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1. Age–length composition of mackerel icefish (Champsocephalus gunnari, Perciformes, Notothenioidei, Channichthyidae) from different parts of the South Georgia shelf

   Y Y a C T K O B . I l p e ~ n o n a r a e ~ c ~ , Y T O Y a c T b 3 a n a n ~ o E rpynnrrpoerw pb16bl M c t r p n p y e T K c K a n a M UIar Ha BTOPOM-TpeTheM rOny XM'3H11 ... - spent (end of spawning). The shelf area was divided into five regions, each containing approximately ... effort usually decreased for a short period (1-2 years) after which it again intensified, yielding ... as high-intensity fishing (1980s). Trawl surveys carried out several years after the ban on fishing ... , Notothenioidei, Channichthyidae) from different parts of the South Georgia shelf Abstract / Description ... determine the age-length composition of mackerel icefish (Champsocephalus gunnari) from different parts of ... the South Georgia area. An analysis of the spatial distribution of C. gunnari size and age groups over ... the eastern, northern, western and southern parts of the shelf, and near Shag Rocks, revealed a ...

   Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 133–146 : Author(s): Frolkina, G.A

2. Fishery Report 2014: Dissostichus eleginoides Heard Island (Division 58.5.2)

   in which that season ended, e.g. 2014 represents the 2013/14 CCAMLR fishing season (from 1 December 2013 ... beyond the reach of seabirds as soon as possible after being put in the water. Between them ... for longline (Candy and Constable, 2008), tag-release mortality was 0.1 and the no-growth period after tagging ... the random recruitment from 2010 until the end of the 35-year projection period. Based on this sample ...

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3. Calibration of an acoustic echo-integration system in a deep tank, with system gain comparisons over standard sphere material, water temperature and time

   the signal digitally immediately following the receiver front end. Therefore, changes in gain are effected ... by 3 m in diameter. It was filled with ocean water pumped from the end of Scripp's pier. A pump and refrigeration ... . Therefore, if no data were collected exactly on axis, the nearest data to the axis were used after being ... the survey. The calibration should be repeated at least twice, before and after the survey. The results ... outlines the theory and procedures for calibrating an echo integration acoustic system with a standard ... sphere. It presents the results of an extensive calibration of a Simrad EK500 scientific echosounder with ... length (0.1, 0.3 and 1.0 ms), target depth (0.8 to 7.5 m), and time (149 days). The total range in TS ... gain, including the effects of temperature, standard sphere and time, is 2.9 dB. Gain values calibrated ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 127–144 : Author(s): Demer, D.A. and R.P. Hewitt

4. Sensitivity investigation of the SDWBA Antarctic krill target strength model to fatness, material contrast and orientation

   approximation model is recognised as state­of­the­art in predicting acoustic target strength (TS) from ... is re cognised as state­of­the­art in predicting TS from fluid­like zooplankton (Stanton and Chu, 2000 ... ) length­dependent relationships: g = 5.439 × 10–4 L + 1.002 and h = 4.981 × 10–4 L + 1.009. At the end ... Paper Title:  Sensitivity investigation of the SDWBA Antarctic krill target strength model to ... fatness, material contrast and orientation Abstract / Description:  The distorted-wave Born approximation ... model is recognised as state-of-the-art in predicting acoustic target strength (TS) from fluid-like ... marine organisms. A stochastic version, the so-called SDWBA model, is endorsed by CCAMLR to predict the ...

   Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 97–122 : Author(s): Calise, L. and G. Skaret

5. Fishery Report 2013: Dissostichus eleginoides South Georgia (Subarea 48.3)

   this report the CCAMLR fishing season is represented by the year in which that season ended, e.g. 2012 ... after a soak time of 24–48 hours. Bait is usually squid or sardines. The fishery was conditionally ... around the eastern end of Shag Rocks. The total catch of toothfish was low when compared to the 2011 ... C: 1 680 tonnes Season: longline 16 April to 31 August In 2014, extensions start on 6 April and end ...

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6. e-cc-xxix.pdf

   ... in relation to this matter. The Commission endorsed SCAF’s recommendations that: (i) an open-ended ... , will continue to be transferred to the General Fund at the end of the 2010 financial year (Annex 5, paragraph ... that the current requirement for vessels to begin reporting catches at 10-day intervals once the catch reaches 80 ... , will continue to be transferred to the General Fund at the end of the 2010 financial year (Annex 5 ... begin reporting catches at 10-day intervals once the catch reaches 80% of the trigger level for Area 48 ... CCAMLR-XXIX COMMISSION FOR THE CONSERVATION OF ANTARCTIC MARINE LIVING RESOURCES ... REPORT OF THE TWENTY-NINTH MEETING OF THE COMMISSION HOBART, AUSTRALIA 25 OCTOBER – 5 NOVEMBER application/pdf attached to:CCAMLR-XXIX

   Meeting Report : CCAMLR-XXIX

7. Krill Fishery Report 2016

   that season ended, e.g. 2015 represents the 2014/15 CCAMLR fishing season (from 1 December 2014 to 30 ... (where reports of catch and effort in one month must be provided before the end of the following month ... of the end of that five-day period). For an area where the five-day reporting requirement has been triggered ... to be submitted by the end of the month following data collection). In order to accommodate data from ...

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8. A comparison between otoliths and scales for use in estimating the age of Dissostichus eleginoides from South Georgia

   for several months after hatching, or annuli in older fish can be obsc~lred by compression of the circuli ... . Annual mortality was considered high after maturity even though active growth continued. By contrast ... after growth slowed or ceased. Yearly annuli on scales were difficult to identify after age ... , so that the outer annulus was counted as one year if the fish was taken after 1 July but not before ... Paper Title:  A comparison between otoliths and scales for use in estimating the age of ... understanding the population dynamics and productivity of a fish stock. The use of scales to estimate age can ... whose age has been estimated using both scales and otoliths. We estimated the age of D. eleginoides ... ; for otoliths, we used transverse sections prepared by baking and grinding the posterior and anterior ...

   Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 75–92 : Author(s): Ashford, J.R., S. Wischniowski, C. Jones, S. Bobko and I. Everson

9. Target strengths of krill at 136 and 20 kHz

   the catch and placed in a container of sea-water. After sorting, groups of various numbers of live ... in the cage using a funnel. The length of krill in the cage were then measured at the end of each test ... to 15 m. TS values for the empty cage and the cage containing krill were recorded 40 minutes after ... the cage after the test in another container were actively swimming. 3.1.2 Target strength (TS ... . Ensonification of encaged live krill. For aggregations with mean lengths from 45 to 50 mm the mean single-krill ... the mean single-krill target strengths range from-71 to-77 dB at 20 kHz. Trawl hydroacoustic method ... . For aggregations with mean lengths from 47 to 50 mm the mean target strengths ranged from-71 to-75 dB ... . At the same frequency for aggregations with mean lengths in the range 41 to 47 mm the mean single ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 141–157 : Author(s): Kasatkina, S.M.

10. e-sc-xxxi-a05.pdf

    ... in Subarea 48.3. However, estimates of the effect of introducing a reward system after a tagging program has ... hauls after the first 10 research hauls, the Working Group noted that in all cases, except for one ... to the resubmission of the research plans to WG-FSA after preliminary evaluation at WG-SAM. 3.23 The Working Group ... the effect of introducing a reward system after a tagging program has been established are likely to ... research haul for every three commercial hauls after the first 10 research hauls, the Working Group noted ... coordinate research prior to the resubmission of the research plans to WG-FSA after preliminary evaluation ... the Working Group on Statistics, Assessments and Modelling (Santa Cruz de Tenerife, Spain, 25 to application/pdf attached to:WG-SAM-12

    Meeting Report : WG-SAM-12

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