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1. Diet of the Antarctic toothfish (Dissostichus mawsoni) from the Ross Sea, Antarctica (Subarea 88.1)

   a more southern dis- tribution, typically in higher latitudes south of 65ºS, is in Subarea 88.1 ... ., 2002), particularly from southwest Atlantic waters (Permitin and Tarverdiyeva, 1972; Tar- verdiyeva ... , 1972; Zhivov and Krivoruchko, 1990; McKenna, 1991; García de la Rosa et al., 1997; Pilling et al ... early-season exploratory effort well to the south onto shallower areas within the Ross Sea ... bottom longline in the Ross Sea during the 2001 and 2002 fishing seasons was analysed (3 937 and 5 426 ...

   Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 113–123 : Author(s): Fenaughty, J.M., D.W. Stevens and S.M. Hanchet

2. Using ecosystem monitoring data to detect impacts

   the early 1990s within a few years of its onset, but a fixed reference point method could have provided ... in Antarctic fur seal (Arctocephalus gazella) pup production at South Georgia from the early 1990s within a few ... years of its onset, but a fixed reference point method could have provided this sustained indication ... (Arctocephalus gazella) pup production at South Georgia from the early 1990s within a few years of its onset ... populations cannot always be assessed by reference to a control population. Developing man- agement ... biological parameters (including diet, breeding success, weight, growth rate and foraging trip duration ... program records a new observation, at, each year t. For ease of nota- tion, monitoring is assumed ...

   Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 197–212 : Author(s): Hill, S.L., J. Forcada, P.N. Trathan and C.M. Waluda

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

   monitoring conducted just prior to, or early in, the fishing season. For the purposes of illustration ... in some of its traditional fishing grounds during years of low krill availability. Under all five options ... allocation based on land-based predator monitoring conducted just prior to, or early in, the fishing season ... years of low krill availability. Under all five options there would be little effect on the existing ... -based predator monitoring conducted just prior to, or early in, the fi shing season. For the purposes ... monitoring, the fi shery would be restricted in some of its traditional fi shing grounds during years of low ... man- agement units (SSMUs). The Commission further directed the Scientifi c Committee to provide ... allocation based on land-based predator monitor- ing con ducted just prior to or early in the fi shing ...

   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

4. Towards the development of a management plan for mackerel icefish (Champsocephalus gunnari) in Subarea 48.3

   in years of poor krill availability. Thus natural  ortality of C. gunnari may, in some years, increase ... of coming periods of krill scarcity as early warnings of increased natural mortality of C. gunnari. Full ... with increased consumption of C. gunnari by Antarctic fur seals in years of poor krill availability. Thus natural ...   ortality of C. gunnari may, in some years, increase by a large factor (assumed here ... is low. consume about 28 000 tonnes of fish each year, of Surveys undertaken in the early 1990s ... /78, Bonner et al. (1978), in 1983/84, Heywood et al. (1985) and in later years Brierley et al. (1997 ... rates. These may be associated with increased consumption of C. gunnari by Antarctic fur seals in years ... of poor krill availability. Thus natural mortality of C. gunnari may, in some years, increase by a large ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 63–77 : Author(s): Agnew, D.J., I. Everson, G.P. Kirkwood and G.B. Parkes

5. Trends in relative abundance of fjord Notothenia rossii, Gobionotothen gibberifrons and Notothenia coriiceps at Potter Cove, South Shetland Islands, after commercial fishing in the area

   of relative abundance of this species and G. gibberifrons are well below those found in the early 1980s ... to the inshore sub-populations of N. rossii and G. gibberifrons over the last 16 years was most probably caused ... abundance of this species and G. gibberifrons are well below those found in the early 1980s. These results ... -populations of N. rossii and G. gibberifrons over the last 16 years was most probably caused by the offshore ... are grateful to C. Bellisio, M. Favero, A. Thibaud, R. Di Paola and E. Pinola for their cooperation ... are well below those found in the early 1980s. During the 16 years of observations the values observed ... are well below those found in the early 1980s. These results are supported by our knowledge about the diet ... over the last 16 years was most probably caused by the offshore commercial fishery in the area ...

   Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 43–52 : Author(s): Barrera-Oro, E.R., E.R. Marschoff and R.J. Casaux

6. Age and growth of Antarctic euphausiacea (crustacea) under natural conditions

   Peninsula and the south-eastern Weddell Sea. Life spans range from two years for Euphausia frigida to six ... and the south-eastern Weddell Sea. Life spans range from two years for Euphausia frigida to six years ... years for the krill Euphausia superba. Growth in length and weight was calculated by non-linear ... and the eastern Weddell Sea. Former opinions that differ are discussed. Seasonal growth was re-analyzed ... and the south-eastern Weddell Sea. Life spans range from two years for Euphausia frigida to six years ... . No difference in growth of krill was observed between the Antarctic Peninsula area and the eastern Weddell Sea ... triacantha, and a three-year life span proposed. Male Euphausia cr¥stallorophias have a shorter life span ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 369-370 : Author(s): Siegel, V.

7. Improving estimates of Adélie penguin breeding population size: developing factors to adjust one-off population counts for availability bias

   of breeding sites, and dif- ficulty accessing them at predictable times of the year, means that population ... reaching a peak in early November (Figure 1). Many of these penguins form pairs, establish nests ... ) to undertake a foraging trip of around 17 days duration (Emmerson et al., 2003). Non-breeders and failed ... undertakes a short foraging trip. During this guard phase, many non-breeding birds return to breeding sites ... point one week after the peak in egg laying, consistent with Standard Method A3 of the CCAMLR Ecosystem ...

   Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 229–241 : Author(s): Southwell, C., J. McKinlay, L. Emmerson, R. Trebilco and K. Newbery

8. Distribution and size of Antarctic krill (Euphausia superba Dana) in Polish commercial catches taken in the Atlantic sector of the Southern Ocean from 1997 to 1999

   , 1980). The results presented in this paper confi rm the general pattern of day and night krill dis ... conditions such as dis- solved oxygen and water temperature or water mass movements determine availability ... , therefore their results do not refl ect the year-round structure of krill concentrations. Additionally ... (1935) and Marr (1962) produced a diagram showing the distribution of krill aggregations at different ... summer from 1997 to 1999. The density of concentrations varied with area and season. The densest ... mean density varied from 11 to 31 370 specimens per 1 000 m 3. At night, krill concentrations were ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 83–105 : Author(s): Jackowski, E

9. Assessments of the stocks of Notothenia rossii marmorata and Champsocephalus gunnari in the South Georgia area

   to underestimation of the strength of year classes recruited before the start of the fishery compared to later ... in these trawls is similar to that of the USSR samples in the later years, it is reasonable to assume a common ... Working Group meeting, this paper presents some refinements on the previous year's analyses. Although ... rate to the stock in each year implied by the age data. The catch at age data themselves do ... its pre-exploitation biomass, while the stock of Champsocephalus gunnari has fluctuated greatly with ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 1-21 : Author(s): Cooke, J.G.

10. Krill (Euphausia superba) distribution in relation to water movement and phytoplankton distribution off the northern South Shetland Islands

    to early February 1991. This increased krill density in early February 1991 (157 g/m 2) was 54% lower than ... December 1990 to early February 1991. This increased krill density in early February 1991 (157 g/m2) was 54 ... trips of fur seals rather long (5 to 9 days compared to 1 to 3 days later in the season) (AMLR, 1991 ... times over a period of 40 days from late December 1990 to early February 1991. This increased krin ... density in early February 1991 (157 g/m2) was 54% lower than that observed in late January 1988 ... with the yearly catches of 10 000 to 70 000 tonnes for the past eight years. This region, because ...

    Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 123–140 : Author(s): Ichii, T., H. Ishii and M. Naganobu

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