Résultats de la recherche
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Analysis of changes in biomass of fish stocks in the South Georgia area in 1976/77-1986/87
Paper Title: Analysis of changes in biomass of fish stocks in the South Georgia area in 1976/77 ... the stocks of five fish species (Champsocephalus gunnari, Chaenocephalus aceratus, Pseudochaenichthys ... 1976/77-1986/87. In most of the seasons analysed, the estimates covered a near-bottom layer in about 1 ... /6 of the area of the island shelf. Assessment results point to considerable variations in fish ... Polish fishery and ass~ssment of fish stock biomass off South Georgia. Selected papers presented to the ... - 185 - SC-CAMLR-VI/BG/40 (WG-FSA-87/10) ANALYSIS OF ... CHANGES IN BIOMASS OF FISH STOCKS IN THE SOUTH GEORGIA AREA IN 1976/77-1986/87 M. Mucha and W ... stocks of five fish species (Champsocephalus gunnari, Chaenocephalus aceratus, pseudOchaenichthys ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 185-211 : Auteur(s): Mucha, M. and W. Ślósarczyk
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Intra-annual variability in the density of Antarctic krill (Euphausia superba) at South Georgia, 2002–2005: within-year variation provides a new framework for interpreting previous ‘annual’ estimates of krill density
Paper Title: Intra-annual variability in the density of Antarctic krill (Euphausia superba) at ... ‘annual’ estimates of krill density Abstract / Description: Upward-looking acoustic Doppler current ... of South Georgia between 14 October 2002 and 29 December 2005 to measure density of Antarctic krill ... explained 64% of the observed week-to-week variation. Estimates of krill density from moored instruments ... . 14 (2007): 27–41 27 INTRA-ANNUAL VARIABILITY IN THE DENSITY OF ANTARCTIC KRILL (EUPHAUSIA SUPERBA ... PREVIOUS ‘ANNUAL’ ESTIMATES OF KRILL DENSITY R.A. Saunders and A.S. Brierley Gatty Marine Laboratory ... University of St Andrews Fife KY16 8LB, United Kingdom Email – ras19@st-andrews.ac.uk J.L. Watkins, K. Reid ... ) and echo sounders (125 kHz) were deployed on moorings on- and off-shelf to the northwest of South ...
Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 27–41 : Auteur(s): Saunders, R.A., A.S. Brierley, J.L. Watkins, K. Reid, E.J. Murphy, P. Enderlein and D.G. Bone
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Distribution and size of Antarctic krill (Euphausia superba Dana) in Polish commercial catches taken in the Atlantic sector of the Southern Ocean from 1997 to 1999
Paper Title: Distribution and size of Antarctic krill (Euphausia superba Dana) in Polish ... commercial catches taken in the Atlantic sector of the Southern Ocean from 1997 to 1999 Abstract ... / Description: The distribution and internal structure of commercial krill concentrations were investigated in ... the areas of the South Shetland, Elephant, South Georgia and South Orkney Islands in the spring and ... . 9 (2002): 83–105 83 DISTRIBUTION AND SIZE OF ANTARCTIC KRILL (EUPHAUSIA SUPERBA DANA) IN POLISH ... COMMERCIAL CATCHES TAKEN IN THE ATLANTIC SECTOR OF THE SOUTHERN OCEAN FROM 1997 TO 1999 E. Jackowski Sea ... distribution and internal structure of commercial krill concentrations were investigated in the areas of the ... 1999. The density of concentrations varied with area and season. The densest concentrations were ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 83–105 : Auteur(s): Jackowski, E
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A review of the diet and at-sea distribution of penguins breeding within the CAMLR Convention Area (submitted to the 2008 Joint CCAMLR-IWC Workshop)
Paper Title: A review of the diet and at-sea distribution of penguins breeding within the CAMLR ... bioenergetics models that estimate the amount of prey consumed by predators are required to inform such policy ... . These models require information on the number of predators in a population, their nutritional demands ... published information on the diet and at-sea distribution of the six penguin species that breed in the CAMLR ... among papers (percentages of occurrence, numbers and mass) making comparisons across sites problem ... A key objective for CCAMLR is to estimate the biomass of different prey species consumed by ... predators, especially harvested species such as Antarctic krill (Euphausia superba) within each of the ... management subareas of the Southern Ocean. Quotas can then be set at levels that ensure that stocks are not ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 75–114 : Auteur(s): Ratcliffe, N. and P. Trathan
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A balanced model of the food web of the Ross Sea, Antarctica
Paper Title: A balanced model of the food web of the Ross Sea, Antarctica Abstract / Description ... : A quantitative food web of the Ross Sea is presented here as a step towards investigating ecosystem ... effects of the fishery for Antarctic toothfish (Dissostichus mawsoni). The model consolidates quantitative ... information on trophic links across all the major biota of the Ross Sea and tests for data consistency. The ... MODEL OF THE FOOD WEB OF THE ROSS SEA, ANTARCTICA M.H. Pinkerton, J.M. Bradford-Grieve National ... Institute of Water and Atmospheric Research (NIWA) Ltd Private Bag 14901, Wellington 6241 New Zealand ... A quantitative food web of the Ross Sea is presented here as a step towards investigating ecosystem ... effects of the fishery for Antarctic toothfish (Dissostichus mawsoni). The model consolidates ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 1–31 : Auteur(s): Pinkerton, M.H., J.M. Bradford-Grieve and S.M. Hanchet
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f-sc-xxvii-a6.pdf
application/pdf attached to:WG-IMAF-08Meeting Report : WG-IMAF-08
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Problems of population age structure determination of Euphausia superba Dana using an example from the Antarctic Peninsula area and adjacent waters
Paper Title: Problems of population age structure determination of Euphausia superba Dana using ... from earlier literary sources. The paper addresses the question of whether size groups of E. superba ... examines the size structure of populations of E. superba in relation to their habitat, on the basis of an ... analysis of data collected by the author during the 1981 season in the region of the Antarctic Peninsula ... ADJACENT WATERS V.A.Spiridonov (U.S.S.R.) Abstract This paper examines the size structure of ... . The paper addresses the question of whether size groups of E. superba correspond to age groups. It is ... - 227 - SC-CAMLR-V/BG/39 PROBLEMS OF POPULATION AGE ... STRUCTURE DETERMINATION OF EUPHAUSIA SUPERBA DANA USING AN EXAMPLE FROM THE ANTARCTIC PENINSULA AREA AND ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 227-270 : Auteur(s): Spiridonov, V.A.
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Assessment of krill flux factors in waters of South Orkney Islands during summer 1996
Paper Title: Assessment of krill flux factors in waters of South Orkney Islands during summer ... 1996 Abstract / Description: This paper describes the results of an experiment conducted from 19 ... ) was located in the zone of interaction between waters of the Antarctic Circumpolar Current (ACC) and ... in the past. The geostrophic transport of krill across boundaries of the study area was calculated as ... recommended by CCAMLR (SC-CAMLR, 1993). This paper describes the results of that experiment. MATERIAL AND ... ASSESSMENT OF KRZLL FLUX FACTORS IN WATERS OF THE SOUTH ORKNEY ISLANDS DURING SUMMER 1996 S.M. Kasatkina ... , V.N. Shnar, M.I. Polischuk, A.M. Abramov, V.A. Sushin Atlantic Research Institute of Marine Fisheries ... describes the results of an experiment conducted from 19 February to 7 March 1996 to assess krill flux ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 195–204 : Auteur(s): Kasatkina, S.M., V.N. Shnar, M.I. Polischuk, A.M. Abramov and V.A. Sushin
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Areal and seasonal extent of sea-ice cover off the northwestern side of the Antarctic Peninsula: 1979 to 1996
Paper Title: Areal and seasonal extent of sea-ice cover off the northwestern side of the ... Antarctic Peninsula: 1979 to 1996 Abstract / Description: Analysis of seasonal sea-ice cover of an area ... measuring 1.25 x 10 6 km 2 off the northwestern side of the Antarctic Peninsula indicates that there were ... four periods of extensive ice cover during the last 18 years. Variability in seasonal timing, areal ... Ecological Research (LTER) survey grid off the western side of the Antarctic Peninsula. This paper makes ... Stammerjohn and an anonymous reviewer who graciously read an early draft of this paper and offered ... EXTENT OF SEA-ICE COVER OFF THE NORTHWESTERN SIDE OF THE ANTARCTIC PENINSULA: 1979 TO 1996 R.P. Hewitt ... Southwest Fisheries Science Center PO Box 271, La Jolla CA 92038, USA Abstract Analysis of seasonal ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 65–73 : Auteur(s): Hewitt, R
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Bias in the estimation of krill yield from using a deterministic formulation of the median unexploited spawning biomass
Paper Title: Bias in the estimation of krill yield from using a deterministic formulation of the ... parameters and abundance of the stock being assessed. CCAMLR currently uses results from the krill yield ... effects of a specified long-term annual yield on (i) the probability of the spawning stock being reduced ... below a set proportion of the median pre-exploitation spawning biomass during a projection trial and (ii ... , requires no correction. This paper examines the effects of the biased estimates of the median pre ... correction is required. This paper examines the implications for estimates of krill yield of using the ... ESTIMATION OF KRILL YIELD FROM USING A DETERMINISTIC FORMULATION OF THE MEDIAN UNEXPLOITED SPAWNING BIOMASS ... . These models are used in order to account for uncertainty in the biological parameters and abundance of ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 1–8 : Auteur(s): Constable, A.J. and W.K. de la Mare