Resultados de la búsqueda
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Standing stock estimates of finfish biomass from the 2002 Polarstern bottom trawl survey around Elephant Island and the South Shetland Islands (Subarea 48.1) with some notes on the composition of catches taken north of Joinville Island – D’Urville Island
and the South Shetland Islands in January – February 2002 in close collaboration with the U.S ... results obtained in 1998 and 2001 for most species. Length compositions in the most abundant species ... resembled closely those in previous years. The proportion of juvenile G. gibberifrons, the most abundant ... species in the region, decreased significantly since 1998. No indication was found for the presence of a ...
Meeting Document : WG-FSA-02/24 : Autor(es): K.-H. Kock (Germany), C.D. Jones (USA), J. Appel (Germany), G. von Bertouch (CCAMLR Secretariat), D.F. Doolittle (USA), M. la Mesa (Italy), L. Psenichnov (Ukraine), R. Riehl (Germany), T. Romeo (Italy), S. Schöling (Germany) and L. Zane (Italy)
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BEACH DEBRIS SURVEY AT CAPE SHIRREFF, LIVINGSTON ISLAND, DURING THE ANTARCTIC SEASON 1996/97
occurred in all previous seasons with monitoring activities, plastic was the principal item (1517 pieces ... ) 0,40/0. Of the plastic items, those used in fisheries (strapping bands 207, ropes 205, and net pieces 9 ... articles/m2 in 1993/94 to 1.02 in 1994/95, 1.52 in 1995/96, and diminished to 0.46 in 1996/97. For the ... first time it was observed an important presence of pieces (708) of expanded polyestirene (PE) with a ...
Meeting Document : CCAMLR-XVI/BG/35 : Autor(es): Delegation of Chile
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Albatross populations: status and threats
assessed where sufficient data are available. Despite increased efforts in population monitoring, the ... status (i.e.. population trends) of two-thirds of the world's ca. 150 albatross populations remain ...
Meeting Document : WG-FSA-97/28 : Autor(es): Gales, R.
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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 : Autor(es): 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 : Autor(es): 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 : Autor(es): 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 : Autor(es): 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 : Autor(es): 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 : Autor(es): 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 : Autor(es): 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)