Search results
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A simple approach for calculating the potential yield of krill from biomass survey results
relative values of the ages at maturity and first-capture. Seasonal effects seem to be of lesser importance ... 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 ... of the ages at maturity and first-capture. Seasonal effects seem to be of lesser importance ... and the extent of recruitment variability, as well as on the age-at-first capture, and Beddington and ... = 0.45 yr"l. The values of length-at -age at the start of the season corresponding to these estimates ... the entries in this Table are shown as "(1.00)". For the "base case" choice of identical ages at ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 207–217 : Author(s): Butterworth, D.S., A.E. Punt and M. Basson
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Comparative analysis of the results of determination of reproductive ability of Antarctic toothfish in the Subarea 88.3
ovaries at the stage of vitelligenous growth of oocytes (diameter 1.41-1.61 mm), and males with maturing ... Abstract: Results of histological analysis of gonads of female and male Antarctic toothfish ... indices of females and males, age, indices of gonads, fecundity, and condition by Fulton are described. In ... subareas of the Pacific Antarctic studied previously, it was detected a low share of females with the ...
Meeting Document : WG-FSA-12/32 : Author(s): S.V. Piyanova, A.F. Petrov and A.V. Presnyakov (Russia)
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CPUEs, body length and greenness of Antarctic krill during 1987/88 season in the fishing ground north of Livingston Island
Paper Title: CPUEs, body length and greenness of Antarctic krill during 1987/88 season in the ... fishing ground north of Livingston Island Abstract / Description: In order to identify whether or not ... there was a marked change in two kinds of CPUEs, body length and greenness of krill during the fishing ... season, these parameters were examined for each 10-day period of the Japanese krill fishery in the ... essential searching activities (primary searching time of Butterworth, 1988), at least during the co ... WS-KCPUE-89/8 CPUES, BODY LENGTH AND GREENNESS OF ... ANTARCTIC KRILL DURING 1987/88 SEASON IN THE FISHING GROUND NORTH OF LlVINGSTON ISLAND Y. Endo and T ... . Ichii Abstract In order to identify whether or not there was a marked change in two kinds of CPUEs ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 323–338 : Author(s): Endo, Y. and T. Ichii
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Translation review of the Basic Documents and the conservation measures
publication of the Schedule of Conservation Measures in Force, following their adoption by the Commission at ... Abstract: In 2018, the Secretariat undertook a comprehensive translation review of all ... of major issues identified in the conservation measures and the Basic Documents are appended, and the ... the next version of the Basic Documents and will be incorporated into translations of the next ...
Meeting Document : CCAMLR-XXXVII/BG/12 : Author(s): CCAMLR Secretariat
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2007 krill biomass update of the South Shetland and Elephant Island regions of Area 48
Abstract: Antarctic krill biomass trends in the South Shetland Island region of Area 48 are ... 2007), acoustic biomass estimates previously presented at the 2006 WG-EMM meeting in Namibia (WG-EMM-06 ... from Author(s): C.S. Reiss and A.M. Cossio (USA) Title: 2007 krill biomass update of the South ... Shetland and Elephant Island regions of Area 48 Approval: Approved ...
Meeting Document : WG-EMM-07/31 : Author(s): C.S. Reiss and A.M. Cossio (USA)
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The use of analysis of penguin stomach contents in simultaneous study of prey and predator parameters
samples from the same penguin or studying portions of stomach samples at different stages of digestion are ... Paper Title: The use of analysis of penguin stomach contents in simultaneous study of prey and ... predator parameters Abstract / Description: Size selectivity of krill by penguins is shown to be highly ... sensitive to the statistical assumptions made during the analysis of data. The nested ANOVA method is ... penguin or studying portions of stomach samples at different stages of digestion are proposed as ... 2). At this stage it seems reasonable to assume that the question of size selectivity of krill by ... within dates" component is, at least partially, a consequence of patch distribution of krill. A fraction ... to interpret because the distribution of penguins at sea is basically non-random. The proposed ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 367–375 : Author(s): Marschoff, E. and B. González
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Spatial distribution of Champsocephalus gunnari in Subarea 48.3. Some implications for parameter estimation
Abstract: Results of the analysis of three consecutive cruises to subarea 48.3 are analyzed. A ... significant variance component associated with the formation of clusters of stations was found as well as a ... clusters formed with stations at 8.0 nautical miles implies that considering all stations as independent ... (as in the estimation of the variance of the mean density) might result in a gross underestimation of ...
Meeting Document : WG-FSA-96/30 : Author(s): Calcagno, J., Gonzalez, B., Marschoff, E.
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Antarctic Ocean Legacy: Securing Enduring Protection for the Ross Sea Region – Updated AOA Report
Author(s): Submitted by ASOC (Printed copies of the brochure will be available at the meeting ...
Meeting Document : CCAMLR-SM-II/BG/04 : Author(s): Submitted by ASOC (Printed copies of the brochure will be available at the meeting)
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AOA Briefing 2: Applying the Precautionary Principle to Marine Reserves and Marine Protected Areas
Author(s): Submitted by ASOC (Printed copies of the brochure will be available at the meeting ...
Meeting Document : CCAMLR-SM-II/BG/06 : Author(s): Submitted by ASOC (Printed copies of the brochure will be available at the meeting)
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Demographic characteristics of the Adélie penguin population of Béchervaise Island after 12 years of study
years of CEMP monitoring. A life table was constructed, and predicted rates of population growth and ... breeding success calculated. As for most long-lived seabird species, growth/decline rates of the Adélie ... penguin population at Béchervaise Island were found to be more sensitive to changes in annual survival ... rates, especially of young breeding adults, than to changes in fecundity parameters. These findings are ...
Meeting Document : WG-EMM-02/48 : Author(s): J. Clarke, K. Kerry, A. Townsend and L. Emmerson (Australia)