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1. Fishing patterns of Japanese krill trawlers

   strategies, especially focusing on their movement in time and space. The operations were grouped into ... , 30nm, and 60nm). Distribution of the operation units showed considerable variation in space and time ... with the plots of aggregated catch, suggesting these two kinds of CPUEs may not be good indices for ... expressing the status of krill in the fishing ground. Catch per fishing days maybe the reasonable index for ...

   Meeting Document : WG-EMM-02/28 Rev. 1 : Автор(ы): S. Kawaguchi, T. Kameda and Y. Takeuchi (Japan)

2. Consideration of major issues in ecosystem monitoring and management

   Abstract:  The requirements of an ecosystem approach to management of Southern Ocean resources are ... outlined. This highlights the need for information on harvested and dependent species their interaction and ... the manner in which their populations vary naturally. Large scale interactions are catered for the ... Krill Yield Model. Smaller scale interactions centre around three main categories, the availability of ...

   Meeting Document : WG-EMM-01/73 : Автор(ы): I. Everson (United Kingdom)

3. Measurements of fish school velocities with an acoustic Doppler current profiler

   ), it was required that the four ADCP beams simultaneously insonified a fish school, in the same depth ... estimates and ensemble averaged to determine the average speeds and directions of fish aggregations. The ... results suggests that the ADCP can be a useful tool for observing fish behavior in certain situations ... . Some applications may include the quantification of horizontal and vertical migration patterns of large ...

   Meeting Document : WG-EMM-96/41 : Автор(ы): Demer, D.A.

4. Reduced bait loss and bycatch of seabirds in longlining by using a seabird scarer

   , bycatch of seabirds on longlines is a problem in certain seasons and areas. Birds feeding on the bait ... during setting of the gear might cause considerable bait loss and occasional hooking of birds might ... eventually give high mortalities considering the large amounts of hooks used. Both from a fishery and bird ... a seabird scarer in the Norwegian longline fishery. The scarer, a line with streamers trailing ...

   Meeting Document : WG-IMALF-94/09 : Автор(ы): S. Løkkeborg and Å. Bjordal (Norway)

5. IMPLEMENTATION OF CCAMLR OBSERVER PROGRAM ON KRILL FISHERIES

   Abstract:  The aim of this document is to serve as an objective guideline to decide on an ... appropriate observer coverage to understand overall behaviour and impact of the fishery. CCAMLR Observer data ... , together with haul-by-haul fine-scale data were used to identify the target SSMUs and the critical periods ... as baseline to evaluate the level of observer coverage needed to achieve the CCAMLR objectives. The ...

   Meeting Document : TASO-09/07 : Автор(ы): Kawaguchi, S.

6. Further analysis of target strength measurements of Antarctic krill at 38 and 120 kHz: comparison with deformed cylinder model and inference of orientation distribution

   Abstract:  Data collected during the krill target strength experiment [J. Acoust. Soc. Am. 87, 16 ... -24(1990)] are examined in the light of a recent zooplankton scattering model where the ... elongatedanimals are modeled as deformed finite cylinders [J. Acoust. Soc. Am. 86, 691-705 (1989)].Exercise of the ... be made at each frequency. By requiring that the differencebetween predicted and measured target ...

   Meeting Document : WG-KRILL-93/06 : Автор(ы): D. Chu (USA), K.G. Foote (Norway) and T. K. Stanton (USA)

7. Uncertainty in green weight estimates from Norwegian krill fishing vessels

   an issue raised repeatedly within CCAMLR for a number of years, resulting in a modification to the C1 ... form implemented for the fleet in 2012. There are at present three Norwegian vessels operating in the ... krill fishery for Euphausia superba in the Antarctic. These vessels have in recent years contributed to ... 50-60 % of the total krill harvest, and reliable uncertainty estimates from these vessels will ...

   Meeting Document : WG-EMM-13/41 : Автор(ы): G. Skaret and T. Knutsen (Norway)

8. Progressing towards responsible, science-based and highly precautionary krill fisheries management

   Abstract:  Improving the management of the krill fishery is a key priority for ASOC. In this paper ... , we recommend several key actions that CCAMLR should take to ensure that management of the krill ... fishery remains highly precautionary and protects the needs of the full range of krill predators ... . Obtaining up to date krill biomass estimates, reviewing the CCAMLR Ecosystem Monitoring Program, reviewing ...

   Meeting Document : SC-CAMLR-XXXVI/BG/31 : Автор(ы): Submitted by ASOC

9. Annual migrations of pelagic fish stocks into a krill hotspot

   Abstract:  We report here on the existence of seasonal fish migrations into a krill hotspot ... , utilized both by central place foragers and the industry. We do not have trawl samples overlapping with the ... acoustic data, but the behaviour displayed suggests that the fish are planktivorous. Furthermore, the ... from krill on a single frequency. Trawl catches in the area during 2019 gave high densities of mackerel ...

   Meeting Document : WG-EMM-2019/33 : Автор(ы): T. Klevjer

10. Ross Sea Environment and Ecosystem Voyage 2019

    Abstract:  New Zealand carried out a 40-day voyage to the Ross Sea from 8 January to 16 February ... 2019 using the research vessel Tangaroa. The purpose of this multi-disciplinary research voyage was to ... increase knowledge about key environmental and biological processes in the Ross Sea region of Antarctica ... and the Southern Ocean, and thereby improve understanding of ecosystem function and likely responses ...

    Meeting Document : WG-EMM-2019/38 : Автор(ы): R.L. O’Driscoll, D. Bowden and M.H. Pinkerton

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