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1. Summary of Ross Sea skate tagging programme results

   Abstract:  Over 9,000 skates have been tagged and released in the Ross Sea over a period of seven ... 1,000 m and tagged. In-water tagging greatly reduces the incidence of broken jaws in skates, and ... years, and 47 (0.5%) have been recaptured. The recapture of tagged Amblyraja georgiana after up to four ... probably increases the survival of released animals. Unfortunately, this means that length at release can ...

   Meeting Document : WG-FSA-06/32 : Автор(ы): S.L. Ballara, A. Dunn and M.P. Francis (New Zealand)

2. Net sample validation of acoustic techniques used to identify and size Antarctic krill

   echo-charts were also identified as krill on the basis of their difference in backscatter at 38 and 120 ... the functionality of acoustic target identification techniques. Mean volume backscattering strength ... collected with an RMT8. Around 80 % of the targets thought to be krill on the basis of their appearance on ... identified and distinguished from all other types of backscatter. Traditionally this has been achieved by ...

   Meeting Document : WG-EMM-97/46 : Автор(ы): Watkins, J.L., Brierley, A.S.

3. Distribution and biology of grey notothen (Lepidonotothen squamifrons) around South Georgia and Shag Rocks (Southern Ocean) CCAMLR Subarea 48.3.

   distribution, size, maturity, and diet. Distribution was patchy with aggregations in specific ‘hotspots’ to the ... east of Shag Rocks and the west of South Georgia. Reliable biomass estimates were not possible due to ... recognisable cohort progression and a trend of increasing size over time indicating a potential recovery of the ... knowledge of L. squamifrons in this region will be valuable in future research on habitat and foodweb ...

   Meeting Document : WG-FSA-12/34 : Автор(ы): S. Gregory, J. Brown and M. Belchier (United Kingdom)

4. Spatial distribution of Champsocephalus gunnari size and age are related with depth

   all species resulted significantly associated with depth, positively in the case of C. gunnari and N ... Abstract:  The results of four fish surveys (EDUARDO L HOLMBERG 1994 to 1997) are analyzed to ... detect associations between the sizes of Champsocephalus gunnari (also age classes), Gobionotothen ... . rossii and negatively for the remaining species. Less association with depth is observed in C. gunnari as ...

   Meeting Document : WG-FSA-97/45 : Автор(ы): Marschoff, E.R., Serra, J.A., Gonzalez, B., Calcagno, J.

5. Acoustic data analysis and models of krill spatial distribution

   used in three descriptors of krill spatial aggregation: power spectra for krill biomass fluctuations in ... space, semivariogram (spatial autocorrelation of krill biomass) and the frequency distribution of krill ... biomass estimate. The wavenumber spectrum resembles a white noise at scales of 2-20 km, although at scales ... smaller than 1 km the spectrum appears to lose its power significantly. The semivariance of biomass does ...

   Meeting Document : SC-CAMLR-VII/BG/25 : Автор(ы): United States of America

6. Long-distance movements of Patagonian (Dissostichus eleginoides) and Antarctic toothfish (D. mawsoni) from fishery-based mark-recapture data

   Ecuador to Uruguay, and in the sub-Antarctic and Antarctic while Antarctic toothfish (D. mawsoni) are ... found closer to the Antarctic continental shelf and generally south of the Polar Frontal Zone. Data from ... existing tagging studies indicate that both species are generally non-migratory with the majority of ... 067 fish tagged and released of which 2 072 (3.0%) have been recaptured; the  median distance between ...

   Meeting Document : WG-FSA-17/06 : Автор(ы): CCAMLR Secretariat

7. Summary of monitoring and research activities at Svarthamaren, Dronning Maud Land

   -178,240 (mean 119,000). Assuming that about 10 % of the colony is situated in inaccessible parts outside ... in addition to the numbers of birds breeding. Author(s):  Lorentsen, S., Tveraa, T., Røv, N. Title ... the area covered by the monitoring system the mean number of pairs producing a chick each year is ... of the population monitoring show that the number of pairs with chick or egg varied between 55,387 ...

   Meeting Document : WG-EMM-97/78 : Автор(ы): Lorentsen, S., Tveraa, T., Røv, N.

8. Detection of predator dive patterns from stationary echosounder data

   clear patterns in the dive data with regards to time of year as well as time of day. At the temporal ... Abstract:  Standard protocols for processing of echosounder data are geared towards the estimation ... of biomass indices of pelagic organisms. More transient visitors to the watercolumn however also give ... echoes, and the data provided by the echosounders may be used to assess the behaviour of these organisms ...

   Meeting Document : WG-EMM-2019/34 : Автор(ы): T. Klevjer and G. Skaret

9. Trade data analysis – Annual report of global toothfish trade data

   forms with mean unit values of 24.03 US$/kg for imports and 23.40 US$/kg for exports. The data ... sources for the trade of toothfish products for the 2018 calendar year. The analysis has identified that ... identified the largest importer was the United States of America (USA), accounting for 36.50% of the global ... import market. The largest exporter was Chile accounting for 17.90% of the global export market ...

   Meeting Document : CCAMLR-38/BG/09 : Автор(ы): CCAMLR Secretariat

10. Characteristics of krill swarms from Prydz Bay

    survey of Prydz Bay, Antarctica, in December 1990. Swarm length, depth, thickness, MVBS and interswarm ... length was calculated for swarms of euphausids encountered along a 78 km transect over the continental ... crystallorophias. An increase in swarm length was seen with increasing distance from the coast. Author(s):  D.J ... Abstract:  The CCAMLR.AUS dataset available to the Subgroup on Survey Design was derived from a ...

    Meeting Document : WG-KRILL-91/07 : Автор(ы): D.J. Agnew (Secretariat) and I.R. Higginbottom (Australia)

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