Resultados de la búsqueda
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Bias in the estimation of krill yield from using a deterministic formulation of the median unexploited spawning biomass
the spawning stock (as a proportion of SB0) at the end of the projection run (level of escapement ... , while the second is a generalised yield model. The decision rules relate to the effects of a specified ... long-term annual yield (γ) on (i) the probability of the spawning stock being reduced below a set ... proportion of SB0 during a projection run (probability of critical depletion) and (ii) the median status of ...
Meeting Document : WG-EMM-97/45 : Autor(es): de la Mare, W.K., Constable, A.J.
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Zonal structure of zooplankton communities in the Southern Ocean south of Australia: results from a 2150 km continuous plankton recorder transect
Abstract: The Southern Ocean south of Australia is oceanographically complex, being characterized ... by double branches of the Sub-Antarctic Front (SAF), Polar Front (PF) and Southern Antarctic ... Circumpolar Current (SACCF), in addition to the Southern Boundary (SB) of the ACC. From 25 February to 3 March ... and 66.36°S, crossing each of these frontal zones. Surface temperature, salinity, and fluorescence ...
Meeting Document : WS-BSO-07/P6 : Autor(es): Hunt, B.P.V. and G. Hosie
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Report on the effectiveness of integrated weight (fast sinking) longlines in reducing the mortality of white-chinned petrels and sooty shearwaters in autoline longline fisheries
Abstract: The difference in the number of white-chinned petrels (Procellaria aequinoctialis) and ... conducted in the seabird breeding seasons (October/November) of 2002 and 2003 on F/V’s Janas and Avro ... the Janas and Avro Chieftain were followed by large number of seabirds, including 200-1,400 white ... -chinned petrels and up to 400 sooty shearwaters. Lines were set in day-light and at night, and a single ...
Meeting Document : WG-FSA-04/72 : Autor(es): G. Robertson (Australia), N. Smith (New Zealand), B. Wienecke and S. Candy (Australia)
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Foraging zones of the two sibling species of giant petrels in the Indian Ocean throughout the annual cycle: implication for their conservation
kinds of threat in relation to their at-sea behavior. Adults, especially males, are more likely to be ... Abstract: We studied the annual distribution, activity and breeding foraging trips of the sibling ... species of giant petrels, Northern Giant Petrel Macronectes halli and Southern Giant Petrel Macronectes ... data were provided by GLS loggers (Global Location Sensing), and detail of breeding foraging trips were ...
Meeting Document : WG-FSA-12/67 : Autor(es): L. Thiers, K. Delord, C. Barbraud (France), R.A. Phillips (United Kingdom) and H. Weimerskirch (France)
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Development of methods for evaluating the management of benthic impacts from longline fishing using spatially explicit production models, including model validation
of these impacts in the scenarios tested were small, we recommend that research be focused, at least ... Abstract: An important management objective for CCAMLR in the high seas region of the Antarctic ... is to develop appropriate methods of monitoring and managing impacts of bottom fisheries on ... investigate a range of scenarios for simulating the effect and management of benthic impacts from longline ...
Meeting Document : WG-FSA-10/29 : Autor(es): A. Dunn, S.J. Parker and S. Mormede (New Zealand)
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Updated models of the habitat use of Patagonian toothfish (Dissostichus eleginoides) on the Kerguelen Plateau around Heard Island and the McDonald Islands (Division 58.5.2)
depth. Proportion of females increased at shallower (<500m) and deeper (>1200m) depths, whereas a ... (Dissostichus eleginoides) in the CCAMLR area, with landings of >5000 t.yr-1 from the French EEZ (Division ... (HIMI, Division 58.5.2). This paper provides a synthesis of the spatial distribution of the Patagonian ... quantify the effect of bathymetry in structuring the spatial distribution of different length classes and ...
Meeting Document : WG-FSA-14/42 : Autor(es): C. Péron and D.C. Welsford (Australia)
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A review of rattail (Macrourus spp.) and skate by-catch and analysis of standardised CPUE, for the exploratory fishery in the Ross Sea (CCAMLR Subareas 88.1 and 88.2) from 1997/98 to 2004/05
Abstract: A standardised CPUE analysis was used to determine factors affecting bycatch rates of ... were vessel, area, and depth. Catch rates of rattails were highest along the shelf edge (SSRUs 88.1E ... , 88.1I, 88.1K and 88.2E) in depths from 600 to 1000 m, and there was an order of magnitude difference in ... rattail catch rates between different vessels. Examination of vessel characteristics showed that catch ...
Meeting Document : WG-FSA-05/24 : Autor(es): S.L. Ballara and R.L. O’Driscoll (New Zealand)
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Incidental mortality of seabirds associated with longline fishing in Subarea 48.3 – preliminary results of scientific observations onboard the Chilean longliner, Puerto Ballena, from March to May 1996
Abstract: Estimates of the number of seabirds taken incidentally in longline fisheries on ... observations on the by-catch of seabirds during a cruise of the Chilean longliner 'Puerto Ballena' in ... Statistical Subarea 48.3. A total of 118 dead black-browed albatrosses, 3 dead grey-headed albatrosses, 46 ... particularly at risk when longlines are set during the day and/or the streamer line is malfunctioning. If ...
Meeting Document : WG-FSA-96/31 : Autor(es): Selling, J., Kock, K.-H.
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Precautionary spatial protection to facilitate the scientific study of habitats and communities under ice shelves in the context of recent, rapid, regional climate change
the Antarctic Peninsula region. One of the most evident signs of climate change has been ice shelf ... collapse; overall, 87% of the Peninsula’s glaciers have retreated in recent decades. Ice shelf collapse ... will lead to the loss of existing marine habitats and the creation of new habitats. In general, fauna ... nutrient input, there may be consequent loss of some species or communities. Colonisation of new habitats ...
Meeting Document : WG-EMM-12/34 : Autor(es): P.N Trathan, S.M. Grant (United Kingdom), V. Siegel and K.-H. Kock (Germany)
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Metabarcoding analysis of the stomach contents of the Antarctic toothfish (Dissostichus mawsoni) collected in the Antarctic Ocean
Abstract: Stomach contents of the Antarctic toothfish, Dissostichus mawsoni, collected from ... the raw reads generated by the MiSeq platform, a total of 131,233 contigs (130 operational taxonomic ... fish in subarea 88.3. At 98 % sequence identity, species names were assigned to most OTUs in this study ... , indicating the quality of the DNA barcode database for the Antarctic Ocean was sufficient for molecular ...
Meeting Document : WG-FSA-17/P03 : Autor(es): T.-H. Yoon, H.-E. Kang, S. R. Lee, J.-B. Lee, G. W. Baeck, H. Park and H.-W. Kim