Résultats de la recherche

1. Evaluation on the performance of echosounder on a fishing vessel using maximum seabed backscattering

   Abstract:  The performance of echo sounder system is critical for using acoustic data collected ... evaluate the potential to use seabed backscattering as an alternative way to the standard sphere ... calibration. The largest inter-annual difference of the mean value of the maximum seabed backscattering (S v ... , respectively. However, ANOVA analysis indicated that there was no significant difference among years at both ...

   Meeting Document : SG-ASAM-18/06 : Auteur(s): X. Wang, X. Yu and X. Zhao

2. Developing conceptual models of the Antarctic marine ecosystem: squid

   Abstract:  The Convention for the Conservation of Antarctic Marine Living Resources (CCAMLR) is ... currently considering plausible models of the Southern Ocean ecosystem within the Working Group on Ecosystem ... describes properties for three groups of squid that may be included in future ecosystem models of the ... should no longer be modelled as specialist predators on Antarctic krill. Author(s):  K. Phillips ...

   Meeting Document : WG-EMM-04/26 : Auteur(s): K. Phillips (Australia)

3. Barcoding and beyond: applications and developments for biodiversity evaluation in the Southern Ocean

   Abstract:  DNA barcoding is a valuable tool for biodiversity studies in the Southern Ocean. It can ... be combined with other types of systematics data (morphology, other sequence markers) to reassess the ... for fisheries, ecology or large scale biodiversity surveys. The rise of Next Generation Sequencing ... (NGS) techniques in the last 15 years has provided exciting new developments in classical barcoding ...

   Meeting Document : WG-EMM-2019/54 : Auteur(s): A. Dettai, G. Duhamel, C. Gallut, M. Eléaume and A. Martin

4. CONVERSION FACTORS AND GREEN WEIGHT CALCULATION IN THE ANTARCTIC KRILL FISHERY

   ; The variation in reported conversion factors for similar reported products can be attributed to a ... number of reasons:.; o Differences in the method of processing the same products o Seasonal variation o ... total catch estimates as the majority of vessels interviewed made direct estimates of green weight ... Clark, J., Peatman, T. Title:  CONVERSION FACTORS AND GREEN WEIGHT CALCULATION IN THE ANTARCTIC KRILL ...

   Meeting Document : TASO-09/06 : Auteur(s): Moir Clark, J., Peatman, T.

5. Genetic analysis of skates (Amblyraja spp.) caught as by-catch around South Georgia and the South Sandwich Islands

   within CCAMLR subareas 48.3 and 48.4. Morphological evaluations of the by-catch in these subareas ... indicate that up to three species from the skate genus Amblyraja occur: A. georgiana, A. georgiana sp. anon ... and Amblyraja taaf. In this report, we present results from the first population genetic analysis of ... (geography), rather than morphology, that is the major determinant of population differentiation in these ...

   Meeting Document : WG-FSA-18/73 : Auteur(s): W.P. Goodall-Copestake, S. Perez-Espona, P. Hollyman and M. Belchier

6. Mercury in the coastal Antarctic ecosystem: Initial findings

   understand how Antarctic environments respond to globally reducing Hg emission with the Minamata Convention ... fragmented. Therefore, our goal is to add to the existing information and build a framework for long term ... .-W. Jung Title:  Mercury in the coastal Antarctic ecosystem: Initial findings Approval:  Approved ... Secretariat Workflow Status:  Content Approved Document Release Consent:  No Delegation responsibility for ...

   Meeting Document : WG-EMM-2019/51 Rev. 1 : Auteur(s): E. Kim, Z. Baumann, J.-H. Kim and J.-W. Jung

7. Exploratory analysis of acoustic data from the Ross Sea

   files), the file was corrupted (1 file), or the longline was lost so there were no corresponding catch ... Abstract:  This report presents results from a pilot study to determine the feasibility of ... conducting acoustic surveys for toothfish and rattails in the Ross Sea. Acoustic data were collected using a ... Simrad ES60 38 kHz echosounder on the New Zealand commercial longliner FV Janas during the 2002–03 ...

   Meeting Document : WG-FSA-SAM 03/9 : Auteur(s): R.L. O’Driscoll and G.J. Macaulay (New Zealand)

8. CALIBRATION ERROR IN THE AMLR PLANKTON TIME SERIES

   of rotor counts from the flow meters showed no significant trends. The discrepancy in volume is ... Abstract:  Analysis of the time series of the volume of water filtered during tows using a 1.8 m ... Isaac-Kidd Midwater Trawl (IKMT) from 1992 to 2007 showed a marked decline (~35%) in the volume of water ... traced to a simple arithmetic error in the calculation of the mouth area of the net. Since 2000, the net ...

   Meeting Document : WG-EMM-08/19 : Auteur(s): C. Reiss (USA)

9. Next steps in development of Marine Protected Area in the Argentine Islands Archipelago water area

   Abstract:  The results of the research aimed at further substantiation and development of the ... Marine Protected Area in the area of the Ukrainian Antarctic Station Academician Vernadsky are presented ... . In order to study the structure and biodiversity of benthic communities in the water area of the ... Argentine Islands, the underwater research and acoustic survey were conducted. During the period of 2014 ...

   Meeting Document : WG-EMM-18/32 : Auteur(s): A. Utevsky, E. Sinna, D. Smyrov, M. Shrestha, Y. Gamulya, G. Ukhno, R. Khodzhaeva, Y. Utevsky, V. Levenets and S. Utevsky

10. Fish by-catch in the krill fishery: 2018 update

    Abstract:  Data on fish bycatch in the krill fishery from commercial catch data (120 949 hauls ... ) and CCAMLR SISO data (17 455 hauls) up to 20 Sept 2018 was used to examine the frequency of occurrence ... , length-frequency distribution and geographic provenance of the key fish taxa reported. There is an ... increase in the data quality from the observer scheme and an increase in the frequency of fish bycatch in ...

    Meeting Document : WG-FSA-18/10 : Auteur(s): CCAMLR Secretariat

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