Résultats de la recherche

1. Autoliners and seabird by-catch: do line setters increase the sink rate of integrated weight longlines?

   effectiveness of line setters in increasing sink rates of IW longlines. Time-depth recorders were deployed along ... magazines of line set with and without a line setter using a paired treatment design. Sink rates of ... longlines set with and without a line setter were identical, including in the first few metres of the water ... several metres closer to the stern of vessels, thereby increasing slightly (Author(s):  G. Robertson ...

   Meeting Document : WG-FSA-07/13 : Auteur(s): G. Robertson (Australia), J. Williamson, M. McNeill (New Zealand), S. Candy (Australia) and N. Smith (New Zealand)

2. Analysis of krill catch data from continuous and conventional trawls by the Saga Sea and Atlantic Navigator

   Abstract:  In this paper we analyse data on the distribution of catches, the size of krill and ... bycatch of larval fish taken by the Saga Sea fishing with continuous trawls in 2006, and the Atlantic ... Navigator which fished in 2005 using both continuous trawling and conventional trawling. The sizes of krill ... are few data for comparison, the bycatches of larval/juvenile fish in the continuous trawl also appear ...

   Meeting Document : WG-FSA-06/57 : Auteur(s): D.J. Agnew, A. Payne, J. Hooper and J. Roe (United Kingdom)

3. Age estimation and maturity of the ridge-scaled macrourid (Macrourus whitsoni) from the Ross Sea

   Abstract:  Juveniles of the macrourid rattail Macrourus whitsoni were collected by the NIWA ... research vessel Tangaroa during the BioRoss survey of the Western Ross Sea and Balleny Islands, with the ... purpose of analyzing the otoliths to generate more accurate age estimates for this species. Intensive ... analysis of otoliths from small specimens greatly increased confidence in the interpretation of the zone ...

   Meeting Document : WG-FSA-05/20 : Auteur(s): P.M. Marriott, M.J. Manning and P.L. Horn (New Zealand)

4. Geographical differences in the condition, reproductive development, sex ratio, and length distribution of Antarctic toothfish (Dissostichus mawsoni) from the Ross Sea, Antarctica (CCAMLR Statistical Subarea 88.1)

   Abstract:  A number of morphological and reproductive measurements made seasonally on Antarctic ... seasons aboard the autoliner San Aotea II have been analysed. Results of this study indicate measurable ... differences in a number of indices from toothfish found on the Ross shelf proper, as distinct from those ... part of the Ross Sea showed that this component of the population had a unimodal length distribution at ...

   Meeting Document : WG-FSA-05/52 : Auteur(s): J.M. Fenaughty (New Zealand)

5. The diet of Antarctic fur seals, Arctocephalus gazella, at King George Island, during the summer–autumn period

   Abstract:  The diet of non breeding male Antarctic fur seals, Arctocephalus gazella, was ... , krill and fish were the most frequent prey, occurring in an average of 97% and 69% of samples (n=128 ... ), followed by Cephalopods (12%). Myctophids constituted almost 90% of the fish predated, being Electrona ... fish species associated with krill swarms. A seasonal change observed in the relative proportions of ...

   Meeting Document : WG-EMM-04/4 : Auteur(s): G.A. Daneri, A.R. Carlini, C.M. Hernandez and A. Harrington (Argentina)

6. Brief information on the results of the bottom trawl and trawl–acoustic surveys carried out by STM Atlantida in the South Georgia subarea (48.3) during January to March 2002

   Abstract:  The results of researches carried out in expeditions of S?? “?tlantida” in summer ... -autumn period of the southern hemisphere from 30 January to 14 March 2002 are presented. These researches ... included the bottom trawl survey on the shelf of South Georgia, Shag Rocks and Black Rocks (53?10-55?30 S ... Georgia shelf (53?10- 55?30 S, 34?00-39?40 W); series of oceanographic observations. Author(s):  V.N ...

   Meeting Document : WG-FSA-02/19 : Auteur(s): V.N. Shnar, V.A. Khvichia and A.P. Malyshko (Russia)

7. Antarctic fur seal population dynamics update and assessment of census error at SSSI No. 32, Livingston Island, South Shetlands, Antarctica (2000/2001)

   of Antarctic fur seals, Arctocephalus gazella, in the South Shetland Archipelago. Since all censuses ... up to date have been single counts and do not allow the calculation of confidence limits, a protocol ... was developed for assessing uncertainties in the estimates of the counts (inter and intra-observer ... -1,74%CV, while inter-observer error was within 3% of the overall mean. The relationship between census ...

   Meeting Document : WG-EMM-01/49 : Auteur(s): R. Hucke-Gaete (Chile)

8. Changes in the diet of the South Georgia shag Phalacrocorax georgianus at the South Orkney Islands along four consecutive years

   Abstract:  The diet of the South Georgia Shag Phalacrocorax georgianus at Laurie Island, South ... Orkney Islands, was studied by the analysis of 337 pellets (regurgitated casts) collected during the 1995 ... prey in all of the seasons and predominated in mass in 1995 and 1996, followed by Notothenia coriiceps ... also for the South Orkney Islands in previous studies. These differences could be due to the use of ...

   Meeting Document : WG-EMM-00/8 : Auteur(s): R. Casaux and A. Ramón (Argentina)

9. Some comments on the procedure of krill target strength assessment in echosurveys

   Abstract:  The impact of midwater trawl selectivity and catchability upon TS and TS 1 kg estimates ... . Application of the proposed method of mean weighted TS 1 kg estimation provides the biomass estimation ... : assessment of MSBS (MVBS) acoustic parameter distribution and krill length (weight) distribution in the study ... area. The latter requires to settle a complex of problems which allow to consider the trawl as a ...

   Meeting Document : WG-EMM-98/21 : Auteur(s): S.M. Kasatkina (Russia)

10. Depth distribution and spawning pattern of Dissostichus eleginoides over the winter period in Subarea 48.3

    Abstract:  Trends in mean length and maturity stage of toothfish were examined using observer data ... statistically significant pattern of changing mean length at depth with month was found in both 1997 and 1998 ... seasons, suggesting movement of animals both up and down slope at particular times of year. Months with a ... . Examination of maturity data suggests that in addition to a major spawning event in late July/August, there ...

    Meeting Document : WG-FSA-98/58 : Auteur(s): D.J. Agnew, K. Kerkieta, L. Heaps, C. Jones, J. Pearce and A. Watson (United Kingdom)

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