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1. A simple approach for calculating the potential yield of krill from biomass survey results

   relative values of the ages at maturity and first-capture. Seasonal effects seem to be of lesser importance ... Paper Title:  A simple approach for calculating the potential yield of krill from biomass survey ... for the calculations is that the probability that the krill spawning biomass drops below 20% of its ... median pre-exploitation level over a 20 year period of harvesting should equal 10%. The value of, λ ... of the ages at maturity and first-capture. Seasonal effects seem to be of lesser importance ... and the extent of recruitment variability, as well as on the age-at-first capture, and Beddington and ... = 0.45 yr"l. The values of length-at -age at the start of the season corresponding to these estimates ... the entries in this Table are shown as "(1.00)". For the "base case" choice of identical ages at ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 207–217 : Author(s): Butterworth, D.S., A.E. Punt and M. Basson

2. CPUEs, body length and greenness of Antarctic krill during 1987/88 season in the fishing ground north of Livingston Island

   Paper Title:  CPUEs, body length and greenness of Antarctic krill during 1987/88 season in the ... fishing ground north of Livingston Island Abstract / Description:  In order to identify whether or not ... there was a marked change in two kinds of CPUEs, body length and greenness of krill during the fishing ... season, these parameters were examined for each 10-day period of the Japanese krill fishery in the ... essential searching activities (primary searching time of Butterworth, 1988), at least during the co ... WS-KCPUE-89/8 CPUES, BODY LENGTH AND GREENNESS OF ... ANTARCTIC KRILL DURING 1987/88 SEASON IN THE FISHING GROUND NORTH OF LlVINGSTON ISLAND Y. Endo and T ... . Ichii Abstract In order to identify whether or not there was a marked change in two kinds of CPUEs ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 323–338 : Author(s): Endo, Y. and T. Ichii

3. The use of analysis of penguin stomach contents in simultaneous study of prey and predator parameters

   samples from the same penguin or studying portions of stomach samples at different stages of digestion are ... Paper Title:  The use of analysis of penguin stomach contents in simultaneous study of prey and ... predator parameters Abstract / Description:  Size selectivity of krill by penguins is shown to be highly ... sensitive to the statistical assumptions made during the analysis of data. The nested ANOVA method is ... penguin or studying portions of stomach samples at different stages of digestion are proposed as ... 2). At this stage it seems reasonable to assume that the question of size selectivity of krill by ... within dates" component is, at least partially, a consequence of patch distribution of krill. A fraction ... to interpret because the distribution of penguins at sea is basically non-random. The proposed ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 367–375 : Author(s): Marschoff, E. and B. González

4. A hybrid approach to acoustic classification and length estimation of krill

   components are the mean ratios of the volume backscattering coefficients, measured at two different ... Paper Title:  A hybrid approach to acoustic classification and length estimation of krill Abstract ... / Description:  The problem of acoustically identifying and estimating the sizes of two euphausiid species is ... individually for each component of a vector, using classical Bayesian techniques. Classification probabilities ... mean ratios of the volume backscattering coeffi cients, measured at two different frequencies. The ... each of the organisms in the dominating sound-scatter volume at the frequency j if f ; • km = (2π/c ... r m fj frf k aΔ ≈ . The model has the shape of a two-state low- pass fi lter with the two bends at ... - ing a low value at the second bend. Thus to have a reliable value of afj / fi , Δfj / fi should be ...

   Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 33–58 : Author(s): Azzali, M., I. Leonori and G. Lanciani

5. The foraging range of Adélie penguins – implications for CEMP and interactions with the krill fishery

   superba. Locations of penguins on foraging trips were compared with historical records of fine-scale krill ... of penguins on foraging trips were compared with historical records of fine-scale krill catch data ... to the continental shelf and returned with krill, Etlplzausza superba. Locations of penguins on foraging trips were ... , the numbers of trips and the years over which tracking took place are provided in Table 1. Trivelpiece et ... tracking Adelie penguins on plotted in Figure 2 for the Mawson and Davis foraging trips by satellite ... to present individual foraging trips. The data on krill catches presented in Figures 2b and 3a-c were ...

   Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 75–87 : Author(s): Kerry, K.R., J.R. Clarke, S. Eberhard, H. Gardner, R.M. Lawless, S. Corsolini, S. Focardi, E. Franchi, D. Rodary and R. Thomson

6. The utilization of seabird censuses for krill monitoring

   :  The possibility of using bird observations made at sea as a means of monitoring krill in the Antarctic ... Paper Title:  The utilization of seabird censuses for krill monitoring Abstract / Description ... Ocean is explored. No variation source directly linked with krill was identified by means of ... correspondence analysis. Contour plotting, profile analysis and tests for equality of covariance matrices proved ... possibility of using bird observations made at sea as a means of monitoring krill in the Antarctic ocean is ... mentioned species are more or less suitable for direct observation, at the present state of the art it is ... present paper is the result of exploring the possibility of using bird observations made at sea, for the ... sufficient with the data set at hand. - 400 - 2. Function contour plotting: Taking the centroids of ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 393-425 : Author(s): Marschoff, E.R., J.G. Visbeek and L.R. Fontana

7. Krill biomass in Area 48 and Area 58: recalculations of FIBEX data

   the precautionary catch limits, SC-CAMLR has requested that the FIBEX data should be re-analysed using the most ... the two tasks outlined above. 2.2.1 Task (1) - Recalculation ofFIBEX Results Phase 1: Krill densities ... 5 and 6 in Appendix II of this paper. 3. RESULTS AND DISCUSSION 3.1 Task (1) - Recalculation ofFIBEX Results ... values (e.g., Anon. 1986) and used byWG-Krill in the conversion ofFIBEX biomass estimates to absolute ... Paper Title:  Krill biomass in Area 48 and Area 58: recalculations of FIBEX data Abstract ... estimates of mean density and biomass for the Indian Ocean sector and the West Atlantic sector as well as ... estimates were calculated using the target strength relationships used at the original FIBEX acoustic ... workshop. Estimates for the different areas were also calculated using the target strength relationships of ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 157–181 : Author(s): Trathan, P.N., D.J. Agnew, D.G.M. Miller, J.L. Watkins, I. Everson, M.R. Thorley, E. Murphy, A.W.A. Murray and C. Goss

8. By-catch of fish in longline catches off the Kerguelen Islands (Division 58.5.1) during the 1995/96 season

   at the limit of their bathymetric range. An abundance index was used to show bathymetric and ... Paper Title:  By-catch of fish in longline catches off the Kerguelen Islands (Division 58.5.1 ... ) during the 1995/96 season Abstract / Description:  By-catches of fish taken during a commercial fishing ... species were identified, of which the grenadier Macrourus carinatus, the skates Bathyraja eatonii  and B ... others were mainly shelf-dwelling species found at the limit of their bathymetric range. An abundance ... . 54 fish recorded per longline set). M . car ina tus was rare at depths of less than 700 m ... insignificant at depths of less than 700 m, shows a steady but gradual increase with depth (Figure 3). The ... of 725 to 1 348 m. The porbeagle Lamna nasus was present in only three sets at depths of 280 to ...

   Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 175–193 : Author(s): Duhamel, G., P. Pruvost and D. Capdeville

9. Preliminary results of investigations of the Federal Republic of Germany on Notothenia rossii marmorata (Fischer, 1885) in January/February 1985

   the spaw- nini! stock, was not accrequest.ell Lo refro..i.n from ... relationship Evaluation of the length - total weight. rel at.ionship Wt = a Lb was based on the entire ... ) ( 1) 4 6 39.8 900 892 5 56 44.4 12.36 12.37 6 112 li7. J 1503 1494 7 97 51. 6 1950 1938 8 .58 5.5.lt 2432 ... since 1981/82 and is still close to length at sexual maturity. The major part of the population ... Paper Title:  Preliminary results of investigations of the Federal Republic of Germany on ... further basic data needed for stock assessment purposes, to assess the actual size of Notothenia rossii ... probably still less than 10% of the pristine stock, Mean length in the catches has only slightly increased ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/2 (Selected Scientific Papers, SC-CAMLR-SSP/2) : 33-57 : Author(s): Kock, K.-H.

10. Estimating krill recruitment and its variability

    likelihood method is developed for the decomposition of krill density-at-length data into the proportion of ... recruits in a population sampled by a net haul survey. Preliminary results from a series of five net haul ... surveys in the South Atlantic and the Indian Ocean sectors of the Southern Ocean give a mean recruitment ... rate for 1+ krill (the ratio of the number of krill aged one year to the number of krill aged one year ... of krill density-at-length data into the proportion of recruits in a population sampled by a net ... , variability, CCAMLR de la Mare INTRODUCTION At least year's meeting of the Working Group on Krill (WG ... method for determining numbers-at-age is based on the decomposition of length frequency distributions ... , having a good fit to the distribution of observed densities-at-length from surveys. The assumption of a ...

    Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 55–69 : Author(s): de la Mare, W.K

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