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Отчет о промысле: поисковый промысел видов Dissostichus на Участке 58.4.1
. 2). Weighted Frequency (proportion of the catch) Le ng th (c m ) 50 100 150 2004/05 2005/06 2006/07 ... LAYOUT OF CCAMLR DOCUMENTS AND REPORTS ...
Document : Site Section: Publications
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Acoustic data analysis and models of krill spatial distribution
/ Description: Acoustic data obtained on 4-5 January 1987 aboard the R/V Professor Siedlecki were used in three ... descriptors of krill spatial aggregation: power spectra for krill biomass fluctuations in space, semivariogram ... (spatial autocorrelation of krill biomass) and the frequency distribution of krill biomass estimate. The ... wavenumber spectrum resembles a white noise at scales of 2-20 km, although at scales smaller than 1 km the ... obtained on 4-5 January 1987 aboard the RN ProfesSor Siedlecki were used in three descriptors of krill ... the techniques of spectral analysis to examine the spatial scale dependence of variability in ... temperature, phytoplankton (chlorophyll-a) and krill biomass in the Antarctic Ocean south of Africa. They ... of krill biomass. In other words, the spectra of temperature and chlorophyll appeared very similar ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 311–329 : Автор(ы): Morin, A., A. Okubo and K. Kawasaki
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Sensitivity analysis for parameters of predatory species CCAMLR Ecosystem Monitoring Program
such a treatment of data obtained at the Magnetic Island Adélie penguin colony in Prydz Bay in the 1987 ... Program Abstract / Description: Following the request of the Scientific Committee of CCAMLR to conduct ... Paper Title: Sensitivity analysis for parameters of predatory species CCAMLR Ecosystem Monitoring ... /88 and 1988/89 breeding seasons. The data on the following parameters were analyzed: adult weight on ... with normality (K-S; p > 0.235 in all cases)(Figures 4a to 4d) and the mean fledging weights of the ... decide what sample size would be necessary if we wished to detect a true fluctuation in the mean of any ... detecting differing degrees of change in the mean, at different levels of statistical significance and ... should reflect the importance of each five-day period in calculation of the annual mean. In this report ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 411–432 : Автор(ы): Whitehead, M.D.
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Fishing for toothfish using pots: results of trials undertaken around South Georgia, March–May 2000
commercial viability of this fishing method for toothfish fisheries in the CCAMLR Convention Area. While the ... toothfish was notably lower than that achieved in the longline fishery. Importantly, the use of pots ... , March–May 2000 Abstract / Description: During the period March to May 2000, the UK undertook trials of ... method successfully caught D. eleginoides, there was a large by-catch of crab species. The catch rate of ... achieved in the longline fishery. Importantly, the use of pots eliminated bird by- catch. To capitalise on ... with other areas in the Convention Area, still catches significant numbers of seabirds. Calculations ... incidental mortality of seabirds should be reduced as much as in toothfish fisheries in the Convention Area ... commercial toothfish pot fishing around South Georgia, the UK proposed to perform trials of this method in ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 93–105 : Автор(ы): Agnew, D.J., T.M. Daw, G.M. Pilling and M.G. Purves
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Spawning locations of mackerel icefish at South Georgia
. There are also indications of a possible second spawning season in January, although the evidence is ... : Historical information on the distribution of spawning and larval mackerel icefish (Champsocephalus gunnari ... inshore spawning at South Georgia during April within and close to the bays on the north side of the ... island. Some spawning almost certainly occurs over much of the island shelf, although is this appears to ... in Figure 1. The mean number of C. ~ I I I Z I I ~ Y ~ per net was very low during February and ... Rocks. There are also indications of a possible second spawning season in January, although the ... ) reported a catch of 4 000 C, giinnari in a single haul. With the exception of eight small specimens (67 ... spawning stock migrates into the fjords in March. In a study of several species on the South Georgia ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 107–118 : Автор(ы): Everson, I., A.W. North, A. Paul, R. Cooper, N.C. McWilliam and K.-H. Kock
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Length-based assessments revisited – why stock status and fishing mortality of long-lived species such as toothfish cannot be inferred from length-frequency data alone
development. The failure of the tag-recapture program to provide robust assessments in many areas and doubts ... / Description: In many of CCAMLR’s new and exploratory fisheries, stock assessment techniques are still in ... and fishing mortality from length-frequency data alone. In this paper, a number of length-based stock ... Paper Title: Length-based assessments revisited – why stock status and fishing mortality of long ... : mean mean c L LZ K L L ¥ -= - (2) where only the mean length Lmean in a sample of fish above ... assessment techniques are still in development. The failure of the tag-recapture program to provide robust ... required for a standardisa- tion of catch rates and estimation of relative abun- dance. In addition, the ... effects of spatial variability in stock distribution and the non-random behaviour of fishing vessels are ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 57–73 : Автор(ы): Ziegler, P.E., D.C. Welsford and A.J. Constable
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Поисковый промысел видов Dissostichus на Участке 58.4.2
LAYOUT OF CCAMLR DOCUMENTS AND REPORTS О ТЧ ... за эти годы теперь помещены в карантине; нижеследующие уловы не включены в таблицу: 2009 г. – судно In Sung ... No. 22, 47 т D. mawsoni 2010 г. – судно In Sung No. 2, 93 т D. mawsoni 2011 г. – судно In Sung No ... Description / Abstract: Fishery Report 2016: Exploratory fishery for Dissostichus spp. in ...
Document : Site Section: Publications
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Results of fish stock assessment survey, South Georgia, December 1987 - January 1988
complements earlier surveys in the same area and showed that most of the stocks are continuing to decline ... Paper Title: Results of fish stock assessment survey, South Georgia, December 1987- January 1988 ... Abstract / Description: Commercial fish stocks around South Georgia have been declining since the early ... . Notothenia rossii is showing no signs of recovery and Champsocephalus gunnari is likely to continue declining ... tonnes in a season (Kock 1986). The decline in abundance of this species since that time has been ... ). The Commission for the Conservation of Antarctic Marine Living Resources has adopted a set of ... measures aimed at rebuilding the stocks of N. rossii and maintaining the other fish resources in the ... comparison of estimates of stock biomass and size structure from the research vessel cruise surveys in 1984 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 19-52 : Автор(ы): McKenna, Jr., J.E. and S.B. Saila
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Age, growth and mortality of Patagonian toothfish (Dissostichus eleginoides) caught off Kerguelen
showed discrepancies due to gear-specific catchability, or differences in the available population with ... Paper Title: Age, growth and mortality of Patagonian toothfish (Dissostichus eleginoides) caught ... off Kerguelen Abstract / Description: Ages of Patagonian toothfish (Dissostichus eleginoides) caught ... off Kerguelen in 1999 were estimated by reading transverse-sectioned otoliths. Randomly interspersed ... the Conservation of Antarctic Marine Living Resources is concerned with conserving the Antarctic ... ecosystem while allowing harvesting. In other parts of the world, however, over-harvesting of larger ... Générale et Appliquée of the Museum National d’Histoire Naturelle, in which the age of D. eleginoides ... Kerguelen Methods Observers sampled otoliths of 826 fi sh from the catch taken in March 1999 off ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 29–41 : Автор(ы): Ashford, J., G. Duhamel, C. Jones and S. Bobko
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INVESTIGATING LENGTH AT MATURITY OF ANTARCTIC TOOTHFISH (DISSOSTICHUS MAWSONI) BASED ON SCIENTIFIC OBSERVERS’ DATA
Abstract: Through generalised linear models, the gonadosomatic index of Antarctic toothfish in ... difference in the GSI values of fish at different maturity stages. However these studies were carried out on ... 137cm. The equivalent GSI at 50% maturity was in the range of 1.1 to 1.4%. These results were used to ... histology and GSI data, most fish found in the northern areas, about a third of those found in the slope ...
Meeting Document : WG-FSA-08/48 : Автор(ы): S. Mormede, S. Parker and P. Grimes (New Zealand)
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