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On reproduction of Electrona carlsbergi (Tåning)
Paper Title: On reproduction of Electrona carlsbergi (Tåning) Abstract / Description: This paper ... presents results from histological examinations of gonads of Electrona carlsbergi from the Atlantic sector ... of the Southern Ocean. From materials available it has been ascertained that E. carlsbergi spawns in ... the notal waters. Maturation of females begins when body length reaches 76 to 78 mm. Vitellogenesis is ... WG-FSA-90/20 ON REPRODUCTION OF ELECTRONA CARLSBERGI ... (TANING) G.P. Mazhirina* Abstract This paper presents results from histological examinations of ... gonads of Electrona carlsbergi from the Atlantic sector of the Southern Ocean. From materials available ... it has been ascertained that E. carlsbergi spawns in the notal waters. Maturation of females begins ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 397–409 : Autor(es): Mazhirina, G.P.
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Integration of CPUE data into assessments using the Generalised Yield Model
Paper Title: Integration of CPUE data into assessments using the Generalised Yield Model Abstract ... accorded high priority to the development of methods of integrating different indicators of stock status ... the use of importance sampling, for incorporating information on trends in standardised CPUEs into GYM ... assessments. The use of the method is illustrated using data for Patagonian toothfish (Dissostichus ... CCAMLR Science, Vo l . 8 (2001): 65-74 INTEGRATION OF ... Group on Fish Stock Assessment (WG-FSA) has had available to it two indicators of stock status for ... direct assessments of the abundance of fish in the population (SC-CAMLR, 1995). The first of these ... indicators is a time series of estimates of biomass arising from use of the Generalised Yield Model (GYM ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 65–74 : Autor(es): Kirkwood, G.P. and A.J. Constable
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Variations in echosounder calibration with temperature, and some possible implications for acoustic surveys of krill biomass
implications for acoustic surveys of krill biomass Abstract / Description: Accurate estimation of krill ... biomass by acoustic techniques is dependent on a number of factors of which one of the most fundamental is ... S v transducer gains at South Georgia (sea temperature at depth of transducer = 2.3 o C) were on ... were taken of the differences in gain settings, then integrated 120 kHz echo signals would be under ... OF KRILL BIOMASS A.S. Brierley, C. Goss, J.L. Watkins and P. Woodroffe British Antarctic Survey ... Abstract Accurate estimation of krill biomass by acoustic techniques is dependent on a number of factors ... of which one of the most fundamental is accurate echosounder calibration. The Simrad EK500 ... (sea temperature at depth of transducer = 2.3'C) were on average 1.4 dB less than in European waters ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 273–281 : Autor(es): Brierley, A.S., C. Goss, J.L. Watkins and P. Woodroffe
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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 ... 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 ... 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 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 191–205 : Autor(es): Butterworth, D.S., D.L. Borchers and D.G.M. Miller
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Investigations of required sampling regimes for environmental parameters
Paper Title: Investigations of required sampling regimes for environmental parameters Abstract ... / Description: The sensitivity of different sampling regimes in identifying inter-annual changes in ... monthly mean temperature over two years with a significance α of 0.05 and a power P of 0.8. Sampling wind ... monthly mean log-transformed wind speed α of 0.05 and P of 0.9. File: 35-Agnew.pdf ... WG-CEMP-90/19 INVESTIGATIONS OF REQUIRED SAMPLING ... REGIMES FOR ENVIRONMENTAL PARAMETERS D.J. Agnew* Abstract The sensitivity of different sampling ... significance a of 0.05 and a power P of 0.8. Sampling wind speed continuously or as daily maxima and minima ... would be sufficient to detect a 10 to 20% change in monthly mean log-transformed wind speed a of 0.05 ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 561–573 : Autor(es): Agnew, D.J.
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Chilean krill fishery: analysis of the 1991 season
Paper Title: Chilean krill fishery: analysis of the 1991 season Abstract / Description: This ... paper summarises Chilean catch data for 1991. Special emphasis is given to the analysis of haul-by-haul ... data and its use in studying small-scale spatial distribution of catches. The results show that krill ... fishing in Subarea 48.1 is particularly intense near CEMP sites. Other ways of using of haul-by-haul data ... WG-KRILL-9l/39 CHILEAN KRILL FISHERY: ANALYSIS OF THE ... This paper summarises Chilean catch data for 1991. Special emphasis is given to the analysis of haul ... -by-haul data and its use in studying small-scale spatial distribution of catches. The results show ... that laill fishing in Subarea 48.1 is particularly intense near CEMP sites. Other ways of using of ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 273–287 : Autor(es): Marín, V.H., A. Mujica and P. Eberhard
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Research currently being undertaken by the Republic of South Africa on "dependent and related species" within the Antarctic marine ecosystem
Paper Title: Research currently being undertaken by the Republic of South Africa on " ... components of the biological sciences programme are described. The primary objective of the studies being ... undertaken is to improve our understanding of the ecology of important predators (especially seals and ... --CAMLR-IV/BG/2 1985 RESEARCH CURRENTLY BEING UNDERTAKEN BY THE REPUBLIC OF SOUTH AFRICA ON "DEPENDENT ... AND RELATED SPECIES" WITHIN THE ANTARCTIC MARINE ECOSYSTEM Abstract Selected components of the ... biological sciences programme are described. The primary objective of the sudies being undertaken is to ... improve our understanding of the ecology of important predators (especially seals and seabirds) and ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/2 (Selected Scientific Papers, SC-CAMLR-SSP/2) : 59-77 : Autor(es): South Africa
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Biology and harvesting of Dissostichus eleginoides around the Kerguelen Islands (Division 58.5.1)
Paper Title: Biology and harvesting of Dissostichus eleginoides around the Kerguelen Islands ... species in the fisheries of the Southern Ocean. In Division 58.5.1, a directed trawl fishery has been in ... operation since 1984/85 and has expanded in the deep western sector of the Kerguelen Shelf. This fishery ... harvests the sub-adult/adult part of the stock. Fishing effort and corresponding catches are very variable ... is becoming an increasingly important species in the fisheries of the Southern Ocean. In Division ... western sector of the Kerguelen Shelf. This fishery harvests the sub-adult/adult part of the stock ... harvestable resources of ChampsocephaZus gunnari. Vital biological information on population dynamics, as ... exploitation are discussed with respect to the development of fishing methods. Resume Dissostichus ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 85–106 : Autor(es): Duhamel, G.
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Status of the krill stock around Elephant Island in 1991/92 and 1992/93
Paper Title: Status of the krill stock around Elephant Island in 1991/92 and 1992/93 Abstract ... / Description: Krill stock composition and distribution patterns in the vicinity of Elephant Island during the ... austral summers of 1991/92 and 1992/93 are described and compared with information from previous years ... . The general distribution of krill length and maturity classes conformed to previous descriptions and ... CCAMLR Science, Vol. 1: 7-33 STATUS OF THE KRILL STOCK ... patterns in the vicinity of Elephant Island during the austral summers of 1991/92 and 1992/93 are ... described and compared with information from previous years. The general distribution of krill length and ... of the krill stocks in the Antarctic Peninsula region. The length frequency distributions and ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 7–33 : Autor(es): Loeb, V. and V. Siegel
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An iterative model to construct an age/length key to assess the age composition of a new fishery for Dissostichus eleginoides in Chilean waters
Paper Title: An iterative model to construct an age/length key to assess the age composition of a ... estimation of age composition of catch requires that age/length data and random length frequency have been ... sampled from the same population. If such sampling is not possible the estimates of the age distribution ... composition of catch for Dissostichus eleginoides was obtained with the application of a single age/length key ... estimation of age composition of catch requires that age/length data and random length frequency have been ... sampled from the same population. If such sampling is not possible the estimates of the age distribution ... composition of catch for Dissostichus eZeginoides was obtained with the application of a single age/length ... Diego Portales. BIBLIOGRAFIA AKAMINE, T. and Y. MATSUMIYA. 1992. Mathematical analysis of age-length ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 11–20 : Autor(es): Robotham, V. H. and Z. Young U.