Search results
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30 years of krill fisheries management – challenges remain
frequently. The reproduction and survival of krill are significantly affected by sea ice cover. This is of ... concern since key spawning, recruitment and nursery areas of krill are located in the Southwest Atlantic ... sector, an area that has been warming rapidly, resulting in a reduction in the extent and duration of ... establishment of CM 51-07 – distributing the trigger limit among statistical subareas – was a step in the right ...
Meeting Document : CCAMLR-XXX/BG/19 : Author(s): Submitted by ASOC
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Potential climate change effects on the habitat of Antarctic krill
summer foraging sites of many of these predators are concentrated between 0° and 90°W. Parts of this ... sector have experienced recent localised sea surface warming of up to 0.2°C per decade, and ... projections suggest that further widespread warming of 0.27° to 1.08°C will occur by the late 21st century. We ... assess the influence of projected warming on Antarctic krill habitat quality. The results divide the ...
Meeting Document : WG-EMM-13/20 : Author(s): S.L. Hill, T. Phillips and A. Atkinson (United Kingdom)
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New Zealand submission for the trial of the CCAMLR observer training program accreditation scheme
presented in SC-CAMLR-XXX/08, and invited Members to participate in a trial of the initial review and ... technical peer review. These are described in Parts a–c of the proposed procedure for a CCAMLR observer ... -hoc TASO noted that in order to receive high-quality data from the CCAMLR Scheme of International ... consistent set of standards. In an effort to achieve this, the Scientific Committee began development of a ...
Meeting Document : WG-FSA-17/41 : Author(s): A. Dunn, D. Kerrigan and A. McNabb
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Dynamics of Antarctic krill in the Bransfield Strait during austral summer and autumn investigated using acoustic data from a fishing vessel
geographical areas of predictable high krill densities, and knowledge about trends and variability in krill ... fishing vessels might help provide such insight. In the present work, the dynamics of krill with regards ... integration assuming they constituted the bulk of krill biomass. Our results indicated a major shift in mid ... -April which included increased biomass, increased vertical distribution of swarms, a shift in diel ...
Meeting Document : WG-EMM-17/40 : Author(s): X. Wang, G. Skaret, O.R. Godø and X. Zhao
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Long-term observations from Antarctica demonstrate that mismatched scales of fisheries management and predator–prey interaction lead to erroneous conclusions about precaution
that can help conserve marine predators. Uncertainty about the impacts of fisheries removals on ... dependent predators bolsters this perspective, but consideration of the spatio-temporal scales over which ... forage species, their predators, and fisheries interact can aid assessment of whether low catch limits ... hierarchical model and 30+ years of monitoring data, we show that expected penguin performance was reduced when ...
Meeting Document : WG-EMM-2019/11 : Author(s): G.M. Watters, J.T. Hinke and C.S. Reiss
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ANTARCTIC TOOTHFISH STOCK ASSESSMENT IN DIVISION 58.4.1 ON THE BASIS OF CPUE DATA
Abstract: An attempt to use CPUE data based on data of erussian observers in the assessment of ... division (e.g. WG-SAM-08/4), the assessment was intended to be independent of estimates of toothfich stock ... biomass in the Ross Sea. As a result of implementation of a dynamic production model, current biomass in ... this division is estimated as about 15000 t, while the estimate of virgin biomass B0 is found to be ...
Meeting Document : WG-SAM-09/12 : Author(s): D. Vasilyev, K. Shust, V. Tatarnikov, I. Istomin and A. Petrov (Russia)
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A Comparison Between Age Determinations of the Antarctic Fish Notothenia gibberifrons Lönnberg Using Scales and Otoliths
Abstract: Scales and otoliths were collected from 304 specimens of the Antarctic fish Notothenia ... gibberifrons. When interpreted separately, only 25% of scale and otolith readings agreed. When a scale and ... otolith from a single simultaneously, 75% of readings agreed. of otolith readings changed between specimen ... were interpreted 60% of scale readings and 30% separate and simultaneous interpretations. Estimates of ...
Meeting Document : WG-FSA-89/13 : Author(s): R. Coggan (United Kingdom), K. Skora (Poland), A. Murray and M. White (United Kingdom)
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Report on the use of automatic satellite-linked vessel monitoring system
Abstract: This report outlines information concerning the use of an automatic satellite linked ... Vessel Monitoring System (VMS) by Australia in accordance with paragraph 5 of Resolution 12/XVI. The ... report provides the operational and technical details of the Australian VMS and reports on any breaches ... of CCAMLR Conservation Measures detected through use of the VMS. Author(s): Delegation of Australia ...
Meeting Document : SCOI-98/06 : Author(s): Delegation of Australia
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Diet of Antarctic toothfish (Dissostichus mawsoni) from the Ross Sea region, Antarctica
of piscivory on benthic fishes and cephalopods, augmented by benthic invertebrates. Sub-adult toothfish ate ... fishes and cephalopods, augmented by benthic invertebrates. Sub-adult toothfish ate a greater variety ...
Meeting Document : WG-FSA-12/52 : Author(s): D.W. Stevens, M.R. Dunn, M.H. Pinkerton and J.S. Forman (New Zealand)
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A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2009/10
Subarea 88.1 and for 9 years in Subarea 88.2. This report summarises the timing, depth, and location of ... fishing together with the catch of Dissostichus spp and bycatch species by year for the period 1997–98 to ... 2009–10. During the 2009–10 fishing year most of the catch in Subarea 88.1 came from the slope SSRUs ... considerably over time in each of the fisheries showing no trend in the main fisheries in Subarea 88.1 and SSRU ...
Meeting Document : WG-FSA-10/23 : Author(s): S.M. Hanchet, M.L. Stevenson and A. Dunn (New Zealand)