Résultats de la recherche
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Acoustic estimates of krill density at South Georgia during 11 austral summers between 1981 and 1998
Abstract: Acoustic estimates of densities of Antarctic krill, Euphausia superba, at South Georgia ... and 1994 austral summer seasons were characterised by particularly low abundances of krill. For five ... of the summers between 1990 and 1998 it was possible to calculate separate density estimates for ... north-eastern and north-western ends of South Georgia. In four of these years density was higher to the ...
Meeting Document : WG-EMM-98/51 : Auteur(s): A.S. Brierley, J.L. Watkins, C. Goss, M.T. Wilkinson and I. Everson (UK)
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Proposed allocation of research catches in Divisions 58.4.1 and 58.4.2
had notified to conduct research in the exploratory toothfish fisheries off East Antarctica, covered ... allocation of research catches in Divisions 58.4.1 and 58.4.2 Microsoft Word File: fsa-15-54.docx Approval ...
Meeting Document : WG-FSA-15/54 : Auteur(s): D.C. Welsford (Australia), R. Sarralde Vizuete (Spain) and T. Ichii (Japan)
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Measurements of fish school velocities with an acoustic Doppler current profiler
Abstract: Horizontal and vertical velocities of fish schools were measured using an acoustic ... Doppler current profiler (ADCP). To determine three orthogonal velocity vectors (east, north, and vertical ... estimates and ensemble averaged to determine the average speeds and directions of fish aggregations. The ... . Some applications may include the quantification of horizontal and vertical migration patterns of large ...
Meeting Document : WG-EMM-96/41 : Auteur(s): Demer, D.A.
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Hook selectivity in the longline fishery of Dissostichus eleginoides (Nototheniidae) off the Chilean coast
fisheries of the patagonian toothfish Dissostichus eleginoides related with the selectivity of the type and ... size of hooks used in the longlines. Original data obtained during 1991 on the coast of Valdivia, South ... East Pacific, are added. The data show that the circle hooks are far more efficient that the right ones ... . The size frequency of the population collected with straight hooks No3 and 4 are not significatively ...
Meeting Document : WG-FSA-91/11 : Auteur(s): C.A. Moreno (Chile)
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Characterisation of skate catches in the Ross Sea region
. There was no evidence of growth retardation linked with the capture and tagging event. Tag loss rates of ... (Dissostichus mawsoni) catch of about 3000 t. Skates form a small proportion of the total catch (typically 2% or ... in the Ross Sea Region, including the data collected in the two “Year of the Skate” fishing seasons ... in 2008/09 and 2009/10. The composition of the skate catch by species is uncertain; it is estimated ...
Meeting Document : WG-FSA-10/25 : Auteur(s): S. Mormede and A. Dunn (New Zealand)
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Toward a System of Marine Protected Areas in the Southern Ocean
. To continue momentum, CCAMLR Members must realize the extent of the commitment they made in 2009, and ... again in 2011 (CM 91-04) toward establishing a representative system of MPAs in the Convention Area. To ... realize this commitment, ASOC recommends that CCAMLR designate an MPA in East Antarctica this year, and in ... the Weddell Sea and the Antarctic Peninsula in 2018. Here ASOC provides an overview of these proposals ...
Meeting Document : SC-CAMLR-XXXVI/BG/32 : Auteur(s): Submitted by ASOC
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A case of giant squid attack on Antarctic toothfish Dissostichus mawsoni Norman, 1937 (Perciformes, Nototheniidae) caught on bottom-set longline in the Ross Sea
Ross Sea (East Antarctic) from the depth of 1480 m to the surface a very large squid taken a large ... Abstract: In the beginning of February 2005, during the hauling of bottom-set longline in the ... individual of Antarctic toothfish D. mawsoni (Norman, 1937) with a size of 160 cm and weight of 58 kg caught ... by a longline hook, was hauled up to the board of longliner VOLNA. Squid was very active and did not ...
Meeting Document : WG-FSA-06/P3 : Auteur(s): Petrov, A.F.
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Acoustic estimates of krill abundance at South Georgia, 1981–1998
Abstract: Acoustic estimates of abundance of the Antarctic krill, Euphausia superba, at South ... includes some previously published estimates arising from cruises where determination of krill density was ... subsidiary during other studies of the pelagic ecosystem at South Georgia. Krill abundance at the island ... and 1994 austral summer seasons were characterised by particularly low abundances of krill. For five ...
Meeting Document : WS-AREA 48-98/9 : Auteur(s): A.S. Brierley, J.L. Watkins, C. Goss, M.T. Wilkinson and I. Everson (UK)
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IMPROVING ESTIMATES OF ADÉLIE PENGUIN BREEDING POPULATION SIZE: DEVELOPING FACTORS TO ADJUST ONE-OFF POPULATION COUNTS FOR AVAILABILITY BIAS
Abstract: It is widely recognised that the interpretation of counts of penguin populations at ... times within a breeding season to minimise bias in estimates of the breeding population has long been ... the collection of adjustment data. This was recognised at the recent Predator Survey workshop, where ... the collection of adjustment data to improve estimation of penguin abundance was identified as a ...
Meeting Document : WG-EMM-09/38 : Auteur(s): C. Southwell, J. McKinlay, L. Emmerson, R. Trebilco and K. Newbery (Australia)
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Are we there yet? Evaluating and reporting progress towards a Representative System of Marine Protected Area across the CAMLR Convention Area
Abstract: In 2008, CCAMLR agreed that the establishment of a representative system of marine ... Commission can be kept informed of progress towards this goal using a relatively short list of simple ... contributions towards a RSMPA, however we are not there yet. Establishment of the proposed MPAs in Domain 1 ... , Weddell Sea and East Antarctica would make significant contribution towards a RSMPA under a scientific ...
Meeting Document : WS-SM-18/14 : Auteur(s): D.C. Welsford