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1. Status of krill target strength

   Paper Title:  Status of krill target strength Abstract / Description:  Empirical estimates for the ... target strength of krill are extracted from publications. These are confined to measurements on ... recommendations are made for future, improved determinations of krill target strength. Based on the comparisons ... . 7.1 Conclusion For the time being, in the absence of new data, the target strength of krill may be ... estimaciones de potencia del blanco del kril. Sobre la base de las comparaciones, se presentan las curvas de ... recognised as an important phenomenon in fish-scattering measurements (Weimer and Ehrenberg, 1975; Foote et ... theoretical computations, comparisons are made with data involving individuals, and recommendations are made ...

   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

2. Note on maturity of krill in relation to interannual fluctuations of food environment in the seas around the South Shetland Islands

   years data from commercial krill trawlers indicates that percentages of occurrence of gravid female was ... Islands is discussed. Data during 91/92 austral summer shows that when chlorophyll concentration in ... Abstract:  Relationship between food environment and maturity of krill around the South Shetland ... fraction larger than 2um was high, feeding activity of krill was also high in the natural environment. 5 ...

   Meeting Document : WG-KRILL-93/27 : Auteur(s): M. Naganobu and S. Kawaguchi (Japan)

3. Estimating krill recruitment and its variability

   likelihood method is developed for the decomposition of krill density-at-length data into the proportion of ... Paper Title:  Estimating krill recruitment and its variability Abstract / Description:  A maximum ... rate for 1+ krill (the ratio of the number of krill aged one year to the number of krill aged one year ... for 2+ krill (the ratio of the number of two-year-old krill to the number aged two and above) from ... of krill density-at-length data into the proportion of recruits in a population sampled by a net ... densities at each length with very long upper tails. RESULTS Data from a number of krill trawl surveys ... Variability Table 1: Krill surveys from which net haul data were analysed for proportions of recruits ... densidad por talla del kril en base a la proporcion de reclutas de una poblacion muestreada por una ...

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

4. An evaluation of reduced target strength estimates reported for krill (Euphausia superba)

   derived from them. Their results can be shown to have significant weaknesses in both data used and ... in the Antarctic. The weaknesses in their data stem from the methods used to calculate target ... strength from the data and fall into three categories: 1) Errors in measurements and assumptions; 2 ... on the same experiment and report new calculations of the target strength of krill (Euphausia superba ...

   Meeting Document : WG-KRILL-90/13 : Auteur(s): M.C. Macaulay (USA)

5. Factors to consider in developing management measures for krill

   krill fisheries. Various possible elements of procedures such as reactive, predictive, and feedback ... in developing management measures for krill Approval:  Approved ...

   Meeting Document : WG-KRILL-90/14 : Auteur(s): W.K. de la Mare (Australia)

6. Krill length and age at maturity

   identical for krill. Comparisons with length at age data show that females mature in the third year of the ... Abstract:  Data from several summer surveys to the Antarctic Peninsula region were analysed to ... calculate length and age at maturity for the Antarctic krill Euphausia superba. L50 values of 34.62 to 35.90 ... mm for female krill are the best estimates for the high spawning season. Males attain sexual maturity ...

   Meeting Document : WG-KRILL-93/40 : Auteur(s): V. Siegel (Germany) and V. Loeb (USA)

7. Chilean krill fishery: analysis of the 1991 season

   Abstract:  This paper summarized the chilean catch data for 1991. Especial emphasis is given to ... the analysis of haul-by-haul data and its use in understanding small scale spatial distribution of ... sites. Other uses of haul-by-haul data are suggestted. Author(s):  Victor H. Marín et. al. Title ... fishing grounds. The results show that the krill fishery in subarea 48.1 is particularly intense near CEMP ...

   Meeting Document : WG-KRILL-91/39 : Auteur(s): Victor H. Marín et. al.

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

   from these data. The percentages of “Egui” as an indicator of greenness of krill were too variable ... Paper Title:  CPUEs, body length and greenness of Antarctic krill during 1987/88 season in the ... 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 ... that a decrease in krill biomass in this area can be detected from these data. The percentages of ... , although Butterworth (1988) recommended collection of data on the greenness of krill to improve the ... that a decrease in krill biomass can be detected from CPUE data in the area north of Livingston Island ... kinds of CPUEs, catch/tow and catch/towing time (minute), were computed from the data recorded on log ...

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

9. On the intensity of sampling krill trawl catches

   Abstract:  This paper uses actual krill length frequency data in an attempt to address the problem ... variability and sample decomposition) which may influence length frequency data quality are also considered ... of determining adequate sample size to obtain representative krill length frequency distributions ... . The attention of WG-Krill is drawn to the following: * All measurements of length from commercial ...

   Meeting Document : WG-KRILL-90/27 : Auteur(s): D.G.M. Miller (South Africa)

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

    Peninsula from 26 December 1989 to 14 January 1990. Results were compared with data of an identical survey ... with RV ‘Polarstern’ in 1987/88. Seasonal variation between summer and winter abundance/biomass data ... Abstract:  A net sampling survey for krill was carried out by RV ‘Meteor’ along the Antarctic ... factor of 1.6 times. Krill mortality was calculated by linearized catch curve analysis and resulted a ...

    Meeting Document : WG-KRILL-91/15 : Auteur(s): Delegation of Germany

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