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1. Modelling Southern Ocean krill population dynamics: biological processes generating fluctuations in the South Georgia ecosystem

   fluctuations observed during some years. Low krill abundance was associated with reduced representation of the ... . The krill population model was combined with a size-based selection function and used to generate ... model solutions with the predator diet data indicates that the model can reproduce the observed pattern ... 3+ age group, whereas when krill were abundant the 3+ age class was the major age group present. The ...

   Meeting Document : WG-EMM-01/53 : Автор(ы): E. Murphy and K. Reid (United Kingdom)

2. Developments in the CCAMLR otolith program

   Abstract:  The Secretariat contacted 14 Members in January 2011 providing them with a table ... listing the number of otoliths collected on each trip by a vessel flagged to that Member and the observer ... responsible for collecting the otoliths on that trip. Members were asked to provide information on the storage ...

   Meeting Document : WG-FSA-11/07 : Автор(ы): Secretariat

3. e-cc-xxviii-a6.pdf

   ... three years, either in conjunction with WG-EMM or immediately prior to the Commission meeting in order ... compliance with conservation measures on a vessel-by-vessel basis for the previous five- years’ worth of ... years. DOCEP agreed that a compliance evaluation conducted on a multi-year basis would allow the ... -06/10). OBJECTIVES OF MEETING 3. In considering its terms of reference, DOCEP recalled that its application/pdf attached to:DOCEP

   Meeting Report : DOCEP

4. THE SELECTION OF TRIPS BASED ON DATA METRICS FOR THE ASSESSMENT OF ANTARCTIC TOOTHFISH IN THE ROSS SEA

   informative datasets were selected comprising trips with high (above median) rates of recovery of previously ... released tags, and/or where tags released on the trip were subsequently recaptured at a high rate. These ... trips were used to define a range for various data quality metrics considered to be informative with ... respect to tagging data. Other trips with data quality metric values within these ranges were added to the ...

   Meeting Document : WG-FSA-09/35 : Автор(ы): D.A.J. Middleton (New Zealand)

5. Factors that may influence the accuracy of abundance estimates from CCAMLR tag-recapture programs for Dissostichus spp. and best practice for addressing bias

   features in common with the simplest form of an abundance estimator, known as the Lincoln- Petersen ... with respect to M, R and C. Where these assumptions are not met, parameter estimates may be biased ... the true N by the estimate N̂ (i.e. N̂ N> or N̂ N< ), with potential consequences for any ... management advice based on these estimates. To assist with assessing the impact of bias in estimating ...

   Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 63–72 : Автор(ы): Welsford, D.C. and P.E. Ziegler

6. AGE AND GROWTH OF SPINY ICEFISH, CHAENODRACO WILSONI REGAN, 1914, OFF JOINVILLE-D'URVILLE ISLANDS (ANTARCTIC PENINSULA)

   consisted mainly of adult specimens between 1 and 3 years of age, with very few older fish. Author(s):  M ... . Age at sexual maturity was estimated to be about 2 years for females and 2.5 years for males. Compared ...

   Meeting Document : WG-FSA-08/33 : Автор(ы): M. La Mesa, A. De Felice (Italy), C.D. Jones (USA) and K.-H. Kock (Germany)

7. Toothfish and skate tagging methods

   been released and more than 2000 have been recaptured (as of 2013). 3 Data quality Do not ... sheet to record data • Accuracy is critical (tag code and length). • Check data with observer ... records per shift. – Tag release sheets checked with tag codes used. – Notify observer of all ... distribution of captured fish; • and accomplish this with HIGH SURVIVAL of tagged fish. These are ...

   Document : Site Section: Science

8. The Patagonian toothfish (Dissostichus eleginoides) fishery in the Kerguelen Islands (Indian Ocean sector of the Southern Ocean)

   eleginoides) have been fished in the Kerguelen Islands zone for 20 years, firstly with trawlers and more ... recently with longliners. This is the oldest fishery targeting D. eleginoides in the Indian Ocean sector of ... the Kerguelen Islands zone for 20 years, firstly with trawlers and more recently with longliners ... phase, when fishing effi- ciency would have increased (first 2–3 years), a phe- nomenon of partial ... ratio decreases with the years, which shows that the average size of the fish caught is smaller ... maturity stages during the year was studied to determine the spawning period. Mature animals (stages 3 to ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 1–25 : Автор(ы): Lord, C., G. Duhamel and P. Pruvost

9. An alternative method for estimating the level of illegal fishing using simulated scaling methods on detected effort

   is less than, or equal to, the precautionary assessment with some given level of confidence (for ... estimating the level of illegal fi shing Figure 3: Ten illegal fi shing cruises with different levels of ... precautionary assessment with some given level of confi dence (for example 80%). Résumé Le présent document ... modelling framework of this paper, particularly with regard to the behaviour of vessels when detected ... observation of illegal fi shing effort coupled with the pattern of fi shery patrols is the main input data ...

   Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 143–161 : Автор(ы): Ball, I

10. Food and feeding of two Channichthyids, Champsocephalus gunnari and Chaenocephalus aceratus, around Elephant Island and in the South Shetland Islands (Subarea 48.1) in 2001 and 2002

    cruise in March 2001 with RV ‘Yuzhmorgeologiya’ and ANTXIX/3 in January – February 2002 with RV ... ‘Polarstern’. C. gunnari fed almost exclusively on krill (Euphausia superba) in both years. C. aceratus fed on ...

    Meeting Document : WG-FSA-02/73 Rev. 1 : Автор(ы): H. Flores, K.-H. Kock, S. Wilhelms (Germany) and C.D. Jones (USA)

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