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1. A summary of the commercial fishery for mackerel icefish Champsocephalus gunnari in Subarea 48.3 during the 1997/98 season

   days between 25 December 1997 and 5 January 1998. The total catch of C. gunnari was 5.04 tonnes in 34 ... hauls. 67% of this catch was taken in just two hauls, confirming the patchy distribution of this species ... . Most of the catch was made up of fish between 22 and 30 cm long. Fish of this size range have ... previously been shown to be ages two and three. The catch of species other than C. gunnari amounted to only ...

   Meeting Document : WG-FSA-98/53 : Autor(es): G. Parkes, A. King and C. Jones (United Kingdom)

2. PROPOSED APPROACH FOR THE IDENTIFICATION OF IMPORTANT MARINE AREAS FOR CONSERVATION: USING ‘MARXAN’ SOFTWARE TO SUPPORT SYSTEMATIC CONSERVATION PLANNING

   Abstract:  We provide a worked example of how a systematic conservation planning methodology ... (Margules & Pressey, 2000) might be used to identify important areas for conservation of biodiversity in ... the pelagic environment, using Subarea 48.2 (South Orkney Islands) as a pilot study area. The aim of ... test the utility of this methodology, and to demonstrate the types of data and the range of decisions ...

   Meeting Document : WG-EMM-08/49 : Autor(es): S.M. Grant, J. Tratalos and P.N. Trathan (United Kingdom)

3. Horizontal and vertical distribution and demography of euphausiids in the Ross Sea and its adjacent waters in 2004/2005

   Abstract:  The horizontal and vertical distribution and population structure of euphausiids in the ... Ross Sea and its adjacent waters were investigated during the summers of 2004/2005 using stratified ... towed samples. Nine species of euphausiids occurred in the survey area. Among them, Euphausia triacantha ... was dominant in biomass north of the southern boundary of the Antarctic circumpolar current (SB ...

   Meeting Document : WG-EMM-08/P10 : Autor(es): K. Taki, T. Yabuki, Y. Noiri, T. Hayashi and M. Naganobu

4. DATA ON FEEDING AND FOOD OBJECTS OF SOUTHERN MINKE WHALES

   Abstract:  Presented research on feeding and the dietary structure by species of minke whales ... conducted in all four seasons. There have been no noticeable increase of the population size of large whales ... over the years after the cessation of whaling. The role of a short and profitable from the energy point ... of view trophic chain «phytoplankton- krill- baleen whales», which is of main interest due to the ...

   Meeting Document : WG-EMM-08/25 : Autor(es): S.G. Bushuev (Ukraine)

5. ESTIMATING THE SWEPT AREA OF DEMERSAL LONGLINES BASED ON IN-SITU VIDEO FOOTAGE

   , the section of line visible to the camera swept sideways, interacting with sessile benthic organisms ... before leaving the seafloor. Based on an estimate of the rate of sideways movement, the total time ... sideways movement occurred before the line lifted off the seafloor, the total length of the line and the ... total time to retrieve the line, we estimate that up to 0.122 km2 of seafloor was swept by the line ...

   Meeting Document : WG-FSA-08/58 : Autor(es): D. Welsford and R. Kilpatrick (Australia)

6. AN UPDATED DESCRIPTION AND PARAMETERISATION OF THE SPATIAL MULTI-SPECIES OPERATING MODEL (SMOM )

   Abstract:  An updated version of the Spatial Multi-species Operating Model (SMOM) of krill ... advice regarding the subdivision of the precautionary catch limit for krill among 15 small-scale ... management units (SSMUs) in the Scotia Sea, to reduce the potential impact of fishing on land-based predators ... of 15 SSMUs. A number of updates have been made to the model such as linking krill growth rate to sea ...

   Meeting Document : WG-SAM-08/17 : Autor(es): É.E. Plagányi and D.S. Butterworth (South Africa)

7. Laboratory target strength measurements of free swimming Antarctic krill (Euphausia superba)

   Abstract:  Target strength measurements of free swimming krill at 120kHz were made using a single ... were calculated indirectly by deconvolution of the cumulative probability function of echo ensembles of ... evaluate the effects of varying the ratio of largest to smallest echo amplitudes for a given ensemble, thus ... enabling the estimation of threshold induced bias in the target strength estimates. The threshold induced ...

   Meeting Document : WG-EMM-97/75 : Autor(es): Pauly, T., Penrose, J.D.

8. Biological acoustic survey in the marginal ice edge zone of the Bellingshausen Sea

   Bellingshausen Sea from 23 November to 7 December 1992 as part of the UK Joint Global Ocean Flux Study (JGOFS ... ) Southern Ocean investigations (TuRNER and OWENS, 1995). A total of 285 targets were identified and ... described from the chart record of the echo sounder. Mean Volume Backscattering Strength data were collected ... of krill (Euphausia superba) distribution and biomass in the marginal ice edge zone. Krill biomass ...

   Meeting Document : WG-Krill-94/32 : Autor(es): A.W.A. Murray, J.L. Watkins and D.G. Bone (United Kingdom)

9. Modelling crustacean fisheries: effects of parasites on management strategies

   Abstract:  The reproductive performance of commercially important crustaceans may be considerably ... dynamics of both host and parasite. For a certain spatial scale, recruitment to a population may be " ... ;open" or "closed" depending on the behavior of planktonic larvae, the duration of these ... planktonic stages, and the flush rate of the environment of the adult host. Both hosts and parasites may have ...

   Meeting Document : WS-CRAB-93/09 : Autor(es): A.M. Kuris and K.D. Lafferty (USA)

10. A guideline for collection, analysing and preparation of report on material collected by a biologist-observer on board a commercial trawler (Draft)

    Abstract:  Main outlines of E. superba material collection (sampling from commercial catches) and ... positions of samples examination are reviewed and described. These positions include mass-measuring of body ... length, examination of maturity stages composition (biological analysis), feeding activity observation ... and body weight determination. Periodicity of sampling and volume of samples for every position of ...

    Meeting Document : WG-KRILL-92/10 : Autor(es): V.I. Latogursky and R.R. Makarov (Russia)

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