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Beach debris survey – Main Bay, Bird Island, South Georgia 1999/2000
items collected in 1998/99, but is consistent with numbers in years prior to the 1998/99. A dramatic ... increase (310%) in the number of items collected over winter (April- September) from 41 items in 1998/99 to ... 168 items in 1999/2000 and a 40% increase in the number of items collected during summer reflect a ... Abstract: During the tenth year of standardised beach surveys of man-made debris at Bird Island ...
Meeting Document : SC-CAMLR-XX/BG/02 : Автор(ы): Delegation of the United Kingdom
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Modifications to the Generalised Yield Model: updated input of recruitment time series data and annual fishing selectivity functions
functions for different years in the assessment model. This is done in the usual way but with repeated input ... 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 ...
Meeting Document : WG-FSA-01/74 : Автор(ы): A.J. Constable (Australia)
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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 : Автор(ы): S.M. Kasatkina and P.S. Gasyukov (Russia)
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Chemical marking protocols for Antarctic starry skate age validation
skates brought into the boat for tagging during the 2019-20 skate tagging programme in the Ross Sea ... . Injections will be made intra-muscularly in the wings and/or the lateral tail base using a 1 ml auto-injector ... New Zealand prior to the 2019 fishery to encourage participation in this programme. Author(s): M ...
Meeting Document : WG-SAM-2019/10 : Автор(ы): M. Francis and S. Parker
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Species profile of mackerel icefish (Champsocephalus gunnari)
and became the target species of fisheries in many parts of the low-Antarctic from 1975 to 1990 ... ’s with annual catches of a few thousand tonnes in each of the two areas. Aspect of the biology and ... exploitation of the species have been summarized in Kock and Everson (2003) and Kock (2005). Additional ... information is scattered over various CCAMLR working papers of the last 15 years. The species profile collates ...
Meeting Document : WG-FSA-07/12 : Автор(ы): K.-H. Kock (Germany) and I. Everson (UK)
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Integration of CPUE data into assessments using the generalised yield model
Abstract: For the last 3 years, WG-FSA has accorded high priority to development of a method to ... integrate different indicators of stock status into assessments using the generalised yield model (GYM). In ... incorporating information on trends in standardised CPUEs into GYM assessments. The use of the method is ... illustrated using data for D. eleginoides in Subarea 48.3. As the method requires only very small adjustments ...
Meeting Document : WG-FSA-00/39 : Автор(ы): G. Kirkwood (United Kingdom) and A. Constable (Australia)
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Oil, paint, marine debris and fishing gear associated with seabirds at Bird Island, South Georgia, 1997/98
fishing gear associated with seabirds at South Georgia. In this, the fifth year of standardised recording ... , a marked increase in the quantity of plastic debris associated with seabirds was evident; quantities ... of fishing gear remained within the levels of previous years for all species (although the number of ... debris with black-browed albatross for the first time in this study. Author(s): Delegation of the United ...
Meeting Document : SC-CAMLR-XVII/BG/10 : Автор(ы): Delegation of the United Kingdom
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Collected data and stock assessment results for Notothenia squamifrons from Ob and Lena Banks, Division 58.4.4
, Division 58.4.4, are presented for the period from 1978 to 1990 split years. These data were used in VPA ... may be used in calculation of TAC which in accordance with our calculations should be 2.0 x 103 tonnes ...
Meeting Document : WG-FSA-92/05 : Автор(ы): A.K. Zaitsev and S.M. Pronenko (Ukraine)
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Comparison of NASC values calculated by swarm-based and grid-based acoustic data processing methods for Antarctic krill density estimation
four surveys in 48.1 fishing area were calculated using both the swarm-based and conventional grid ... -ASAM-2017 except that the dB difference window of Sv 120 kHz-Sv 38kHz is set 0 to 20 dB. And the two ... -based approach and grid-based approach based on data in the paper. In accordance to the suggestions ... , further analyses were undertaken and the results were shown in Appendix A. Author(s): X. Yu, X. Wang and ...
Meeting Document : SG-ASAM-18/04 Rev. 1 : Автор(ы): X. Yu, X. Wang and X. Zhao
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The fishery for Champsocephalus gunnari and its biology at Heard Island (Division 58.5.2)
periodic abundant year classes that can be followed through the population before disappearing in their ... Abstract: Commercial trawl fisheries in the modern era started within the Heard Island EEZ in ... between 1990 and 2000. Icefish abundance varies widely between years and the fishery is dependent on ... populations in the respective areas are mostly independent of one another. Author(s): R. Williams, E. van ...
Meeting Document : WAMI-01/04 : Автор(ы): R. Williams, E. van Wijk, A. Constable and T. Lamb (Australia)
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