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1. Fishes caught along with the Antarctic krill in the vicinity of the South Shetland Islands during the austral summer months of 1994

   of krill concentration (Figs. 1 and 2). The large incidental catch of fishes occurred in hauls with the low ... krill catch rates (Hauls. 36 and 47), and fishes are not found or rare within krill swarms of higher ... density. Author(s):  T. Iwami (Japan) Title:  Fishes caught along with the Antarctic krill in the vicinity ... was calculated (Tables 2 and 3). Fish abundance could have been depended on the density of krill concentration ...

   Meeting Document : WG-Krill-94/25 : Author(s): T. Iwami (Japan)

2. Direct ageing of Antarctic krill (Euphausia superba) – potential utility of eyestalk sections for age determination

   Abstract:  We outline a method for the direct determination of age in Antarctic krill (Euphausia ... proof of concept study using several known age krill grown under controlled conditions at the Australian ... are performed. First, longitudinal sections of the eyestalk from known age krill (2+ and 3+ years old) were ... . Second, six krill were aged (blind to the reader) from samples collected during summer and winter (2013 ...

   Meeting Document : WG-EMM-15/45 : Author(s): C. Reiss (USA), R. Kilada (Canada) and S. Kawaguchi (Australia)

3. Chinstrap penguins alter foraging and diving behaviour in response to krill size

   to changes in prey availability. Chinstrap penguins are dependent predators of Antarctic krill in the Scotia ... Sea region. Both the sizes of krill found in penguin diets and acoustic estimates of krill biomass ... recorders (TDRs) over five seasons: 2002-06. When krill were smaller, chinstrap penguins often exhibited ... the daytime. The average annual size of krill was negatively correlated to the number of penguins foraging ...

   Meeting Document : WG-EMM-07/11 : Author(s): A.K. Miller and W.Z. Trivelpiece (USA)

4. Krill distribution in the western Atlantic sector of the Southern Ocean during 1983/84, 1984/85 and 1987/88 on the basis of the Soviet mesoscale surveys with Isaacs Kidd midwater trawl

   area of krill between Antarctic Peninsula and South Georgia Island are considered. Surveys including ... to the standard method by Isaacs Kidd Midwater Trawl in the layer 0-100 m. Krill biomass distribution (g/1000 m3 ... . The results of surveys confirm modern understanding of general pattern of krill distribution and drift ... -temporal stability of the krill distribution field with more higher biomass of aggregations was observed ...

   Meeting Document : WG-EMM-98/32 : Author(s): V.A. Sushin and K.E. Shulgovsky (Russia)

5. Measurements of sound-speed and density contrasts of Antarctic krill (Euphausia superba) on board RV Kaiyo Maru

   Abstract:  In order to calculate the target strength of Antarctic krill (Euphausia superba) using ... contrasts between the animal and the surrounding water are required. Sound-speed and mass-density of krill ... and 2004/2005. Samples of krill were caught by a RMT(1+8). Mass-density of krill was measured by density ... . The corresponding sound-speed contrast of krill with mean total lengths of 44.2mm was 1.011 in the South Shetland ...

   Meeting Document : WG-EMM-08/56 Rev. 1 : Author(s): Y. Takao, H. Yasuma, R. Matsukura, K. Amakasu and M. Naganobu (Japan)

6. Krill biomass estimates for South Georgia, December and January 1996/97

   Georgia during December/January 1996/97. Netting suggested that the mean lengths of krill within ... box-specific krill target strength (TS) values of-38.89 and-38.59 dB kg-1. Acoustic signals believed ... to be attributable to krill were identified on the basis of the difference between mean volume backscattering ... strength at 120 and 38kHz (mvbsl20 kHz- mvbs38kHz between 2 and 12 dB indicative of krill). Mean volume ...

   Meeting Document : WG-EMM-97/48 : Author(s): Goss, C., Watkins, J.L., Brierley, A.S.

7. Bias in the estimation of krill yield from using a deterministic formulation of the median unexploited spawning biomass

   krill yields according to decision rules that relate spawning stock status to the median unexploited ... spawning biomass, SB0. The first model has been developed specifically for krill, the krill yield model ... of the spawning stock (as a proportion of SB0) at the end of the projection run (level of escapement). The krill ... . This paper examines the implications for estimates of krill yield from using the biased estimate of SB0 ...

   Meeting Document : WG-EMM-97/45 : Author(s): de la Mare, W.K., Constable, A.J.

8. Biomass/CCAMLR krill review

   Abstract:  Current knowledge of the ecology, biology and life history of the Antarctic krill ... are either directly or indirectly applicable to the effective management of krill exploitation within ... of krill on various scales ranging from the global to individual aggregations (e.g., swarms) is discussed ... separation considered. Recent attempts to assess the krill standing stock directly are examined ...

   Meeting Document : SC-CAMLR-VII/BG/39 : Author(s): D.G.M. Miller and I. Hampton (South Africa)

9. Some comments on the procedure of krill target strength assessment in echosurveys

   in echosurveys is discussed. It is known that krill abundance and biomass estimation should be considered as two ... selectivity and catchability. Krill abundance estimation related to TS target strength values requires another ... of MSBS (MVBS) acoustic parameter distribution and krill length (weight) distribution in the study area ... . However, the information obtained in that case provides not only total krill abundance value but also ...

   Meeting Document : WG-EMM-98/21 : Author(s): S.M. Kasatkina (Russia)

10. Target strength of Antarctic krill

    Abstract:  In-situ measurements of individual krill target strength are presented (modal value ... by the BIOMASS equation for 47.44mm krill. Author(s):  R.P. Hewitt and D.A. Demer (USA) Title:  Target strength ... of Antarctic krill Approval:  Approved ... In-situ measurements of individual krill target strength are presented (modal value = -69db). Net ...

    Meeting Document : WG-KRILL-91/13 : Author(s): R.P. Hewitt and D.A. Demer (USA)

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