Search results
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Modelling growth of Antarctic krill: growth trends with sex, length, season, and region
seasonal trend for each region. Smaller krill exhibited higher growth rates and a progressive decrease in ... growth was December in Indian sector, whereas in the Scotia Sea sector it appeared to be a few months ... earlier than this. Significantly lower growth rates were exhibited by females in January and February ... relative to males. Seasonal specific growth rates estimated in this study were compared to previous studies ...
Meeting Document : WG-EMM-05/29 : Author(s): S. Kawaguchi, S. Candy, R. King (Australia), M. Naganobu (Japan) and S. Nicol (Australia)
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Reconciling theoretical versus empirical target strengths of krill; effects of phase variability on the distorted wave Born approximation
, the authors noted that the differences were not entirely due to noise. In this study, the accuracy of ... the DWBA model is further explored. Results indicate that phase variability in the scatter from ... elements of a discretized bent cylinder (krill model) causes a dramatic flattening in the side-lobe regions ... krill TS measurements in McGehee et al. (1998). Thus, by accounting for phase-variability in the ...
Meeting Document : WG-EMM-02/50 : Author(s): D.A. Demer and S.G. Conti (USA)
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A proposal to report marine casualties to CCAMLR
flag vessels operating in the Convention Area) to require an investigation in the event of a very ... serious marine casualty¹ involving a fishing vessel². Such investigation will result in the preparation of ... Convention on the Law of the Sea with respect to fishing vessels operating under CCAMLR’s jurisdiction in the ... ” would mean accidents or events caused by or involving a vessel that result in total loss of the ship ...
Meeting Document : CCAMLR-XXX/24 : Author(s): Delegations of the USA and New Zealand
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BEACH DEBRIS SURVEY AND INCIDENCE OF ENTANGLEMENT OF ANTARCTIC FUR SEALS ARCTOCEPHALUS GAZELLA AT SIGNY ISLAND, SOUTH ORKNEY ISLANDS 2007/2008
). There was a decrease in the number of plastic packaging bands with only two found in the current season ... (both of which had been cut open), marking a break in the otherwise continued rise in packaging bands ... the longevity of plastics and other materials with a high resistance to degradation in the marine ...
Meeting Document : WG-FSA-08/26 : Author(s): M.J. Dunn and C.M. Waluda (UK)
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Modelling Movement of Antarctic Krill (MMAK): the importance of retention, dispersal and behaviour for krill distribution – a project update
that influence the distribution of Antarctic krill in CCAMLR Area 48, focussing in particular on the ... investigate the impact of physical and behavioural processes on the distribution of krill in this area, at ... simulated transport to the South Orkneys region demonstrates spatial and temporal variability in input and ... being investigated, which will include examination of the role of tides in determining on-shelf ...
Meeting Document : WG-EMM-18/06 : Author(s): S.E. Thorpe, E.F. Young, E.J. Murphy, O.R. Godø and A.H.H. Renner
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Analysis of trawl data from the South Georgia krill fishery
Abstract: Data from individual trawls carried out by vessels operating in the krill fishery at ... focussed, operating in a limited area along the shelf edge on the northern coast of the island. Each day a ... large number of trawls were undertaken by each,vessel, with trawls being shorter in duration during the ... the variability are discussed in relation to the biology of krill, others are discussed in relation to ...
Meeting Document : WG-EMM-97/41 : Author(s): Parkes, G., Trathan, P.N., Everson, I., Murphy, E.J.
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Proposal for trials to test modified longline gear as a means to reduce cetacean depredation and mitigate incidental bird catch
” longline configuration for mitigating cetacean interactions in 2006. This paper should be read in ... UK intends to proceed with further, more extensive trials, in the 2007/08 fishing season in Subarea ...
Meeting Document : WG-FSA-07/31 : Author(s): Delegation of the United Kingdom
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The Antarctic toothfish: how common a prey for Weddell seals?
Antarctic toothfish (Dissostichus mawsoni) in McMurdo Sound, Antarctica, during 2001-2003 austral summers ... . In addition to past reports of isolated toothfish captures, the frequency of these observations and ... Weddell seals, and that the recent development of a toothfish fishery in the Ross Sea may have broader ... impacts than expected. This is especially important in the McMurdo Sound region as toothfish are probably ...
Meeting Document : WG-EMM-07/P4 : Author(s): P.J. Ponganis and T.K. Stockard (USA)
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A comparison of model predictions from KPFM1 and KPFM2
seasonality into parameter estimates and a necessary change in the predator recruitment function of KPFM2 ... . These comparisons provide a preliminary indication that the substantial changes in the structure and ... logic of KPFM2 have not caused substantial changes in model results. In essence, KPFM1 has become a ...
Meeting Document : WG-EMM-06/20 : Author(s): J. Hinke, G. Watters (USA), S. Hill and K. Reid (United Kingdom)
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Reviewing the age structured production model (ASPM) as an alternative method to estimate the Patagonian toothfish biomass at CCAMLR Subarea 48.3
toothfish stock assessment at CCAMLR Subarea 48.3. Results obtained from this model, presented in the last ... meeting of WG-FSA-SAM held in Yokohama (Japan), show acceptable fit with standardized CPUE series, annual ... catches and observed catch length proportions (Wöhler et al., 2005- WG-FSA-SAM 05/5). In this paper, we ... estimate vulnerability patterns. Results were similar to those obtained in paper WG-FSA-SAM 05/5. Author(s ...
Meeting Document : WG-FSA-05/73 : Author(s): O.C. Wöhler, P.A. Martinez and A. Aubone (Argentina)