Résultats de la recherche
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Hydroacoustic data obtained around Elephant Island and South Orkney Islands during austral summer 2018
Abstract: This document presents the analysis of acoustic data obtained during the austral summer ... of 2018 as a complement to finfish research in Subareas 48.1 and 48.2 using bottom trawling nets. The ... frequency of 38 kHz and a SIMRAD ES70 fishing echosounder equipped with a 120 kHz frequency transducer. The ... geographical distribution of krill concentrations and the presence of fish shoals are described in an area of ...
Meeting Document : WG-FSA-18/05 : Auteur(s): N.A. Alegría and P.M. Arana
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Address given to citizen’s marine summit, Japan By Dr I. Everson
Abstract: The main aims of CCAMLR are reviewed in an essay which discusses the advances in the ... effectiveness of harvesting, arising from developments in science and technology in comparison with the ... requirements of science to provide information for rational management. It is concluded that co-operation is ... essential between fishermen and scientists to ensure the provision of the data needed to test hypotheses ...
Meeting Document : CCAMLR-XII/BG/11 : Auteur(s): Delegation of United Kingdom
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Estimating krill recruitment and its variabiliity
Abstract: A maximum likelihood method is developed for the decomposition of krill density at ... length data into the proportion of recruits in population sampled in a net haul survey. Preliminary ... results from a series of 5 net haul surveys in the South Atlantic and the Indian Ocean sectors of the ... Southern Ocean give a mean recruitment rate for one year old krill of 0.339 with a standard deviation of ...
Meeting Document : WG-KRILL-93/12 : Auteur(s): W. de la Mare (Australia)
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CCAMLR Science – Possibilités pour l'avenir
Abstract: CCAMLR Science was launched over 20 years ago with the aim of providing mechanism to ... publicise the science done in CCAMLR and to raise the profile of CCAMLR within the international scientific ... community. A reduction in the number of papers submitted to, and published in the journal, has prompted a ... review of options for the future of CCAMLR Science. In particular, it may be timely to review the role ...
Meeting Document : SC-CAMLR-XXXIV/07 : Auteur(s): CCAMLR Secretariat
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Report on the research for Dissostichus spp. in Subarea 48.2 by the Ukraine in 2015–2019
Abstract: The five years of survey and observations of Dissostichus spp. in statistical subarea ... of the Scientific Committee and Commission. Data on the distribution of Antarctic toothfish and by ... -catch fish, biological characteristics of Antarctic and Patagonian toothfish are presented. Biomass of ... ): Delegation of Ukraine Title: Report on the research for Dissostichus spp. in Subarea 48.2 by the Ukraine in ...
Meeting Document : WG-FSA-2019/51 : Auteur(s): Delegation of Ukraine
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A noise removal algorithm for acoustic data with strong interference based on post-processing techniques
Abstract: The use of fishing-vessel-based acoustic data has been recognized by SC-CAMLR as an ... important way to estimate the distribution and relative abundance of Antarctic krill (Euphausia superba ... ), yet the quality and even the utility of the data may be seriously degraded by interferences due to the ... lack of synchronization device for the acoustic instruments equipped on some of the vessels. A simple ...
Meeting Document : SG-ASAM-15/02 : Auteur(s): X. Wang, X. Zhao and J. Zhang (People’s Republic of China)
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The Weddell Sea MPA revisited: questions, comments and suggestions
Abstract: This paper aims to bring to light specific issues which precluded support by Norway of ... the Weddell Sea MPA proposal tabled to CCAMLR in 2016 by the delegation of the European Union and its ... Member States. We present results from Marxan and other analyses conducted for the purpose of evaluating ... aspects of the Weddell Sea MPA planning process which were integral to the development of the proposal ...
Meeting Document : WG-EMM-17/42 : Auteur(s): M. Bristow and O.R. Godø
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VARIABILITY IN KRILL BIOMASS LINKS HARVESTING AND CLIMATE WARMING TO PENGUIN POPULATION CHANGES IN ANTARCTICA
populations, many of which were nearly extirpated by humans. This region is also among the fastest-warming ... . One hypothesis guiding ecological interpretations of changes in top predator populations in this ... declines in “ice-loving” species by decreasing their winter habitat, while populations of “ice-avoiding ... ” species have increased. However, 30 y of field studies and recent surveys of penguins throughout the WAP ...
Meeting Document : WG-EMM-11/P1 : Auteur(s): W.Z. Trivelpiece, J.T. Hinke, A.K. Miller, C.S. Reiss, S.G. Trivelpiece and G.M. Watters
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The US commercial krill fishery in Area 48: development, fishing patterns, and decision making
decision making processes involved in harvesting krill by the U.S. fishery. Because the Captain of the Top ... north of South Georgia; in 2001, all fishing was conducted off the South Shetland Islands and Bransfield ... Strait. In 2002, fishing operations were carried out off the Antarctic Peninsula, west of Elephant Island ... ; and northwest of the South Orkney Islands. Information on set locations, effort, yield, catch rates ...
Meeting Document : WG-EMM-02/18 : Auteur(s): C.D. Jones and M. Hull (USA)
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FIELD IDENTIFICATION GUIDE TO HEARD ISLAND AND MCDONALD ISLAND (HIMI) BENTHIC INVERTEBRATES
Abstract: At CCAMLR-XXVI the Working Group on Fish Stock Assessment (WG-FSA) noted a lack of ... specific reference material for the identification of benthic invertebrates in areas specific to which ... observers carry out their activities (SC-CAMLR-XXVI: Annex 5, paragraph 6.32). To improve the standard of ... observer identifications and also to assist in the identification of vulnerable areas, the Scientific ...
Meeting Document : WG-FSA-08/59 : Auteur(s): T. Hibberd and K. Moore (Australia)