Search results
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Short note: Time series of Drake Passage Oscillation Index (DPOI) during 1952-2008 and its possible influence on environmental variability
Abstract: An assessment of the environmental processes influencing variability in the recruitment ... and density of Antarctic krill (Euphausia superba DANA) is important as variability in krill stocks ... 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 ...
Meeting Document : WG-EMM-08/33 : Author(s): M. Naganobu, J. Kondo and K. Kutsuwada (Japan)
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Comparison of age readings by two otolith preparation techniques and readers
were exchanged between Russia and New Zealand ageing programmes to compare consistency in ages ... resulting four-way comparison enabled differences in preparation method to be distinguished from differences ... in interpretation of otolith banding patterns. Results suggest broad agreement in ages determined by ... each reader and with each method. However, there were enough inconsistencies in preparation technique ...
Meeting Document : WG-FSA-14/53 : Author(s): S.J. Parker (New Zealand), A.F. Petrov (Russia), C.P. Sutton (New Zealand) and E.N. Kuznetsova (Russia)
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Diet composition of Antarctic toothfish
Abstract: To identify the important prey items for pre-recruit Antarctic toothfish in the SSRUs ... fishing vessel. In the previous studies, similarities in total FA compositions and the FA profiles in ... muscle tissue of Antarctic toothfish, bycatch specimen and icefish in the stomachs indicated a trophic ... connection between the toothfish and icefish. In this study, similarities in the δ13C values δ15N values of ...
Meeting Document : WG-FSA-16/06 : Author(s): Delegation of the Republic of Korea
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ACOUSTIC IDENTIFICATION AND SIZE ESTIMATION OF EUPHAUSIIDS
Abstract: Fishery for krill is a major economical activity in the Antarctic Ocean. The increased ... resources in the southern ocean. During the International Polar Year 2008, RV “G.O. Sars” spent 3 months in ... behaviour, measure target strength in situ, and of course verify the acoustic measurements biologically ... implemented in an optimized framework in the post-processing system LSSS. Author(s): R. Korneliussen and G ...
Meeting Document : SG-ASAM-09/08 : Author(s): R. Korneliussen and G. Skaret (Norway)
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Diseases and parasites of penguins
Abstract: The study of diseases in wild penguins is important for the identification of endemic ... diseases and the detection of exotic diseases should these occur. It is also important in the understanding ... and parasites recorded for all species of penguins present both in the wild and in captivity. Normal ... values for blood biochemistry and haematology are given as an aid to the identification of illness in ...
Meeting Document : WG-CEMP-94/35 : Author(s): J. Clarke and K. Kerry (Australia)
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Modifications to the Generalised Yield Model: updated input of recruitment time series data and annual fishing selectivity functions
series from survey data for each value of natural mortality used in the assessments, whenever it is ... altered over the range of uncertainty in M factored into the assessment process. Data from outputs from ... mixture analyses from surveys are input to the GYM in raw form. An example file is provided. Consequently ... inputting to the GYM. In addition, provision is now made for inputting different fishing selectivity ...
Meeting Document : WG-FSA-01/74 : Author(s): A.J. Constable (Australia)
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KRILL FISHERY REPORT: 2008 UPDATE
for krill in Area 48 in the 2007/08 season, and these vessels have taken 84110 t of krill to date. The ... 104586 t of krill reported in the STATLANT data for 2006/07. With the exception of Poland, all ... ; Consideration of the Conservation Measures in force in the fishery. Reference information on stock and areas ... , and parameters used in stock assessment are also included. Author(s): Secretariat Title: KRILL ...
Meeting Document : WG-EMM-08/05 : Author(s): Secretariat
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Assessment of fishable krill biomass on the basis of the acoustic surveys results using geostatistical methods
Abstract: ABSTRACT Applicability of geostatistical methods in processing the acoustic fields of ... usefulness of these methods in studying the structure of krill density field for biomass assessment in ... compliance with different thresholds of their fishery importance. The structure of krill density field in ... Subarea 48.3 based on the surveys 2000 and 2002 indicates that krill fishable biomass is concentrated in ...
Meeting Document : WG-SAM-10/07 Rev. 1 : Author(s): S.M. Kasatkina and P.S. Gasyukov (Russia)
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Fishery monitoring and closure procedures
interpretation and application of procedures to monitor and forecast closures in CCAMLR fisheries in the 2018/19 ... season. Key issues in applying the procedures, and specific instances which resulted in catch over-runs ... and under-runs in certain circumstances are examined. Author(s): CCAMLR Secretariat Title: Fishery ...
Meeting Document : CCAMLR-38/BG/12 : Author(s): CCAMLR Secretariat
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Update of the integrated stock assessment for the Patagonian toothfish (Dissostichus eleginoides) for the Heard and McDonald Islands (Division 58.5.2)
uncertainty about annual estimates but given this caveat they are useful in tracking observed and CASAL ... -estimated trends in catch rates. A change of substantial consequence from the 2009 integrated assessment was ... . Neither of these values of M was estimated in CASAL but the value of 0.155 was estimated externally to ... CASAL from catch-at-age and aged mark-recapture data as described in Candy et al. (2011). The ...
Meeting Document : WG-FSA-11/24 : Author(s): S.G. Candy and D.C. Welsford (Australia)