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1. Predicting distribution and relative abundance of mid-trophic level organisms using oceanographic parameters and acoustic backscatter

   Abstract:  Data on the distribution and abundance of mid-trophic level organisms (MTLOs) in the ... predicted backscatter reasonably well in the Pacific sector of the SO, and in an independent dataset in the ... distribution of MTLOs in other parts of the SO. Author(s):  P.C. Escobar-Flores, R.L. O’Driscoll and J.C ... proxy for MTLO abundance in the epi- and mesopelagic zones. Boosted regression trees and generalised ...

   Meeting Document : WG-EMM-18/P07 : Автор(ы): P.C. Escobar-Flores, R.L. O’Driscoll and J.C. Montgomery

2. Laboratory target strength measurements of free swimming Antarctic krill (Euphausia superba)

   enabling the estimation of threshold induced bias in the target strength estimates. The threshold induced ... were in the range of [-0.84,-0.33] dB. An error analysis of the target strength estimates detailing the ... single animal insonifications. For mean length classes in the range [29.6, 36.2] mm the median single ... freely in the tank triggering the data acquisition system when generating a back scattered signal larger ...

   Meeting Document : WG-EMM-97/75 : Автор(ы): Pauly, T., Penrose, J.D.

3. A simulation study of krill fishing by an individual Japanese trawler

   response of the index, or a response rather smaller in relative magnitude than the biomass decline. Catch ... confidence will warrant being placed in the results from a simulation model of the fishery. Author(s):  D.S ... Abstract:  A model is set up for the operation (which includes both searching and fishing) of a ... Japanese krill trawler over a half-month period, and the output is compared to statistics from a sample of ...

   Meeting Document : SC-CAMLR-VI/BG/38 : Автор(ы): D.S. Butterworth (United Kingdom)

4. Diets of sympatrically breeding Adélie, gentoo and chinstrap penguins from Admiralty Bay, South Shetland Islands, Antarctica, 1981 to 2000

   among the three species in the years of high versus low food loads. Adélie and chinstrap penguin adults ... experienced significant declines in body weight during the chick provisioning period in several of the latter ... Living Resources (AMLR) marine surveys in the area. Finally, we examined the digested portion of the ... stomach contents and noted a significant increase in the proportion of digested versus fresh stomach ...

   Meeting Document : WG-EMM-03/29 : Автор(ы): W.Z. Trivelpiece (USA), K. Salwicka (Poland) and S.G. Trivelpiece (USA)

5. Estimating food consumption of marine predators: Antarctic fur seals and macaroni penguins

   offspring production. Uncertainty in the measurement of metabolic rate led to a positive bias in the mean ... amount of food consumed. Uncertainty in most other variables had little influence on the estimated food ... algorithm showed that the seasonal demand for food peaked in both species in the second half of the breeding ... occurred in both species during the first half of the breeding season. 5. As both Antarctic fur seals and ...

   Meeting Document : WG-EMM-02/23 : Автор(ы): I.L. Boyd (United Kingdom)

6. Short note: Time series of Drake Passage Oscillation Index (DPOI) during 1952-2008 and its possible influence on environmental variability

   Abstract:  An assessment of the environmental processes influencing variability in the recruitment ... krill recruitment and density in the Antarctic Peninsula area with an environmental factor; strength of ... and density of Antarctic krill (Euphausia superba DANA) is important as variability in krill stocks ... affects the Antarctic marine ecosystem as a whole. Naganobu et al. (1999) had assessed variability in ...

   Meeting Document : WG-EMM-08/33 : Автор(ы): M. Naganobu, J. Kondo and K. Kutsuwada (Japan)

7. ACOUSTIC IDENTIFICATION AND SIZE ESTIMATION OF EUPHAUSIIDS

   behaviour, measure target strength in situ, and of course verify the acoustic measurements biologically ... Abstract:  Fishery for krill is a major economical activity in the Antarctic Ocean. The increased ... Norwegian fishery inherently gives Norway a responsibility to contribute to the management of the marine ... resources in the southern ocean. During the International Polar Year 2008, RV “G.O. Sars” spent 3 months in ...

   Meeting Document : SG-ASAM-09/08 : Автор(ы): R. Korneliussen and G. Skaret (Norway)

8. At-sea distribution and prey selection of Antarctic petrels and commercial fisheries

   the non-breeding season. In a second step, we described the length frequency distribution of Antarctic ... like seabirds. In the Southern Ocean, there is an extensive fishery for Antarctic krill Euphausia ... the ones breeding far away and that disperse during the non- overlap between the distribution of the ... Antarctic krill fisheries and the distribution of a krill dependent seabird, the Antarctic petrel ...

   Meeting Document : WG-EMM-16/P15 : Автор(ы): S. Descamps, A. Tarroux, Y. Cherel, K. Delord, O.R. Godø, A. Kato, B.A. Krafft, S.-H. Lorentsen, Y. Ropert-Coudert, G. Skaret and Ø. Varpe

9. Linking acoustic scattering coefficient to krill fishery data: feasibility of estimating krill abundance using fishing survey

   higher than average catch of night trawls. The average thickness of krill swarm in the daytime was ... Abstract:  Antarctic krill (Euphausia superba Dana) is a key species in the Southern Ocean ... fisheries. In this paper, using the multi-frequency acoustic data and the fishery data, the relationship ... between the acoustic scattering coefficient of krill swarms and catch, catch per unit effort (CPUE), catch ...

   Meeting Document : WG-EMM-17/44 : Автор(ы): T. Wang, G.P. Zhu, J.F. Tong and L.X. Xu

10. Spectra analysis of Drake Passage Oscillation Index (DPOI) from 1952 to 2003, Antarctica

    Abstract:  An assessment of the environmental processes influencing variability in the recruitment ... , Argentina, and Base Esperanza, at the tip of the Antarctic Peninsula, sea ice cover and chlorophyll-a in the ... and density of Antarctic krill (Euphausia superba DANA) is important as variability in krill stocks ... affects the Antarctic marine ecosystem as a whole. Naganobu et al. (1999) had assessed variability in ...

    Meeting Document : WG-EMM-04/46 : Автор(ы): M. Naganobu and K. Kutsuwada (Japan)

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