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1. Marine mammals and demersal longlines fishery interactions in Crozet and Kerguelen Exclusive Economic Zones: an assessment of the depredation level

   (Arctocephalus sp.) interactions with longlines fishing operations were reported by observers onboard of fishing ... and 2005. In Crozet waters, 71% of the 1308 longlines presented marine mammals interactions with ... % of the 6262 longlines monitored in the Kerguelen waters. Interactions occurred over the whole fishing ... . Depredation effect was assessed by comparing CPUEs of the longlines, in absence/presence of any marine mammals ...

   Meeting Document : WG-FSA-06/63 : Autor(es): C. Roche, N. Gasco, G. Duhamel and C. Guinet (France)

2. Modelling growth of Antarctic krill: growth trends with sex, length, season, and region

   Abstract:  Growth trends of Antarctic krill with sex, length, season and region using over 10 ... years accumulation of instantaneous growth rate (IGR) measurements were modelled using a Linear Mixed ... Model (LMM). A model of inter-moult period (IMP) as a function of temperature, required to convert IGR ... this model was used to predict seasonal IMP using a model of the average sea-surface temperature ...

   Meeting Document : WG-EMM-05/29 : Autor(es): S. Kawaguchi, S. Candy, R. King (Australia), M. Naganobu (Japan) and S. Nicol (Australia)

3. Orientation of Antarctic krill in an aquarium

   slightly less than that when animals were hovering, 49.7° (SD=7.5°, N=50). Such an acute angle of elevation ... . Although mature females with marked swelling of the cephalothorax were not included in the experiment, the ... center of mass was found to be situated more to the anterior than in males and immature females. The ... hovering orientation, which is close to average body orientation, of mature males and mature females was ...

   Meeting Document : WG-KRILL-93/24 : Autor(es): Y. Endo (Japan)

4. Blue-eyed shags as indicators of changes in ittora fish populations

   Abstract:  The use of Shag’s pellets as an appropriate technique to monitor the abundance of ... littoral fish populations is presented for consideration of the CCAMLR Ecosystem Monitoring Program Working ... Group. The effectiveness of the method is based on the very good agreement found between the fish ... species identified by the examinations of otoliths present in regurgitated cast and those regularly ...

   Meeting Document : WG-CEMP-93/25 Rev. 1 : Autor(es): R. Casaux and E. Barrera-Oro (Argentina)

5. Target strength of Antarctic krill

   Abstract:  In-situ measurements of individual krill target strength are presented (modal value ... reproductively mature and averaged 47.44mm in length. Results agree well with recent predictions of acoustic ... target strength based on extrapolations of other field experiments using the bent cylinder model of sound ... scattering by elongated zooplankters. The modal value of the measurements is 6.7dB lower than that predicted ...

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

6. Modelling and Decision Making as Part of the CCAMLR Management Regime

   environment essential for the effective management of the Antarctic marine ecosystem within the requirements ... of CCAMLR Article II. Eight attributes (purpose, description, variables, driving forces, time ... development of suitable simulations of important Antarctic marine ecosystem interactions and to facilitate the ... formulation of a suitable decision-making protocol for management purposes. Author(s):  D.G.M. Miller (South ...

   Meeting Document : WG-CSD-88/10 : Autor(es): D.G.M. Miller (South Africa)

7. plotImage – software for producing augmented image plots of spatially referenced data

   Abstract:  Software is presented for the automated production of standardised image plots of ... spatially referenced data. While developed to satisfy the specific requirements of WG-FSA, the routines have ... been developed to be as generic as possible and may be useful for displaying a wide range of data. This ... Working Groups for the display of spatially referenced data. Author(s):  J.P. McKinlay (Australia) Title ...

   Meeting Document : WG-SAM-10/22 : Autor(es): J.P. McKinlay (Australia)

8. Semi-empirical acoustic estimates of krill biomass derived from simulated commercial fishery data based on single-frequency acoustics

   fishing seasons. From these data we develop semi-empirical indices of acoustic biomass in a Generalized ... Linear Modeling framework. We correlate these estimates of biomass with acoustic estimates derived from ... Elephant Island and West Shelf Areas of the US AMLR survey grid. Cross-validation of acoustic estimates ... frequency of animals is skewed towards larger animals. We show that it is possible to develop semi-empirical ...

   Meeting Document : SG-ASAM-12/04 : Autor(es): A.M. Cossio, G.W. Watters, C.S. Reiss, J. Hinke and D. Kinzey (USA)

9. Results of the longline survey for toothfish in the northern Ross Sea region (Subarea 88.2 SSRUs A–B) by the FV Janas, New Zealand

   part of a multi-year and multi-member research plan using standardised longline gear to sample ... toothfish populations in the northern areas (60°‑ 66° S) of Subarea 88.2 SSRUs A–B. Sampling strategy and ... data collection adhered to standards set in CM 41-10 (2014). A total of 49.85 t of Antarctic toothfish ... sex-specific Fulton’s condition factor observed in the northern region of SSRU 88.2B were lower than ...

   Meeting Document : WG-SAM-15/46 : Autor(es): S.J. Parker, R.J.C. Currey and S. Mormede (New Zealand)

10. Comparison of NASC values calculated by swarm-based and grid-based acoustic data processing methods for Antarctic krill density estimation

    Abstract:  The one nautical mile integrated Nautical Area Scattering Coefficient (NASC) values of ... -based acoustic data processing methods. All parameter settings were consistent with the reports of SG ... -ASAM-2017 except that the dB difference window of Sv 120 kHz-Sv 38kHz is set 0 to 20 dB. And the two ... groups of results were compared by correlation, linear regression analysis and nonparametric significant ...

    Meeting Document : SG-ASAM-18/04 Rev. 1 : Autor(es): X. Yu, X. Wang and X. Zhao

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