Résultats de la recherche

1. Modelling and decision making as part of the CCAMLR management regime

   horizons, time steps, constraints and data) were identified in an attempt to provide a blueprint for the ... environment essential for the effective management of the Antarctic marine ecosystem within the requirements ... formulation of a suitable decision-making protocol for management purposes. File:  16-Miller.pdf ... of CCAMLR Article II. Eight attributes (purpose, description, variables, driving forces, time ... data) were identified in an attempt to provide a blueprint for the development of suitable ... , for example in order to rebuild some other predator (e.g. whales) population to an acceptable ... each model scenario, it enables us to design an appropriate holistic model suite. For example, an ... fishing. 5 years. 1 year unless there is a seasonal influence ·on the population. Data limited ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 295-322 : Auteur(s): Miller, D.G.M.

2. Feeding patterns of nine species of Antarctic fish and assessment of their daily food consumption

   : Nototheniidae (four species), Channichthyidae (three species) and Bathydraconidae (two species). The study ... be about five times their body weight. File:  20-Pakhomov-and-Tseitlin.pdf ... fish species in Antarctic waters. The aim of this study is to collect information on the feeding ... concentrated on analysing the food composition of these species to find out their daily diet. One 36-hour ... time of T90 (evacuation time): (3) Evacuation time is from two to five days for Antarctic fish ... respectively. Daily food consumption for each fish species was calculated for two values of T90: 48 and 72 ... food items for Chionodraco hamatus and Cryodraco antarcticus were first-year matured C. wilsoni (SL=17 ... benthophages is no less than two or three days, while for predatory and euryphages digestion takes no less ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 321–333 : Auteur(s): Pakhomov, Y.A. and V.B. Tseitlin

3. A preliminary assessment of age and growth of Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea, Antarctica

   derived for both sexes combined are: L ∞ 22.1 cm SL; K 0.167 y –1; t 0 –0.4 years. Parameter estimates ... were also derived for the sexes separately. Female Antarctic silverfish appear to reach a larger size ... about two-thirds of the sampled fish could not be sexed. Precision estimates and age bias plots ... -growing with a moderate longevity; the maximum estimated age was 14.3 years. Von Bertalanffy parameters ... age­frequency histogram for 304 Antarctic silverfish sampled from the Ross Sea. 0 10 20 30 40 50 1 2 3 4 ... cognition due to being stored frozen for almost two years. SL has been used for all analyses as caudal ... measured fresh on board and again after one year stored frozen at –20°C did not differ in length. Von ... 25 0 3 6 9 12 15 Age (years) St an da rd le ng th (c m ) 0 5 10 15 20 25 0 3 6 9 12 ...

   Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 75–86 : Auteur(s): Sutton, C.P. and P.L. Horn

4. Distribution of the Soviet krill fishing fleet in the South Orkneys area (Subarea 48.2) during 1989/90

   hydrodynamic characteristics of the area, for example a complex current around the islands together with ... 48.2) during 1989/90 Abstract / Description:  The results of an analysis of haul-by-haul catch ... statistics from the Soviet krill fishing fleet during the 1989/90 season (sample of 3 614 hauls for the ... days of November, the aggregation disintegrated, having existed for about 25 days, and commercial ... 11-15 November 16-20 November 21-25 November 26-30 November Number of Vessels 2 2 2 ... St. Kaliningrad 236000, Russia Abstract The results of an analysis of haul-by-haul catch ... statistics from the Soviet krill fishing fleet during the 1989/90 season (sample of 3 614 hauls for the ... by certain hydrodynamic characteristics of the area, for example a complex current around the ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 51–62 : Auteur(s): Sushin, V.A

5. CCAMLR ecosystem monitoring and management: future work

   system, (ii) methods for assessing the status of the system, (iii) decision rules on how to adjust ... :  Harvesting of marine living resources in the Southern Ocean is managed by the Commission for the Conservation ... of Antarctic Marine Living Resources (CCAMLR). CCAMLR is widely known for its ecosystem approach to ... for dealing with uncertainty. This paper reviews progress in developing ecosystem-based management ... . In conclusion, a work plan for the development of an ecosystem-based management procedure is ... estimates of parameters. For the purposes of developing an ecosystem- based management procedure, plausible ... the local population due to a high degree of site fi delity from one year to the next. For more ... to adequately test for the effects of an environmental perturbation, such as fi shing, are well ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 233–253 : Auteur(s): Constable, A.J

6. Editorial

   of analysis of data gathered on fishing vessels to using trends in patents to predict the future for ... Science coincides with the 30th meeting of the CCAMLR Scientific Committee. Over those 30 years, several ... -based decision-making by CCAMLR. One of the most striking changes over the past 30 years is the increase ... fishing in the Convention Area. For example, in the case of toothfish there are papers that develop our ... analysis of data gathered on fishing vessels to using trends in patents to predict the future for krill ... coincides with the 30th meeting of the CCAMLR Scientific Committee. Over those 30 years, several thousand ... decision-making by CCAMLR. One of the most striking changes over the past 30 years is the increase in the ... Convention Area. For example, in the case of tooth- fish there are papers that develop our understanding of ...

   Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 167 : Auteur(s): Editors

7. Analysis of changes in biomass of fish stocks in the South Georgia area in 1976/77-1986/87

   recruiting an abundant year-class to the exploited stock. The biomass of other bottom species is more stable ... biomass density of C. gunnari stock. High biomass density appeared with 2-4 year intervals after ... , especially in the case of N. gibberifrons. Recently, an increase in the C. aceratus stock has been observed ... intervals and until 1984 kept catches at a high level, each time for two subsequent seasons : the year ... recruiting an abundant year-class to the exploited stock. The biomass of other bottom species is more ... two fishing seasons (1978;79 and 1986/87), only catch rJsults of fishing vessels were used here. On ... influence on the results of biomass estimates for this species and total biomass was exerted by great ...

   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

8. The Patagonian toothfish (Dissostichus eleginoides) fishery in the Kerguelen Islands (Indian Ocean sector of the Southern Ocean)

   eleginoides) have been fished in the Kerguelen Islands zone for 20 years, firstly with trawlers and more ... distribution, timing and area of spawning, and movements between geographical sectors) on the adult section of ... observers on board fishing vessels. File:  01lord-etal.pdf ... the Kerguelen Islands zone for 20 years, firstly with trawlers and more recently with longliners ... entered in a single- table database called ‘Kerpêche’ for trawlers (split- years – 1 July to 30 June ... animals caught at different depths and in different sectors. The results for the two years analysed are ... complete one; all explana- tory variables have an effect on the trend in CPUE. For the factorial variable ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 1–25 : Auteur(s): Lord, C., G. Duhamel and P. Pruvost

9. Moulting interval and growth of juvenile Antarctic krill fed different concentrations of the diatom Phaenodactylum tricornutum in the laboratory

   0.047 mm day –1, which is too slow to support the hypothesised 2-year life-span of this animal in the ... –5.0 mgC 1 –1. Intermoult period (IP) decreased, but an increment of body length per moult (∆BL) of ... on IP or (∆BL was seen at concentration beyond 1.0 mgC 1 –1. IP plateaued at 23.8 days and (∆BL ... slow to support the hypothesised 2-year life-span of this animal in the field. Growth conditions of ... period (IP) decreased, but an increment of body length per moult (6BL) of juvenile krill increased, up ... postulada para este animal en la region. Se discuten las condiciones de crecirniento del krill en el ... to a concentration of 1.0 mgC 1-1 • No further effect of food concentrations on IP or 6BL was seen ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 223-225 : Auteur(s): Ikeda, T. and P.G. Thomas

10. Areal and seasonal extent of sea-ice cover off the northwestern side of the Antarctic Peninsula: 1979 to 1996

    Antarctic Peninsula: 1979 to 1996 Abstract / Description:  Analysis of seasonal sea-ice cover of an area ... with features described by Stammerjohn and Smith (1996) for ice cover in the Bellingshausen Sea ... of sea-ice cover were integrated over time to produce an annual index of sea-ice cover in units of 10 ... four periods of extensive ice cover during the last 18 years. Variability in seasonal timing, areal ... were subsampled for an area of 40 X 50 pixels (1.25 X 10Qm2) centred on the northwestern side of the ... Ocean: an analysis for the west Antarctic Peninsula region. AMS Sixth Conference on Climate Variations ... use of the same data sources to derive an index of ice cover for a larger area, encompassing the ... curves of sea-ice cover were drawn from monthly estimates for each year (Figure 2). The area under the ...

    Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 65–73 : Auteur(s): Hewitt, R

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