Résultats de la recherche

1. Measurements of sound-speed and density contrasts of Antarctic krill (Euphausia superba) on board RV Kaiyo Maru

   Abstract:  In order to calculate the target strength of Antarctic krill (Euphausia superba) using ... -density contrasts between the animal and the surrounding water are required. Sound-speed and mass-density ... of krill were measured during the Antarctic surveys conducted by the Japanese RV Kaiyo Maru in 1999 ... density bottle method. The mean total length and the mean mass-density contrast were 43.5mm and 1.028 near ...

   Meeting Document : WG-EMM-08/56 Rev. 1 : Auteur(s): Y. Takao, H. Yasuma, R. Matsukura, K. Amakasu and M. Naganobu (Japan)

2. Variability in krill length distribution in 48.1 derived from data collected by scientific observers

   Abstract:  Information on the length distribution of krill in the catch, and the spatial and ... temporal patterns of krill length in the population is essential to assess krill population status and ... dynamics, and the impacts of a fishery on the stocks. Here, we use generalised additive models (GAM) and ... generalised additive mixed models (GAMM) to evaluate the spatial and temporal patterns of length in Antarctic ...

   Meeting Document : WG-EMM-15/16 : Auteur(s): P. Ziegler, S. Kawaguchi D. Welsford and A. Constable (Australia)

3. Proposition visant à la mise au point et à la révision des documents favorisant la communication des activités scientifiques du Comité scientifique par le biais de l'outil utilisé actuellement par le secrétariat pour mettre au point les rapports

   .  With the advent of the web-based technology for rapporteurs and Members to jointly develop reports of ... meetings, the Secretariat has indicated that it would be possible to use a similar approach for developing ... .  It is proposed that the Scientific Committee develop an expanded set of reference documents as part ... of its strategy for communicating the history and status of its science to the Commission, the wider ...

   Meeting Document : SC-CAMLR-XXXIV/02 : Auteur(s): Delegation of Australia

4. Impact of predation by Cape fur seals Arctocephalus pusillus on Cape gannets Morus capensis at Malgas Island, Western Cape, South Africa

   (Morus capensis) fledglings around Malgas Island in the 2000/01 breeding season, 11 000 in 2003/04 and 10 ... 000 in 2005/06. This amounted to about 29%, 83% and 57% of the overall production of fledglings at the ... sustainable. There was a 25% reduction in the size of the colony, the second largest of only six extant Cape ... seals on seabirds around southern African islands since the mid 1980s, coincidental with both an ...

   Meeting Document : WG-EMM-06/9 : Auteur(s): A.B. Makhado, R.J.M. Crawford and L.G. Underhill (South Africa)

5. Seal mitigation measures on trawl vessels fishing for krill in CCAMLR Subarea 48.3.

   Abstract:  At the 2004 meeting of the Working Group on Ecosystem Monitoring and Management (WG-EMM ... ) in Siena, Italy, the UK reported on the by-catch of fur seals (Arctocephalus gazella) in the krill ... fur seal deaths in the fishery. WG-EMM requested that the UK provide further details of the methods ... employed for consideration by the ad hoc Working Group on Incidental Mortality Arising from Fishing (WG ...

   Meeting Document : WG-FSA-05/P1 : Auteur(s): Charman, C., Clark, J., Hooper, J., Agnew, D.

6. Ideal survey patterns: an example of using a simulated world

   criteria. The shot selection criteria can be either that locations of known good quality are preferentially ... selected or that locations are selected at random. The landscape and fishery are simulated in a spatially ... explicit Monte Carlo model and the use of such models to study these issues is considered along with their ... interest about the fished population? If and when can the catch/effort data be used as a measure of the ...

   Meeting Document : WG-FSA-01/75 : Auteur(s): I.R. Ball and A.J. Constable (Australia)

7. PRELIMINARY ESTIMATION OF PENGUIN BREEDING ABUNDANCE AT SPATIAL-SCALES OF RELEVANCE TO CCAMLR: INCORPORATING UNCERTAINTY IN COUNT DATA

   Abstract:  One recommendation from the Predator Survey workshop was the undertaking of some ... immediate inter-sessional work to be reported to WG-EMM-08. The work to be undertaken included preliminary ... Antarctic data for Adélie penguins. It was recognised that the abundance estimates would not be corrected ... for availability (e.g. nest failure) and hence would to some extent be biased estimates of the ...

   Meeting Document : WG-EMM-08/53 : Auteur(s): H. Lynch, R. Naveen (USA), J. McKinlay, C. Southwell (Australia), P. Trathan (United Kingdom), W. Trivelpiece, S. Trivelpiece (USA) and D. Ramm (CCAMLR Secretariat)

8. Statistical problems in krill stock hydroacoustic assessments

   Abstract:  Two primary issues are at question for hydroacoustic assessments of krill, The first is ... the methods applied to establish biomass in a survey area and the second is the improvement in ... accuracy of target-strength measurements. In the case of statistical methods, there are no clear guidelines ... for deciding what method is most appropriate, this is made even more difficult by the fact that most ...

   Meeting Document : SC-CAMLR-VII/BG/22 : Auteur(s): United States of America

9. Finfish research proposals for Subarea 48.6 and Divisions 58.5.2; 58.4.3a by Koryo Maru 11 for 2012/13

   has contributed to the scientific rationale for ecosystem management in a large area of the Southern ... oceans. Recently South Africa also initiated a new research plan within its EEZ around the Prince Edward ... Islands that acknowledges the objectives of the Commission for the responsible management of Antarctic ... Marine Living Resources.  The Koryo Maru 11 started with exploratory fishing in the CCAMLR Convention ...

   Meeting Document : WG-SAM-12/21 : Auteur(s): R. Ball (South Africa)

10. Report of vulnerable marine ecosystems in South Georgia Islands (CCAMLR Subarea 48.3) through research dredge sampling

    Abstract:  In this contribution we report the presence of 6 vulnerable marine ecosystems (VME ... ) around the South Georgias archipelago (CCAMLR Subarea 48.3). These areas, which  are proposed for ... inclusion in the CCAMLR VME registry, were detected during a research cruise performed by the National ... Institute of Fishery Research and Development (INIDEP) and the Argentine Antarctic Institute (IAA) during ...

    Meeting Document : WG-FSA-13/58 : Auteur(s): E. Gaitán, L. Schejter, D. Giberto, M. Escolar and C. Bremec (Argentina)

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