Résultats de la recherche
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Significant intra-annual variability in krill distribution and abundance at South Georgia revealed by multiple acoustic surveys during 2000/01
Georgia revealed by multiple acoustic surveys during 2000/01 Abstract / Description: Three separate ... designed to complement and extend an existing time series regularly maintained by the British Antarctic ... rose significantly (P = 0.020) by midseason (to 34.7 g m-2). In a pattern that is consistent with ... large). Krill density to the southwest of South Georgia was 32.1 g m-2 in mid-season. By March, krill ... GEORGIA REVEALED BY MULTIPLE ACOUSTIC SURVEYS DURING 2000/01 A.S. Brierley *, C. Goss, S.A. Grant, J.L ... regularly maintained by the British Antarctic Survey since 1996 (and on a more ad hoc basis since the early ... box in the early-season survey was very low (3.5 g m-2) but rose signifi cantly (P = 0.020) by mid ... southwest of South Georgia was 32.1 g m-2 in mid-season. By March, krill density in the western survey ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 71–82 : Auteur(s): Brierley, A.S., C. Goss, S.A. Grant, J.L. Watkins, K. Reid, M. Belchier, I. Everson, M.J. Jessop, V. Afanasyev and J. Robst
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Detection and quantitative estimation of krill concentrations by hydroacoustic instruments
Paper Title: Detection and quantitative estimation of krill concentrations by hydroacoustic ... of towed acoustic antennae. The practical possibility of detecting dispersed krill by hydroacoustic ... ESTIMATION OF KRILL CONCENTRATIONS BY HYDROACOUSTIC INSTRUMENTS K.I. Yudanov (U.S.S.R.) Abstract The ... practical possibility of detecting dispersed krill by hydroacoustic instruments was established on board ... OF KRILL CONCENTRATIONS BY HYDROACOUSTIC INSTRUMENTS Experience in using fish-finding ... abundance is affected to a large extent by peculiarities in the distribution patterns of krill ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 123-139 : Auteur(s): Yudanov, K.I.
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A review of the effectiveness of streamer lines as a seabird by-catch mitigation technique in longline fisheries and CCAMLR streamer line requirements
Paper Title: A review of the effectiveness of streamer lines as a seabird by-catch mitigation ... large degree on the precedent set by CCAMLR in 1991, the streamer line has become the primary, and most ... from Fishing (WG-IMAF), the CCAMLR streamer line requirements were changed by the Commission in 2003 ... found effective in Alaska and met these criteria. Cord (required by Conservation Measure 25-02 (2002 ... (2004): 189–201 189 A REVIEW OF THE EFFECTIVENESS OF STREAMER LINES AS A SEABIRD BY-CATCH MITIGATION ... the precedent set by CCAMLR in 1991, the streamer line has become the primary, and most commonly ... Fishing (WG-IMAF), the CCAMLR streamer line requirements were changed by the Commission in 2003. SHORT ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 189–201 : Auteur(s): Melvin, E.F., B. Sullivan, G. Robertson and B. Wienecke
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Evaluation of the results of trawl selectivity experiments by Poland, Spain and USSR in 1978/79, 1981/82 and 1986/87
Paper Title: Evaluation of the results of trawl selectivity experiments by Poland, Spain and USSR ... Antarctic fish was evaluated taking into account additional data obtained by Poland, Spain and USSR during ... TRAWL SELECTIVITY EXPERIMENTS BY POLAND, SPAIN AND USSR IN 1978/79, 1981/82 AND 1986/87 W. Slosarczyk ... Antarctic fish was evaluated taking into account additional data obtained by Poland, Spain and USSR during ... . They were, however, not analyzed by authors of the background documents submitted to the Scientific ... of the Appendix). In this case the selection was probably influenced by a large by-catch of benthos ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 163–196 : Auteur(s): Slosarczyk, W., E. Balguerias, K. Shust and S. Iglesias
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Food consumption by predators in a CCAMLR integrated study region
Paper Title: Food consumption by predators in a CCAMLR integrated study region Abstract ... provided, illustrating the changes produced by using these new sub-models. Results of initial sensitivity ... SC-CAMLR-IX/BG/16 FOOD CONSUMPTION BY PREDATORS IN A ... provided, illustrating the changes produced by using these new sub-models. Results of initial sensitivity ... reproduccion dentro de las areas designadas. 1. INTRODUCTION At SC-CAMLR-VIII requests by the Working ... Integrated Study Regions, at least during their breeding seasons, were endorsed by the Scientific Committee ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 489–519 : Auteur(s): Croxall, J.P., C. Ricketts and A.G. Wood
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Common fish by-catch species in CCAMLR krill fisheries
Description / Abstract: This simple guide is designed to assist in the identification of fish by ... that have occurred as by-catch in the krill fishery, as well as three family-specific keys. It is ... Email observer.scheme@ccamlr.org Telephone +61 3 6210 1110 Fax +61 3 6224 8744 Common fish by ... Introduction This simple guide is designed to assist in the identification of fish by-catch in the krill ... occurred as by-catch in the krill fishery, as well as three family-specific keys. It is intended to ...
Document : Site Section: Science
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Preliminary appraisal of Antarctic fish selection by the 32/36 bottom trawl combined with various codends
Paper Title: Preliminary appraisal of Antarctic fish selection by the 32/36 bottom trawl combined ... Antarctic icefish, bumphead notothenia, and Scotia Sea icefish. This was primarily caused by the heavy net ... . It was found that the selectivity properties of twine codends are unsatisfactory in the case of ... of both tape codends were much better. It was found that an optimum mesh size of this codend for ... ANTARCTIC FISH SELECTION BY THE 32/36 BOTTOM TRAWL COMBINED WITH VARIOUS CODENDS J. Zaucha (Poland ... notothenia, and Scotia Sea icefish. This was primarily caused by the heavy net material used for their ... APPRAISAL OF ANTARCTIC FISH SE~ECTIVITY BY THE 32/36 BOTTOM TRAWL WITH VARIOUS CODENDS Janusz Zaucha Sea ... . The codend bottom was deprived of its selective properties up to the middle of side walls by placing ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 1-48 : Auteur(s): Zaucha, J.
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Diurnal variations in biological characteristics of krill, Euphausia superba Dana, to the west of the South Orkney Islands, 24 March to 18 June 1990 - based on data reported by a biologist-observer
, to the west of the South Orkney Islands, 24 March to 18 June 1990- based on data reported by a ... ) size selectivity of krill by commercial fisheries. File: 12-Vagin-et-al.pdf ... 1990 - BASED ON DATA REPORTED BY A BIOLOGIST -OBSERVER A.V. Vagin, R.R. Makarov andL.L. Menshenina ... krill by commercial fisheries. Resume Des etudes des variations diurnes de la composition en tailles ... areas of various frontal zones. Until now the only way to resolve these doubts has been by size ... . Diurnal variations in the size composition of krill catches were studied by a biologist-observer in March ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 201–222 : Auteur(s): Vagin, A.V., R.R. Makarov and L.L. Menshenina
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Erratum and Addendum - Modelling catch and effort data using generalised linear models, the Tweedie distribution, random vessel effects and random stratum-by-year effects – CCAMLR Science, 11: 59–80 (2004)
models, the Tweedie distribution, random vessel effects and random stratum-by-year effects – CCAMLR ... dis- tribution errors it was found that the minimum value of the profiled EQD given by equation (7a ... ˆ ˆ iiu r u σ = å (Schall, 1991). The results in Candy (2004) were not affected by this ... (EQD) described by equations (7) and (9) in Candy (2004) should be replaced by the corresponding ... appropriately deal with zero values of y by only excluding con- tributions of loge ijV y to the EQD when 0ijy ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 221–222 : Auteur(s): Candy, S.G
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Assessments of by-catch in trawl fisheries at Heard and MacDonald Islands
caught as by-catch in the commercial trawl fisheries in the Heard Island area (Statistical SubArea 58.5.2 ... operations, the nature of the trawl operations in which they were caught and the effectiveness of current by ... -catch provisions in CCAMLR to ensure the status of these species is not affected by these fisheries. The ... ) respectively. Notably, the by-catch in 1997 did not exceed the lowest estimates of yield for each species. The ...
Meeting Document : WG-FSA-97/30 : Auteur(s): de la Mare, W.K., Williams, R., Constable, A.