Search results

1. An assessment of the mackerel icefish (Champsocephalus gunnari) off Heard Island

   catch limit is calculated using the results of the trawl survey carried out during August 1997 ... previous surveys and results from a new survey carried out in August 1997. A precautionary catch limit ... AND SIZE AT FIRST SPAWNING C. gunnavi on the Heard Plateau and Gunnari Ridge spawn in August/September ... in the Gunnari Ridge/Heard Plateau area in September 1993 and August 1997. Fish at stage 2 (developing ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 79–101 : Author(s): de la Mare, W.K., R. Williams and A.J. Constable

2. An assessment of toothfish in Subarea 48.3 using CASAL

   , lasted from 1 May to 31 August. The remainder of the year (1 September to 30 November) constituted ... . Assessment results and sensitivity tests In this section, the results obtained for a number of different ... distributions for the baseline and selected alternative assessments in the section ‘MCMC estimation of stock ... status’, all results pre- sented in the sections ‘Baseline assessment point estimates’ and ‘Sensitivity ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 65–95 : Author(s): Hillary, R.M., G.P. Kirkwood and D.J. Agnew

3. Distribution of fish larvae at South Georgia: horizontal, vertical, and temporal distribution and early life history relevant to monitoring year-class strength and recruitment

   ". 1. WINTER SOUTH GEORGIA ZONE SURVEY, 28 JULy TO 21 AUGUST, 1983 Methods The study was a grid survey ... of the population. It would also be pertinent to measure the wind strength and direction in the bay during August ... Champsocephalus gunnari hatch at about 12.5 mm total length in August to October. An average growth rate of 0.35 ... S 1 ,--------,---------,1---------1,--------,1---------1 1 0 2 3 4 5, nm (b) vertical section. Figure 26 CUmberland East Bay, station sampled along 1-3. Depth ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 105-141 : Author(s): North, A.W.

4. Beyond MSY: a consideration of definitions of management objectives

   populations behave, and that not enough account is taken of interactions between species and variability ... The previous section suggests that if a stock could suffer from both recruitment and growth overfishing ... . Knowledge of the interactions between krill and other species is still far from enabling a target ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 299-322 : Author(s): Gulland, J.A.

5. The role of fish as predators of krill (Euphausia superba) and other pelagic resources in the Southern Ocean (submitted to the 2008 Joint CCAMLR-IWC Workshop)

   , 1992; Guinet et al., 1994; Wilson et al., 2001; Boyd, 2002; Kock and Everson, 2003; Weimerskirch et ... (Butterworth and Thomson, 1995; Murphy, 1995; Mangel and Switzer, 1998; Thomson et al., 2000; Constable, 2001 ... trawl surveys over the past 25 years (Kock, 1986; Jones et al., 1998, 2000, 2001, 2003; Jones and Kock ...

   Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 115–169 : Author(s): Kock, K.-H., E. Barrera-Oro, M. Belchier, M.A. Collins, G. Duhamel, S. Hanchet, L. Pshenichnov, D. Welsford and R. Williams

6. Acoustic estimates of krill density at South Georgia, 1981 to 1998

   m isobath, and sections of cruise track from which acoustic data for krill density estimation were taken ... . The causes of this variability are likely to be complex and involve interactions of numerous physical ... and P. Rothery. 1988. Reproductive performance G.C. Cripps. 1999. Krill-copepod interactions of seabirds ... estimates of krill density at South Georgia, 1981 to 1998 Everson, I. 1984. Marine interactions. In: Laws ...

   Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 47–57 : Author(s): Brierley, A.S., J.L. Watkins, C. Goss, M.T. Wilkinson and I. Everson

7. Options for allocating the precautionary catch limit of krill among small-scale management units in the Scotia Sea

   c Committee and the Commission (SC-CAMLR, 2001; CCAMLR, 2001), and a workshop was convened under the aus ... ., 1999; Boyd and Murray, 2001). While it may be preferable to index krill biomass and/or hydrographic ... 5090 –4.651 25.7 2.272 –4.422 2000/01 34.7 5263 –4.701 6.6 2.320 –4.176 2001/02 46.6 5240 –4.628 3.3 ... Georgia (Boyd and Murray, 2001; Boyd, 2002b). In contrast, the predator and krill data for the South ...

   Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 81–97 : Author(s): Hewitt, R.P., G. Watters, P.N. Trathan, J.P. Croxall, M.E. Goebel, D. Ramm, K. Reid, W.Z. Trivelpiece and J.L. Watkins

8. Estimation of natural mortality for the Patagonian toothfish at Heard and McDonald Islands using catch-at-age and aged mark-recapture data from the main trawl ground

   to August 2009 for Grounds B and C were 8 284 and 3 416 respectively, with trawl responsible for 2 158 ... the estimate of σC reached its upper bound of 2.0. The estimated value of F for 2001 and 2008 reached its ... that most of the catch is predicted to be taken in 2001, indicate that predic- tions from the BODE model ... that are released from trawl gear due to their relatively brief interaction with the fishing gear, as opposed ...

   Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 29–45 : Author(s): Candy, S.G., D.C. Welsford, T. Lamb, J.J. Verdouw and J.J. Hutchins

9. Significant intra-annual variability in krill distribution and abundance at South Georgia revealed by multiple acoustic surveys during 2000/01

   ), and in March 2001 (late-season). The surveys were the first in a newly planned five-year series of observations ... (mid-season), and in March 2001 (late-season). The surveys were the first in a newly planned five-year ... January 2000/01 (mid-season), and in March 2001 (late-season). The surveys were the fi rst in a newly ... /début janvier 2001 (mi-saison) et en mars 2001 (vers la fi n de la saison). Ces campagnes étaient les ... 2001 г. (конец сезона). Это были первые съемки в недавно намеченной 5-летней серии наблюдений, которая ... nes de diciembre y comienzos de enero de 2000/01 (mediados de la temporada) y en marzo de 2001 (a fi ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 71–82 : Author(s): Brierley, A.S., C. Goss, S.A. Grant, J.L. Watkins, K. Reid, M. Belchier, I. Everson, M.J. Jessop, V. Afanasyev and J. Robst

10. Simulation of recovery rates of fish stocks in the South Georgia and Kerguelen Islands areas

    parameters used in this analysis are displayed in the data section. The output of the model includes stock ... 1997 76.771 10.381 19'7'8 81~222 11.151 1999 80.340 11 .248 2000 BO.1E:l 11.625 2001 74.125 10.669 ... ,~, '-' 2001 73.395 5.579 2002 74.454 5.666 2003 71.571 5.411 2004 75.960 5.636 AVE 69.170 5.130 Stock ... 1998 3. 06 23 93 · 06 1999 2. 99 ',7 .. ..::, . ...:. 92 06 2000 2. 94 1 02 06 2001 2.99 ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 229-298 : Author(s): Hennemuth, R.C., K.D. Bisack and G. Duhamel

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