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1. Distribution and relative abundance of Antarctic toothfish (Dissostichus mawsoni) on the Ross Sea shelf

   las áreas de distribución de D. mawsoni y de sus posibles depredadores, y por ende, donde es más ... within the shelf area. Depths provided in this paper are the mean of the depths at the start and end ... Zealand vessel completed three sets at the end of the season. Hanchet et al. 38 The Terra Nova Bay ... was that the fishing location was changed by several kilometres after the 2000 fishing season due to changes in fast ... the Ross Sea shelf Abstract / Description:  This paper summarises knowledge of the distribution and ... relative abundance of Antarctic toothfish (Dissostichus mawsoni) on the Ross Sea shelf (defined here as the ... continental shelf out to the edge of the shelf break at about 600–800 m depth). The focus is on D. mawsoni ... catches from the shelf, as this area is likely to have the greatest overlap between D. mawsoni and ...

   Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 33–51 : Author(s): Hanchet, S.M., S. Mormede and A. Dunn

2. Fatty acid and stable isotope analyses to infer diet of Antarctic toothfish caught in the southern Ross Sea

   constraints at the end of the survey (after Hanchet et al., 2012). 170°00'E 175°00 ... for management, with depth contours plotted at 1 000 m. Survey area was in the south of SSRUs 881J and L (after ... , closed under nitrogen, and then heated on a hot block at 100°C for 5 min. After cooling, 5 ml ... to the mixture. Enough voltexing was undertaken after capping under nitrogen, and then the upper isooctane ... in the southern Ross Sea Abstract / Description:  To infer important prey resources for Antarctic ... toothfish (Dissostichus mawsoni) in the southern Ross Sea, their lipid composition was determined and ... compared to lipid profiles of fish and invertebrate species taken as by-catch in the fishery or collected ... from the stomachs of toothfish. Stable carbon and nitrogen isotope ratios were also determined to ...

   Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 21–36 : Author(s): Jo, H.-S., I. Yeon, C. Lim, S.M. Hanchet, D.-W. Lee and C.-K. Kang

3. Telemetry monitoring of ecological resources

   will not be reset and the clock sends an output after a pre-set time, typically four hours. This output ... as a helix at one end, or a whip external to the main transmitter package. The latter gives higher power ... separates the signal from the noise. After the signal is received it may be processed using the same ... monitoring using the Argos/Tiros system and satellite transmission of data are also covered. File:  24 ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 495-511 : Author(s): Kuechle, V.B.

4. Estimation of krill (Euphausia superba) mortality and production rate in the Antarctic Peninsula region

   from the starting and the end of the cycle. Elimination is defined as the difference between original ... parameters assumptions had to be made. The natural mortality rate of krill at one year after hatch ... data. Total mortality was Z = 0.65 for the time before and Z = 0.45 for the period after the reduction ... to calculate a ratio of PIB = 1.8 to 2.3 and stated the lower end of the range being more likely. Yamanaka ... Paper Title:  Estimation of krill (Euphausia superba) mortality and production rate in the ... Meteor along the Antarctic Peninsula from 26 December 1989 to 14 January 1990. Results were compared with ... ratio of 0.88 to 0.94 for different years. The exchange rate of water masses and krill biomass within ... biomass (including production) of 4.3 and 5.0 x 10 6 tonnes passing through the survey area during the ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 159–176 : Author(s): Siegel, V.

5. Possible effects of different levels of krill fishing on predators – some initial modelling attempts

   . one realised after any transient effects from the commencement of fishing at an intensity y have ... adult survival rate provided by CCAMLR (1993) (but see further discussion at the end of this sub ... . Thus, the assumption being made is that the distribution of NIK, will have stabilised after 200 years ... at which the predator adult survival rate begins to fall. Comparative results when krill recruitment ... modelling attempts Abstract / Description:  An initial attempt is made to develop the modelling framework ... suggested by the Joint Meeting of CCAMLR's Working Group on Krill (WG-Krill) and Working Group for the ... CCAMLR Ecosystem Monitoring Program (WG-CEMP) in 1992, in order to investigate the possible effects of ... krill fishing on krill predators. First, estimates are made of the parameters of predator survival rates ...

   Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 79–97 : Author(s): Butterworth, D.S. and R.B. Thomson

6. Survey design to estimate krill abundance during FIBEX

   8 PACK ICE BOUNDARY 0'1 C) o (f) 100·W Figure 2: Example of a survey subarea at the end ... of the primary phase (after BIOMASS 1980b). Phase 2 transects would be run only in the anticipated high density ... of the primary aims of FIBEX (First International BIOMASS Experiment), 1981 was to study the ... methodology for assessing the abundance of krill. The survey design used in the southwest Atlantic study area ... of the FIBEX is described in this paper. Sampling involved the use of echo sounders for estimating ... krill abundance as well as collection of data on the size, density and distribution of krill swarms. In ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 253–263 : Author(s): Everson, I., I. Hampton and G.M. Jolly

7. An impact assessment framework for bottom fishing methods in the CAMLR Convention Area

   ), the impact footprint of a bottom longline set is likely to be dif- ficult to discern after the fact ... footprint on a per-set basis (i.e. two anchors on either end of the line) and calculation of the backbone ... to that of the standard set). • Scenario 3: Floats on both ends lost; attempted recovery of lost gear (additional ... mainly exploratory, i.e. fishing occurred in a single year after which the area was not revis- ited ... Paper Title:  An impact assessment framework for bottom fishing methods in the CAMLR Convention ... Area Abstract / Description:  This paper presents a methodological framework to estimate the likely ... cumulative impact on fragile benthic organisms from bottom fishing activity. The approach has been designed ... preliminary assessment of bottom fishing impacts for the 2008/09 toothfish longline fishery. This paper ...

   Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 195–210 : Author(s): Sharp, B.R., S.J. Parker and N. Smith

8. Spatially explicit population dynamics models for Antarctic toothfish in the Ross Sea region

   (median of about 20 km after a year at liberty, see Parker et al., 2013), suggests that the assumption ... is the value of cell (i,j) for category k at age l at the end of the 100th year of the second initialisation ... phase, and a3 the respective value at the end of the 101st year. (Note that perfect con- vergence would ... of untagged fish in each cell, after applying double-normal fishery selectivity (estimated). According ... Paper Title:  Spatially explicit population dynamics models for Antarctic toothfish in the Ross ... Sea region Abstract / Description:  Population modelling software was developed that captures the ... dynamics of spatial heterogeneity of the population along with age structure, movement and reproductive ... models were developed for the Antarctic toothfish (Dissostichus mawsoni) population in the Ross Sea ...

   Science Journal Paper : CCAMLR Science, Volume 21 (CCAMLR Science, Volume 21) : 19–37 : Author(s): Mormede, S., A. Dunn, S. Hanchet and S. Parker

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

   level is 0.1; (ii) Rule 2: y2 is the catch level at which the ratio of the median stock biomass after ... after 10 years to median stock biomass in the absence of fishing (smoothed). CCAMLR's y2 level is shown ... , in only one-third of these was the spawning stock level less than 20% of the median level at the end ... not seem to be appropriate for this stock. y2, the catch at which median SSB at the end of the 10-year ... Paper Title:  Towards the development of a management plan for mackerel icefish (Champsocephalus ... gunnari) in Subarea 48.3 Abstract / Description:  Management of the mackerel icefish (Champsocephalus ... gunnari) at South Georgia is complicated by the likelihood of substantial periodic variations in natural ... outlines a scheme which would use information from studies on krill and predators undertaken as part of the ...

   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

10. Antarctic krill and ecosystem management – from Seattle to Siena

    . movement). A year after initiat- ing the above, CCAMLR adopted its fi rst krill Conservation Measure (32 ... statistical subareas (Trathan, et al., 1992, 1995) using a revised acoustic target strength for krill (after ... areas (SC-CAMLR, 1992 onwards). Sea-Ice After water circulation, the environmental factor most ... into krill management. Progress on these topics after 1994 is refl ected in the papers by Agnew and Nicol ... / Description:  This paper outlines CCAMLR’s development of a management approach for the Antarctic krill ... (Euphausia superba) fishery and associated ecosystem component between 1984 and 1995. The approach is shown ... to be consistent with the objectives of the CAMLR Convention, particularly its Article II. Emphasis ... is given to the initiation of the CCAMLR Ecosystem Monitoring Program (CEMP) and the deliberations of ...

    Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 175–212 : Author(s): Miller, D.G.M

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