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Ciencia
attention on scientific study as an essential basis for protection and rational use of Antarctic marine ... living resources. In response to a request from the ATCPs, the Scientific Committee on Antarctic Research ... marine ecosystem as a basis for the future management of potential living resources ’. The scientific ... outcomes of the BIOMASS program laid the foundation for the primary role of science in the CAMLR Convention ...
Page : Site Section: Science
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THE RISK TO FISHERY PERFORMANCE ASSOCIATED WITH SPATIALLY RESOLVED MANAGEMENT OF ANTARCTIC KRILL (EUPHAUSIA SUPERBA) HARVESTING
densities for efficient exploitation. Finally, the distribution of both catch and fishing effort over an ... Abstract: The ecosystem approach to fisheries attempts to define objectives for the target ... species, the wider ecosystem and, critically, the fishery itself. Proposals for implementing this approach ... often include spatial restrictions on harvesting and it is therefore important to understand how these ...
Meeting Document : WG-EMM-09/P10 : Autor(es): S. Hill, P. Trathan and D. Agnew
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Important Bird Areas (IBAs) in Antarctica
submitted a Working Paper (WP) and an Information Paper (IP) on Important Bird Areas to the Committee for ... recently completed analysis on IBAs based on the consistent application of global criteria for bird ... (IBAs) in Antarctica and IP 27 Important Bird Areas (IBAs) in Antarctica). These papers reported on the ... United States, on behalf of the original sponsors of the papers, presents this short paper to inform WG ...
Meeting Document : WG-EMM-15/32 : Autor(es): P.A. Penhale (USA)
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Conservation Measure Conservation Measure 21-02 (2010)
Exploratory Fisheries Limitations: Except for waters adjacent to the Kerguelen and Crozet Islands ... Except for waters adjacent to the Prince Edward Islands Adopted at Meeting: CCAMLR-XXIX Period in Force ... Article IX of the Convention: 1. For the purposes of this conservation measure, exploratory fisheries ... proposed for the forthcoming season; (b) biological information on the target species from ... principles set forth in Article II, hereby adopts the following conservation measure in accordance with ... are defined as follows: (i) an exploratory fishery shall be defined as a fishery that was ...
Conservation Measure : 21-02 (2010)
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Conservation Measure Conservation Measure 21-02 (2009)
Exploratory Fisheries Limitations: Except for waters adjacent to the Kerguelen and Crozet Islands ... Except for waters adjacent to the Prince Edward Islands Adopted at Meeting: CCAMLR-XXVIII Period in ... accordance with Article IX of the Convention: 1. For the purposes of this conservation measure ... an estimate of the fishery’s potential yield; (b) to review the fishery’s potential impacts on ... and maximum catch levels proposed for the forthcoming season; (b) biological information on the ... Scientific Committee for the fishery. 6. On the basis of the information submitted in accordance with ...
Conservation Measure : 21-02 (2009)
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Modeling the growth dynamics of Antarctic krill
losses due to feeding and digestion, and an activity-based respiration factor. Positive net production ... of model coefficients were constructed from an analysis of field and laboratory measurements provided ... in the current literature. The model was forced with an environmental time series of food (pelagic ... conditions representative of phytoplankton concentrations observed on the inner and outer shelf, respectively ...
Meeting Document : WG-EMM-96/68 : Autor(es): Lascara, C.M., Hofmann, E.E.
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Joint Polish/American hydroacoustic survey of Elephant Island and the vicinity of King George Island, 1988
was 39k tonnes for a total of 299k tonnes in the combined areas. The estimated 200 kHz survey data ... bongo-net hauls (reduced speed from 6-8 knots to 3 knots for 45 min) spaced approximately every 30 n ... kHz was also used. The 50 kHz envelope detected signal was recorded in FM mode on an instrument ... . One-min estimates then were recorded on magnetic disk files for further analyses. Estimates of ... for calculations of density and biomass. This was done on the basis of Kristensen and Dalen (1986 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 357–377 : Autor(es): Macaulay, M.C.
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Depletion experiment of Dissostichus eleginoides stock in the south of South Georgia Island (Antarctica)
Abstract: Ten hauling for Dissostichus eleginoides were performed from the 11lth to the 21 of ... projected to 3244.8 nm2, obtaining an estimated biomass of 937.8 ton. Due to statistical limitations of ... these data, another analisis based in the density (Kg/nm2) on the fished area was used. The positions ... given by the vessel were confirmed with information obtained from an automatic position system (ARGOS ...
Meeting Document : WG-FSA-94/31 : Autor(es): P. Rubilar, C.A. Moreno (Chile) and J. Ashford (United Kingdom)
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Estimating Antarctic krill density from multi-beam observations using distance sampling methods
Abstract: The Scientific Committee has requested SG-ASAM to provide advice on the collection and ... multi-beam sonars. Here I highlight a recently published analysis technique- an adaptation of distance ... sampling theory- that provides a general means for estimating krill density and biomass from vertically ... oriented multi-beam echo-sounder data. I describe an extension to this approach that may, subject to the ...
Meeting Document : SG-ASAM-12/05 : Autor(es): M.J. Cox (Australia)
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Evidence to support the annual formation of growth zones in otoliths of Antarctic toothfish (Dissostichus mawsoni)
, sagittal otoliths were examined from D. mawsoni that had been injected with oxytetracycline some years ... juvenile D. mawsoni. Mean fish lengths at ages 0.5, 1.5, 2.5, and 3.5 years were estimated to be 14, 28, 37 ... sample of data that was large but lacked any fish younger than 3.5 years. Counting translucent zones in ... the otoliths of D. mawsoni appears to be a valid method for determining the age of this species ...
Meeting Document : WG-FSA-02/33 : Autor(es): P.L. Horn, C.P. Sutton (New Zealand) and A.L. DeVries (USA)