Search results
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Theoretical considerations for estimating the density of cohorts and mean recruitment of Patagonian toothfish (Dissostichus eleginoides) based on research trawl survey data
the recruitment series for Subarea 48.3. In light of this, the Scientific Committee agreed that there ... meeting. This paper elaborates the issues surrounding how age information should be incorporated into CMIX ... analyses; which age groups should be included in the estimation of recruitment, and the need for a clear ... theoretical issues involved with estimating cohort densities from length density data from trawl surveys with ...
Meeting Document : WG-FSA-04/92 : Author(s): C.R. Davies, E.M. van Wijk and A.J. Constable (Australia)
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Preliminary assessment of the South Georgia toothfish stock, 2007
be considered, and that the toothfish assessment is undertaken at periods of greater than one year ... Abstract: 1. The catch-at-length based CASAL model for toothfish at South Georgia is updated with ... data that tag-induced growth retardation is also related to size, smaller fish suffering less growth ... retardation than larger fish, and that on average it is 1 year or more. 3. A new model is developed which uses ...
Meeting Document : WG-FSA-07/29 : Author(s): D.J. Agnew, R. Hillary and J. Pearce (United Kingdom)
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Ocean acidification and the Southern Ocean
, including the Southern Ocean. The relative undersaturation of CaCO3 in the Southern Ocean suggests that ... organisms such as the pteropods that form the base of much of the Southern Ocean food chain. Orr et al (2005 ... ) predicted that under the Intergovernmental Panel on Climate Change (IPCC) IS92a warming scenario, which ... be undersaturated throughout the Southern Ocean. Even under the more conservative IPCC S650 scenario ...
Meeting Document : CCAMLR-XXIX/BG/24 : Author(s): ASOC Observer
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Revised outline of the dedicated krill survey for CCAMLR Division 58.4.1 during 2018/19 season by the Japanese survey vessel, Kaiyo-maru
Abstract: A dedicated krill survey for CCAMLR Division 58.4.1 during 2018/19 season will be ... kHz) for biomass estimation will be considered using obtained data. Broadband echosounder measurements ... of length and orientation of Antarctic krill will also be conducted. An initial plan of the survey ... meeting in separate papers (Abe et al., 2018; Amakasu et al. 2018). The finalized plan will be submitted ...
Meeting Document : SG-ASAM-18/03 : Author(s): H. Murase, K. Abe, R. Matsukura, H. Sasaki and T. Ichii
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The biology, ecology and development of fishery management advice for the anomuran crabs of South Georgia (CCAMLR Subarea 48.3)
determine the extent to which the available data may be used in developing assessments for these fisheries ... . Author(s): M. Belchier, T. Peatman and J. Brown (United Kingdom) Title: The biology, ecology and ...
Meeting Document : WG-FSA-11/26 : Author(s): M. Belchier, T. Peatman and J. Brown (United Kingdom)
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The foraging range of Adélie penguins – implications for CEMP and interactions with the krill fishery
are being monitored at a number of sites around Antarctica, a spatial overlap between the foraging areas ... Paper Title: The foraging range of Adélie penguins – implications for CEMP and interactions with ... feeding chicks regularly travelled up to 120 km offshore to the continental shelf and returned with krill ... , Euphausia superba. Locations of penguins on foraging trips were compared with historical records of fine ... -scale krill catch data for the regions of interest. The potential for overlap with krill fishing occurs ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 75–87 : Author(s): Kerry, K.R., J.R. Clarke, S. Eberhard, H. Gardner, R.M. Lawless, S. Corsolini, S. Focardi, E. Franchi, D. Rodary and R. Thomson
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Tooth growth in male Antarctic fur seals (Arctocephalus gazella) from South Georgia: an indicator of long-term growth history
) and increased with age at death. Changes in the growth pattern of teeth suggested that fur seals which ... significant correlations between morphometrics of teeth and those of seals, suggesting that tooth growth ... compared with the expected layer depth based on a linear relationship between layer depth and age at which ... in different years, suggesting that growth was greater in some years than others. No trends in cohort ...
Meeting Document : WG-CEMP-93/11 : Author(s): I.L. Boyd and J.P. Roberts (United Kingdom)
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Estimation and correction of migration-related bias in the tag-based stock assessment of Patagonian toothfish in Division 58.5.2
biomass, and stock status being over-estimated. We then estimated migration of rates of Kerguelen Plateau ... biomass, and stock status being over-estimated. We then estimated migration of rates of Kerguelen Plateau ...
Meeting Document : WG-SAM-17/11 : Author(s): P. Burch, P. Ziegler, D. Welsford and C. Péron
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A method for spreading the risk of localised effects of catches of Antarctic krill up to the trigger level, during the development of stage 2 of feedback management
the trigger level that ensured that krill predators “ would not be inadvertently and ... disproportionately affected by fishing activity”. CM 51-07 is to be “ reviewed in 2016 with the intent of ensuring ... because the Commission, in the preambular paragraphs to that measure, recognised that localised catches up ... across subareas and amongst SSMUs for 2016/17 and beyond. They indicate that some SSMUs may have a ...
Meeting Document : WG-EMM-16/69 : Author(s): A.J. Constable, S. Kawaguchi and M. Sumner
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Australia’s observations and actions on IUU activities in 2015/16
), with other CCAMLR members, and with other countries more broadly. The paper notes that international ... taken as part of its compliance program, and in cooperation with South East Asian countries through the ... cooperation continues to be instrumental in combatting IUU fishing in the CCAMLR Area. Author(s): Delegation ...
Meeting Document : CCAMLR-XXXV/BG/20 : Author(s): Delegation of Australia