Résultats de la recherche
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Australia’s actions and regional cooperation to combat IUU activities in the 2014/15 fishing season
Abstract: The 2014/15 CCAMLR fishing season has seen significant progress in the fight to combat ... that international cooperation has been instrumental in the successes seen in 2014/15. Author(s ... ): Delegation of Australia Title: Australia’s actions and regional cooperation to combat IUU activities in the ...
Meeting Document : CCAMLR-XXXIV/BG/17 : Auteur(s): Delegation of Australia
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Alternative methods for determining subarea or local area catch limits for krill in Statistical Area 48
limit on krill (Euphausia superba) in Statistical Area 48. The measure also asks the Scientific ... enforcement, 5) the effects on current fishing patterns, and 6) the potential for delay in implementing the ... models include large amounts of biological information, but may not be practical in the near future ... explicit and result in delayed implementation. None of the alternatives are categorized as being both ...
Meeting Document : WG-KRILL-92/16 : Auteur(s): G. Watters and R.P. Hewitt (USA)
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A spatially explicit population dynamics operating model for Antarctic toothfish in the habitable depths of the Ross Sea region
Antarctic toothfish in the Ross Sea region, for a medium scale spatial resolution (189 spatial cells ... ) covering the Ross Sea region. In this model run we spatially restrict the stock to cells where at least 5 ... plausible distribution hypothesis in-between the two extreme bounding hypotheses represented by the ... about the distribution of toothfish in areas where no fishing has occurred, such that the unrestricted ...
Meeting Document : WG-FSA-13/53 : Auteur(s): S. Mormede, A. Dunn, S. Parker and S. Hanchet (New Zealand)
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Selectivity and two biomass measures in an age-based assessment of Antarctic krill (Euphausia superba)
selectivities were examined. Parameters were estimated in phases with the sequential order of the phases ... quantities was tested using simulated data. Annual trends in the estimates of total biomass, spawning biomass ... trends in population biomass, but less variable estimates of scale, compared to time-constant ... in any integrated stock assessment with parameters estimated in phases. Author(s): D. Kinzey, G.M ...
Meeting Document : WG-EMM-15/P07 : Auteur(s): D. Kinzey, G.M. Watters and C.S. Reiss
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A LARGE-SCALE SURVEY OF ADÉLIE PENGUIN BREEDING DISTRIBUTION IN EAST ANTARCTICA
across the Australian Antarctic Territory in east Antarctica found that approximately half of the species ... current breeding distribution, it is not possible to reliably assess possible future change in breeding ... sites, increasing the number of known breeding sites in the survey region by 42% from 104 to 148. Author ... BREEDING DISTRIBUTION IN EAST ANTARCTICA Approval: Approved ...
Meeting Document : WG-EMM-11/34 : Auteur(s): C. Southwell and L. Emmerson (Australia)
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Sources of variance in studies of krill population genetics
Abstract: There is a long-term interest in the population genetics of Antarctic krill species ... resurgence of interest in identifying distinct stocks of swarming krill species has been driven by the ... structure. More recent investigations using sequence variation in mitochondrial DNA (mtDNA) did indicate ... variance attributable to differences between regions. Genetic differentiation between stocks of krill in ...
Meeting Document : WG-EMM-01/12 : Auteur(s): S.N. Jarman and S. Nicol (Australia)
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A multiple-frequency method for identifying and assessing the Antarctic krill stock in the Ross Sea (1989/90, 1997/98 and 1999/2000)
Abstract: The paper describes the criteria, based on the multiple frequency analysis, used in the ... crystallorophias ones and from other scatters. They are based on the experimental data acquired in the expeditions ... applied to estimate krill biomass in the area of Ross Sea (22000 nm2), investigated from 19 to 26 December ... for identifying and assessing the Antarctic krill stock in the Ross Sea (1989/90, 1997/98 and 1999 ...
Meeting Document : WG-EMM-00/37 : Auteur(s): M. Azzali, J. Kalinowski and G. Lanciani (Italy)
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Improvements to the multiple-frequency method for in situ target strength measurements
to improve the accuracy and precision of in-situ target strength (TS) measurements using split-beam ... integer multiples of each other. In this study, the method itself was improved by: 1) optimizing the ... in radial range and ±0.7° off-axis (compared to ±l.0 m ±l.5° in the previous study). These ... for in situ target strength measurements Approval: Approved ...
Meeting Document : WG-EMM-99/38 : Auteur(s): D.A. Demer (USA) and M.A. Soule (South Africa)
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An acoustic survey of Antarctic krill on the South Georgia shelf, CCAMLR Subarea 48.3, in January 1992
Abstract: Acoustic surveys designed to assess krill abundance are costly in time and money, so ... the opportunity was taken in 1992 to produce a krill biomass estimate as a by-product of a fish stock ... Georgia. The appearances of echoes on echo charts were used to decide which echoes to include in krill ... ) echoes from larger scatterers. The data in the krill-size subset has been converted to density estimates ...
Meeting Document : WG-EMM-96/42 : Auteur(s): Everson, I., Goss, C.
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CLASSIFICATION GUIDE FOR POTENTIALLY VULNERABLE INVERTEBRATE TAXA IN THE ROSS SEA LONG-LINE FISHERY
Abstract: Conservation Measure 22-06, in the absence of site-specific or other conservation ... to be taken when evidence of a Vulnerable Marine Ecosystem (VME) is encountered in the course of ... -deck guide to aid in the classification of invertebrate bycatch into the appropriate groupings. The ... for other taxa. It is printed as an A2 waterproof poster for display in the vessel factory or on deck ...
Meeting Document : WG-FSA-08/19 : Auteur(s): S. Parker, D. Tracey, E. Mackay, S. Mills, P. Marriott, O. Anderson, K. Schnabel, D. Bowden and M. Kelly (New Zealand)