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1. Investigation of bias in the mark–recapture estimate of toothfish population size at South Georgia

   allows simulation of releases by box over multiple years. The model performed as expected with test ... was concentrated away from tag concentrations, or overly concentrated in them, the Petersen estimator ... 10 20 30 40 50 60 70 80 90 0 50000 100000 150000 200000 250000 est. population (n) pr oj ... 40 20 0 90 80 70 60 50 40 30 20 10 0 0 50000 100000 150000 200000 250000 ... 250000 est. population (n) fis hi ng e ff or t (1 00 0 ho ok s) 0 10 20 30 40 50 60 70 ... ) fis hi ng e ff or t (1 00 0 ho ok s) 0 20 40 60 80 100 120 0 50000 100000 150000 ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 47–63 : Autor(es): Agnew, D.J., G.P. Kirkwood, J. Pearce and J. Clark

2. Consideration of major issues in ecosystem monitoring and management

   10000 15000 0 10 20 30 40 50 60 70 80 90 100 Year Po pu la tio n si ze Recruitment fails twice ... all the requirements of Article II will be met. This is for two reasons. Firstly, errors in ... 40 50 60 70 80 90 100 Year Po pu la tio n si ze Recruitment fails twice at random each decade ... recruitment is randomly distributed between 1 000 and 2 000. From year 20 onwards for two randomly selected ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 213–232 : Autor(es): Everson, I

3. Comparative feeding ecology of Patagonian toothfish (Dissostichus eleginoides) in the southwestern Atlantic

   continental shelf/slope between 46°-55°S and 60°-64°W, and around South Georgia between 53°-55°30' and 3 ... eleginoides) was investigated in two offshore regions in the southwestern Atlantic: on the Argentinian ... °-45°W. The South Georgia area was divided into two zones: the shelf zone and deep-water zone. On the ... Argentinian continental shelf/slope, the length of D. eleginoides ranged from 30 to 95 cm total length (TL ... main line of 20 000 m, with branch lines each with 90 hooks (model 'Ancora', 30 mm gap) spaced at 1 m ... . Its geographic distribution ranges from 30"s in the Pacific, to the north of Chile, to Cape Horn ... Peninsula. Two biologically distinct populations of this species are recognised, o n e i n t he s o u t ... conducted on the Argentinian continental shelf/slope, between 37"20' and 55"s. The highest concentration ...

   Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 105–124 : Autor(es): García de la Rosa, S.B., F. Sánchez and D. Figueroa

4. Interactions of Patagonian toothfish fisheries with killer and sperm whales in the Crozet Islands Exclusive Economic Zone: an assessment of depredation levels and insights on possible mitigation strategies

   , killer whales alone, and the two species co-occurring were observed on 32.6%, 18.6% and 23.4 ... Islands 0 10 20 30 40 50 60 70 80 90 100 2003/04 2004/05 2005/06 2006/07 2007/08 Fishing ... : Mean interaction rates of killer and sperm whales with longlines between 2003 and 2008. 0 10 20 30 ... 5 10 15 20 25 30 2003/04 2004/05 2005/06 2006/07 2007/08 Fishing season D ep re da tio n ... the detection range to be 30 n miles, they will require only about two hours to reach a ves- sel that ...

   Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 179–195 : Autor(es): Tixier, P., N. Gasco, G. Duhamel, M. Viviant, M. Authier and C. Guinet

5. Status of the coastal stocks of Dissostichus spp. in East Antarctica (Divisions 58.4.1 and 58.4.2)

   there are two stocks in the area, one in Division 58.4.1 and one in Division 58.4.2, with the division ... operating off the coast of East Antarctica (30°E–150°E; FAO/CCAMLR Divisions 58.4.1 and 58.4.2) since 2003 ... between them being at about 90°E. The western stock may be centred around Prydz Bay, and appears to be of ... with the Ross Sea, where an analytical assessment has been possible for several years, and through ... 58.4.2. Fishing years extend from 1 December of the previous year to 30 November of the named year ... . Biological data suggest that there are two stocks in the area, one in Division 58.4.1 and one in Division ... ) showed the two methods produced area size estimates that dif- fer by approximately 20% overall (with ... that although two tags are assumed to have been recovered from SSRU 5841Ce, in reality one was ...

   Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 71–100 : Autor(es): Agnew, D.J., C. Edwards, R. Hillary, R. Mitchell and L.J. López Abellán

6. Natural mortality rate in the mackerel icefish (Champsocephalus gunnari) around South Georgia

   also possibly due to age-dependent mortality and commercial fishing. File:  14everson.pdf ... - E a, f F 0 8 6 -5 -10 -1 5 -20 3 4 5 6 7 8 9 Age (years) Olsen Frolkina Kock ... relatively easily from data on age composition, but it is generally difficult to divide this into its two ... of population age density; they have been assigned ages based on the information on 'aged' fish in ... year class: To test whether there is a significant difference between the two survivorship ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 245–257 : Autor(es): Everson, I

7. Species identification and age estimation for the ridge-scaled macrourid (Macrourus whitsoni) from the Ross Sea

   and Atmospheric Research (NIWA). Two species were found, Macrourus whitsoni and M. holotrachys. A ... previously aged sample from 1999 was confirmed as being solely M. whitsoni, based on otolith comparisons and ... the geographic source of the aged sample. Counts of translucent zones were made from baked and cross ... , living to at least 50 years. Females grow at a faster rate, and reach a larger size, than males, but both ... 40 50 60 70 80 90 100 0 5 10 15 20 25 30 35 40 45 50 55 60 Age (years) To ta l l en gt h ... % 80% 90% 100% 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 ... maturing. 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 12 13 14 15 16 17 18 19 20 21 22 23 24 25 ... linear regressions. Males y = 0.3287x + 0.511 R2 = 0.865 n = 552 0 10 20 30 40 0 20 40 60 80 100 ...

   Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 37–51 : Autor(es): Marriott, P., P.L. Horn and P. McMillan

8. Diet study of Antarctic toothfish caught in the east Antarctic based on stomach content, fatty acid and stable isotope analyses

   −22.0  0.2 16.4  0.7 6 Park et al. 42 60° 61° 62° 63° 64° 65° 66° S 90 ... ° 95°E Sampling site 5841C 0 1 2 3 4 5 6 0 10 20 30 (32) Cu m ul at iv e n um be r o f ... : further evidence and the relation between δ15N and animal age. Geochim. Cosmochim. Acta, 48 (5): 1135 ... a lesser extent squid. FA profiles in muscle tissues of Antarctic toothfish were Park et al. 30 ...

   Science Journal Paper : CCAMLR Science, Volume 22 (CCAMLR Science, Volume 22) : 29–44 : Autor(es): Park, H.J. , I. Yeon, E. Han, Y.J. Lee, S.M. Hanchet, G.W. Baeck, Y. Kwon, S.G. Choi, D.W. Lee and C.K. Kang*

9. [node:field-journal-volume]:37-51

   40 50 60 70 80 90 100 0 5 10 15 20 25 30 35 40 45 50 55 60 Age (years) To ta l l en gt h ... % 80% 90% 100% 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 ... maturing. 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 12 13 14 15 16 17 18 19 20 21 22 23 24 25 ... linear regressions. Males y = 0.3287x + 0.511 R2 = 0.865 n = 552 0 10 20 30 40 0 20 40 60 80 100 ...

   Science Journal Paper : 37–51

10. Krill distribution in the western Atlantic sector of the Southern Ocean during 1983/84, 1984/85 and 1987/88 based on the results of Soviet mesoscale surveys conducted using an Isaacs-Kidd midwater trawl

    characterised by a change in biomass of more than two orders of magnitude in different seasons, was observed in ... needed to obtain such material. Previous surveys carried out annually over nearly 20 years covered only ... " 50" 45" 40" 35" 30" Figure 4: Krill diskibution (g/ l 000 m3) in strata 0 to 100 m, 20 January to ... currents (relative to the 1 000 dbar), 20 January to 9 March 1988. 60" 55" 50" 45" 40" 35" 30" Figure 7 ... characterised by a change in biomass of more than two orders of magnitude in different seasons, was observed in ...

    Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 59–70 : Autor(es): Sushin, V.A. and K.E. Shulgovsky

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