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1. Climate change and zooplankton dominance in the Antarctic marine ecosystem: implications for the food web

   is a major factor regulating recruitment and population size of Antarctic krill (Euphausia superba ... ) and population dynamics of salps (Salpa thompsoni). Strong krill recruitment success there follows years ... sea-ice. An order of magnitude decrease of krill population size, increased incidence of massive salp ... blooms, and decreased abundance of krill-dependent Adelie penguins (Pygoscelis adeliae) in the past 15 ...

   Meeting Document : WG-EMM-96/21 : Author(s): Siegel, V., Fraser, W., Trivelpiece, S., Holm-Hansen, O., Loeb, V., Hewitt, R., Trivelpiece, W.

2. Fishing and conservation in southern waters

   Abstract:  Fishing in the Southern Ocean commenced on finfish in 1969/70 and on krill in 1972/73 ... and the Kerguelen Islands. After 15 years of exploitation, most fish stocks have been heavily depleted. The krill ... competition between krill fisheries and krill-dependent predators. Potential impacts of krill and finfishing ... in the krill fishery, to incidental mortality of birds during longline operations and the entanglement of seals ...

   Meeting Document : SC-CAMLR-XII/BG/11 : Author(s): Delegation of Germany

3. Interannual variation in the diet of the Antarctic prion Pachyptila desolata at South Georgia

   krill Euphausia superba was the dominant prey item in three years and was replaced by calanoid copepods ... , especially Rhincalanus gigas and Calanoides acutus, in two years of low krill abundance. Differences ... in the prey species taken and observations of foraging behaviour suggest that in years of low krill ... a comparable level of reproductive success, unlike most other krill feeding species which suffer much reduced ...

   Meeting Document : WG-EMM-97/12 : Author(s): Croxall, J.P., Edwards, T.M., Reid, K.

4. Evaluating MPA scenarios in Planning Domain 1 using a dynamic food-web model

   results indicate that protecting regions where krill are anticipated to concentrate in the future could ... positively affect biomass accumulation of krill and some krill predators. Additionally, protecting areas ... proposed for protection might positively impact the biomass of krill and krill predators. Protection ... that protecting regions where krill are anticipated to concentrate in the future could positively affect biomass ...

   Meeting Document : SC-CAMLR-XXXVII/BG/04 : Author(s): Delegation of the USA

5. In situ target strength measurements of Antarctic zooplankton (Euphausia superba and Salpa thompsoni) at 120 khz and 200 khz, corroboration of scattering models, and a statistical technique for delineating species

   each animal's spheroidal nucleus. Consistent with the measurements of encaged krill [K.G. Foote et ... (1993)], the TS of in-situ krill are shown to fit a deformed cylinder model [T.K. Stanton, et al ... % of the tests indicated the presence of salps without krill and about 3% revealed krill without salps. The salp ... /no krill echograms were characterized by diffuse scattering layers which were much higher in volume ...

   Meeting Document : WG-Krill-94/12 : Author(s): D.A. Demer and R.P. Hewitt (USA)

6. Important aspects of prey distribution for the formation of foraging areas of chinstrap penguins and Antarctic fur seals at Seal Island

   inshore are: 1) proximity to breeding colonies and 2) high krill (Euphausia superba) abundance, whereas ... those of foraging slope/offshore are: 3) less patchy krill distribution, 4) shallow krill distribution ... , 5) larger krill size and 6) occurrence of energy-rich bioluminescing myctophid fish at night. Chinstrap ... may not be necessarily associated with dense aggregation of krill, but with distribution pattern ...

   Meeting Document : WG-EMM-97/28 : Author(s): Bengtson, J.L., Hiruki, L.M., Naganobu, M., Ichii, T., Meyer, W.R., Cameron, M.F., Boveng, P., Takao, T., Miura, A., Jansen, J.K., Kawaguchi, S., Hayashi, T.

7. Warming effects in the Western Antarctic Peninsula Ecosystem: the role of population dynamic models for explaining and predicting penguin trends

   by complex links between climatic variables, primary productivity, krill and avian predators ... . There are several studies reporting statistical relationships between climate, krill and penguins population size ... to be influenced by the inter-annual variability in the sea-ice extent and krill biomass. In this paper we ... developed simple conceptual models for decipher the role of climate and krill fluctuations on the population ...

   Meeting Document : WG-EMM-12/18 : Author(s): M. Lima and S.A. Estay (Chile)

8. A review on the feeding conditions of the baleen whales in the Southern Ocean

   and unpublished data since 1946. Past geographical distributions of the krill in the whales stomach revealed ... that the frequency occurrence by krill size showed that the large krill(>50mm) occurs more frequently ... krill (Author(s):  A. Kawamura (Japan) Title:  A review on the feeding conditions of the baleen whales ... and unpublished data since 1946. Past geographical distributions of the krill in the whales stomach revealed ...

   Meeting Document : WG-KRILL-93/16 : Author(s): A. Kawamura (Japan)

9. Approaches to data collection and analysis for detecting and quantifying functional overlap at the scale of the individual vessell

   between the krill fishery and pelagic krill predators has been discussed throughout the SC-CAMLR Working ... interactions and competition between the krill fishery and krill-dependent predators during fishing operations ... , and b) how krill acoustic surveys and transects could also be used to provide data for wider ecosystem ... the krill fishery and pelagic krill predators has been discussed throughout the SC-CAMLR Working Groups ...

   Meeting Document : WG-EMM-18/33 : Author(s): M. Söffker and N. Gasco

10. A study on calibration for commercial echosounder using the bottom backscattering strength from a fishing vessel near the South Shetland Islands in Antarctic

    Abstract:  In this study, we calibrated a commercial echosounder (ES70) installed on a krill ... fishing vessel to use it in estimating biomass of Antarctic krill (Euphausia superba). The method ... . 38kHz and 120kHz were used for the calibration, and krill swarm signals, obtained from multi frequencies ... by bottom backscattering strength, since the proportion of krill swarm signals within 2 dB < S V120kHz‒38 ...

    Meeting Document : WG-EMM-16/61 : Author(s): Delegation of the Republic of Korea

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