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1. Calibration of an acoustic echo-integration system in a deep tank, with system gain comparisons over standard sphere material, water temperature and time

   acoustic system with a standard sphere. It presents the results of an extensive calibration of a Simrad ... EK500 scientific echo sounder with a 120 kHz sprit-beam transducer in a refrigerated 10m deep tank ... ), transmitted pulse length (0.1, 0.3, and 1.0 ms), target depth (0.8- 7.5 m), and time (149 days). A discussion ... -integration system in a deep tank, with system gain comparisons over standard sphere material, water ...

   Meeting Document : WG-KRILL-92/17 : Автор(ы): D.A. Demer and R.P. Hewitt (USA)

2. Can we use discriminant function analysis to sex penguins prior to calculating an index of a morphometric parameter?

   sex of individuals, it is only able to correctly sex a certain proportion of birds. Two overlapping ... normal distributions are used to show that there is a difference between the real mean parameter for a ... . Combining all data for both sexes is considered as a procedure for avoiding the necessity of sex ... knowledge about the sex ratio between years makes combining the data a very doubtful procedure and use of a ...

   Meeting Document : WG-CEMP-92/11 : Автор(ы): D.J. Agnew (Secretariat)

3. A feedback management strategy for the krill fishery in Subarea 48.1

   Abstract:  We present a Stage-2 strategy for in-season feedback management (FBM) of the krill ... fishery in Subarea 48.1.  This strategy is a combination of two strategies that were separately proposed ... to the WG-EMM in 2015 and is based on a broad foundation of work undertaken to address a suite of ... action items specified by the WG-EMM.  A decision rule to adjust catches in groups of SSMUs (gSSMUs) is ...

   Meeting Document : WG-EMM-16/48 : Автор(ы): G.M. Watters, J.T. Hinke and C.S. Reiss

4. Monitoring a marine ecosystem using responses of upper trophic level predators

   population size, breeding performance, offspring growth rate, foraging behaviour and diet. A method was ... developed for reducing these multivariate time-series to a single vector, called a combined standardised ... index (CSI). 2. Sensitivity analyses showed that missing values had a large effect upon the accuracy of ... significantly low values. There was a significant non-linear functional response (similar to the Holling Type II ...

   Meeting Document : WG-EMM-01/25 : Автор(ы): I.L. Boyd and A.W.A. Murray (United Kingdom)

5. A RE-APPRAISAL OF THE TOTAL BIOMASS AND ANNUAL PRODUCTION OF ANTARCTIC KRILL

   and length frequency (KRILLBASE) yield a summer distributional range of ~19 x106 km2 and a mean total ... abundance of 8x1014 postlarvae with biomass of 379 million tonnes (Mt). These values are based on a ... throughput for a species of this size. The similarity between the three production estimates reflects a broad ... agreement between the three growth models used, plus the fact that, for a given population size, production ...

   Meeting Document : WG-EMM-08/17 : Автор(ы): A. Atkinson (United Kingdom), V. Siegel (Germany), E.A. Pakhomov (South Africa), M.J. Jessopp (United Kingdom) and V. Loeb (USA)

6. A simulation study of krill fishing by an individual Japanese trawler (SC-CAMLR-VI/BG/37)

   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. It is based on an underlying krill distribution model ... the operation is compared with (and partially tuned to) statistics for a sample of data from the ... commercial fishery. A major inconsistency is found: haul times are a factor of 4-5 times greater in reality ...

   Meeting Document : WS-KCPUE-89/04 : Автор(ы): D.S. Butterworth (South Africa)

7. A simulation study of krill fishing by an individual JAPANESE trawler

   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. It is based on an underlying krill distribution model ... the operation is compared with (and partially tuned to) statistics for a sample of data from the ... commercial fishery. A major inconsistency is found: haul times are a factor of 4-5 times greater in reality ...

   Meeting Document : SC-CAMLR-VII/BG/37 : Автор(ы): D.S. Butterworth (Invited Expert)

8. Influence of the quality and quantity of data from a multi-year tagging program on bias and precision of biomass estimates from an integrated stock assessment – update

   estimates from an integrated tag-based assessment are influenced by various aspects of a multi-year tagging ... emerged within this overall trend. The results show that in the early stages of the tagging program, a ... high tag size-overlap is imperative to maximise the likelihood of a robust assessment. Tagging fish ... with a low tag size-overlap, even with large numbers, is likely to result in overestimates of biomass ...

   Meeting Document : WG-FSA-12/18 : Автор(ы): P.E. Ziegler (Australia)

9. The krill maturity cycle: a conceptual description of the seasonal cycle in Antarctic krill

   Abstract:  A long term study on the maturity cycle of Antarctic krill was conducted in a research ... aquarium. Antarctic krill were either kept individually or in a batch for 8 months under different ... . Based on these results, and information available from previous studies, we suggest a conceptual model ... describing seasonal cycle of krill physiology which provides a framework for future studies and highlight the ...

   Meeting Document : WG-EMM-06/23 : Автор(ы): S. Kawaguchi, T. Yoshida, L. Finley, P. Cramp and S. Nicol (Australia)

10. The case for a Ross Sea marine reserve

    Abstract:  The Ross Sea continental shelf and slope have a number of characteristics that make it ... an ideal candidate for a marine reserve, as evidenced by its inclusion in the list of 11 priority ... .¹ With exceptional biodiversity and evolutionary significance, as well as its potential as a climate ... a no-take MPA encompassing the shelf and slope. Scientific information presented to CCAMLR and the ...

    Meeting Document : CCAMLR-XXX/BG/23 : Автор(ы): Submitted by ASOC

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