Search results
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Developing a Ross Sea region medium-term data collection plan
Abstract: Data are collected for use in scientific research, the results of which are used ... to inform management decisions made to achieve specific goals. Any data collection plan should be drawn from ... of a specific data collection and research plan for the Subarea 88.1 and 88.2 fisheries (SC-CCAMLRXXVII ... term data collection plan. This paper provides context with a brief summary of recent science ...
Meeting Document : WG-FSA-10/32 : Author(s): S. Mormede and S. Hanchet (New Zealand)
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Assessing the accuracy of penguin breeding abundance estimates at regional scales in Antarctica from existing count data: a review using Adélie penguins as a case study
Abstract: There is a large body of existing count data in the literature for penguins ... at their breeding sites in Antarctica and the sub-Antarctic islands. These data have been summarised into several ... attempt to determine how the accuracy of regional scale abundance estimates derived from these data might ... data is developed and the assumptions underlying that estimator outlined. Existing data for Adelie ...
Meeting Document : WG-EMM-04/55 : Author(s): C. Southwell (Australia)
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Background for evaluation of the suitability of the software suite Large Scale Survey System (LSSS) for inspection and processing of acoustic data from krill fishing vessels
Abstract: The coordinated collection of acoustic data from the krill fishing fleet ... will potentially lead to large amounts of stored raw data of variable quality, which need to be scrutinised ... System (LSSS), which is designed for handling large amounts of acoustic data. Through example data from ... the krill fishing vessel ’Juvel’ it is here demonstrated that LSSS has flexible and efficient data loading ...
Meeting Document : SG-ASAM-14/02 Rev. 1 : Author(s): G. Skaret and R.J. Korneliussen (Norway)
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Information from repeat acoustic transects to inform feedback management strategies: data for SG-ASAM 2016
vessels is one approach to collecting data to inform within season feedback management schemes. However ... , a lack of sufficient data exists from which to examine its efficacy. In addition to the time/monetary ... commitment by fishing nations to collect such data, a time series of data, like that collected by the U.S ... approaches. In this paper I present some basic information from data collected by the U.S. AMLR Program along ...
Meeting Document : SG-ASAM-16/04 : Author(s): C.S. Reiss
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Krill Spill: An opportunistic approach to collecting penguin diet and krill length data
composition data through the A8 parameter of the CEMP program, due to concerns surrounding the invasive nature ... data collection methods as an alternate approach. Data on diet composition and krill length were ... . The krill length frequency of the krill spill sample was compared to data collected utilising the A8 ... standard methods. While the length frequencies were similar, more opportunistic data must be collected ...
Meeting Document : WG-EMM-18/45 : Author(s): E. Grilly, M. Santos, K. Reid and A. Silvestro
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Krill stock evaluation with data from commercial fishing vessels
Abstract: Commercial krill fishing vessels can provide useful data for science and management ... demonstrated. Here we show that acoustic data of good quality can be collected by observers on board during ... ’ in 2011 as example. A one-month subset of the acoustic data from February/March was processed within ... a time-frame of a week and linked to krill length data from the same period. The data from the fishing ...
Meeting Document : WG-EMM-12/63 : Author(s): G. Skaret (Norway), J. Moir Clark (United Kingdom), O.R. Godø, R.J. Korneliussen, T. Knutsen, B.A. Krafft and S.A. Iversen
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Influence of tag numbers, size of tagged fish, duration of the tagging program, and auxiliary data on bias and precision of an integrated stock assessment
Abstract: Using a modeling framework for toothfish population dynamics, fishing and data ... of a tagging program, the size of tagged fish, and the type of auxiliary data used in the assessment ... recaptures and maximise the likelihood of a robust assessment. (2) Using catch-at-age data instead of catch ... -at-length data substantially improved all assessment estimates and was required for adequately estimate ...
Meeting Document : WG-SAM-12/24 : Author(s): P.E. Ziegler (Australia)
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Evaluating length-frequency data and length-based performance indicators in new and exploratory fisheries
Abstract: Length-frequency data are routinely collected in CCAMLR’s fisheries and used as inputs ... in development and robust conclusions on stock status based on length-frequency data alone have been difficult ... . In this paper, we show that length-frequency data on their own have little inherent conclusive information about ... stock status. While length-frequency data can be useful in assessments when integrated with other more ...
Meeting Document : WG-FSA-10/43 : Author(s): P.E. Ziegler, D.C. Welsford and A.J. Constable (Australia)
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Research plan for the exploratory longline fishery for Dissostichus spp. in Divisions 58.4.1, 58.4.2 and Subarea 48.6 in 2014/2015 (including CTD data in 88.1, 88.2)
known well as namely the area is data poor areas. In the Division 58.4.1 there are two stocks; one ... which were not enough data to estimate stock biomass for considering the precautionary catch limit ... measures. Based on CCAMLR’s fishery report, the eastern area is still data-poor area showing low recapture ... rate. Consequently, providing catch and effort data from the area, analysing biological samples ...
Meeting Document : WG-SAM-14/21 : Author(s): Delegation of the Republic of Korea
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Using data recorded during commercial krill fishing in Feedback Management
Abstract: Feedback Management (FBM) requires adequate data that can be collected with a minimum ... statistical handling of the collected data into stock abundance information. Godø et al. (2015) (WG-EMM-15/13 ... ) show the inherent variability of catch and acoustic data collected during fishing operation ... . At the same time the data might inform about patterns in the ecosystem of importance to FBM. Similarly ...
Meeting Document : WG-EMM-16/74 : Author(s): O.R. Godø, G. Skaret and E. Niklitschek