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1. IN SITU MEASUREMENTS OF TILT ANGLE DISTRIBUTION AND TARGET STRENGTH IN ANTARCTIC KRILL (EUPHAUSIA SUPERBA)

   Abstract:  Knowledge of the scattering properties of Antarctic krill (Euphausia superba) is ... scarce. We conducted a field study in the Southern Ocean where one of the objectives was to acquire data ... on orientation angles and target strength of Antarctic krill. The main investigations were done off ... data acquired. The post-processing and analyses are ongoing and the results from this work will be ...

   Meeting Document : WG-EMM-08/29 : Автор(ы): G. Skaret, S.A. Iversen, T. Knutsen, R.J. Korneliussen, E. Ona, R. Pedersen, A. Totland, T. Torkelsen (Norway) and X. Zhao (China)

2. Spatial distribution and swarm characteristics of Antarctic krill around the South Shetland Islands

   Abstract:  The spatial distribution and swarm characteristics of Antarctic krill were studied ... using the swarm-based method established in SG-ASAM-17. Acoustic data were collected from the FV Fu Rong ... , thickness and length of swarms were estimated from the 120kHz data. The full spatial distributions of ... acoustic density were obtained with Kriging space interpolation, which showed that krill usually aggregated ...

   Meeting Document : WG-EMM-18/42 : Автор(ы): X. Yu, X. Wang and X. Zhao

3. Are penguins and seals in competition for Antarctic krill at South Georgia?

   , respectively, the main mammal and bird consumers of Antarctic krill (Euphausia superba). In recent years the ... krill of similar size ranges, dive to similar depths and are restricted in their foraging range at least ... leading to the decline in their population. We used: (1) satellite-tracking data to investigate the ... seasons of 1999 and 2000 and (2) diet data to assess potential changes in their trophic niches between ...

   Meeting Document : WG-EMM-02/22 : Автор(ы): K.E. Barlow, I.L. Boyd, J.P. Croxall, K. Reid, U.J. Staniland and A.S. Brierley (United Kingdom)

4. A simulation study of krill fishing by an individual Japanese trawler (SC-CAMLR-VI/BG/37)

   Japanese krill trawler over a half-month period. It is based on an underlying krill distribution model ... the operation is compared with (and partially tuned to) statistics for a sample of data from the ... : artificially elongating krill swarms, and allowing hauls to continue through more than one swarm. Twenty four ... candidate abundance indices (generally of a CPUE form) for krill biomass in the 600 n.mile square oceanic ...

   Meeting Document : WS-KCPUE-89/04 : Автор(ы): D.S. Butterworth (South Africa)

5. A simulation study of krill fishing by an individual JAPANESE trawler

   Japanese krill trawler over a half-month period. It is based on an underlying krill distribution model ... the operation is compared with (and partially tuned to) statistics for a sample of data from the ... : artificially elongating krill swarms, and allowing hauls to continue through more than one swarm. Twenty four ... candidate abundance indices (generally of a CPUE form) for krill biomass in the 600 n.mile square oceanic ...

   Meeting Document : SC-CAMLR-VII/BG/37 : Автор(ы): D.S. Butterworth (Invited Expert)

6. A simulation study of krill fishing by an individual Japanese trawler

   Paper Title:  A simulation study of krill fishing by an individual Japanese trawler Abstract ... krill trawler over a half-month period. It is based on an underlying krill distribution model whose ... is compared with (and partially tuned to) statistics for a sample of data from the commercial fishery ... elongating krill swarms, and allowing hauls to continue through more than one swarm. Twenty four candidate ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 1–108 : Автор(ы): Butterworth, D.S.

7. Finfish by-catch in the krill fishery for the 2010 and 2011 seasons

   -catch. This paper uses data collected using the fish sampling protocol (K12) during 2010 and 2011 in ... order to estimate finfish by-catch in the krill fishery. The information regarding by-catch of finfish ... in the krill fishery is limited and 2010 was the first year when the simplified sub-sampling method ... was used.  With more data from the upcoming season and greater observer coverage across the fishing ...

   Meeting Document : WG-FSA-11/05 : Автор(ы): Secretariat

8. An integrated assessment model for Antarctic krill: progress update

   under development for Antarctic krill are compared to estimates from CMIX and TrawlCI using the same net ... trawl data. The different configurations of the integrated model were varied based on whether acoustic ... data or net densities were used as model inputs for the biomass data, on how the biomass data were ... whether a narrow or wide version of the age-length transition matrix was used. The biomass data calculated ...

   Meeting Document : WG-EMM-12/27 : Автор(ы): D. Kinzey, G. Watters and C. Reiss (USA)

9. Different CPUE types in Soviet krill fishery statistics in 1977–1992

   Abstract:  The various CPUE indices used in Soviet krill fishery statistics and their main sources ... and primary data for their calculations were considered. The main CPUE indices were catch per fishing ... day (CFD), catch per extended fishing day (CEFD) and catch per hour (CH). The primary data for all the ... fishery: human consumption, krill meal and frozen krill. When considered separately for different ...

   Meeting Document : WG-EMM-03/35 : Автор(ы): F.F. Litvinov, A.Z. Sundakov and V. Arkhipov (Russia)

10. An outline of narrowband echosounder survey methods to estimate biomass of Antarctic krill in CCAMLR Division 58.4.1 during 2018/19 season by the Japanese survey vessel, Kaiyo-maru

    Abstract:  Japanese multidisciplinary survey with a focus on biomass estimation of Antarctic krill ... standard-method. Three-frequency (38, 120 and 200 kHz) krill identification method which is the current ... CCAMLR standard will be employed in the analysis but utility of 70 kHz data will also be investigated ... . Measurements of acoustic impedances (mass density and sound-speed contrasts) of krill will also be conducted ...

    Meeting Document : SG-ASAM-18/02 : Автор(ы): K. Abe, K. Amakasu, R. Matsukura, T. Mukai and H. Murase

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