Search results
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Fishing for structure; can we describe normal patterns in toothfish fishing operations using catch and effort data?
toothfish in CCAMLR fisheries and link those steps to the variables recorded as part of the CCAMLR catch and ... effort data reporting system. We then describe statistical properties of the recorded variables and how ... more difficult to evaluate given the wide range of influences that may affect recorded values for a ... given parameter. There are strong functional relationships identified between some of the variables. For ...
Meeting Document : WG-FSA-16/36 : Author(s): J.M. Fenaughty and K. Large
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Proposal for a longline survey on toothfish in Statistical Subarea 48.6 in 2017/18
patterns and improve estimation of population characteristics and thereby contribute to the development of ... spatial population models and assessments in support of management advice. Additional outcomes of the ... research relate to mapping the bathymetry of the fishable area, documenting relative abundance of ... , and collecting information on distribution, relative abundance, and life history of bycatch species ...
Meeting Document : WG-FSA-17/61 Rev. 1 : Author(s): Delegation of Norway
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Squeezed from both ends: Decline in Antarctic fur seals in the South Shetland Islands driven by both Top–down and Bottom–up processes
Abstract: Understanding the relative contributions of different sources of mortality and survival ... in predator populations can improve ecosystem models and management of marine ecosystems. Within the ... . This has led to an under emphasis of the role of bottom-up drivers for controlling fur seal production ... provided as an indicator of bottom-up drivers and we contrast these with early season neonate mortality and ...
Meeting Document : WG-EMM-14/39 : Author(s): M.E. Goebel and C.S. Reiss (USA)
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Admiralty Bay (South Shetland Islands) - long-term marine monitoring program
vulnerable region of Western Antarctic. It is widely assumed that Antarctic biota are sensitive to ... the site of comprehensive environmental studies over the last 30 years and existing data sets provide ... the opportunity for long-term comparisons, and recognition of any ecosystem changes, and potential ... predictions of future change. Comparison of the collected data with the archive data sets will allow us to ...
Meeting Document : WG-EMM-15/47 : Author(s): A. Panasiuk-Chodnicka, M. Korczak-Abshire, M.I. Żmijewska, K. Chwedorzewska, E. Szymczak, D. Burska, D. Pryputniewicz-Flis and K. Łukawska-Matuszewska (Poland)
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Proposal for a longline survey on toothfish in Statistical Subarea 48.6 in 2017/18
improve estimation of population characteristics and thereby contribute to the development of spatial ... population models. Additional outcomes of the research relate to mapping the bathymetry of the fishable area ... , documenting relative abundance of Patagonian and Antarctic toothfish, tagging toothfish for biomass estimation ... life history of bycatch species. Author(s): Delegation of Norway Title: Proposal for a longline ...
Meeting Document : WG-SAM-17/06 : Author(s): Delegation of Norway
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Empirically-driven feedback management incorporating multi-scale risk assessment and an experimental framework to facilitate adaptive improvement
al. 2016), and recently a more empirical approach using a combination of fishing fleet-collected ... merit in terms of the utility of available data. However, none currently offers a holistic solution in ... aspects of each currently tabled approaches from RA, EF, DR and EMP into potentially one that can be ... developed to become relatively easy and quick to operationalize. Finally, we propose a package of work that ...
Meeting Document : WG-EMM-2019/18 : Author(s): A.D. Lowther, B. Krafft, O.R. Godø, C. Cardenas, X. Zhao and O.A. Bergstad
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CCAMLR Observer Training Program Accreditation Scheme (COTPAS) Technical Peer Review Group (TPRG) comments on the Australian Observer Programme Submission for COTPAS Accreditation
Abstract: The outcomes of the TPRG e-group report for the Australian COTPAS submission of its ... scientific observer training are presented. The report indicated that the information provided for each of ... Committee endorse the outcome of the report and consider how an Accreditation Review Panel should be ... established. Author(s): Chair of the Scientific Committee Title: CCAMLR Observer Training Program ...
Meeting Document : SC-CAMLR-XXXIV/BG/23 : Author(s): Chair of the Scientific Committee
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CCAMLR-IWC Export Group Report: Primary Productivity and Phytopalnkton
SeaWiFS and MODIS sensors that have been providing data for the last ten years. The characteristics of ... their use in the Southern Ocean. A brief history of algorithms linking ocean color to primary ... regional, carbon-based approaches. Using monthly climatologies of SeaWiFS chlorophyll, a phenology of ... phytoplankton blooms is presented for the major provinces surrounding Antarctica. Some of the published ...
Meeting Document : CCAMLR-IWC-WS-08/13 : Author(s): Matear, R., Mongin, M., Lovenduski, N., Strutton, P.
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Change-in-ratio and index-removal methods for population assessment and their application to snow crab (Chionoecetes opilio)
composition, in order to use these methods. We use the methods to estimate the population of legal-size snow ... of pre-recruits but this requires the assumption of equal catch ability of all animals, a condition ... seem to be ideally suited for studies of many populations of large crustaceans. Author(s): X. Xu, E.G ...
Meeting Document : WS-CRAB-93/10 : Author(s): X. Xu, E.G. Dawe and J.M. Hoenig (USA)
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The krill distribution in waters around the South Shetland Islands: Preliminary results from an acoustic survey conducted by a Chinese krill fishing vessel in December 2013
data for the estimation of krill stock and its management. In December 2013, a trial acoustic survey ... Islands. Krill was found in most part of the survey area. The mean Sv of krill swarm tend to be higher in ... inshore waters in the north of the islands; however, no such tendency was observed in the Bransfield ... strait. The majority of the krill swarms were found in the upper 100 m with a thickness less than 30 m ...
Meeting Document : WG-EMM-14/47 : Author(s): X. Wang, X. Zhao, G. Qi, T. Zuo, J. Zhu, J. Zhang and X. Li (People’s Republic of China)