Résultats de la recherche
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Predicting fishing ground accessibility in the Antarctic Weddell Sea
Abstract: Sea ice is a major constraint of fishery performance in the Southern Ocean seasonal sea ... establish statistical models of (i) accessibility, i.e. the probability that a particular area is navigable ... by fishery vessels at a given time, and of (ii) repeated accessibility, i.e. the probability that a ... conditions almost 50% of the entire WSMPA Planning Area is not suitable for fishery vessels at any time of ...
Meeting Document : WG-SAM-18/01 : Auteur(s): H. Pehlke, K. Teschke and T. Brey
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Is CCAMLR science keeping up?
and update its conservation measures in the light of emerging environmental changes, latest scientific ... those developed by experts from outside of the ‘CCAMLR club’. Two examples were considered: the ... protection of VMEs and the mitigation of marine debris and plastic pollution. This consideration concluded ... recommends that CCAMLR: Implement a process to ensure regular review of conservation measures that are not ...
Meeting Document : SC-CAMLR-XXXVII/BG/29 : Auteur(s): Submitted by ASOC
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Research plan for the exploratory longline fishery for Dissostichus spp. in Divisions 58.4.1, 58.4.2 and Subarea 48.6 in 2014/2015 (including CTD data in 88.1, 88.2)
Abstract: Most things related to Dissostichus spp. in the eastern side of Antarctic has not been ... sizes were vulnerable with a big range of about 1,000-2,000 t per SSRU in 58.4.1 and 100-1,500 t per ... -web of Dissostichus spp. has started to be studied in the southern Ross Sea. Some studies on biology ... of the fish have been evaluated, but those are not enough to assess the stocks and consider proper ...
Meeting Document : WG-SAM-14/21 : Auteur(s): Delegation of the Republic of Korea
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Modelling krill recruitment
Abstract: A method is developed for using observed values of the mean proportion of recruits and ... its variance to model recruitment in a krill population in terms of numbers of recruits. The method ... includes the calculation of natural mortality and other parameters consistent with the observed ... proportional recruitment parameters. A procedure is given for generating families of recruitment functions ...
Meeting Document : WG-KRILL-93/13 : Auteur(s): W. de la Mare (Australia)
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POTENTIAL PHENOLOGICAL RESPONSES TO ENVIRONMENTAL VARIABILITY AND CHANGE FOR ADÉLIE PENGUINS
Abstract: Phenological changes are touted to be an early indication of species response to ... environmental change and have been reported for a range of species around the globe. In Antarctica, there is a ... clear indication of phenological changes for the Adélie penguin (Pygoscelis adeliae) with contrasting ... trends in clutch initiation dates reported for populations on opposite sides of Antarctica. Such shifts ...
Meeting Document : WG-EMM-11/33 : Auteur(s): L. Emmerson and C. Southwell (Australia)
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Fishing equipment, marine debris and hydrocarbon soiling associated with seabirds at Bird Island, South Georgia, 2006/07
Abstract: This report describes and quantifies occurrences of fishing gear, marine debris and oil ... fourteenth such annual report. As in previous years, more items of marine debris and fishing gear (mostly ... . The total number of items encountered (n =170) increased after a recent short-term decline with large ... numbers of fishing hooks and line (n=70) recovered from wandering albatross chick regurgitations ...
Meeting Document : SC-CAMLR-XXVI/BG/18 : Auteur(s): Delegation of the United Kingdom
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Products for human consumption from krill (Euphausia superba)
months at-30°C and one month at-20°C. Dried krill of good quality could be prepared by blanching krill in ... boiling 5% Na Cl solution for 5 minutes and then sundrying. Incorporation of krill mince even at a level ... of 10% to fish mince during production of surimi and fish paste affected the quality. Though a prawn ... like flavour was imparted on mixing krill mince with fish mince during preparation of fish cutlet and ...
Meeting Document : WG-EMM-98/41 : Auteur(s): J. Joseph, V. Muraleedharan, R. Thankamma and C.N. Ravishankar (India)
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Light levels experienced by foraging Antarctic fur seals, Arctocephalus gazella
Abstract: This study examined the feasibility of using time depth recorders (TDRs) to measure ... ) 7.1 ± 0.7 d. A total of 25657 dives were recorded with a mean dive depth and duration of 18.0 ± 3.6 m ... and 49.5 ± 6.9 s, respectively. Depending on time of day, fur seals experienced between 6 and 57 % of ... recorded strong light attenuation in the top 50 m of the water column. The mean attenuation coefficient was ...
Meeting Document : WG-EMM-99/28 : Auteur(s): D.J. McCafferty, I.L. Boyd and T.R. Walker (UnitedKingdom)
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A preliminary population status model for the Patagonian toothfish, Dissostichus eleginoides, on the Kerguelen Plateau (Divisions 58.5.1 and 58.5.2) using CASAL
Patagonian toothfish (Dissostichus eleginoides) fishery in the Southern Ocean outside of the Atlantic sector ... . Analysis of genetic, demographic and tagging data indicates that toothfish form a metapopulation in this ... region. This paper describes the development of a CASAL model incorporating data from research ... step forward in understanding the dynamics and current status of toothfish across the Kerguelen Plateau ...
Meeting Document : WG-SAM-11/20 : Auteur(s): S.G. Candy (Australia), A. Relot, G. Duhamel (France), D.C. Welsford, A.J. Constable, T.D. Lamb (Australia), P. Pruvost and N. Gasco (France)
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Krill caught by predators and nets: differences between species and techniques
Abstract: Samples of Antarctic krill collected from six seabird species and Antarctic fur seal ... the same time. The length-frequency distribution of krill was broadly similar between predators and ... that foraging techniques were more important than foraging location in influencing the type of krill in ... this time of year may reflect some combination of selectivity by predators and superior escape ...
Meeting Document : WG-EMM-96/09 : Auteur(s): Hill, H.J., Reid, K., Trathan, P.N., Croxall, J.P.