Search results
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PRELIMINARY ESTIMATION OF PENGUIN BREEDING ABUNDANCE AT SPATIAL-SCALES OF RELEVANCE TO CCAMLR: INCORPORATING UNCERTAINTY IN COUNT DATA
Abstract: One recommendation from the Predator Survey workshop was the undertaking of some ... immediate inter-sessional work to be reported to WG-EMM-08. The work to be undertaken included preliminary ... Antarctic data for Adélie penguins. It was recognised that the abundance estimates would not be corrected ... for availability (e.g. nest failure) and hence would to some extent be biased estimates of the ...
Meeting Document : WG-EMM-08/53 : Author(s): H. Lynch, R. Naveen (USA), J. McKinlay, C. Southwell (Australia), P. Trathan (United Kingdom), W. Trivelpiece, S. Trivelpiece (USA) and D. Ramm (CCAMLR Secretariat)
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Connectivity and population structure in Pleuragramma antarcticum
silverfish (Pleuragramma antarcticum) are distributed in independent, discrete populations in the Ross Sea ... , over the West Antarctic Peninsula, and around the South Orkneys; or whether the Southern Ocean ... populations: i) in the Ross Sea, ii) on the southern Antarctic Peninsula in Marguerite Bay and off Charcot ... Island, iii) off Joinville Island, and iv) around the South Orkney Islands. This suggested that ...
Meeting Document : WG-FSA-11/19 : Author(s): J. Ferguson, J. Ashford, A. Piñones, J. Torres, W. Fraser, C. Jones (USA) and M. Pinkerton (New Zealand)
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Selectivity-induced bias in growth parameter estimates
Abstract: A short simulation study has been carried out to investigate the size of the bias in ... being included in catch samples. Fish were included in catch samples from the population with ... probability equal to an assumed relative selectivity at length. Both the mean growth parameters and the ... selectivity function used in the simulations closely matched those used for current toothfish assessments in ...
Meeting Document : WG-FSA-SAM-05/19 : Author(s): G.P. Kirkwood (United Kingdom)
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Report on incidental bird mortality and effectiveness of mitigation measures during demersal long lining by Ihn Sung 66 in Subarea 48.3 - December 1993 to February 1994
the effectiveness of mitigation measures is described. An alternative design of streamer line for use ... with the 'Spanish' method of longlining (separate hauling and fishing lines) is described ... . The results of observations of incidental mortality of seabirds made during the fishing operations of ... the Korean longliner lhn Sung 66 are presented. Preliminary findings suggest that the phase of ...
Meeting Document : WG-IMALF-94/14 : Author(s): C. Jones and G. Parkes (United Kingdom)
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Key Principles in Designating Marine Protected Areas and Marine Reserves
Abstract: This paper summarises some key principles to consider in the designation of Marine ... the Antarctic Ocean Alliance (AOA), an ASOC member. These briefings discuss the duration of MPAs and ... MRs, the application of the precautionary principle to MPAs and MRs and the designation of MPAs and ... MRs in the context of climate change. Additionally, CCAMLR’s opportunity to create a strong ...
Meeting Document : CCAMLR-XXXII/BG/16 : Author(s): Submitted by ASOC
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Independent reviews of CCAMLR stock assessments – a discussion paper
Abstract: In 2013 the Commission endorsed the Scientific Committee’s recommendation to develop a ... understand that the Scientific Committee will be discussing possible avenues to achieve this goal. We believe ... the Commission could complement the efforts of the Scientific Committee by noting the need for action ... on this topic and supporting the Scientific Committee in their development of a procedure ...
Meeting Document : SC-CAMLR-XXXV/BG/20 : Author(s): Delegation of the USA
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Species profile of mackerel icefish (Champsocephalus gunnari)
Abstract: Mackerel icefish (Champsocephalus gunnari) has been exploited since the early 1970’s ... and became the target species of fisheries in many parts of the low-Antarctic from 1975 to 1990 ... . Exploitation has been limited to South Georgia and Heard and McDonald Islands since the second half of the 1990 ... ’s with annual catches of a few thousand tonnes in each of the two areas. Aspect of the biology and ...
Meeting Document : WG-FSA-07/12 : Author(s): K.-H. Kock (Germany) and I. Everson (UK)
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Video monitoring trial Avro Chieftain 2005 an interim report
monitoring system within 58.5.2. The initial results from the monitoring of the hauling are optimistic but ... need to be fully analysed against the observer data that was generated for the same period. There is ... confidence that the trial achieved the objectives required of monitoring the hauling but the results of ... monitoring the setting operation were unsatisfactory due to operational and technical limitations of the ...
Meeting Document : WG-FSA-05/74 : Author(s): B. Stanley (Australia)
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Stable isotope analysis of Southern Ocean fish tissue samples to investigate trophic linkages of Antarctic toothfish (Dissostichus mawsoni)
fishing vessels during the 2005/06 season in the Ross Sea CCAMLR Subarea 88.1 in order to investigate ... three trophic levels exist between icefish occupying the lowest trophic level, and Antarctic toothfish ... occupying the highest level. Some Antarctic toothfish sampled in this study occupied a similar trophic level ... according to their?15N signatures to killer whales and Weddell seals in McMurdo Sound, bluefin tuna in the ...
Meeting Document : WG-EMM-07/19 : Author(s): M.H. Pinkerton, S. Bury, S.M. Hanchet and D. Thompson (New Zealand)
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Variability and predictability of Antarctic krill swarm structure
Abstract: Swarming is a fundamental part of the life of Euphausia superba, yet we still know very ... little about what drives the considerable variability in swarm shape, size and biomass. We examined ... swarms across the Scotia Sea in January and February 2003 using a Simrad EK60 (38 kHz, 120 kHz ... ) echosounder, concurrent with net sampling. The acoustic data were analysed through applying a swarm ...
Meeting Document : WG-EMM-10/P10 : Author(s): G.A.Tarling, T. Klevjer, S. Fielding, J. Watkins, A. Atkinson, E. Murphy, R. Korb, M. Whitehouse and R. Leaper