Résultats de la recherche
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Results of fish stock assessment survey, South Georgia, December 1987 - January 1988
Paper Title: 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 ... . Notothenia rossii is showing no signs of recovery and Champsocephalus gunnari is likely to continue declining ... SC-CAM LR-VII/BG/23 RESULTS OF FISH STOCK ASSESSMENT ... same area and showed that most of the stocks are continuing to decline. Notothenia rossii is showing ... no signs of recovery and Champsocephalus gunnari is likely to continue declining in abundance ... poblaciones de peces, comerciales alrededor de Georgia del Sur han estado declinando desde principios de los ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 19-52 : Auteur(s): McKenna, Jr., J.E. and S.B. Saila
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Results of the CCAMLR Antarctic fish otoliths/scales/bones exchange system
Paper Title: Results of the CCAMLR Antarctic fish otoliths/scales/bones exchange system Abstract ... / Description: An exchange system was established among Members of CCAMLR to compare age determinations for the ... rossii, Champsocephalus gunnari, Notothenia gibberifrons and Pleuragramma antarcticum. The level of ... agreement in age determination was highest for scales of juvenile N. rossii and for otoliths of juvenile C ... SC-CAM LR-VIIIIBG/46 RESULTS OF THE CCAMLR ANTARCTIC ... established among Members of CCAMLR to compare age determinations for the same species among different ... , Notothenia gibberifrons and PJeuragramma antarcticum. The level of agreement in age determination was ... highest for scales of juvenile N. rossii and for otoliths of juvenile C. gunnari from South Georgia and ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 197–226 : Auteur(s): Kock, K.-H.
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The sensitivity of multiple output statistics to input parameters in a krill–predator–fishery ecosystem dynamics model
Paper Title: The sensitivity of multiple output statistics to input parameters in a krill ... Drake Passage. The model analysed here required 2 311 input values for each of four scenarios and ... the status of predator groups more than they affected statistics indicating the status of the target ... recruitment through pre-recruit mortality. A parameter mediating the effect of a forcing function on krill ... movement causes a net loss of krill from these SSMUs. In oceanic SSMUs in these subareas, movement causes ... provide advice to CCAMLR on the spatial allocation of the Antarctic krill catch limit for the Scotia Sea ... required 2 311 separate inputs for each of four alternative scenarios (Table 1). The word scenario here ... means a mathematical representation of a hypothesis about ecosystem dynamics consisting of a model and ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 97–118 : Auteur(s): Hill, S.L. and J. Matthews
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A first attempt at an assessment of the Patagonian toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands EEZ
Paper Title: A first attempt at an assessment of the Patagonian toothfish (Dissostichus ... eleginoides) resource in the Prince Edward Islands EEZ Abstract / Description: The history of the fishery for ... -per-unit-effort (CPUE) trend. Application of a simple age-structured production model (ASPM) provides ... a robust indication that the spawning biomass has been depleted to, at most, a few percent only of ... , Vol. 9 (2002): 11–32 11 A FIRST ATTEMPT AT AN ASSESSMENT OF THE PATAGONIAN TOOTHFISH (DISSOSTICHUS ... Assessment and Management Group Department of Mathematics and Applied Mathematics University of Cape Town ... North Hobart 7002, Tasmania, Australia Abstract The history of the fi shery for Patagonian toothfi sh ... -effort (CPUE) trend. Application of a simple age-structured production model (ASPM) provides a robust ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 11–32 : Auteur(s): Brandão, A., D.S. Butterworth, B.P. Watkins and D.G.M. Miller
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Geographical differences in the condition, reproductive development, sex ratio and length distribution of Antarctic toothfish (Dissostichus mawsoni) from the Ross Sea, Antarctica (CCAMLR Subarea 88.1)
length distribution of Antarctic toothfish (Dissostichus mawsoni) from the Ross Sea, Antarctica (CCAMLR ... Subarea 88.1) Abstract / Description: A number of morphological and reproductive measurements made ... to 2004/05 fishing seasons on board the autoliner San Aotea II have been analysed. Results of this ... study indicate measurable differences in a number of indices from toothfish found on the Ross shelf ... GEOGRAPHICAL DIFFERENCES IN THE CONDITION, REPRODUCTIVE DEVELOPMENT, SEX RATIO AND LENGTH DISTRIBUTION OF ... @clear.net.nz Abstract A number of morphological and reproductive measurements made seasonally on Antarctic ... seasons on board the autoliner San Aotea II have been analysed. Results of this study indicate measurable ... differences in a number of indices from toothfish found on the Ross shelf proper, as distinct from those ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 27–45 : Auteur(s): Fenaughty, J.M
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Schedule of Conservation Measures in Force 1992/93
SCHEDULE OF CONSERVATION MEASURES IN FORCE 1992/93 SEASON (As amended by the Commission at the ... by the Commission in accordance with Article IX of the Convention for the Conservation of Antarctic ... numerals with a roman numeral identifying the number of the meeting of the Commission at which they were ... Commission, and indicates that the Measure was adopted at the Fourth Meeting of the Commission, i.e. in ...
Document : Site Section: Publications
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Schedule of Conservation Measures in Force 1993/94
SCHEDULE OF CONSERVATION MEASURES IN FORCE 1993/94 SEASON (As amended by the Commission at the ... the Commission in accordance with Article IX of the Convention for the Conservation of Antarctic ... numerals with a roman numeral identifying the number of the meeting of the Commission at which they were ... Commission, and indicates that the Measure was adopted at the Fourth Meeting of the Commission, i.e. in 1985 ...
Document : Site Section: Publications
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An index of per capita recruitment
Paper Title: An index of per capita recruitment Abstract / Description: An index of per capita ... recruitment (PCR) is proposed such that where R 1 is the proportion of age-l animals sampled in year y and M ... is the post-recruit mortality rate. The intent of the index is to facilitate investigation of ... reproductive success and the factors postulated to affect it. The formulation of PCR is based on the ... AN INDEX OF PER CAPITA RECRUITMENT R. Hewitt Southwest Fisheries Science Center PO Box 271, La ... Jolla, Ca. 92038, USA Abstract An index of per capita recruitment (PCR) is proposed such that ... where R1 is the proportion of age-l animals sampled in year y and M is the post-recruit mortality rate ... . The intent of the index is to facilitate investigation of reproductive success and the factors ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 179–196 : Auteur(s): Hewitt, R
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Towards the development of a management plan for mackerel icefish (Champsocephalus gunnari) in Subarea 48.3
Paper Title: Towards the development of a management plan for mackerel icefish (Champsocephalus ... gunnari) in Subarea 48.3 Abstract / Description: Management of the mackerel icefish (Champsocephalus ... gunnari) at South Georgia is complicated by the likelihood of substantial periodic variations in natural ... mortality rates. These may be associated with increased consumption of C. gunnari by Antarctic fur seals in ... DEVELOPMENT OF A MANAGEMENT PLAN FOR THE MACKEREL ICEFISH (CHAMPSOCEPHALUS GUNNARI) IN SUBAREA 48.3 D.J ... Tampa, Fl. 33609-3437, USA Abstract Management of the mackerel icefish (Champsocephnlus gunnari) at ... South Georgia is complicated by the likelihood of substantial periodic variations in natural mortality ... rates. These may be associated with increased consumption of C. gunnari by Antarctic fur seals in years ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 63–77 : Auteur(s): Agnew, D.J., I. Everson, G.P. Kirkwood and G.B. Parkes
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Assessments of by-catch in trawl fisheries at Heard and McDonald Islands
Paper Title: Assessments of by-catch in trawl fisheries at Heard and McDonald Islands Abstract ... (Statistical Division 58.5.2) to significantly affect, in the long term, spawning biomass of three taxa caught ... skates). The long-term annual yield for each of the three taxa was estimated using the generalised yield ... biomass estimates from surveys in the region from 1990 to 1993 and a limited amount of biological data ... ASSESSMENTS OF BY-CATCH IN TRAWL FISHERIES AT HEARD AND MCDONALD ISLANDS A.J. Constable, R. Williams and ... (Statistical Division 58.5.2) to significantly affect, in the long term, spawning biomass of three taxa caught ... skates). The long-term annual yield for each of the three taxa was estimated using the generalised yield ... biomass estimates from surveys in the region from 1990 to 1993 and a limited amount of biological data ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 231–243 : Auteur(s): Constable, A.J., R. Williams and W.K. de la Mare