Resultados de la búsqueda
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Mitigation trials and recommendations to reduce seabird mortality in the pelagic icefish (Champsocephalus gunnari) fishery (Subarea 48.3)
) season in sub-area 48.3, to quantify seabird interaction with fishing operations, to trial different ... mitigation methods in an attempt to reduce seabird mortality caused by entanglement with the net and to ... collect baseline data on general seabird abundance while fishing. Priority was placed on developing a new ... idea of binding the net with sisal string on shooting, in order to prevent it opening until it had sunk ...
Meeting Document : WG-FSA-05/59 : Autor(es): J.O. Roe (United Kingdom)
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An Apparent Decrease in the Prevalence of “Ross Sea Killer Whales” in the Southern Ross Sea
occurrence patterns and diet of RS killer whales, and present new information on numbers observed in the ... daily basis has also decreased in nearby McMurdo Sound. Consistent with a decrease in the catch-per-unit ... whales would force more direct competition with other predators for capture of the smaller-fish prey ... . Therefore, we propose, the Ross Sea killer whales have opted to move elsewhere in a scenario consistent with ...
Meeting Document : WG-EMM-09/P01 : Autor(es): D.G. Ainley, G. Ballard and S. Olmastroni
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Male krill grow fast and die young
with time unless new recruits enter the population. Indeed, inter-annual variations in the proportion ... examined with an extensive dataset derived from scientific surveys in the Indian Ocean sector and the ...
Meeting Document : WG-EMM-07/P6 : Autor(es): S. Kawaguchi, L.A. Finley, S. Jarman, S.G. Candy (Australia), R.M. Ross, L.B. Quetin (USA), V. Siegel (Germany), W. Trivelpiece (USA), M. Naganobu (Japan) and S. Nicol (Australia)
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A review and preliminary analysis of CEMP data
methods would ensure that everybody is satisfied with the existing methods, and new guidelines regarding ... could be performed with the CEMP data, since the flying seabird and seal data have not yet been examined ...
Meeting Document : WG-EMM-02/7 : Autor(es): Secretariat
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Growth rates of Antarctic fur seals as indices of environmental conditions
weighing cross-sections of the population were compared with measured/inferred changes in the the ... based on cross-sectional population samples. A new index was developed, based on the deviation of pup ... linearity. The indices of growth deviates produced a more logical relationship with other indices of pup ...
Meeting Document : WG-EMM-01/20 : Autor(es): K. Reid (United Kingdom)
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Estimation of size at maturity and calculation of an appropriate size limit for male Paralomis formosa
the philosophical and statistical problems associated with estimating size at maturity by fitting ... be made to make the spline technique more robust to outliers in Y-space (crabs with regenerating ... , but, despite the availability of new data and the arbitrary nature of the current size limit on this ...
Meeting Document : WG-FSA-96/35 : Autor(es): Watters, G.
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An assessment of Chaenocephalus aceratus and Pseudochaenichthys georgianus in Subarea 48.3
and length data from Polish research and commercial sources has been used with the new catch data in a ... VPA (Variable Population Analysis). The analyses show good agreement with historical biomass estimates ...
Meeting Document : WG-FSA-90/06 : Autor(es): D.J. Agnew (Secretariat) and K.-H. Kock (Germany)
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On the scientific observation and krill escape mortality in the krill fishery
highlighted the magnitude of the scientific uncertainties and data gaps that are hampering progress with ... fishery. Krill escapement mortality- and the methods to determine it- is closely connected with the need ... , including a new suitable section to the Observer Cruise Report. The need to have observers collecting data ...
Meeting Document : CCAMLR-XXIX/45 : Autor(es): Delegation of Ukraine
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Glider-based estimates of Antarctic krill in Bransfield Strait, and the West shelf off Livingston Island, Antarctica
Research), equipped with a suite of oceanographic sensors (CTD, fluorometers, and oxygen) and a three ... those from ship-based surveys historically conducted by the U. S. Antarctic Marine Living Resources ... from 350 glider profiles was 25.0 g m-2, compared with the mean biomass density of 28 g m-2 collected ... the area of ship surveys to overlap with the area surveyed by the glider was 79 g m-2. Mean biomass ...
Meeting Document : WG-EMM-2019/13 : Autor(es): C. Reiss, A. Cossio, G. Cutter, J. Walsh and G. Watters
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Climate change and the role of CCAMLR
to lie in: 1) coordinating with the Committed on Environmental Protection (CEP) in addressing climate ... change, including monitoring efforts, data collection and area protection; 2) extending the use of Marine ...
Meeting Document : CCAMLR-XXIX/BG/19 : Autor(es): ASOC Observer