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1. Uncertainty in echosounder calibrations

   Abstract:  Calibration of echo sounders for fish stock assessment are commonly performed using the ... standard sphere method (Johannesson and Mitson, 1983; Simmonds et al., 1984). To determine the accuracy of ... the method, direct measurements of target strength (TS) were made of three standard spheres (Copper ... (Cu)- 23.0 mm and tungsten carbide (WC)- 33.0 mm and 38.1 mm). At the best case range of 5 m, the TS ...

   Meeting Document : WG-EMM-96/40 : Autor(es): Soule, M.A., Demer, D.A.

2. Towards a strategic framework for assessing uncertainty in ecosystem dynamics models: objectives are sensitive too

   candidate feedback management approaches for the Antarctic krill fishery in the southern Drake Passage and ... Scotia Sea. The Foosa ecosystem dynamics model was developed to perform spatially resolved, stochastic ... simulations of krill, its predators and fishery. It has been used to provide advice on the spatial allocation ... of the precautionary catch limit for krill. Foosa might therefore be a suitable simulation platform ...

   Meeting Document : WG-EMM-12/20 Rev. 1 : Autor(es): S. Hill and J. Matthews (United Kingdom)

3. Mitigation of Macrourus by-catch in research block 58.4.1_6 and estimation of Macrourus biomass and sustainable catch in Divisions 58.4.1 and 58.4.2

   Abstract:  Macrourus spp. are the major by-catch species in the exploratory toothfish fishery in ... ) avoidance, ii) mitigation and iii) the setting of sustainable by-catch limits if mortality is not ... preventable (SC-CAMLR-XXII, paragraph 5.230). Here, we undertake a risk assessment of the effects of ... block 58.4.1_6 in particular. We investigate the distribution of D. mawsoni and Macrourus spp. catch ...

   Meeting Document : WG-FSA-17/23 : Autor(es): D. Maschette, P. Burch, P. Yates and P. Ziegler

4. Short note on time series of Drake Passage Oscillation Index (DPOI) and its influence on environmental variability

   Abstract:  An assessment of the environmental processes influencing variability in the recruitment ... affects the Antarctic marine ecosystem as a whole. Naganobu et al. (1999) had assessed variability in ... krill recruitment and density in the Antarctic Peninsula area with an environmental factor; strength of ... westerly winds (westerlies) determined from sea-level pressure differences across the Drake Passage ...

   Meeting Document : WG-EMM-07/14 : Autor(es): M. Naganobu and K. Kutsuwada (Japan)

5. Fishing equipment, marine debris and oil associated with seabirds at Bird Island, South Georgia, 2003/04

   associated with seabirds at Bird Island, South Georgia from 1 April 2003 to 31 March 2004. It is the eleventh ... found in association with wandering albatrosses than with any other species, although the number has ... decreased substantially since last year. Grey-headed albatross collected the highest number of marine debris ... items, mostly small plastic fragments, of the study species. The quantity of fishing gear and ...

   Meeting Document : SC-CAMLR-XXIII/BG/16 : Autor(es): Delegation of the United Kingdom

6. Database of CCAMLR working documents

   documents contain major contributions to the work of CCAMLR and provide an important record of the history ... of scientific, political and administrative developments. While readily accessible within the ... has been discussed by Working Groups, and various requests have been made for the Secretariat to ... examine the feasibility of creating a database of CCAMLR working documents that could be indexed by ...

   Meeting Document : WG-EMM-02/8 : Autor(es): Secretariat

7. Marine debris and fishing gear associated with seabirds at sub Antarctic Marion Island – 1998/99

   Abstract:  Most (52%) of the 306 debris items found in association with seabirds at Marion Island ... , during the season May 1998 to April 1999, originated from the fishing industry. The most common items ... found were rope nooses (79) and fishing hooks (28), both originating from the Patagonian toothfish ... Dissostichus eleginoides longline industry. Wandering albatrosses Diomedea exulans took the highest proportion ...

   Meeting Document : SC-CAMLR-XVIII/BG/14 : Autor(es): Delegation of South Africa

8. SCAR-MARINE BIODIVERSITY INFORMATION NETWORK 2010 AND BEYOND

   Abstract:  Because of the unique context of the Southern Ocean, and the potential impact of Global ... , immediately accessible, and carefully checked. To answer this need, the SCAR Marine Biodiversity Information ... and open access to this information. The two main achievements of SCAR-MarBIN are the development of a ... , which aggregates the information on the web portal (90 datasets; 1,000,000 records). SCAR-MarBIN is ...

   Meeting Document : CCAMLR-XXVII/BG/35 : Autor(es): Delegation of Belgium

9. CCAMLR TAGGING PROGRAM

   Abstract:  In 2008 WG-FSA recommended that the Secretariat undertake to identify the tagging event ... details for all tags recovered (WG-FSA 2008 paragraph 3.55). The Secretariat has been able to verify the ... proportion of the tags that can now be linked to tagging events in exploratory fisheries (Table 1). The ... recapture linkage rate for rajids has been lower than for toothfish in Subareas 88.1 and 88.2. The linking ...

   Meeting Document : WG-SAM-09/04 : Autor(es): Secretariat

10. Echo integration in low signal to noise regimes: methods of noise estimation and removal

    Abstract:  The results of acoustic surveys, especially in low signal-to-noise regimes, are ... sensitive to the method used to exclude the contribution of background noise from the acoustic data. The use ... of thresholds to reject weak signals during data collection is inappropriate because the noise ... contribution to the above-threshold-signal cannot later be removed in post processing. The only solution is to ...

    Meeting Document : WG-EMM-97/74 : Autor(es): Higginbottom, I., Pauly, T.

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