Search results
-
Notification for scientific research in 2017/18: proposal to participate in research plan for Antarctic toothfish in Subarea 88.3
conduct research in this subarea. There is considerable uncertainty about the abundance of Antarctic ... Antarctic toothfish in this subarea – and their relationship to the rest of the Pacific Sector. Korea have ... proposal are: (i) to determine the abundance of Antarctic toothfish in Subarea 88.3; and (ii) to improve ... understanding of stock structure of toothfish in this area. To complete the effort-limited survey a total of 65 ...
Meeting Document : WG-SAM-17/38 : Author(s): Delegation of New Zealand
-
USING ECOSYSTEM STRUCTURE TO IDENTIFY FINER-SCALE SSMUS FOR OCEANIC AREAS IN SUBAREAS 48.1 TO 48.3
Abstract: One of the main issues in the management of the krill fishery is finding a spatial ... initial framework of small scale management units (SSMUs) in subareas 48.1 to 48.4 based on the spatial ... consumption of krill by predators and 10% of the cumulative total fishery catch in the three subareas (48.1 to ... 48.3) where the fishery operates. There is ample evidence of structure in oceanic areas from both ...
Meeting Document : WG-EMM-11/18 : Author(s): S.L. Hill and J. Silk (UK)
-
e-sc-xiii-a7.pdf
... both species. 3.17 Paper WG-Joint-94/9 reported that the mean density of krill around Elephant ... by using mean, variance and skewness of the observed distributions of predator survival rates ... attention, by means of this modelling approach, on the predators which seem likely to show the greatest ... /11 and WG-Krill-93/43). It was emphasised that ‘escapement’ did not mean the biomass of krill ... derived from the fishery mean that, at least in the near future, the provision of prey indices relevant ... Review of Available Data Krill Biomass Estimates in the Integrated Study Regions (ISRs) Fine-scale ... adopted. 2.3 The Agenda is included in this report as Appendix A, the List of Participants as Appendix ... set out in the Report of the Subgroup on Survey Design (SC-CAMLR-X, Annex 5, Appendix D). In
application/pdf attached to:WG-KRILL/CEMP-94Meeting Report : WG-KRILL/CEMP-94
-
e-sc-xxv-a4-appD.pdf
... . Empirically derived predator parameters should be presented as means and ranges to represent uncertainty ... in Figures 2(a) (using the arithmetic mean) and 2(b) (using the geometric mean). In these plots ... . 4.20 In addition, the workshop examined the trade-off between the mean realised catch versus ... ; (iii) further development of performance measures and the means for providing integrated advice ... continue the evaluation of procedures to allocate the precautionary krill catch limit in Area 48 among ... Statistical Area 48. (iv) Summarise the results of those evaluations in the form of advice to the WG-EMM ... to the evaluation of options for subdividing the precautionary limit of krill catch in Area 48 ... based on the dynamics of krill and two generic predators (penguins and fur seals). Coded in AD
application/pdf attached to:WMP-06Meeting Report : WMP-06
-
Measurements of sound-speed and density contrasts of Antarctic krill (Euphausia superba) on board RV Kaiyo Maru
bottle method. The mean total length and the mean mass-density contrast were 43.5mm and 1.028 near South ... . The corresponding sound-speed contrast of krill with mean total lengths of 44.2mm was 1.011 in the South Shetland ... Islands. These contrasts of krill with mean total lengths of 25.1mm and 48.6mm were 1.044 and 1.035 ... bottle method. The mean total length and the mean mass-density contrast were 43.5mm and 1.028 near South ...
Meeting Document : WG-EMM-08/56 Rev. 1 : Author(s): Y. Takao, H. Yasuma, R. Matsukura, K. Amakasu and M. Naganobu (Japan)
-
IMPACTS OF CLIMATE CHANGE ON ANTARCTIC MARINE ECOSYSTEMS: A CALL FOR ACTION
decade, but little in the way of policy or operational change has resulted at CCAMLR. Over the past 50 ... ice. "The uncertainty in climate predictions leads to uncertainty in projections of impacts, but ... Committee needs to increase its work on climate change impacts in order to consider the consequences of a ... approach to management in the context of the unknowns of climate change, and to include in this approach ...
Meeting Document : CCAMLR-XXVII/BG/27 : Author(s): Submitted by ASOC
-
An index of per capita recruitment
)eM where R1 is the proportion of age-1 animals sampled in year y and M is the post-recruit mortality ... the population is available; and 4) the proportion of age-1 animals in the sample can be determined ... assumed in order to investigate the resulting distributions of PCR. Distributions of PCR are skewed toward ... conclusions are insensitive to changes in the shape of the functional relationship between spawners and ...
Meeting Document : WG-EMM-99/50 : Author(s): R. Hewitt (USA)
-
CLIMATICALLY DRIVEN FLUCTUATIONS IN SOUTHERN OCEAN ECOSYSTEMS
role of physical and biological processes in generating fluctuations in the ecosystem around South ... Georgia in the South Atlantic sector of the Southern Ocean. Anomalies in sea surface temperature (SST) in ... changes in SST, and related fluctuations in winter sea ice extent, affect the recruitment and dispersal of ... °C over the next 100 years could lead to more than a 95% reduction in the biomass and abundance of ...
Meeting Document : WG-EMM-08/P02 : Author(s): E.J. Murphy, P.N. Trathan, J.L. Watkins, K. Reid, M.P. Meredith, J. Forcada, S.E. Thorpe, N.M. Johnston and P. Rothery
-
Growth rates of Antarctic fur seals as indices of environmental conditions
mass at age in each year compared to the multi-year mean, that was not dependent on assumptions ... compared to the multi-year mean, that was not dependent on assumptions of linearity. The indices of growth ...
Meeting Document : WG-EMM-01/20 : Author(s): K. Reid (United Kingdom)
-
e-sc-xxix-a5.pdf
... .............................................................. 154 Identify range of orientations (mean, SD) that inversion is to be applied over ........ 155 ... distribution (reported as N(11°,4°) for the ‘mean’ case in SC-CAMLR-XXVIII, Annex 8, Table 2) would need ... based on the mean values and values for ±1 SD of fatness coefficient, g, h and c listed in SC-CAMLR ... -frequency data selected in paragraph 2.23. 155 Identify range of orientations (mean, SD ... estimation of krill (Euphausia superba) biomass (B0) in Area 48 and particularly on the reanalysis of the ... a number of different biomass estimates. 1.4 In order to complete the reanalysis requested by the ... Scientific Committee, the following set of analytical steps was identified for SG-ASAM in 2010: Prior to ... reviewed the outline of the protocol provided in SC-CAMLR-XXVIII, Annex 8, Appendix E, and noted that the
application/pdf attached to:SG-ASAM-10Meeting Report : SG-ASAM-10