Search results

1. 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

   in the middle of the growth season as for model 1 (i.e., in mid-December: t = 1.5/12). As M now varies ... the balance of the 'year' (growth having ceased): In the middle of the growth season their mass-at-age ... 2: The survey estimate of biomass is made in the middle of the growth season (i.e. mid-December), and prior ... be accounted for here by 'pretending' that all these krill are lost to natural mortality on the verge ...

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

2. 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

   stretching from the Antarctic Peninsula to the eastern part of the South Orkneys area. The greatest ... of water flow from southern areas). It is also demonstrated that the absence of krill in the eastern part ... to the eastern part of the South Orkneys area. The greatest variability of krill distribution on the spatial ... demonstrated that the absence of krill in the eastern part of the Scotia Sea may cause it to be absent from ... stretching from the Antarctic Peninsula to the eastern part of the South Orkneys area. The greatest ... of water flow from southern areas). It is also demonstrated that the absence of krill in the eastern part ... the Antarctic Peninsula to South Georgia, including Bransfield Strait, South Orkney Islands and the eastern ... meridional sections, located to the north of the island, then sailed to the eastern part of the Scotia Sea ...

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

3. A balanced model of the food web of the Ross Sea, Antarctica

   , starvation); (iv) ‘messy eat- ing’ i.e. parts of animals that died due to predation but were not consumed ... that primary production in the water column in the Ross Sea is bimodal (DiTullio et al., 2000; Smith et al ... somewhat of a compromise. Many of the lower and middle TL biota are grouped, whereas the upper preda ... as the primary concern of this study is middle and upper TL groups. The initial set of parameters was not self ...

   Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 1–31 : Author(s): Pinkerton, M.H., J.M. Bradford-Grieve and S.M. Hanchet

4. Distribution of mackerel icefish (Champsocephalus gunnari) (Channichthyidae) around South Georgia at various stages of its life cycle

   to be dis- tributed throughout the water column at all times of the day, but they also undertake vertical ... was obtained and its functional structure described. The South Georgia population of C. gunnari is dis ... of the shelf where depth was mainly about 200 m, while mature fi sh were dis- tributed in the northern area ... . Peak catches were obtained in the middle of the day. At dusk fi sh aggregations ascended ...

   Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 49–69 : Author(s): Frolkina, Zh.A

5. Age and growth of the Antarctic skate (Amblyraja georgiana) in the Ross Sea

   of 6–7 years for males and 8–11 years for females. These estimates are near the middle to upper end ... of 6–7 years for males and 8–11 years for females. These estimates are near the middle to upper ... for the datasets including outliers. Reading 1 0 2 4 6 8 10 12 14 16 R ea di ng 2 (m ea n ± 2S ... 1 2 2 8 3 1 4 2 5 1 1 1 6 2 5 2 1 1 1 1 7 2 1 2 2 1 3 7 4 1 1 1 3 1 3 3 1 1 2 3 6 3 1 1 2 2 2 1 1 1 3 1 1 1 3 1 1 1 2 1 R ea di ng 2 (m ea n ± 2S E ) Figure 3: Within-reader comparison of thorn band counts ... – revisited. In: di Prisco, G., E. Pisano and A. Clarke (Eds). Fishes of Antarctica: a Biological Overview ... for males and 8–11 years for females. These estimates are near the middle to upper end of the range of ages ...

   Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 183–194 : Author(s): Francis, M.P. and C. Ó Maolagáin

6. Preliminary appraisal of Antarctic fish selection by the 32/36 bottom trawl combined with various codends

   , reaching down to the middle of the codend side walls. The codend bottom was deprived of its selective ... properties up to the middle of side walls by placing inside it, the same fine-meshed inset. In this way ... was the badly chosen mesh size, which had lost selectivity ability for this species, and the double-layer ... in its middle and final part a typical selectivity curve. It was characterized by a gentle sloping ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 1-48 : Author(s): Zaucha, J.

7. Environment–krill relations in the South Georgia marine ecosystem

   environment. Mackintosh (1972) drew attention to the correlation between the size of the scientific ... greater than in wa rm seasons (e.g. 1936/37). Mackintosh (1972) deve loped this theme and highlighted ... Marine Ecosystem For the eastern area of the Scotia Sea around South Georgia, it has been suggested ... temperature in the 0-50 m layer at the eastern South Georgia shelf (square: 53.75-52.25"s; 36.5-35.5OW ...

   Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 13–30 : Author(s): Fedoulov, P.P., E. Murphy and K.E. Shulgovsky

8. Estimating the impact of depredation by killer whales and sperm whales on longline fishing for toothfish (Dissostichus eleginoides) around South Georgia

   ) and replacing the lost catch. In addition, fishery managers must decide how to account for what can ... = 0.0003), although the pod size appears to be lower in the middle of the fishing sea- son (Figure ... that using fish-remains on the line could provide a standardised method of estimating number of fish lost ... lost. Thus, the comparison of standardised CPUE is potentially a more reliable method of estimating ...

   Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 163–178 : Author(s): Moir Clark, J. and D.J. Agnew

9. A rationale for conservation areas within Antarctic waters

   of 1970/71 to 1972/73, Gilbert and Erickson (1977) proposed six residual pack ice regions - 521 ... A (January-February, 1972) and in location B (January, 1973) enabled densities to be compared with earlier ... pack ice recorded in the summers of 1970;71 to 1972;73, Gilbert and Erickson proposed zones for seal ... of Adelie penguins occur in the eastern margin of the Ross Sea, the coast adjacent to the prydz Bay gyre ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 513-535 : Author(s): Chittleborough, R.G.

10. An assessment of the impact of krill fishery on penguins in the South Shetlands

    obtained around Elephant Island and the eastern end of King George Island in late January and early March ... , activity budgets and foraging trip duration (Everson, 1987; Trivelpiece et al., 1987). During shipboard ... and Demer (1993). (3) Distribution of krill catches in the middle 10 days of March 1991. Impact ...

    Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 107–128 : Author(s): Ichii, T., M. Naganobu and T. Ogishima

Pages