Search results
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Modelling the circumpolar distribution of Antarctic toothfish using correlative species distribution modelling methods
that may be included in future work. Methods for dealing with issues such as sampling bias in model ... Abstract: This paper presents correlative species distribution modelling methods that could be ... environmental covariates that could be included in these models are presented for discussion and feedback, as ... select number of test statistic (i.e. AUC, max Kappa and point-biserial correlation) with some ...
Meeting Document : WG-FSA-14/65 : Author(s): L.M. Robinson, K. Reid (Secretariat)
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Introducing Casal2 for toothfish stock assessments
constructed. Casal2 models can be used for a single population with a single anthropogenic event (i.e., a ... github website. We also suggest that one or multiple assessments of toothfish be included in the Casal2 ... model that allows more flexibility in specifying the population dynamics, parameter estimation, and ... model outputs than CASAL. Models are built with user-defined categories such as area, sex and maturity ...
Meeting Document : WG-SAM-18/14 : Author(s): S. Mormede
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Cetaceans as indicators of historical and current changes in the East Antarctica ecosystem
factors. This paper reviews the scientific information of whales that could be indicative of changes in ... the information is scattered and needs to be combined with new surveys in a comprehensive and ... consistent way so that a time series can be obtained. Author(s): Y. Fujise and L.A. Pastene Title ... Antarctica (70°E-170°W) showed that the increased krill availability in the middle of the past century could ...
Meeting Document : WG-EMM-16/64 : Author(s): Y. Fujise and L.A. Pastene
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Update of analysis on sea-ice concentration of southern part of 48.6 and 58.4.2 for the new research block on expected spawning ground of TOA
) and hence it should be covered by research for stock assessment in the near future. Author(s): T ... . Namba, T. Ichii and T. Okuda Title: Update of analysis on sea-ice concentration of southern part of ...
Meeting Document : WG-SAM-17/10 : Author(s): T. Namba, T. Ichii and T. Okuda
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A hybrid approach to acoustic classification and length estimation of krill
ed and counted. If the catch was large, the mean length of each species being compared with acous ... , the aggregations that could be misclassifi ed (e.g. mixed hauls or hauls dominated by other scatter- ers) were ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 33–58 : Author(s): Azzali, M., I. Leonori and G. Lanciani
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DEVELOPING OPTIONS TO BUILD CAPACITY IN SCIENCE TO SUPPORT SC-CAMLR
spend preparing analyses for the meetings and attending meetings, (2) the mechanisms that could be ... increased awareness and understanding of the work of SC‐CAMLR, and (3) the mechanisms that might be ... each option, the role that the Secretariat might play and the costs and benefits associated with each ... Abstract: In 2008, the CCAMLR Performance Review recommended that capacity in delivering ...
Meeting Document : SC-CAMLR-XXVIII/12 : Author(s): Delegations of Australia, the United Kingdom and N
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Intra-annual variability in the density of Antarctic krill (Euphausia superba) at South Georgia, 2002–2005: within-year variation provides a new framework for interpreting previous ‘annual’ estimates of krill density
and Brierley, 2001). It has been shown previously (Reid and Brierley, 2001) that sizes of krill in predator ... following the mooring being dragged prema- turely to the surface by fi shing gear. The mooring ... may occur against the predominately low winter signal (e.g. July–August in 2005) (Figure ... 2002 and 29 December 2005, with krill densities being high during sum- mer (89.5 g m–2, SD 64.2 ... estimates with the observed pattern of within-year variability showed that some of the apparent ‘year-to ... /2000. Moored instruments provide valuable data that could be important for ecosystem-based management ... = 64.2). A sinusoidal regression model (period = 52 weeks) with time as the independent variable ... surveys in adjacent time periods, suggesting that the point estimates from moored instruments were ...
Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 27–41 : Author(s): Saunders, R.A., A.S. Brierley, J.L. Watkins, K. Reid, E.J. Murphy, P. Enderlein and D.G. Bone
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Chapter 7: Organisation and business practices of CCAMLR
of the Scientific Committee be revised to take account of the priorities and emphases of the work plan being ... account of the priorities and emphases of the work plan being developed by the Scientific Committee since ...
Page : Site Section: The Organisation
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A risk-management framework for avoiding significant adverse impacts of bottom fishing gear on Vulnerable Marine Ecosystems
., 2000 for review) will result in the likelihood of significant adverse encounters with VMEs being ... databases (such as SCAR-MarBIN www.scar- marbin.be or Seamounts Online http://seamounts. sdsc.edu ... al., 2001; Johnson, 2002; Troffe et al., 2005) (Table 6). Furthermore, much of the information ... ; Gutt and Starmans, 2001; Barnes and Conlan, 2007; Teixidó et al., 2007). Risk evaluation Once ... should be reviewed annually to ensure that all relevant or new information has been included, appropriate ... measure in 2007 to ensure that significant adverse impacts of bottom fishing gear on Vulnerable Marine ... presence and the consequences of interaction with different types of gear, a risk-management framework is ... proposed, similar to that which has been used successfully to minimise the effects of longline fishing ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 177–193 : Author(s): Martin-Smith, K
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Management and uncertainty: the example of South Georgia
action (i.e. the use of 140 mm mesh) as being the best, but this is not the common situation ... years being due to the second burst of relatively high catches in 1979/80, management policy must ... line) is not consistent with the catches being concentrated in a few years (1969/70, 1970/71 and 1980 ... identification, some other species being included in the peak catches of Notothenia, and some Notothenia ... (including the effects of doing nothing) could provide a procedure for providing advice that could cope with ... : Decisions on fishery management are often made with some degree of uncertainty in scientific advice. Such ... uncertainty is unlikely to be avoided even though further research should reduce its degree. It seems useful ... . From an examination of Articles IX 2(f) and XV 2(e, d) of the CCAMLR Convention it follows that a ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 341-353 : Author(s): Gulland, J.A.