Résultats de la recherche
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Satellite tracking of black-browed and light-mantled sooty albatrosses from Heard Island and potential interactions with fisheries
foraged on the shelf break within 150 km of Heard Island, and focused 75% of their foraging time in waters ... date in the longline fishery), although in 2005 seven black-browed albatrosses were killed in the ... a further 5% went beyond either EEZ into the high seas north and east of Heard Island. In contrast ...
Meeting Document : WG-FSA-05/14 : Auteur(s): K. Lawton, R. Kirkwood and G. Robertson (Australia)
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Antarctic fur seal population dynamics update and assessment of census error at SSSI No. 32, Livingston Island, South Shetlands, Antarctica (2000/2001)
of Antarctic fur seals, Arctocephalus gazella, in the South Shetland Archipelago. Since all censuses ... was developed for assessing uncertainties in the estimates of the counts (inter and intra-observer ... identified and corresponded to beaches in which variation cannot be entirely attributed to inter-observer ... censuses in a considerable way. These factors should all be assessed and taken into account when ...
Meeting Document : WG-EMM-01/49 : Auteur(s): R. Hucke-Gaete (Chile)
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EFFECT OF STERN-SETTING TUNNEL ON THE SINK RATE OF INTEGRATED WEIGHT LONGLINE (IWL)
steel tube, built in to the longliner during a dry-dock refit. The tube angles downwards from where the ... line exits the baiting machine, which is positioned in the aft section of the stern setting deck, to ... longlines, conforming to the CCAMLR standard specified in conservation measure 24-02, is planned to be ... tested in a series of sets using time-depth recorders during current sea-trials and approximately three ...
Meeting Document : WG-FSA-08/38 : Auteur(s): I. Hay and G. Robertson (Australia)
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Net sample validation of acoustic techniques used to identify and size Antarctic krill
species groups has been attempted using differences in echo strength at two acoustic frequencies (ΔMVBS ... ). Here we compare net and acoustic data from 2 cruises around South Georgia in 1996 in order to assess ... echo-charts were also identified as krill on the basis of their difference in backscatter at 38 and 120 ... frequency data and compared with that obtained in net hauls. This comparison revealed that a simplified bent ...
Meeting Document : WG-EMM-97/46 : Auteur(s): Watkins, J.L., Brierley, A.S.
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Trophic relations of the cephalopod Martialia hyadesi (Teuthoidea: Ommastrephidae) at the Antarctic Polar Front, Scotia Sea
Sea in February 1989. The dissected stomachs of 61 specimens were classified according to fullness and ... items in the squid's diet were the myctophid fishes Krefftichthys anderssoni and Electrona ... squid mantle length. Over the size range of squid in the sample there was no relationship between size ... preference was related to squid size. The prevalence of copepod-feeding myctophids in the diet of this squid ...
Meeting Document : SC-CAMLR-XI/BG/11 : Auteur(s): Delegation of United Kingdom
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Quantitative stock survey and some biological and morphometric characteristics of the deep-sea red crab Geryon quinquedens off south west Africa
Abstract: In order to assess the abundance of the red crab Geryon quinquedens, two otter-trawl ... cruises were undertaken in July and September 1978, on the continental slope off South West Africa. A ... width, whereas the mode for males was at 11.2 cm. In general. larger animals tended to inhabit shallower ... states indicated that males were predominantly in the inter-moult stage while most females were either ...
Meeting Document : WS-CRAB-93/22 : Auteur(s): C.J. De B. Beyers and C.G. Wilke (South Africa)
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The diet of Antarctic fur seals Arctocephalus gazella during the breeding season at Heard Island
Heard Island fed mainly on fish with an average 95.2% of scats in monthly collections containing fish ... and skate (Bathyraja sp.), the latter being found in over 60%-of scats in October and November. The ... . There the increase is thought to be due to the high availability of krill E. superba, but, in the ... on Heard Island grounds must be considered in this light. Author(s): Delegation of Australia Title ...
Meeting Document : SC-CAMLR-VIII/BG/53 : Auteur(s): Delegation of Australia
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An initial examination of using CPUE as a fishery performance index for the krill fishery
difference between this overall mean and the mean for each year in which the vessel fished. An overall ... Abstract: Early analyses of CPUE in the krill fishery concluded that it was not a useful index of ... extent to which these reflect changes in krill abundance are key elements of developing feedback ... period 2001 – 2016 (up to 26/5/2016) in Subareas 48.1, 48.2 and 48.3 to determine whether CPUE might be ...
Meeting Document : WG-EMM-16/10 : Auteur(s): CCAMLR Secretariat
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Can the chemistry of otolith nuclei determine population structure of Patagonian toothfish Dissostichus eleginoides?
to South Georgia in the Southern Ocean. Concentrations of 55Mn, 88Sr, and 137Ba, ratioed to 42Ca ... , showed a sharp population boundary in the vicinity of the Polar Front, between South Georgia and the ... population structure in Patagonian toothfish, demonstrating that otolith nucleus chemistry can discriminate ... between populations even in fully marine environments. Moreover, the nucleus chemistry indicated ...
Meeting Document : WG-FSA-06/P2 : Auteur(s): Ashford, J.R., A.I. Arkhipkin and C.M. Jones
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Proposal to standardise the submission of meeting documents to working groups
Committee, WG-EMM and WG-FSA (including ad hoc WG-IMAF). In the Secretariat’s view, the guidelines would ... benefit from some standardisation of the Working Group-specific differences in relation to: submission ... in preparing information and documents for meetings. The Secretariat plans to submit a similar ... proposal to WG-FSA for consideration at its meeting in 2005. Author(s): Secretariat Title: Proposal to ...
Meeting Document : WG-EMM-05/10 : Auteur(s): Secretariat