Résultats de la recherche

1. Changes in the fish biomass around Elephant Island (Subarea 48.1) from 1976 to 1996

   the original sites which balanced this effect to some extent. Furthermore, five to eight new ... class; fish from this year class were 20 to 25 cm long in January/February 1976 and 30 to 37 cm in ... January-February 1978 (Figure 2). This year class formed the backbone of the fishery in the subsequent ... in 1 9 7 9 / 8 0 when a catch of 18 760 tonnes was reported (Table 1 ) . No concentrations of ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 165–189 : Auteur(s): Kock, K.-H

2. Otolith microstructure of juvenile mackerel icefish (Champsocephalus gunnari) (Channichthyidae) in the South Georgia area

   a trawl survey of juveniles in February–March 2002 on the South Georgia shelf. Juvenile fish ... survey of juveniles in February–March 2002 on the South Georgia shelf. Juvenile fi sh comprised two year ... larval icefi sh were collected from August to October and in February. Age reading of C. gunnari ... conducted from mid-February to early March 2002 on the South Georgia shelf. Few specimens were collected ... sh (0+) in February–March 2000, yearlings (1) from 1 July 2000, 1-year-old (1+) in February 2001, 2 ...

   Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 173–181 : Auteur(s): Shcherbich, L.V

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

   , where it occurs, post-release depredation rates are a priority for new assessments that use tag ... new mortality equa- tion. CCAMLR Science, 18: 1–27. Candy, S.G. and A.J. Constable. 2008. An integrat ... priority for new assessments that use tag-recapture data. Due to the complexity of toothfish movements ... Ross Sea. Document WG-SAM-11/18. CCAMLR, Hobart, Australia: 14 pp. Fay, G. and G.N. Tuck (Eds). 2011 ... attack. A study by Agnew et al. (2006a) found that injuries, as well as larger size and capture from ...

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

4. A composite recruitment index to describe interannual changes in the population structure of Antarctic krill at South Georgia

   JR28 RMT FNET MNET VKSS LHPR RMT25 10 1 0 6 0 0 20 1 0 0 0 0 1 0 5 0 0 0 0 9 1 0 0 5 18 2 1 0 ... by land- based predators foraging in the vicinity of Bird Island (at the western end of South ... temporal variability observed in the Bird Island region is a result of the spatial variability of the ... (down to 18 mm) are well represented in several years; similarly, large krill (mean size -54 mm ...

   Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 71–84 : Auteur(s): Watkins, J.L

5. A first attempt at an assessment of the Patagonian toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands EEZ

   roughy (Hoplostethus atlanticus) on the Chatham Rise, New Zealand. Can. J. Fish. Aquat. Sci., 49: 922 ... Living Resources Act (Act 18 of 1998). Given the prevailing uncertainty as to the fi nal policy on ... ) EEZ (58.7 and 50% 58.6) 1996/97 1997 11 900 18 900 9 450 21 350 1997/98 1998 925 1 765 883 ... 4 00 2; 2 8 38 2) 18 7 58 -4 .0 15 52 9 0. 39 2 0. 01 0 0. 11 6 0. 16 2 0. 15 ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 11–32 : Auteur(s): Brandão, A., D.S. Butterworth, B.P. Watkins and D.G.M. Miller

6. Characteristics of krill swarms from Prydz Bay

   from Davis Station on 18 December 1990 along 74°30'E longitude (Figure 1). Conditions were calm and ... . crystallorophias. Surveys carried out in February showed that most of the euphausiids over the shelf (south of 67 ... = observed MVBS w = weight (kg) 3. RESULTS The data sequence started at 1558 hours on 18 December and ... about 18 m (1 ping) after 1808 hours compared with about 3.5 m before this time. Figures 2a and b show ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 177–189 : Auteur(s): Agnew, D.J. and I.R. Higginbottom

7. Status of krill target strength

   measurements of Sv, with 1 ms pulse duration, and estimates of p determined by catching. A total of 18 TS ... depth in the harbour of Stromness on South Georgia in January and February 1988. Since the density was ... -69 dB. On the Maud Banks, in February 1980, krill with mean lengths from 36.0 to 50.0 mm were ... Georgia in February 1990, at 120 kHz. Concurrent in situ photographic observations of the respective ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 101–126 : Auteur(s): Foote, K.G., D. Chu and T.K. Stanton

8. A first step towards modelling the krill–predator dynamics of the Antarctic ecosystem

   Ocean in 1957 over the December–February period, 266 blue, 1 429 fin, 527 humpback but only 81 minke ... (Marine Resource Assessment and Management Group) Department of Mathematics and Applied Mathematics ... (Marine Resource Assessment and Management Group) Department of Mathematics and Applied Mathematics ... perturbation of a marine ecosys- tem anywhere in the world has taken place (Mori and Butterworth, 2004 ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 217–277 : Auteur(s): Mori, M. and D.S. Butterworth

9. Potential nursery areas for fish in the Prydz Bay region

   survey with a fine-meshed midwater trawl in Prydz Bay in January/February 1991 indicated the potential ... in January/February 1991 indicated the potential for the shelf area of the Bay to be a nursery ... for the Conservation of Antarctic Marine Living Resources (SC-CAMLR, 1990) agreed that nursery ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 369–380 : Auteur(s): Williams, R.

10. 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

    requested for three different possible fishing seasons: (a) three months: December to February ( t = 1 ... ,,,, = 0.2 are somewhat higher for model 2; for the latter, summer fishing (December to February) leads to ... survey covers only a portion of the stock in question. Results are shown for the December-February and ... Harvesting Strategy 1 M = 0.6 OR = 0.4 2(a) December-February 2(b) A ril Se tember 2(c) &o, &ar 2(a ...

    Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 81–106 : Auteur(s): Butterworth, D.S., G.R. Gluckman, R.B. Thomson, S. Chalis, K. Hiramatsu and D.J. Agnew

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