Résultats de la recherche

1. Development of a vessel safety checklist and debriefing protocol for use in SISO

   Abstract:  In accordance with the recommendations of the 2013 Panel Review of the CCAMLR Scheme of ... of SISO recommends the performance of a vessel safety check (see proposed Annex II in CCAMLR-XXXVI/25 ... approved by the Commission (proposed A(e bis) in CCAMLR-XXXVI/25).  This paper provides examples of vessel ... ) prior to observer deployment, as well as the use of a form and protocol for debriefing observers to be ...

   Meeting Document : CCAMLR-XXXVI/BG/16 : Auteur(s): Delegation of the USA

2. Preliminary stock assessment of Rajiformes in statistical Subarea 48.3

   simple Petersen model estimation of the population trends. The bycaught Rajiformes in subarea 48.3 are ... CCAMLR longline fisheries. However, they form a major part of the bycatch and as such it is necessary to ... understand the effect of each fishery on the Rajiformes population. Here we describe biological information ... gained from the skate tag-release programme in statistical subarea 48.3 and use the tag recaptures for a ...

   Meeting Document : WG-FSA-14/48 : Auteur(s): M. Soeffker, V. Laptikhovsky, J. Ellis and C. Darby (United Kingdom)

3. Characteristics of krill aggregations in 48.4 subdivision during January–February 2000

   characteristics of some 2400 krill swarms detected and sized acoustically in the study area have been described ... been made an analysis of krill biomass horizontal and vertical distributions in the study area in ... . Major krill biomass (of about 64%) was concentrated in krill swarms within the meander and eddies zones ... of the Weddell Sea (14% of study area), being observed in upper 80 m depth level. There has been made ...

   Meeting Document : WG-EMM-01/42 : Auteur(s): S.M. Kasatkina, A.P. Malyshko, V.N.Shnar and O.A. Berezhinskiy (Russia)

4. A REVIEW OF BIAS AND UNCERTAINTY IN ANTARCTIC PACK-ICE SEAL ABUNDANCE ESTIMATES

   of pack-ice seals focuses primarily on abundance and to a lesser extent trends in abundance. The ... present day. The review of abundance surveys is presented chronologically, and in doing so tries to ... Abstract:  While the joint CCAMLR-IWC workshop will consider a number of parameters for species ... review addresses population surveys and abundance estimates for the four species of phocid seal commonly ...

   Meeting Document : CCAMLR-IWC-WS-08/06 : Auteur(s): Steinhage, D., Bengtson, J., Blix, A.S., Bester, M., Boveng, P., Laake, J., Cameron, M., Nordøy, E., Forcada, J., Stewart, B., Southwell, C., Trathan, P., Rogers, T., Plotz, J., Bornemann, H.

5. Species variability and population structure of Euphausiacea in Admiralty Bay (King George Island; South Shetland Islands) during Antarctic summer

   Abstract:  The main component of zooplankton in Antarctic pelagic waters, apart from copepods or ... in the central part of Admiralty Bay, in Ezcurra Inlet and in the smaller coves of the bay using the ... of the penguins and pinnipeds’ diet. Admiralty Bay, because of its specific hydrological conditions ... make this region particularly susceptible to climate change. This area is also a breeding site of the ...

   Meeting Document : WG-EMM-14/60 : Auteur(s): A. Panasiuk-Chodnicka, J. Wawrzynek and M. Iwona Żmijewska (Poland)

6. Two decades of variability in krill predators at Bird Island, South Georgia and their potential as ecosystem indicators

   Abstract:  The breeding performance of seabirds and seals at Bird Island, South Georgia, in the ... penguins. Offspring survival and hence PRP were largely independent of krill in the diet for macaroni ... monitoring programme. We examined the mechanistic relationships between, and patterns of inter-annual ... included foraging performance, offspring survival, offspring mass, the contribution of Antarctic krill ...

   Meeting Document : WG-EMM-12/16 : Auteur(s): S.L. Hill, C.M. Waluda, H.J. Peat and S. Fielding (United Kingdom)

7. Broadbandwidth total target strength measurements of Antarctic krill (Euphausia superba) from reverberation in a cavity

   each fc was extracted from a correlation analysis of energy reverberated in the tank. Measurement ... omnidirectional emitter into one of three glass carboys containing groups of krill swimming in 9.3, 19.3 or 45.9 l ... of seawater (0.6??temperature??3.6 °C). Between each pulse, the krill moved within the fixed-boundary ... . At each center frequency (fc), the coherent energy in 200-pulse ensembles identified sound scattered ...

   Meeting Document : WG-EMM-02/49 : Auteur(s): D.A. Demer and S. G. Conti (USA)

8. Towards a validation of ageing in mackerel icefish (Champsocephalus gunnari) – can we estimate age more accurately?

   briefly summarizes the state of knowledge on age determination in mackerel icefish and assesses the ... ototlith exchange programme in the late 1980’s revealed considerable differences between readers when fish ... older than 3 or 4 years were aged. These differences could not be reconciled at the end of the exchange ... . A second age determination workshop on mackerel icefish to improve the accuracy of age determination ...

   Meeting Document : WG-FSA-05/23 : Auteur(s): K.-H. Kock (Germany) and Zh.A. Frolkina (Russia)

9. Experimental acoustic survey of icefish resources in Subarea 48.3, 2005

   Abstract:  This report describes the activities and preliminary results of the research carried ... behalf of UK authorities. Survey Objectives The primary objectives of the proposed survey were to ... : • Refine methods for estimating icefish biomass using acoustics. • Examine temporal changes in the vertical ... . • Provide more information on the distribution of the benthos on the South Georgia shelf. • Monitor ...

   Meeting Document : WG-FSA-05/79 : Auteur(s): M. Belchier, M. Collins (United Kingdom), R. O’Driscoll (New Zealand), S. Clarke and W. Reid (United Kingdom)

10. Blue-eyed shags as indicators of changes in ittora fish populations

    species identified by the examinations of otoliths present in regurgitated cast and those regularly ... Abstract:  The use of Shag’s pellets as an appropriate technique to monitor the abundance of ... littoral fish populations is presented for consideration of the CCAMLR Ecosystem Monitoring Program Working ... Group. The effectiveness of the method is based on the very good agreement found between the fish ...

    Meeting Document : WG-CEMP-93/25 Rev. 1 : Auteur(s): R. Casaux and E. Barrera-Oro (Argentina)

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