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Research plan for the 2016/17 exploratory longline fishery of Dissostichus spp. in Division 58.4.2
Abstract: The current season (2015/16) is the first one of the second three-season research in ... reference area sizes. Understanding of the resource structure through clarification of their life history is ... essential to establish stock assessment and robust stock/ fisheries management of Dissostichus spp ... enhanced tagging program, and collection and analysis of biological data including otoliths and gonads to ...
Meeting Document : WG-SAM-16/05 : Автор(ы): Delegation of Japan
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Diet composition of Antarctic toothfish
determined. Sampling efforts were made during a longline survey of pre-recruit toothfish from commercial ... 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 ... Antarctic toothfish indicate they occupy same trophic position irrespective of the area, body size, sex, and ...
Meeting Document : WG-FSA-16/06 : Автор(ы): Delegation of the Republic of Korea
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Mesozooplankton distribution and community structure in the Pacific and Atlantic sectors of the Southern Ocean during austral summer 2017/18: a pilot study conducted from Ukrainian longliners
Abstract: Preliminary results of the pilot study of the mesozooplankton in the region between the ... were collected in the top 100 m water layer using vertical tows of the 0.1 m-2 Juday net from four ... seasonal and geographical zooplankton sampling coverage at the fraction of the cost of the full scale ... oceanographic surveys. The potential of such surveys are enormous in both providing invaluable information ...
Meeting Document : WG-FSA-18/19 : Автор(ы): E.A. Pakhomov, L.K. Pshenichnov, A. Krot, V. Paramonov, I. Slypkо and P. Zabroda
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Stock connectivity of Antarctic toothfish
, 48.4, 48.6, 88.1, 88.2 and 88.3, Divisions 58.4.1, 58.4.2 and 58.5.2, and the SPRFMO area north of ... toothfish samples were extracted and of these 547 were deemed to contain sufficient quantity and quality to ... be sequenced by Diversity Arrays to identify variable nucleotide SNPs sites. The analysis of SNPs ... indicated that the genetic structuring of Antarctic toothfish across the Southern Ocean is very weak. The ...
Meeting Document : WG-FSA-2019/P01 : Автор(ы): D. Maschette, S. Wotherspoon, A. Polanowski, B. Deagle, D. Welsford and P. Ziegler
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Computer program for the calculation and validation of Verhoeff check digits
type of errors in data for analysis are minimised. Accurate recording of the sequence numbers on tags ... at time of release and recapture form an important part of data accuracy. Check digits, as a part of ... the tag sequence number, can assist in the identification of errors in recorded data. A computer ... : Computer program for the calculation and validation of Verhoeff check digits Approval: Approved ...
Meeting Document : WG-FSA-SAM-05/11 : Автор(ы): A. Dunn (New Zealand)
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The diet of black-browed albatrosses at the Diego Ramirez Islands, Chile
Abstract: The diet of black-browed albatrosses was studied at Gonzalo Island, Diego Ramirez ... , Chile, during the early chick-rearing period of 2000, 2001 and 2002. Diet composition was determined by ... sampling chick stomach contents during January and February of each year. Reconstituted meal mass was ... mass). The distribution of the prey species indicates that black-browed albatrosses obtained the bulk ...
Meeting Document : WG-FSA-03/9 : Автор(ы): J. Arata (Chile) and J.C. Xavier (United Kingdom)
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The use of predator-derived krill length-frequency distributions to calculate krill target strength
ecosystem based approach to resource management. We propose a method using krill sampled from the diet of ... predators to provide a length-frequency distribution of krill at times when it is possible to run automated ... operations. This will allow a robust estimate of krill abundance to be estimated from acoustic data. Changes ... in the length-frequency distribution of krill over a period of few weeks produced a 10 % difference ...
Meeting Document : WG-EMM-00/42 : Автор(ы): K. Reid and A.S. Brierley (United Kingdom)
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An inter-laboratory comparison of ages estimated for Dissostichus eleginoides using otoliths
Abstract: To examine consistency between laboratories in age estimation of Patagonian toothfish ... , then grinding from the anterior and posterior sides of the otolith. Ages were estimated from the ... one reader from the National Institute of Water and Atmospheric Research, without auxiliary ... information: the readers generally read the sections similarly, with 84.7% of the estimates falling within two ...
Meeting Document : WG-FSA-99/56 : Автор(ы): J. Ashford (United Kingdom) and P. Horn (New Zealand)
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IMPROVING ESTIMATES OF ADÉLIE PENGUIN BREEDING POPULATION SIZE: DEVELOPING FACTORS TO ADJUST ONE-OFF POPULATION COUNTS FOR AVAILABILITY BIAS
priority for future work. This paper reports on the collection and development of adjustment factor data ... Abstract: It is widely recognised that the interpretation of counts of penguin populations at ... times within a breeding season to minimise bias in estimates of the breeding population has long been ... the collection of adjustment data. This was recognised at the recent Predator Survey workshop, where ...
Meeting Document : WG-EMM-09/38 : Автор(ы): C. Southwell, J. McKinlay, L. Emmerson, R. Trebilco and K. Newbery (Australia)
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Diet composition of Dissostichus eleginoides in Subarea 48.3, Dr Eduardo Holmberg survey March/April 1996
Abstract: A diet analysis of the patagonian toothfish Diissostichus eleginoides in the Subarea ... 48.3 in March/April 1996 was carried out by frequency of occurrence (F%) and coefficient "Q" ... ; (%) methods. The samples consisted chiefly of immature specimens, with predominant length ranges of 30-70 cm ... , although its importance was overestimated by the frequency of occurrence method. Cephalopods and mysids ...
Meeting Document : WG-FSA-96/29 : Автор(ы): Barrera-Oro, E., Marschoff, E., Casaux, R.
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