Search results
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Broadbandwidth total target strength measurements of Antarctic krill (Euphausia superba) from reverberation in a cavity
Abstract: Total scattering cross-sections (st) of Antarctic krill, Euphausia superba, were ... strengths (??10log(??4?) t TTS), were measured from groups of 57 to 1169 krill (average standard length ... omnidirectional emitter into one of three glass carboys containing groups of krill swimming in 9.3, 19.3 or 45.9 l ... of seawater (0.6??temperature??3.6 °C). Between each pulse, the krill moved within the fixed-boundary ...
Meeting Document : WG-EMM-02/49 : Author(s): D.A. Demer and S. G. Conti (USA)
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High densities of pterobranchs and sea pens encountered at sites in the South Orkney Islands (Subarea 48.2): two potential VMEs
Abstract: High densities of pterobranchs (Phylum Hemichordata: Class Pterobranchia) and sea pens ... encountered at sites on the shelf of the eastern South Orkney Islands. The details of these encounters ... , utilizing occurrence and abundance in bottom trawl catches, are provided. The distributions of standardized ... densities for these taxa reveal at least one station location for each taxa with anomalously high levels of ...
Meeting Document : WG-EMM-10/14 : Author(s): S.J. Lockhart and C.D. Jones (USA)
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Abundance of Patagonian toothfish (D. eleginoides) at Macquarie Island estimated from tagging studies during 1995/96 fishing season
presents an analysis of a tag-recapture experiment carried during the Macquarie Island fishery for this ... the tags being released at various times throughout the season, and the effects of the removals by ... obtained for the pre-fishing abundance of the population in the season of 996 000 fish. However, this is ... adjusted to 901 000 fish if a small number of recovered but unreported tags are taken into account. Author ...
Meeting Document : WG-FSA-96/39 : Author(s): de la Mare, W., Williams, R.
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An iterative model to construct an age-length key to assess the age composition of a new fishery for Dissostichus eleginoides in Chilean waters
Abstract: Traditional calculation of catch age composition estimate requires that the age-length ... is capable of providing biased estimates of age distribution. By using the iteration algorithm is ... with the aplication of a single age-length key to all monthly length distribution using the nonlinear ... different from the one obteined by use of traditional method Author(s): H. Robotham V. and Z. Young U ...
Meeting Document : WG-FSA-92/23 Rev. 1 : Author(s): H. Robotham V. and Z. Young U. (Chile)
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On interim distribution of the trigger level in the fishery for Euphausia superba in Statistical Subareas 48.1, 48.2, 48.3 and 48.4
Abstract: Taking into account the practice and current state of krill fishery in Area 48, Ukraine ... proposed to upgrade the Conservation Measure 51-07 in order to redistribute the trigger level of catch in ... additional precautional measures to avoid interceptance of krill fishery and preadors consumption needs ... establishing season limitations of close to shore fishery. New revision will still enable to follow the ...
Meeting Document : WG-EMM-16/56 : Author(s): G. Milinevskyi and K. Demianenko
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Differences in distribution and population structure of krill (Euphausia superba) between penguin and fur seal foraging areas near Seal Island
areas of krill (≥250g/m2) were rather limited. In contrast, fur sea! foraging areas were formed in ... . 2-3 km in horizontal distance) of higher densities (≥250g/m2). In the inshore foraging areas krill ... vertical migration, staying close to the surface throughout the day. As for body size and maturity of krill ... , in the inshore foraging areas middle-sized krill (modal length 43 mm), which consisted mainly of ...
Meeting Document : WG-KRILL-92/27 : Author(s): T. Ichii, H. Ishii (Japan), J.L. Bengtson, P. Boveng, J.K. Jansen (USA) and M. Naganobu (Japan)
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Intra-archipelago moult dispersion of southern elephant seals at the Prince Edward Islands, southern Indian Ocean
), 38 of which could be individually identified by resighting their tag numbers. The majority of the MI ... . The attendance rate of the known individuals at their natal island during the annual moult was only 40 ... PEI, and 80 ± 4% for the simulation. Seasonal and annual absences of seals from MI violate the ... ‘homogeneity of capture’ assumption of mark–recapture models. When multiple sightings during any year are ...
Meeting Document : WG-EMM-10/P16 : Author(s): W.C. Oosthuizen, M.N. Bester, P.J.N. de Bruyn and G.J.G. Hofmeyr
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Lessons from CCAMLR on the implementation of the ecosystem approach to managing fisheries
Abstract: The Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) is ... can be developed to decide on spatial management strategies for fisheries so that predators of target ... species are not disproportionately affected as a result of spatial and/or temporal dependencies of ... assessing the status of target species and their predators, but also in designing cost-effective management ...
Meeting Document : WG-EMM-12/P06 : Author(s): A.J. Constable
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A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997–98 to 2013–14
Abstract: This report summarises the timing, depth, and location of fishing together with the ... biological aspects and catch of Antarctic toothfish up to an including the 2014 season. In 2014, the Ross Sea ... 12 years with a slight decline in the past two years. Length frequency distributions of Antarctic ... strong mode of smaller (90–120 cm TL) toothfish present in the Slope fishery from 2010–2013 was not ...
Meeting Document : WG-FSA-14/52 : Author(s): M. Stevenson, S. Hanchet, S. Mormede and A. Dunn (New Zealand)
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Proposal of the Russian Federation to establish research TAC for closed SSRU in Subareas 88.1 and 88.2
Abstract: Over the last three years at the meetings of WGs and CCAMLR SC a question about ... research TAC in open and closed SSRUs of the Ross Sea has been raised. In accordance with established ... biggest TAC in the Ross Sea – from SSRUs HIK. This proposal is about establishing of research TAC in all ... closed SSRUs of the Ross Sea and the Amundsen Sea. Author(s): Delegation of the Russian Federation Title ...
Meeting Document : WG-SAM-15/20 : Author(s): Delegation of the Russian Federation