Résultats de la recherche

1. Note on relationship between the Antarctic krill and annual variation of ice edge during 1979 to 1992

   the sea ice in the sea area around the South Shetland Islands are described. Mean size of krill near ... Abstract:  During 1979 to 1991, relationship between the size of Antarctic krill and the extent of ... the coastal zone appeared to be small in summer season just after a strong ice extent had occurred ... . This implies that strong recruitment of small size krill had occurred just after the season with the ...

   Meeting Document : WG-KRILL-93/26 : Auteur(s): M. Naganobu and S. Kawaguchi (Japan)

2. A simple approach for calculating the potential yield of krill from biomass survey results

   Abstract:  Estimates are calculated for the parameter λ in the yield equation Y = λ M B0 for a ... kri11 fishery in which both the fishery and kri11 growth are seasonal. The criterion used for the ... calculations is that the probability that the kri11 spawning biomass drops below 20% of its average pre ... -exploitation level over a 20 year period of harvesting should not exceed l0%. The value of λ depends strongly ...

   Meeting Document : WG-KRILL-91/24 : Auteur(s): D.S. Butterworth (South Africa) and M. Basson (United Kingdom)

3. Krill: the power lunch of Antarctica

   coverage on board krill vessels, identifying priority objectives for research and development in support of ... the management of the krill fishery, conducting a new krill synoptic survey, keeping the trigger level ... procedures with the aim of reducing speculative notifications, and requiring mandatory ice-strengthening for ... krill fishing vessels. Author(s):  Submitted by ASOC Title:  Krill: the power lunch of Antarctica ...

   Meeting Document : CCAMLR-XXXIII/BG/25 : Auteur(s): Submitted by ASOC

4. Nesting behaviour of the icefish Chaenocephalus aceratus at Bouvetøya Island, Southern Ocean (CCAMLR Subarea 48.6)

   Abstract:  In this paper we describe in situ observations on nesting by the Scotia Sea (or ... blackfin) icefish Chaenocephalus aceratus that constitute the first substantive evidence of egg brooding ... and parental care by species of the family Channichthyidae. These novel observations are enriched by ... descriptions of the seafloor community that is impacted by fish nesting. Given the vulnerability of spawning ...

   Meeting Document : WG-FSA-04/26 : Auteur(s): H.W. Detrich III, C.D. Jones, S. Kim (USA), A.W. North (United Kingdom), A. Thurber (USA) and M. Vacchi (Italy)

5. Preliminary insights of Antarctic toothfish sub-adults life-history traits from the southern Weddell Sea (Subarea 48.5)

   Abstract:  A few sub-adults of the Antarctic toothfish (Dissostichus mawsoni) were collected by ... bottom trawling carried out by the RV Polarstern in the southern Weddell Sea (Subarea 48.5) (PS82, ANT ... -Larsen Ice Shelf. In this document we report first data on individual age, gonad stage of maturity and ... -XXIX/9, 19 December 2013- 5 March 2014). Fishes were caught on the shelf and slope off the Riiser ...

   Meeting Document : WG-FSA-18/06 : Auteur(s): M. La Mesa, F. Donato and E. Riginella

6. The use of predator-derived krill length-frequency distributions to calculate krill target strength

   calculated from acoustic data. Changes in the lengthfrequency distribution of krill over a period of a few ... Paper Title:  The use of predator-derived krill length-frequency distributions to calculate krill ... krill sampled from the diet of predators to provide a length-frequency distribution of krill at times ... to gain important estimates of krill biomass at times of the season hitherto unavailable from ... robust estimate of krill abundance to be calculated from acoustic data. Changes in the length ... resource management and to understanding the response of predators to environmental changes. In many ... , in order to consider the interaction between these two factors, measures of prey availability need ... is the Calculation of krill target strength ratio (in decibels, dB) that quantifies the ...

   Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 155–163 : Auteur(s): Reid, K. and A.S. Brierley

7. Tracer trajectories from the western shelf of South Georgia: ship displacement data

   the west of South Georgia. The data were collected over a six-week period during 1986. A distance ... weighted interpolation was used to obtain tracer trajectories in this irregular data grid. The vector field ... . Particles getting onto the shelf become retained with little escape after a run of 100 days. Some of the ... trajectories are extremely complex. Particles to the north of the shelf can get up onto the shelf. Only those ...

   Meeting Document : WS-Flux-94/10 : Auteur(s): E.J. Murphy, I. Everson and C. Goss (United Kingdom)

8. Biodiversity of the benthos off Kerguelen Islands: overview and perspectives

   number of species recorded from the Kerguelen has substantially increased. From 172 species reported by ... Arnaud (1974), the total number of species has increased dramatically to 735 (Jouventin et al., 1996) and ... then to 960 in the present study. This area is particularly vulnerable to human activities and global ... northern limit of the Polar Front is probably one of the best study areas to (1) monitor the impact of ...

   Meeting Document : WS-MPA-11/P03 : Auteur(s): N. Améziane, M. Eléaume, L.G. Hemery, F. Monniot, A. Hemery, M. Hautecoeur and A. Dettaï

9. The use of predator-derived krill length-frequency distributions to calculate krill target strength

   in the length-frequency distribution of krill over a period of few weeks produced a 10 % difference ... ecosystem based approach to resource management. We propose a method using krill sampled from the diet of ... krill biomass at times of the season hitherto unavailable from ship-board scientific surveys. Author(s ... ):  K. Reid and A.S. Brierley (United Kingdom) Title:  The use of predator-derived krill length ...

   Meeting Document : WG-EMM-00/42 : Auteur(s): K. Reid and A.S. Brierley (United Kingdom)

10. Quantification of Southern Ocean phytoplankton biomass and primary productivity via satellite observations and biogeochemical models (submitted to the 2008 Joint CCAMLR-IWC Workshop)

    regard to their use in the Southern Ocean. A brief history of algorithms linking ocean colour to primary ... / Description:  This paper reviews Southern Ocean primary productivity within the framework of satellite remote ... sensing and the development of food-web models. The satellite ocean colour (chlorophyll) data record is ... described, from the Coastal Zone Colour Scanner (CZCS) in the late 1970s through to the Ocean Colour and ... significant spatial and temporal vari- ability in primary productivity. It is also the region of the global ... estimates of all terms in the oce- anic carbon budget, including primary productiv- ity. In this paper ... use in the Southern Ocean. A brief history of al- gorithms linking ocean colour to primary ... blooms is presented for the major provinces surrounding Antarctica. Some of the published in- formation ...

    Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 247–265 : Auteur(s): P.G. Strutton, N.S. Lovenduski, M. Mongin and R. Matear

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