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1. e-sc-xxxi-a04.pdf

   ... ..................................................................... 119 Data collection protocols for krill biomass estimates ................................ 119 ... collection of data on pelagic species other than krill ............ 120 Collection of biological and other ... qualitative and quantifiable information on the distribution and relative abundance of Antarctic krill ... acoustic data collected from fishing vessels and how this could contribute to the management of the krill application/pdf attached to:SG-ASAM-12

   Meeting Report : SG-ASAM-12

2. Towards the development of a management plan for mackerel icefish (Champsocephalus gunnari) in Subarea 48.3

   years of poor krill availability. Thus natural  ortality of C. gunnari may, in some years, increase by a ... large factor (assumed here to be 4), declining to normal levels again when krill return. This paper ... outlines a scheme which would use information from studies on krill and predators undertaken as part of the ... predictions of coming periods of krill scarcity as early warnings of increased natural mortality of C. gunnari ... of poor krill availability. Thus natural mortality of C. gunnari may, in some years, increase by a ... large factor (assumed here to be 4), declining to normal levels again when krill return. This paper ... outlines a scheme which would use information from studies on krill and predators undertaken as part of ... predictions of coming periods of krill scarcity as early warnings of increased natural mortality of C ...

   Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 63–77 : Autor(es): Agnew, D.J., I. Everson, G.P. Kirkwood and G.B. Parkes

3. 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 of ... . 38kHz and 120kHz were used for the calibration, and krill swarm signals, obtained from multi frequencies ... calibration by bottom backscattering strength, since the proportion of krill swarm signals within 2 dB < S ...

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

4. A study on calibration for commercial echosounder using bottom backscattering strength 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 of ... . 38kHz and 120kHz were used for the calibration, and krill swarm signals, obtained from multi frequencies ... calibration by bottom backscattering strength, since the proportion of krill swarm signals within 2 dB < S ...

   Meeting Document : SG-ASAM-17/P01 : Autor(es): S.-G. Choi, H. Lee, K. Lee and J. Lee

5. 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 ...

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

6. Editorial

   interpreting indicators from populations that may be depleted. The suite of papers on krill cover the spectrum ... krill fishing; as well as a description of the analysis of acoustic data to determine krill biomass ... habitats. In the case of Antarctic krill, there are papers that describe how abundance estimates are ... derived from acoustic data, details of the krill and fish by-catch taken in the krill fishery and a novel ... indicators from populations that may be depleted. The suite of papers on krill cover the spectrum of ... analysis of data gathered on fishing vessels to using trends in patents to predict the future for krill ... fishing; as well as a description of the analysis of acoustic data to determine krill biomass. During ... the case of Antarctic krill, there are papers that describe how abundance estimates are derived from ...

   Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 167 : Autor(es): Editors

7. Reconciling fisheries with conservation: three examples from the Southern Ocean

   CCAMLR with regard to fisheries on Antarctic krill (Euphausia superba), mackerel icefish ... a unique set of circumstances and unresolved concerns. While the current fishery for krill is small ... land-breeding krill predators may pose a threat as well as those posed by the broader-scale influence ... of climatic cycles and trends on krill production. Management of the fishery on mackerel icefish ...

   Meeting Document : WG-EMM-04/48 : Autor(es): R.P. Hewitt (USA), I. Everson (United Kingdom) and C.D. Jones (USA)

8. Analysis of the diet of Champsocephalus gunnari in Subarea 48.3, in late summer of years 1994–97, Dr E. Holmberg surveys

   ;Q" (%) methods. Krill (Euphausia superba) followed by the amphipod hyperiid Themisto ... years of krill scarcity and fish, was only occasional or in negligible amounts, showing interannual ... of krill in the Statistical Subarea 48.3 in the period investigated can be defined as low in 1944 ... , equivalent to those years of krill scarcity; intermediate in 1995, below the historical years of high ...

   Meeting Document : WG-FSA-97/48 : Autor(es): Barrera-Oro, E., Marschoff, E., Casaux, R.

9. Linking predator and prey behaviour: contrasts between Antarctic fur seals and macaroni penguins at South Georgia

   are the two main land-based krill Euphausia superba consumers in the northern Scotia Sea. Using a ... these sympatric top predators during the austral summer and autumn of 2004. Krill availability derived ... from acoustic surveys was low during summer, increasing in autumn. During the breeding season, krill ... Electrona antarctica), with krill (33%) and amphipods (Themisto gaudichaudii; 21%) also occurring. When ...

   Meeting Document : WG-EMM-10/P07 : Autor(es): C.M. Waluda, M.A. Collins, A.D. Black, I.J. Staniland and P.N. Trathan

10. Inter-annual variation in condition index of the mackerel icefish Champsocephalus gunnari

    . High condition indices, indicative of good feeding conditions, were present when krill were abundant in ... the region. Years when krill were scarce and condition index was consequently low, were consistent ... with years when indices from land-based krill predators also indicated krill were scarce. Author(s ...

    Meeting Document : WG-EMM-96/43 : Autor(es): Parkes, G., Everson, I., Kock, K.-H.

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