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IMPROVING ESTIMATES OF ADÉLIE PENGUIN BREEDING POPULATION SIZE: DEVELOPING FACTORS TO ADJUST ONE-OFF POPULATION COUNTS FOR AVAILABILITY BIAS
times within a breeding season to minimise bias in estimates of the breeding population has long been ... recognised, the considerable work in obtaining one-off counts for population surveys have not been matched by ... for Adélie penguins in east Antarctica. Author(s): C. Southwell, J. McKinlay, L. Emmerson, R ...
Meeting Document : WG-EMM-09/38 : Автор(ы): C. Southwell, J. McKinlay, L. Emmerson, R. Trebilco and K. Newbery (Australia)
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An assessment of the mackerel icefish (Champsocephalus gunnari) off Heard Island
in 1990, 1992, 1993 and 1997. The assessments include estimates of all the parameters required, based ... tonnes in the 1997/98 season and 600 tonnes in 1998/99. Author(s): de la Mare, W.K., Constable, A ...
Meeting Document : WG-FSA-97/29 : Автор(ы): de la Mare, W.K., Constable, A., Williams, R.
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Development of an underwater setting method for surface longliners, to minimise the accidental capture of seabirds
Abstract: In response to the Department of Conservation's concerns for the accidental ... placement devices were evaluated. Two methods being selected for further in depth evaluation. The first ... reaches its determined depth. At this point in time the carry over action of the capsule and retrieval ...
Meeting Document : WG-FSA-97/54 : Автор(ы): Bentley, N., Smith, M.
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Pre-spawning and spawning biology of the Patagonian toothfish, Dissostichus eleginoides, around South Georgia (Subarea 48.3)
reproductive part of the Dissostichus eleginoides population in Subarea 48.3. Analysis and synthesis of these ... patterns of D. eleginoides sampled from longline catches. Some differences in food composition in relation ...
Meeting Document : WG-FSA-92/13 : Автор(ы): I.N. Konforkin and A.N. Kozlov (VNIRO, Moscow, Russia)
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The diet of the blue-eyed shag Phalacrocorax atriceps during summer at Nelson Island, Antarctica: temporal variations and consumption rates
coriiceps, predominated in frequency (56%) and in mass (55%), whereas Harpagifer antarcticus was the most ... the adults averaged 1.7 trips day-1 during incubation, 2.0 trips day-1 in early rearing and 4.6 trips ...
Meeting Document : WG-EMM-95/82 : Автор(ы): Silva, P., Barrera-Oro, E., Casaux, R., Favero, M., Coria, N.
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Geographic aspects of Euphausia superba resources exploitation
. Concentration of E.superba of the same order of biomass volume as in the Scotia Sea were observed at several ... E.superba show increased spatial irregularity. Development of fisheries activity in these new for catching ... as related changeability of aggregation location in the open-ocean environment. Exploitation of ... course of every fishery season (year). Author(s): R.R. Makarov (Russia) Title: Geographic aspects of ...
Meeting Document : WG-KRILL-93/04 : Автор(ы): R.R. Makarov (Russia)
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Geographic aspects of Euphausia superba resources exploitation
° Concentration of E.superba of the same order of biomass volume as in the Scotia Sea were observed at several ... E.superba show increased spatial irregularity. Development of fisheries activity in these new for catching ... as related changeability of aggregation location in the open-ocean environment. Exploitation of ... course of every fishery season (year). Author(s): R.R. Makarov (Russian Federation) Title: Geographic ...
Meeting Document : WG-CEMP-92/31 : Автор(ы): R.R. Makarov (Russian Federation)
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Choice of a procedure for deciding closure of CCAMLR fisheries: a simulation model
Secretariat of CCAMLR, as described in Conservation Measures, have been difficult to implement because of the ... variation in catch rates shown by the fisheries. Non-fluctuating random and fluctuating random catch ... under a variety of circumstances. The Model described in the existing Conservation Measures is shown to ...
Meeting Document : CCAMLR-X/BG/09 : Автор(ы): Secretariat
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AMLR Hydroacoustic Survey System Description of Methods, A Case Study
Abstract: The AMLR hydroacoustic system used for surveys in the vicinity of Elephant Island and ... block estimates and the total biomass in the surveyed area. The process depends on: 1) a calibrated ... ensures data integrity and repeatability of analytic results. The variability inherent in the distribution ...
Meeting Document : WG-KRILL-89/10 : Автор(ы): M.C. Macaulay (USA)
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Analysis of observer coverage for Japanese krill fishing vessels
stage cluster sampling units (i.e., vessel, year, subarea, and haul), and examined changes in the ... 1995 to 2008. Based on the multistage sampling theory, we derived the equation of variance in four ... coefficients of variation (CV) caused by the shifts in coverage at different sampling stages. Vessel coverage ... had the largest impacts, and year coverage had moderate impacts on CV for both mean krill length and ...
Meeting Document : WG-SAM-10/17 : Автор(ы): T. Okuda, M. Kiyota and H. Okamura (Japan)
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