Résultats de la recherche
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Albatross populations: status and threats
presented; population trends are assessed where sufficient data are available. Despite increased efforts in ... population monitoring the status (i.e. population trends) of two-thirds of the worlds ca. 150 albatross ...
Meeting Document : SC-CAMLR-XV/BG/21 : Auteur(s): Submitted by SCAR
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Lead-radium dating provides a framework for coordinating age estimation of Patagonian toothfish (Dissostichus eleginoides) between fishing areas
estimates range from approximately 20 to more than 50 years. In this study, lead-radium dating provided ... zones in transverse otolith sections, and longevity estimates exceeding 30 years. Lead-radium dating ... Central Ageing Facility (CAF), using different age estimation techniques. For CQFE, under-ageing of ca ... problems in coordinating age estimation between geographically separated fish stocks, and provided a ...
Meeting Document : WG-FSA-11/P01 : Auteur(s): A.H. Andrews, J.R. Ashford, C.M. Brooks, K. Krusic-Golub, G. Duhamel, M. Belchier, C.C. Lundstrom and G.M. Cailliet
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Proposal of extension of research block 48.6_2 to complete planned research and examine the habitat model and the stock structure
its southeastern bank (south of ca. 55.2°S) with higher fish densities but scarce in the northern area ... model and elucidate stock structure. The distribution of densities (catch per haul in 20-minute grid) of ... Dissostichus mawsoni is shown in Figure 1. The research operation for the block 48.6_2 has been concentrated in ... tonnes) since the current research block was set in 2013. Thus, unutilized portions of catch limit were ...
Meeting Document : WG-SAM-16/08 : Auteur(s): T. Namba, T. Ichii and K. Taki
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Effects of orientation on acoustic scattering from Antarctic krill at 120 kHz
Cruz, CA. Individual animals were suspended in front of the transducers, were only loosely constrained ... ) were made at a frequency of 120 kHz in a chilled insulated tank at the Long Marine Laboratory in Santa ... the need for better in situ behavioral data to properly interpret acoustic survey results. A generic E ...
Meeting Document : WG-EMM-99/42 : Auteur(s): D.E. McGehee (USA), R.L. O’Driscoll (New Zealand) and L.V. Martin Traykovski (USA)
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Evaluation of Antarctic krill biomass and distribution off the South Orkney Islands 2011-2015
high, in the range 100-300 g/m 2 based on the 120 kHz recordings, and a total estimated biomass of ca ... early in the fishing season (January/February), using two different krill fishing vessels as platforms ... assessments, but the frequencies operated varied between vessels and years. In addition, the survey coverage ... has varied between years in particular due to ice. In order to allow for comparison of distribution ...
Meeting Document : WG-EMM-15/54 : Auteur(s): G. Skaret, B.A. Krafft, L. Calise (Norway), J. Watkins (UK), R. Pedersen and O.R. Godø (Norway)
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MODELING PREDATION BY TRANSIENT LEOPARD SEALS FOR AN ECOSYSTEM-BASED MANAGEMENT OF SOUTHERN OCEAN FISHERIES
species and their dependent predators. This requires modelling the uncertainty in such processes as ... choice and consumption reflected seasonal changes in leopard seal population size and structure, size ... energy, IE), but ca. 12–16% of the local gentoo penguin population (20% IE). Antarctic krill (28% IE ... is important to integrate the predator needs as natural mortality of its prey in models to set prey ...
Meeting Document : WG-EMM-09/P08 : Auteur(s): J. Forcada, D. Malone, J.A. Royle and I.J. Staniland
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Estimating the biodiversity of Planning Domain 5 (Marion and Prince Edward Islands – Del Cano – Crozet) for ecoregionalisation
. The workshop focusing on Planning Domain 5 was held in St Pierre, La Réunion, France from 15th May to ... Abstract: The CCAMLR MPA Workshop on Marine Protected Areas, held in Brest (France) in August ... , the Del Cano Rise and the Crozet Archipelago in the north. It also includes the Ob and Lena seamounts ... meeting on the northern part of Planning Domain 5, which was held in South Africa in 2008, organized and ...
Meeting Document : WG-EMM-12/33 Rev. 1 : Auteur(s): P. Koubbi (France), R. Crawford (South Africa), N. Alloncle, N. Ameziane, C. Barbraud, D. Besson, C.-A. Bost, K. Delord, G. Duhamel (France), L. Douglass (Australia), C. Guinet (France), G. Hosie (Australia), P.A. Hulley (South Africa), J. O. Irisson (France), K.M. Kovacs (Norway), R. Leslie, A. Lombard, A. Makhado (South Africa), C. Martinez (France), S. Mormede (New Zealand), F. Penot (France), P. Pistorius (South Africa), P. Pruvost (France), B. Raymond (Australia), E. Reuillard, J. Ringelstein (France), T. Samaai (South Africa), P. Tixier (France), H.M. Verheye (South Africa), S. Vigetta (France), C. von Quillfeldt (Norway) and H. Weimerskirch (France)
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SUMMARY OF VME NOTIFICATIONS MADE UNDER CONSERVATION MEASURES 22-06 AND 22-07
marine ecosystems (VMEs) are described in Conservation Measures (CM). Notifications are made under CM 22 ... -07 in the case of encounters with potential VMEs during the course of bottom fishing, and under CM 22 ... -06 in other cases such as during research surveys. Notifications are held in the Secretariat’s VME ... arising from research surveys (CM 22-06): 17 notifications in Subarea 48.1; 13 notifications in Subarea ...
Meeting Document : WG-EMM-11/07 : Auteur(s): Secretariat
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Analysis of sea-ice concentration of 48.6_4 and _5 with remote sensing data during the latest four seasons
trace in 2015/16 season (the detailed trace will be presented at the PowerPoint slide in the WG-SAM-16 ... lowest in 2016, and Japan and South Africa vessels has conducted fishing operation as they scheduled and ... completed almost all the catch limit allocated. Figure 3 focused the sea-ice dynamics in and around block ... block except for the southern part near the continent in February 1st (Figure 3). Shinsei maru No. 3 had ...
Meeting Document : WG-SAM-16/42 Rev. 1 : Auteur(s): T. Namba, K. Taki and T. Ichii
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Preliminary assessment of the exploratory fishery for Dissostichus spp. on BANZARE Bank (Division 58.4.3b), based on the analysis of fine-scale catch and effort data
Abstract: In 2006 the CCAMLR scientific committee noted several features of exploratory ... Dissostichus fisheries in the southern Indian Ocean (58.4) which gave cause for concern as to the status of the ... resource in this area, and the lack of a scientific basis for setting catch limits in these areas (SC-CAMLR ... XXV, paragraphs 4.184-4.192). In its management advice for this and other exploratory fisheries, the ...
Meeting Document : WG-FSA-07/44 : Auteur(s): J.P. McKinlay, D.C. Welsford, A.J. Constable and G.B. Nowara (Australia)