Résultats de la recherche
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Progress report on the scientific data compilation and analyses in support of the planning of a potential Marine Protected Area (MPA) east of the zero meridian in the Weddell Sea (Antarctica)
6.39) as a useful way forward to achieve consensus and offered to work collaboratively with Norway, the ... of Domain 4 for submission to the Commission in 3 to 4 years. Work on this project commenced with an ... . Griffith, T. Hatterman, A. Høgestøl, Y. Kasajima, A. Lowther, S. Moreau, B. Njaastad, P. Koubbi, C. von ... Quillfeldt, T. Brey, K. Teschke and O.A. Bergstad Title: Progress report on the scientific data compilation ...
Meeting Document : SC-CAMLR-38/BG/14 : Auteur(s): G. Griffith, T. Hatterman, A. Høgestøl, Y. Kasajima, A. Lowther, S. Moreau, B. Njaastad, P. Koubbi, C. von Quillfeldt, T. Brey, K. Teschke and O.A. Bergstad
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Characteristics of krill aggregations in the South Sandwich Islands subarea in January–February 2000
million tonnes. It was shown that the removal of biomass up to a recommended precautionary limit could be ... February 2000 it was observed that krill was present in non-aggregated and scattered forms, as well as in ... patterns of krill aggregations and distribution of krill biomass density were analysed with a view to ... detecting potential fishing grounds where the recommended precautionary catch limit could be taken. Such ... tonnes. It was shown that the removal of biomass up to a recommended precautionary limit could be ... aggregation characteristics. It should be noted that the improved technologies and methodologies of data ... , may be of interest to commercial fi shing. It was in these zones that the characteristics of krill ... 2000 are comparable with those observed for the krill fi shery in March 1983 (Table 4). It should be ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 145–164 : Auteur(s): Kasatkina, S.M., A.P. Malyshko, V.N. Shnar and O.A. Berezhinsky
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An ecological risk assessment of current conservation measures for krill fishing in East Antarctica (CCAMLR Divisions 58.4.1 and 58.4.2)
measures that are relevant to Divisions 58.4.1 and 58.4.2 sufficiently mitigate the risk of a krill fishery ... disproportionately concentrating catches in areas that are also important to krill predators. In particular, this ... , crabeater seals and Adélie penguins, in parallel with the currently agreed krill biomass estimates across ... assessment found the regional risk of the current conservation measures in Divisions 58.4.1 and 58.4.2 to be ...
Meeting Document : WG-EMM-18/37 : Auteur(s): N. Kelly, L. Emmerson, S. Kawaguchi, C. Southwell and D. Welsford
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Beach debris survey Signy Island, South Orkney Islands 1999/2000
the lowest recorded (18%) and may indicate that the ban on their use aboard fishing vessels brought ... revealed that 60% had come from ships or fishing vessels and7% were from Signy Research Station. The rest ... comprised wood (11%) and items with noobvious source (22%). Of particular concern was the quantity of ... polystyrene foam whichaccounted for 31% of all items recovered and 46% of items small enough to be ingested ...
Meeting Document : SC-CAMLR-XIX/BG/06 : Auteur(s): Delegation of the United Kingdom
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Ecosystem approach
– advanced steps. 3.2.1.2 Explicit mechanisms, agreements and reporting should be developed with relevant ... and reporting should be developed to provide coherence and compatibility of research, monitoring and ... the Convention Area and areas outside the Convention Area that contain species relevant to CCAMLR ... , paragraphs 9.15 renewal of arrangements with WCPFC and CCSBT and 9.18 and 9.19 in relation to SPRFMO and ...
Page : Site Section: The Organisation
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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
commercial fishing activities should not be permitted in these habitats, and suggests that areas under ... the loss of existing marine habitats and to the creation of new habitats, with consequent changes in ... existing ice shelves in Subareas 88.3, 48.1 and 48.5 should be preserved and protected for scientific study ... highlights why commercial fishing activities should not be permitted in these habitats, and suggests that ... - ed to be felt across the Antarctic as the ozone hole heals, with a predicted warming of about 3°C ... Antarctic shelf ecosystem, with high primary production during a short summer, are likely to be among the ... that form fol- lowing ice-shelf collapse will be susceptible to colonisation by species from areas ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 139–151 : Auteur(s): Trathan, P.N., S.M. Grant, V. Siegel and K.-H. Kock
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Variation in the distribution of Antarctic krill Euphausia superba around South Georgia
island. Cluster analysis revealed that the length-frequency distributions could be grouped into 5 main ... types with relatively simple biological characteristics: cluster 1 were medium-sized year 2+ krill (mean ... probably 3+ and older (mean size 49.5 mm); cluster 4 and 5 were small krill, mostly year 1 + either with or ... ). The PCA for all cruises combined showed that there were no obvious differences in the type of krill ...
Meeting Document : WG-EMM-97/47 : Auteur(s): Daly, H.I., Murray, A.W.A., Watkins, J.L.
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An assessment of the exploratory fishery for Dissostichus spp. on BANZARE Bank (CCAMLR Division 58.4.3b) based on fine-scale catch and effort data
analyses in other exploratory toothfish fisheries should be investigated, as this study indicates that ... depletion analysis of stratified catch and effort data indicate that there is strong evidence for depletion ... result, coupled with high estimated levels of illegal, unreported and unregulated (IUU) fishing, and ... evidence of poor recent recruitment, indicates that the stock is likely to have been overfished. Several ... period. Furthermore, IUU activity seems to be increasing, with catches estimated to have exceeded the ... likely to be low (Dunn et al., 2007; Welsford et al., 2007b), it is a rea- sonable assumption that each ... longlines failed to capture any D. mawsoni, compared with 485 long- lines (75% of total effort) that ... Ground A have been declining in size with each McKinlay et al. 62 season. With little evidence that ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 55–78 : Auteur(s): McKinlay, J.P., D.C. Welsford, A.J. Constable and G.B. Nowara
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Age-structured production model for toothfish at South Georgia
decaying function of age, with three easily interpretable parameters. When only a single selectivity curve ... frequency data achieved last year, but the fit was still poor. The fit to the CPUE was also poor. With ... selectivity parameters allowed to be estimated on an annual basis the fits are substantially improved. However ... , by allowing all parameters to be estimated in this way the model is over-parameterised and regularly ...
Meeting Document : WG-FSA-SAM-05/18 : Auteur(s): A. Payne, G.P. Kirkwood, R. Hillary and D.J. Agnew (United Kingdom)
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THE SELECTION OF TRIPS BASED ON DATA METRICS FOR THE ASSESSMENT OF ANTARCTIC TOOTHFISH IN THE ROSS SEA
trips were used to define a range for various data quality metrics considered to be informative with ... informative datasets were selected comprising trips with high (above median) rates of recovery of previously ... respect to tagging data. Other trips with data quality metric values within these ranges were added to the ... dataset. Where the initial informative dataset was selected comprising trips with above median rate of tag ...
Meeting Document : WG-FSA-09/35 : Auteur(s): D.A.J. Middleton (New Zealand)