Résultats de la recherche
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Status of the FIBEX acoustic data from the West Atlantic
Paper Title: Status of the FIBEX acoustic data from the West Atlantic Abstract / Description ... consistency of krill abundance estimates derived from different survey vessels. There is a good level of ... consistency between the results from four of the vessels, Itzumi, Dr Eduardo L. Holmberg, Odissey and Walther ... Herwig. While there is an error factor due to the combination of data collected at 50 kHz (Walther Herwig ... and Area 58: Recalculation of FIBEX Data. In: Selected Scientific Papers, 1992 (SC-CAMLR-SSPI9 ... CCAMLR Science, Vol. 1: 35-48 STATUS OF THE FIBEX ... West Atlantic sector have been re-examined to check the consistency of krill abundance estimates ... derived from different survey vessels. There is a good level of consistency between the results from four ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 35–48 : Auteur(s): Trathan, P.N. and I. Everson
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Trends in relative abundance of fjord Notothenia rossii, Gobionotothen gibberifrons and Notothenia coriiceps at Potter Cove, South Shetland Islands, after commercial fishing in the area
Paper Title: Trends in relative abundance of fjord Notothenia rossii, Gobionotothen gibberifrons ... Abstract / Description: Monitoring of demersal fish at inshore sites of the South Shetland Islands has ... continued at Potter Cove from 1991 to 1999, and at Harmony Cove, Nelson Island, in the austral summer of ... 1995/96. Still evident is the decline in trammel-net catches of fjord-dwelling Notothenia rossii and ... ABUNDANCE OF FJORD NOTOTHENIA ROSSII, GOBIONOTOTHEN GIBBERIFRONS AND NOTOTHENIA CORIICEPS AT POTTER COVE ... Gallardo 470, C1405DJR Buenos Aires, Argentina Abstract Monitoring of demersal fish at inshore sites of ... , Nelson Island, in the austral summer of 1995/96. Still evident is the decline in trammel-net catches of ... fished Notothenia coriiceps, which was previously reported for the period 1983-1990. A trend of ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 43–52 : Auteur(s): Barrera-Oro, E.R., E.R. Marschoff and R.J. Casaux
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Modelling and decision making as part of the CCAMLR management regime
Paper Title: Modelling and decision making as part of the CCAMLR management regime Abstract ... environment essential for the effective management of the Antarctic marine ecosystem within the requirements ... of CCAMLR Article II. Eight attributes (purpose, description, variables, driving forces, time ... development of suitable simulations of important Antarctic marine ecosystem interactions and to facilitate the ... AS PART OF THE CCAMLR MANAGEMENT REGIME D.G.M. Miller (South Africa) Abstract This paper ... : The. application of a research tool to Antarctic marine living resources. In: Selected papers to ... effective management of the Antarctic marine ecosystem within the requirements of CCAMLR Article 11. Eight ... data) were identified in an attempt to provide a blueprint for the development of suitable ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 295-322 : Auteur(s): Miller, D.G.M.
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Remarks on the natural mortality of Dissostichus eleginoides in Subarea 48.3
Paper Title: Remarks on the natural mortality of Dissostichus eleginoides in Subarea 48.3 ... Abstract / Description: Natural mortality (M) of Dissostichus eleginoides was calculated after Sparre ... differences in M between fishing sites. On the other hand, when comparing various mean values of M for the ... curve hooks No. 14 and straight hooks No. 22. The general mean value of M calculated for the 44 analysed ... ) of Dissostichus eleginoides was calculated after Sparre (1989) from the data obtained during the ... sites. On the other hand, when comparing various mean values of M for the different cases, it was ... straight hooks No. 22. The general mean value of M calculated for the 44 analysed situations was 0.14 ... , Australia. BEVERTON, R.J.H. and S.J. HOLT, 1956. A review of methods for estimating mortality rates in ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 21–30 : Auteur(s): Moreno, C.A. and P.S. Rubilar
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A quantified Bayesian Maximum Entropy estimate of Antarctic krill abundance across the Scotia Sea and in small-scale management units from the CCAMLR-2000 Survey
Paper Title: A quantified Bayesian Maximum Entropy estimate of Antarctic krill abundance across ... : A probabilistic Bayesian Maximum Entropy (MaxEnt) technique was used to estimate the abundance of ... Survey of Area 48 (CCAMLR-2000 Survey) and to map the density distribution of krill across the survey ... area. Density values for the unsurveyed off-transect portions of the survey area were inferred, and ... biomass estimate of 109.4 million tonnes. This paper presents a biomass estimate, based on the Demer and ... ) can – after some mathematical work (see Skilling, 1992) which is beyond the scope of this paper – be ... , not only those estimated in this paper but also more fundamental elements such as the shape of the ... than was available to the authors of these previous papers. The standard deviation for each pixel ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 97–116 : Auteur(s): Heywood, B.G., A.S. Brierley and S.F. Gull
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Fishing intensity of the Soviet fleet in krill fisheries in the southern Atlantic (Subareas 48.2 and 48.3)
Paper Title: Fishing intensity of the Soviet fleet in krill fisheries in the southern Atlantic ... (Subareas 48.2 and 48.3) Abstract / Description: This paper provides an assessment of the impact of the ... % of the total catch. The calculations were based on haul-by-haul data from the Soviet fleet, using a ... probability statistical theory of fishery systems developed at AtlantNIRO. The impact of the commercial fleet ... 236000, Russia Email – ks@atlant.baltnet.ru Abstract This paper provides an assessment of the impact of ... (2003): 15–35 15 FISHING INTENSITY OF THE SOVIET FLEET IN KRILL FISHERIES IN THE SOUTHERN ATLANTIC ... to more than 95% of the total catch. The calculations were based on haul-by-haul data from the ... Soviet fl eet, using a probability statistical theory of fi shery systems developed at AtlantNIRO. The ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 15–35 : Auteur(s): Kasatkina, S.M. and V.F. Ivanova
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A composite recruitment index to describe interannual changes in the population structure of Antarctic krill at South Georgia
structure of Antarctic krill at South Georgia Abstract / Description: A composite recruitment index based ... and length data are derived from standard station net hauls only. Comparison of these indices showed ... substantial differences, due in part to bias arising from a large number of krill in just one of the station ... net hauls. Therefore, when the number of station net hauls is limited, bias is likely to be reduced if ... Peninsula region have been presented in a series of papers by Siegel and coworkers (Siegel and Loeb, 1995 ... calculate recruitment indices (de la Mare, 1994). In this paper I consider a series of British Antarctic ... their very nature, do not provide a measure of average krill density. In this paper I therefore first ... papers are used as the basis for the present analysis. The positions of net hauls used in the analysis ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 71–84 : Auteur(s): Watkins, J.L
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A simple approach for calculating the potential yield of krill from biomass survey results
Paper Title: A simple approach for calculating the potential yield of krill from biomass survey ... for the calculations is that the probability that the krill spawning biomass drops below 20% of its ... median pre-exploitation level over a 20 year period of harvesting should equal 10%. The value of, λ ... depends strongly on the value of M (natural mortality) and σ R (recruitment variability), and also on the ... potential yield of fish stocks. FAO Fish. Bioi. Tech. Pap. 242: 1-47. BUTTERWORTH, D.S. 1989. A ... range of plausible values for pertinent parameters. This paper reports the results of calculations ... . The calculations of this paper have assumed krill fishing over the summer season. In certain ... simulation study of krill fishing by an individual Japanese trawler. In: Selected Scientific Papers, 1988 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 207–217 : Auteur(s): Butterworth, D.S., A.E. Punt and M. Basson
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Distribution and population structure of Dissostichus eleginoides and D. mawsoni on BANZARE Bank (CCAMLR Division 58.4.3b), Indian Ocean.
Paper Title: Distribution and population structure of Dissostichus eleginoides and D. mawsoni on ... composition, sex ratio and sexual maturity of Dissostichus eleginoides and D. mawsoni from BANZARE Bank were ... shallower banks (<1 000 m), while D. mawsoni was caught on deeper slopes (>1 500 m). Separation of the ... two species by depth may be related to physical intolerance to cooler temperatures because of the lack ... Governance and Management of Deepsea Fisheries. Part 2: Conference poster papers and workshop papers. FAO ... seamounts, between 50 and 60°S, and on the Patagonian Shelf and the southern coast of Chile to 30°S ... POPULATION STRUCTURE OF DISSOSTICHUS ELEGINOIDES AND D. MAWSONI ON BANZARE BANK (CCAMLR DIVISION 58.4.3B ... ), INDIAN OCEAN K. Taki, M. Kiyota National Research Institute of Far Seas Fisheries Fisheries Research ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 145–153 : Auteur(s): Taki, K., M. Kiyota, T. Ichii and T. Iwami
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Some comments on the procedure for testing estimators of krill abundance which utilise survey data
Paper Title: Some comments on the procedure for testing estimators of krill abundance which ... utilise survey data Abstract / Description: Since krill distributional data do show evidence of spatial ... correlation, estimators of abundance which attempt to model such effects (such as those based on Kriging ... computer generation of krill distribution patterns, which are compatible with existing information on the ... of their paper. There are significant differences between day- and night-time distribution patterns ... purposes of the simple analyses of this paper, these complications will be overlooked. If the krill ... TESTING ESTIMATORS OF KRILL ABUNDANCE WHICH UTILISE SURVEY DATA D.S. Butterworth*, D.L. Borchers* and ... D.G.M. Miller** * ** Abstract Since krill distributional data do show evidence of spatial ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 191–205 : Auteur(s): Butterworth, D.S., D.L. Borchers and D.G.M. Miller