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1. CONDITIONING SMOM USING THE AGREED CALENDAR OF OBSERVED CHANGES IN PREDATOR AND KRILL ABUNDANCE: A FURTHER STEP IN THE DEVELOPMENT OF A MANAGEMENT PROCEDURE FOR KRILL FISHERIES IN AREA 48

   Abstract:  The updated version of the Spatial Multi-species Operating Model (SMOM) of krill ... -predator-fishery dynamics described in an accompanying paper is conditioned using the WG-SAM set of ... reference observations for Area 48 (the SAM calendar). Results are presented for two implementations of SMOM ... , one with the time series of krill abundance fixed on input, and the other incorporating an explicit ...

   Meeting Document : WG-EMM-08/44 : Автор(ы): É.E. Plagányi and D.S. Butterworth (South Africa)

2. Further calculations of the effects of krill fishing on predators

   random component in the relationship between krill biomass and availability. An examination of the ... consequences in the case of the blackbrowed albatross suggest that these other factors result in yet lesser ... resilience of the albatross population to the effects of a krill fishery. An approach for estimating the ... parameters of functional relationships between survival rates and krill biomass (or availability) is ...

   Meeting Document : WG-Krill-94/24 : Автор(ы): D.S. Butterworth and R.B. Thomson (South Africa)

3. Estimation of the biomass of krill in Prydz Bay during January/February 1991 and February/March 1992 using echo integration

   Abstract:  Hydroacoustic surveys of the abundance of krill (Euphausia superba) in the Prydz Bay ... association of krill with the shelf break in the western part of the survey area but also found that the shelf ... break was in general not a region of relatively high krill abundance. The mean surface density of krill ... estimates of 1.95, 3.45 and 1.78 g/m2 for statistical areas 48.1, 48.2 and 48.3 (SC-CAMLR 1991, p47) but ...

   Meeting Document : WG-KRILL-92/23 : Автор(ы): I. Higginbottom and T. Pauly (Australia)

4. Results of scientific observation in Antarctic krill fishery in 2010/11: I. state of observer deployment and data collection

   Abstract:  We analyzed the 2010/11 krill observer data to confirm the outcome of recent revisions ... of krill observation scheme. This paper summarizes the status of observer deployment, sampling ... , the coverage of krill biological sampling for hauls and the number of krill sampled for biological ... current state of data collection, mere extension of the observer coverage may not result in the ...

   Meeting Document : WG-EMM-12/65 : Автор(ы): M. Kiyota and T. Okuda (Japan)

5. Exploration of CPUE standardisation variances in the Ross Sea (Subareas 88.1 and 88.2A South of 70°s) Antarctic toothfish (Dissostichus mawsoni) exploratory longline fishery

   Abstract:  Catch rates or catch per unit of effort (CPUE) are used for data-poor exploratory ... interim of collecting sufficient tag recaptures. Here, we address the two questions: (1) which unit of ... such as gear type, vessel, fishing season, month, bait, fishing depth and area affect estimates of ... trend and magnitude of catch rates. Using data from the Ross Sea Antarctic toothfish fishery, we ...

   Meeting Document : WG-SAM-2019/25 : Автор(ы): D. Maschette, S. Wotherspoon and P. Ziegler

6. Estimation of the biomass of krill in Prydz Bay during January/February 1991, February/March 1992 and January/ February 1993 using echo integration

   Abstract:  Hydroacoustic surveys of the abundance of krill (Euphausia superba) in the Prydz Bay ... surveys indicated some association of krill with the shelf break in the western part of the survey area ... and the centre of the Prydz Bay region but also found that the shelf break was in general not a region ... of relatively high krill abundance. The mean surface density estimates of krill in 1991, 1992 and ...

   Meeting Document : WG-Krill-94/21 : Автор(ы): T. Pauly and I. Higginbottom (Australia)

7. The distribution pattern and fishery for the Antarctic krill (Euphausia superba) off the Wilkes Land and Balleny Islands (with notes on the application of CPUE data as indices of krill abundance)

   Abstract:  Hydrological conditions, the distributiion pattern of krill and characteristics of the ... variability of some CPUE indeces (TC/TH/PPST; TC/TFISHT; TC/TFISHT/PPST) is analysed on the basis of data ... °- 150° E) are likely to be. an area of regular occurence of krill concentrations, probably the frequency ... of their occurence is the highest in the whole East Indian and West Pacific Anrarctic. This seems to ...

   Meeting Document : WG-KRILL-90/16 : Автор(ы): V.N. Dolzhenkov, E.A. Kovalev, V.A. Spiridonov, V.P. Timonin, I.A. Zhigalov (USSR)

8. Results of the research for the exploratory longline fishery for Dissostichus spp. in SSRUs C and E in Division 58.4.1 in 2012/13 of Korea

   Abstract:  In the Division 58.4.1 there are two stocks of Dissostichus mawsoni; one extends from ... vulnerable with a big range of about 1,000-2,000 t per SSRU in 58.4.1. However, there is not enough data and ... cooperatively the research plan for the exploratory longline fishery for Dissostichus spp. in SSRUs of 58.4.1 C ... because of the harsh sea condition, even though the plan was set to conduct in 58.4.1 C-a and C-b, and E-a ...

   Meeting Document : WG-SAM-13/28 : Автор(ы): I.J. Yeon, Y.J. Kwon, D.W. Lee, S.G. Choi, and K.J. Seok (Republic of Korea)

9. Alternative method of the age composition assessment on the basis of surveys length data using mixture distributions

   Abstract:  On the basis of the bottom trawl surveys carried out by Russia and Great Britain during ... bootstrap method result in different estimates of mean fish density in the length series. Verification of ... the hypothesis of non-zero observations lognormal distribution for a large number of length groups ... casts doubt on the correctness of the first method application and therefore also of the method by de la ...

   Meeting Document : WG-FSA-05/78 : Автор(ы): P. Gasyukov (Russia)

10. Review of biological characteristics of the Antarctic toothfish (Dissostichus mawsoni) and its distribution in Antarctic waters

    Abstract:  Results of published studies on the biology, biomass and distribution of the Antarctic ... toothfish (Dissostichus mawsoni) were reviewed. The review focused on those aspect of the species which are ... of importance for the assessment of its biomass and identification of its stocks. The trophodynamics ... of D. mawsoni are mentioned only in brief. Most published materials refer to studies conducted in the ...

    Meeting Document : WG-FSA-98/37 : Автор(ы): Secretariat

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