Résultats de la recherche

1. Selectivity of standard Polish commercial trawl codends on Antarctic fishing grounds

   Abstract / Description:  Selectivity studies were carried out for two types of steelon codends used in ... process- especially in the latter case- is not satisfactory. Scotia Sea icefish, Chaenodraco wilsoni, and ... the trawling among all the species studied. Conclusions and observations were in some cases based on a ... in the case of 80 mm codend. Selection effectiveness increased from 20% for 80 mm codend to almost ... phase) No. of fish 6 814 20 701 3 217 7 053 3 090 measured in codend No. of fish 2 198 2 826 420 8 ... I I / B / / /: I I I I I ./e r-=- 20 30 Figure 5: Selectivity ogive for ... ..-_, __ ...,.--_,.--_...,.--__ 20 30 1.,0 50 [CM] I=\S+\ LENCHl Selection of bumphead notothenia on ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 107-142 : Auteur(s): Zaucha, J.

2. Fishery Report 2017: Dissostichus eleginoides Crozet Island French EEZ (Subarea 58.6)

   year in which that season ended, e.g. 2015 represents the 2014/15 CCAMLR fishing season (from 1 ... this method has been used in the fishery since then. 3. The fishery is open year-round, but most ... detected in Subarea 58.6 in 1996 and peaked the following year at an estimated 11 760 tonnes (Table 1 ... ) and the number of fish measured (n) in each year are provided. 4 Tagging 14. Within the ...

   Document : Site Section: Publications

3. Effect of orientation on broadband acoustic scattering of Antarctic krill Euphausia superba: implications for inverting zooplankton spectral acoustic signatures for angle of orientation

   and video footage from several Antarctic krill were carried out to determine the effect of animal ... pattern of changes in echo spectra with orientation for the experimentally measured acoustic returns was ... ) model. Information contained in the broadband echo spectra of the krill was exploited to. invert the ... Classification (CMVC) approach, using generic and animal-specific theoretical and empirical model spaces. The ...

   Meeting Document : WG-EMM-99/41 : Auteur(s): L.V. Martin Traykovski (USA), R.L. O’Driscoll (New Zealand) and D.E. McGehee (USA)

4. Effects of orientation on acoustic scattering from Antarctic krill at 120 kHz

   ) were made at a frequency of 120 kHz in a chilled insulated tank at the Long Marine Laboratory in Santa ... Cruz, CA. Individual animals were suspended in front of the transducers, were only loosely constrained ... collected per animal. Orientation data were recorded on video. The acoustic data were analyzed and target ... animal orientation. Use of these scattering patterns with orientation data from shipboard studies of E ...

   Meeting Document : WG-EMM-99/42 : Auteur(s): D.E. McGehee (USA), R.L. O’Driscoll (New Zealand) and L.V. Martin Traykovski (USA)

5. WG-FSA-13

   -FSA-13/20 Proposal to extend trial of daytime setting of longlines between 15 and 30 April in the ... Kingdom) WG-FSA-13/30 Preliminary assessment of Patagonian toothfish in Subarea 48.3 R. Scott (United ... models for Patagonian toothfish in Division 58.4.4, SRU C on Ob and Lena Banks for the years 1989/90 to ... (Dissostichus mawsoni) in the Ross Sea for the years 1997–98 to 2010–13 S. Mormede, A. Dunn and S.M. Hanchet ...

   Meeting

6. Effects of different harvesting strategies on the mackerel icefish Champsocephalus gunnari around South Georgia

   the mackerel icefish (Champsocephalus gunnari) have been simulated for a period of 30 years. These ... interval of three years with no fishing in between; and changes in net selectivity resulting in a shift in ... , should not occur earlier than four years after a good recruitment. A forward shift in partial recruitment ... fishing proved to be the least preferable harvesting alternative. In the absence of regular recruit ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 77–100 : Auteur(s): Köster, F.W. and K.-H. Kock

7. Status of krill target strength

   cause of bias in single-animal measurements, namely thresholding. Theoretical estimates for the target ... dependence of target strength on both animal size and transmit frequency, notwithstanding admitted ... shortcomings. Some recent single-animal measurements of target strength for live euphausiids and euphausiid ...

   Meeting Document : WG-KRILL-92/11 : Auteur(s): K.G. Foote (Norway), D. Chu and T.K. Stanton (USA)

8. Fitting Euphausia superba into Southern Ocean food-web models: a review of data sources and their limitations

   include krill in food-web models and to guide modellers to key sources of data. It describes the strengths ... fishery (sustained sampling in one place and wide area and time coverage) and via predators (long time ... . Temporally, the intense (order of magnitude) interannual variability in krill population size within the ... . Growth in spring, summer and autumn is now fairly well quantified, but mortality remains an enigma. We ... ) method has been in use for 20 years but there have been various attempts to use other analytical ... Krill in ice-covered habitats year round: small habitat volume but often very high krill ... occurred year- round throughout Antarctica, and regularly with an estimated ~20% of the stock deeper than ... and the seabed. Schmidt et al. (2011) included this habitat in the abovementioned 20% calculation ...

   Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 219–245 : Auteur(s): A. Atkinson, S. Nicol, S. Kawaguchi, E. Pakhomov, L. Quetin, R. Ross, S. Hill, C. Reiss, V. Siegel, G. Tarling (submitted to the 2008 Joint CCAMLR-IWC Workshop)

9. Fishery Report: Dissostichus eleginoides and Dissostichus mawsoni (TOT) South Sandwich Islands (Subarea 48.4)

   Throughout this report the CCAMLR fishing season is represented by the year in which that season ended, e.g ... Subarea 48.4 North and 30 tonnes for Dissostichus spp. in Subarea 48.4 South f 48 tonnes for D ... number of hauls (N) and the number of fish measured (n) in each year are given at the top of each ... class into the fishery (70–80 cm length class). This year class was also observed in the length ...

   Document : Site Section: Publications

10. Transhipment implementation report

    notification processing and publication in 2019/20. Author(s):  CCAMLR Secretariat Title:  Transhipment ... Convention Area in accordance with Conservation Measure 10-09. The Secretariat maintains a list of all ... transhipment notifications on the password protected part of the website in accordance with CM 10-09 paragraph ... 5. This paper summarises the transhipment notifications received between 1 August 2018, and 31 July ...

    Meeting Document : CCAMLR-38/BG/15 : Auteur(s): CCAMLR Secretariat

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