Résultats de la recherche

1. Fishes incidentally caught by Japanese Antarctic krill commercial fishery to the north of the South Shetland Islands during the 1994/95 austral summer

   , were found in 20 trawl catches. Juvenile or adult notothenioid fishes were never found in a random ... of by-catch fishes was higher in krill hauls with the low catch rates. Author(s):  Iwami, T. Title ...

   Meeting Document : WG-EMM-95/56 : Auteur(s): Iwami, T.

2. The diet of the blue-eyed shag Phalacrocorax atriceps during summer at Nelson Island, Antarctica: temporal variations and consumption rates

   coriiceps, predominated in frequency (56%) and in mass (55%), whereas Harpagifer antarcticus was the most ... the adults averaged 1.7 trips day-1 during incubation, 2.0 trips day-1 in early rearing and 4.6 trips ...

   Meeting Document : WG-EMM-95/82 : Auteur(s): Silva, P., Barrera-Oro, E., Casaux, R., Favero, M., Coria, N.

3. Geographic aspects of Euphausia superba resources exploitation

   . Concentration of E.superba of the same order of biomass volume as in the Scotia Sea were observed at several ... E.superba show increased spatial irregularity. Development of fisheries activity in these new for catching ... as related changeability of aggregation location in the open-ocean environment. Exploitation of ...

   Meeting Document : WG-KRILL-93/04 : Auteur(s): R.R. Makarov (Russia)

4. Further computations of the consequences of setting the annual krill catch limit to a fixed fraction of the estimate of krill biomass from a survey

   considered. Fishing in summer (near-coincident with the period of krill growth), or throughout the year ... , allows a greater catch (for the same risk of depletion) than in the case of fishing in winter. Author(s ...

   Meeting Document : WG-KRILL-92/04 : Auteur(s): D.S. Butterworth, G.R. Gluckman and S. Chalis (South Africa)

5. Geographic aspects of Euphausia superba resources exploitation

   ° Concentration of E.superba of the same order of biomass volume as in the Scotia Sea were observed at several ... E.superba show increased spatial irregularity. Development of fisheries activity in these new for catching ... as related changeability of aggregation location in the open-ocean environment. Exploitation of ...

   Meeting Document : WG-CEMP-92/31 : Auteur(s): R.R. Makarov (Russian Federation)

6. Choice of a procedure for deciding closure of CCAMLR fisheries: a simulation model

   Secretariat of CCAMLR, as described in Conservation Measures, have been difficult to implement because of the ... variation in catch rates shown by the fisheries. Non-fluctuating random and fluctuating random catch ... under a variety of circumstances. The Model described in the existing Conservation Measures is shown to ...

   Meeting Document : CCAMLR-X/BG/09 : Auteur(s): Secretariat

7. AMLR Hydroacoustic Survey System Description of Methods, A Case Study

   Abstract:  The AMLR hydroacoustic system used for surveys in the vicinity of Elephant Island and ... block estimates and the total biomass in the surveyed area. The process depends on: 1) a calibrated ... ensures data integrity and repeatability of analytic results. The variability inherent in the distribution ...

   Meeting Document : WG-KRILL-89/10 : Auteur(s): M.C. Macaulay (USA)

8. Analysis of observer coverage for Japanese krill fishing vessels

   1995 to 2008. Based on the multistage sampling theory, we derived the equation of variance in four ... stage cluster sampling units (i.e., vessel, year, subarea, and haul), and examined changes in the ... coefficients of variation (CV) caused by the shifts in coverage at different sampling stages. Vessel coverage ...

   Meeting Document : WG-SAM-10/17 : Auteur(s): T. Okuda, M. Kiyota and H. Okamura (Japan)

9. Assessment of the analysis of anomalous CPUE data from data-poor exploratory fisheries

   during the Workshop for the Analysis of the Anomalous High CPUE by Korean Vessels in the CCAMLR Area ... high CPUE for Dissostichus spp. revealed by several vessels in the Subareas 58.4.1, 58.4.2 and 48.6. A ... conclusion that a discussion on anomalous high CPUE in the specified areas using available data and ...

   Meeting Document : WG-SAM-13/16 : Auteur(s): V.A. Tatarnikov, A.F. Petrov and I.I. Gordeev (Russia)

10. Development of an algorithm designed to assess observer data quality and performance

    observers in their logbooks. A first version of the algorithm was tested on four randomly selected longline ... fishery logbooks. In its current version the algorithm is able to detect and report invalid data formats ... worksheets, which displaces data and results in the importation of the wrong data by the algorithm and ...

    Meeting Document : WG-SAM-13/40 : Auteur(s): Secretariat

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