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A RE-APPRAISAL OF THE TOTAL BIOMASS AND ANNUAL PRODUCTION OF ANTARCTIC KRILL
and length frequency (KRILLBASE) yield a summer distributional range of ~19 x106 km2 and a mean total ... is estimated conservatively at 342-536 Mt y-1, based on three independent methods. These are high values ... fishery, our net-based data help to set a conservative estimate of total krill biomass. Author ... frequency (KRILLBASE) yield a summer distributional range of ~19 x106 km2 and a mean total abundance ...
Meeting Document : WG-EMM-08/17 : Author(s): A. Atkinson (United Kingdom), V. Siegel (Germany), E.A. Pakhomov (South Africa), M.J. Jessopp (United Kingdom) and V. Loeb (USA)
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Second Performance Review of CCAMLR – Final Report of the Panel
. Commission for the Conservation of Antarctic Marine Living Resources Commission pour la conservation de la ... 2 Delivering CCAMLR’s conservation objective/general context .......... 10 Recommendation ... .......................................... 37 (iii) Acronyms ACAP Agreement on the Conservation of Albatrosses and Petrels ARK ... Convention on Biodiversity CCAMLR Commission for the Conservation of Antarctic Marine Living Resources ... placed in the public domain on the CCAMLR website. The PR2 Report was received as the work of the Panel ... Description / Abstract: At its meeting in 2017, the Commission requested that the PR2 Report be ...
Document : Site Section: Publications
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Comparison of age readings from scales and otoliths of the Patagonian toothfish (Dissostichus eleginoides) from South Georgia
m (Moreno, 1991), with the smallest specimens being found above 500 m. An increase in mean length of fish ... Toothfish from South Georgia Table 1: Distances from otolith nucleus (Mean O.R.) and scale nucleus (Mean ... is the main result of growth. Mean O.R. 294.35 460.41 572.69 656.44 727.50 802.09 877.29 934.41 ... ; parameters were calculated using the radius-age method (Aubone and Hemandez, 1996). RESULTS Mean S.R ... Paper Title: Comparison of age readings from scales and otoliths of the Patagonian toothfish ... compared for 105 specimens of the Patagonian toothfish (Dissostichus eleginoides) from the South Georgia ... region (Subarea 48.3). In 44% of specimens, age readings from both structures were identical. A Wilcoxon ... test for paired data (Ts = 0.256, n = 59) conducted on the remaining 56% showed that differences in age ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 191–203 : Author(s): Cassia, M.C
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Variability of krill fishery operations in Subarea 48.2 in relation to fishing methods: spatial–temporal distribution of CPUE and of fishing efforts
values of standardized CPUE indices in the Subarea 48.2 for the last 25 years. The paper provides the ... performance requires knowledge of krill distribution in the fishing grounds with special attention to krill ... in Subarea 48.2 with special attention to the period 2006-2011 which is characterized by the highest ... to differences between national fleets. Our results provide the evidence that ‘high CPUE’ regime’ in ...
Meeting Document : WG-EMM-14/22 : Author(s): S. Kasatkina (Russia)
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Abundance of larvae and assessment of recruitment size of Carlsberg lantern fish (Electrona carlsbergi Tåning, 1932) - (family myctophidae) in Southwest Atlantic in 1989
recruitment biomass (fish aged up to 1 year) in this species for the area of 87750 square miles studied. The ... abundance of larvae in this area was 4.3 x 10 ind., while the biomass of one year old fish obtained was ... 10750 tons. A whole chain of similar reproductive grounds is assumed to exist in the notal zone of the ... Atlantic and other sectors of the South Ocean to be able to sustain a large biomass of E. carlsbergi in ...
Meeting Document : WG-FSA-95/07 : Author(s): Nevisnky, M.M.
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Results of scientific observation in Antarctic krill fishery in 2010/11: II. analysis of variability of krill size and fish by-catch
observation error. The parameters of the model were estimated by the Markov chain Monte Carlo (MCMC) method in ... as variables of interest based on the scientific observer data for the 2010/2011 fishing season. Both ... krill length model, some parameters did not converge well in the bycatch fish model. The interaction ... is no clear difference among cruises within a vessel. The uncertainty in parameter estimation is ...
Meeting Document : WG-EMM-12/67 : Author(s): T. Okuda and M. Kiyota (Japan)
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Possibility of predicting sea-ice concentration (SIC) in research block (RB) 48.6-5 (Southern part of Subarea 48.6) using sea surface temperature (SST) in RB 48.6-2 (Northern part of 48.6)
48.6-5 corresponded well with the dynamics of monthly sea surface temperature (SST) anomaly in RB ... 48.6-5. However, in the prediction of SIC in RB 48.6-5 using the monthly SST anomaly ... be used to predict the SIC in 48.6- 5. There is not a strong correlation of SST between ... Abstract: It was reported at WG-SAM-2019 that the sea ice concentration (SIC) of RB ...
Meeting Document : WG-FSA-2019/49 : Author(s): T. Namba, R. Sarralde, S. Somhlaba and J. Pompert
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A generalised model for evaluating yield and the long-term status of fish stocks under conditions of uncertainty
d u rendement annuel B long terme qui satisfait aux objectifs de conservation de la biomasse reproductrice des ... , HepeCTa ci IIpOMblCJia H a PaCqeTbI BbInoBa H BbInOBa Ha PeKpyTa. OH^ TaKXe MOXeT IIPHMeHRTbCR An53 ... OqeHKI? BbInOBa COBpeMeHHblX IIPOMblCnOB. A a e ~ c z npWMep no IIaTarOHCKOMy KJIbIKaqy, Dissostichus ... s h o u l d b e main ta ined . Initially, CCAMLR decided that the catch rate from any stock was no t t o exceed ... Paper Title: A generalised model for evaluating yield and the long-term status of fish stocks ... projection model for assessing the long-term annual yield which satisfies objectives for the maintenance of ... the spawning stock biomass in accordance with CCAMLR criteria. These specify a bound on the ... period and set a further constraint on the long-term status of the stock relative to the pre-exploitation ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 31–54 : Author(s): Constable, A. and W.K. de la Mare
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A compilation of parameters for ecosystem dynamics models of the Scotia Sea – Antarctic Peninsula region
) and col- leagues (at BAS, UK and NOAA Fisheries, USA), models krill numbers but assumes a constant mean ... 100 m of the water column (upper 14 model levels). For each calendar month, a depth-weighted mean ... in the advection scheme, the monthly mean velocity fi elds were modifi ed according to Killworth (1996) to avoid ... errors associated with linear interpolation between mean fi elds. The particles were advected using ... – Antarctic Peninsula region Abstract / Description: Expansion of the krill fishery in the Scotia Sea ... Paper Title: A compilation of parameters for ecosystem dynamics models of the Scotia Sea ... assessment of methods for subdividing the precautionary catch limit amongst smaller spatial units. This paper ... compiles parameters for use in the ecosystem dynamic models that are needed to assess these methods. These ...
Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 1–25 : Author(s): Hill, S.L., K. Reid, S.E. Thorpe, J. Hinke and G.M. Watters
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Progress report on the plans for the Russian contribution for the CCAMLR Synoptic Survey
eastern and western sides of the South Sandwich Islands. The detailed survey plan has been produced in ... Abstract: According to the recommendations of the recent meeting of the CCAMLR Working Group on ... "Atlantida" provides a broad area coverage in Subarea 48.4 and meso-scale coverage along the ... compliance with the Synoptic Survey Protocol. A short description of actions undertaken to the data is ...
Meeting Document : SC-CAMLR-XVIII/BG/22 : Author(s): Delegations of Russia and the United Kingdom