3, 48.1 and 48.2. During ... , carrying out bird observations in each one of the 52 castings with the Spanish-designed longlines as well ... highest number of species was found in Subarea 48.1 with 19 species observed and the least in Subarea 48.2 ... with the presence of only 4 species. Title: Seabird observations in Subareas 48.1, 48.2 and 88.3 and ...
Meeting Document : WG-FSA-98/19
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Status of white-chinned petrels Procellaria aequinoctialis Linnaeus 1758, at Bird Island, South Georgia
the distributioin and density of occupied burrows in 1981 and 1998. In both surveys white-chinned ... petrel burrows occurred in one-quarter of the 460–47736-m2 quadrats surveyed. The total number of burrows ... breeding in tussock grassland at sub-Antarctic islands. Over the last decade it has been killed in large ... numbers in temperate and sub-tropical longline fisheries. However, no data are available on the global ...
Meeting Document : WG-FSA-01/26 Rev. 1 : Author(s): S.D. Berrow, J.P. Croxall and S.D. Grant (United Kingdom)
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A preliminary stock assessment in SSRUS 486A, G: A Bayesian and CPUE based biomass dynamic model
implemented in each species of toothfish. Tagging data was not used in any of the toothfish models, because of ... the low number of recovered individuals and low tag size-overlap. Modelling abundance in both species ... contribution to estimate abundance in a simple biomass dynamic model for both species of toothfish in northern ... sets in which both species are present, and thus, an analysis of catch intention was implemented by ...
Meeting Document : WG-SAM-13/29 : Author(s): R. Wiff, J.C. Quiroz (Chile) and R. Scott (United Kingdom)
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THE SOUTHERN OCEAN OBSERVING SYSTEM (SOOS) MEETING REPORT (St Petersburg, Russia, 5 to 7 July 2008)
and actions to move the process forward. The object of a SOOS is to develop the means to observe key changes ... and actions to move the process forward. The object of a SOOS is to develop the means to observe key changes ...
Meeting Document : CCAMLR-XXVII/BG/43 : Author(s): SCAR Observer to CCAMLR (G. Hosie, Australia)
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Different CPUE types in Soviet krill fishery statistics in 1977–1992
were catch per haul and haul duration. There is rather high correlation between mean monthly values ... duration, mean daily CFD and CH are well correlated. Depending on the strategy, number of hauls per day ... were catch per haul and haul duration. There is rather high correlation between mean monthly values ... duration, mean daily CFD and CH are well correlated. Depending on the strategy, number of hauls per day ...
Meeting Document : WG-EMM-03/35 : Author(s): F.F. Litvinov, A.Z. Sundakov and V. Arkhipov (Russia)
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Beach debris survey Signy Island, South Orkney Islands, 1998/99
recovered was more than double the mass of items in 1997/98. Classifying the material by source revealed ... that 40% had come from ships or fishing vessels in the form of packaging bands, fishing net and foam ... on the use of packaging bands aboard fishing vessels brought into force by CCAMLR in 1995/96, the ... categories. A total of 83 items weighing 12.96 kg was collected. The number of items recovered was the ...
Meeting Document : CCAMLR-XVIII/BG/7 : Author(s): Delegation of the United Kingdom
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Review of some assumptions for modelling Patagonian toothfish dynamics at CCAMLR Subarea 48.3
cases were similar, there were considerable differences in assumptions and implementations of the two ... relationship is also analyzed, in relation with the current underlying assumption of fish stock resilience ... Abstract: During the year 2005 meeting of the WG-FSA two different methods for assessing ... Patagonian toothfish stock in CCAMLR Subarea 48.3 were available to the Working Group: CASAL and ASPM (WG-FSA ...
Meeting Document : WG-FSA-SAM-06/13 : Author(s): A. Aubone, P.A. Martínez and O.C. Wöhler (Argentina)