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Age determination of the Antarctic fishes Champsocephalus gunnari and Notothenia rossii from South Georgia
Abstract: Foremost in the elucidation of accurate population dynamics parameters in fish is a ... used annual rhythmic deposition in calcified tissues as time marks but, due ts the lack of distinct ... difficult. It is now possible to determine the age of fish through the utilization of daily increments in ... dynamics, investigations were performed on otoliths from the Antarctic fish Champsocephalus gunnari and ...
Meeting Document : SC-CAMLR-VI/BG/43 : Автор(ы): R. Radtke (USA)
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Diet composition and feeding strategy of Antarctic toothfish, Dissostichus mawsoni in SSRU 5841C-a for the exploratory longline fishery in 2012/13 of Korea
Abstract: The stocks of Dissostichus mawsoni in the Division 58.4.1 were vulnerable with a big ... information to assess the robust stocks and deliberate proper measurements for sustainable utilize, especially ... fishery managements. Therefore, the Korean scientists analyze diet composition and feeding strategy of ... Antarctic toothfish, Dissostichus mawsoni in SSRU 58.4.1.C-a as a part of Korean research plan for the ...
Meeting Document : WG-SAM-13/26 : Автор(ы): I. Yeon, Y.J. Kwon, S.G. Choi, K.J. Seok, D.W. Lee, J.M. Jeong, S.J. Ye, H.J. Kim and G.W. Baeck (Republic of Korea)
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A proposed observer logbook for the 2015 krill trawl fishery
Abstract: During 2013 the CCAMLR Scheme of International Scientific Observation (SISO) was ... ). The panel recommended a number of changes to the SISO observer logbooks to remove obsolete data ... collection practices, and streamline the forms for ease of use by CCAMLR observers. This paper summarises the ... proposed changes made in the draft 2015 observer logbook for the krill trawl fishery and its accompanying ...
Meeting Document : WG-EMM-14/28 : Автор(ы): Secretariat
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Comparison of bootstrap methods for assessment of mackerel icefish (Champsocephalus gunnari) in CCAMLR Statistical Subarea 48.3 based on the ground fish survey
Abstract: The existing bootstrap used in the assessment of icefish biomass in CCAMLR subarea 48.3 ... was compared to an alternative rescaled bootstrap to compare the performance of the methods. The ... differences between the method were small (less than 5%) except for slightly lower 5%iles in 2002 and 2004 in ... the rescaled bootstrap. Author(s): T. Earl and N. Fallon Title: Comparison of bootstrap methods for ...
Meeting Document : WG-SAM-17/36 : Автор(ы): T. Earl and N. Fallon
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Monitoring and managing the effects of environmental change on toothfish assessments
Abstract: This paper presents a ‘first-step’ proposal for CCAMLR to consider the effects of ... environmental conditions that are maintained over a number of years, which includes the effects of global ... climate change. The effects of environmental variability and change on toothfish population dynamics and ... productivity are largely unknown and are difficult to predict given our current understanding of the Southern ...
Meeting Document : WG-SAM-18/22 : Автор(ы): M. Pinkerton, A. Dunn, S. Mormede and S. Parker
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A revised Krill Trawl logbook for the 2019 season
Abstract: During the 2017 Scheme of International Scientific Observation workshop (WS-SISO), the ... data collection requirements for krill observers were discussed, with recommendations tabled in the WS ... -SISO Convener’s Report (SC-CAMLR-XXXVI/08) for amendments to the krill e-logbook used by SISO observers ... . This paper summarizes the changes to the e-logbook for proposed introduction in the 2019 season. Author ...
Meeting Document : WG-EMM-18/39 : Автор(ы): CCAMLR Secretariat
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A preliminary assessment for mackerel icefish (Champsocephalus gunnari) in Division 58.5.2, based on results from the 2018 random stratified trawl survey
Abstract: The annual random stratified trawl survey was undertaken in Division 58.5.2 in the ... , abundance and yield in Division 58.5.2 to the west of 79 o 20’ E using standard CCAMLR methods (CMIX and ... Generalized Yield Model). The 2018 survey showed a large 2+ cohort in the population. Catches of 443 t in the ... 2018/19 season and 320 t in the 2019/20 season respectively satisfied the CCAMLR decision rules. Author ...
Meeting Document : WG-FSA-18/56 : Автор(ы): D. Maschette and D. Welsford
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Weddell Sea MPA data layers have been deposited with the data publisher PANGAEA
Abstract: This paper informs EMM 2019 about the data layer products, which were developed for ... WSMPA spatial planning, and lists the DOIs to the respective PANGAEA entries. By depositing these data ... layers with PANGAEA, we provide transparency regarding the WSMPA development process and follow the ... discussion under CCAMLR about the need to make reference material on MPAs easily accessible to the scientific ...
Meeting Document : WG-EMM-2019/05 : Автор(ы): K. Teschke, H. Pehlke and T. Brey
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Continuation of multi-Member research on the Dissostichus mawsoni exploratory fishery in East Antarctica (Divisions 58.4.1 and 58.4.2) from 2018/19 to 2021/22
rules remain to be determined for these Divisions. WG-FSA-16/29 outlined the first multi-member ... toothfish exploratory fishery research plan up to 2017/18 for East Antarctica, which the Scientific ... Committee agreed was appropriate to achieve the research objectives (SC-CAMLR 2016, para. 3.244). Subsequent ... research progress including the evaluation of standard approaches to identify precautionary catch limits ...
Meeting Document : WG-FSA-2019/44 : Автор(ы): Delegations of Australia, France, Japan, Republic of Korea and Spain
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Estimating the abundance of pack-ice seals off east Antarctica
Abstract: A survey was undertaken to provide estimates of the abundance of crabeater, Ross and ... helicopters to estimate the density of seals hauled out on the ice in survey strips. The probability of ... -linked dive recorders were deployed on a sample of seals to estimate the probability of seals being ... hauled out on the ice at any time of day. Due to non-random placement of survey transects, model-based ...
Meeting Document : WG-EMM-05/23 : Автор(ы): C. Southwell (Australia), D. Borchers, C. Paxton (United Kingdom), B. de la Mare (Canada), P. Boveng (USA), A.S. Blix and E.S. Nordoy (Norway)
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