Résultats de la recherche
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Collection, processing and potential use of sonar data from krill fishing vessels
vessels. The purpose of this paper is to stimulate discussion on the utility of sonars to describe krill ... within a survey area and to consider the metrics (descriptors) we outline in the paper. We hope the ... outcome of our discussions will facilitate the use of sonar data collected from a variety of vessels and ... Abstract: Omnidirectional sonars (herein sonars) are capable of providing an alternative view of ...
Meeting Document : SG-ASAM-14/01 : Auteur(s): G. Skaret (Norway) and M.J. Cox (Australia)
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Lead-radium dating provides a framework for coordinating age estimation of Patagonian toothfish (Dissostichus eleginoides) between fishing areas
valid ages for juvenile to older adult groups, which were consistent with the counting of otolith growth ... revealed minor biases between the radiometric age and interpretation of growth zone counting for regional ... estimates range from approximately 20 to more than 50 years. In this study, lead-radium dating provided ... zones in transverse otolith sections, and longevity estimates exceeding 30 years. Lead-radium dating ...
Meeting Document : WG-FSA-11/P01 : Auteur(s): A.H. Andrews, J.R. Ashford, C.M. Brooks, K. Krusic-Golub, G. Duhamel, M. Belchier, C.C. Lundstrom and G.M. Cailliet
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plotImpact – software for producing image plots of spatially referenced impact assessments
Secretariat or CCAMLR Working Groups in the production of integrated bottom fishing impact assessments ... , including routine update of the circumpolar impact assessment originally described in SC-CAMLR-XXIX/4 ... Abstract: Software is presented for the automated production of standardised image plots of ... spatially referenced bottom fishing impact assessments. This software is submitted to WG-FSA to assist the ...
Meeting Document : WG-FSA-11/51 Rev. 1 : Auteur(s): D.N. Webber (New Zealand) and J.P. McKinlay (Australia)
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2019 Report to CCAMLR by Oceanites, Inc. – Antarctic Site Inventory / MAPPPD and Related Projects / State of Antarctic Penguins 2019 Report / Penguin Population Changes / Climate Analyses / Recent, Notable Scientific Papers
-EMM) Buffer zone analyses Re-analysis of gentoo penguin populations in the Antarctic Peninsula ... , including: • Results from the latest, 25th consecutive field season of the Antarctic Site Inventory ... within the Antarctic Treaty system and in CCAMLR Working Group on Ecosystem Monitoring and Management (WG ... Abstract: This report summarizes activities of Oceanites since CCAMLR-XXXVII and SC-CAMLR-XXXVII ...
Meeting Document : SC-CAMLR-38/BG/11 : Auteur(s): Submitted by Oceanites, Inc.
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Semi-empirical acoustic estimates of krill biomass derived from simulated commercial fishery data based on single-frequency acoustics
fishing seasons. From these data we develop semi-empirical indices of acoustic biomass in a Generalized ... the 3-frequency method using the CCAMLR protocol for the period between 1996 and 2011 in both the ... Elephant Island and West Shelf Areas of the US AMLR survey grid. Cross-validation of acoustic estimates ... US AMLR datasets and used to mimic data that might be collected by the commercial fishery during the ...
Meeting Document : SG-ASAM-12/04 : Auteur(s): A.M. Cossio, G.W. Watters, C.S. Reiss, J. Hinke and D. Kinzey (USA)
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Semi-empirical acoustic estimates of krill biomass derived from simulated commercial fishery data based on single-frequency acoustics
fishing seasons. From these data we develop semi-empirical indices of acoustic biomass in a Generalized ... the 3-frequency method using the CCAMLR protocol for the period between 1996 and 2011 in both the ... Elephant Island and West Shelf Areas of the US AMLR survey grid. Cross-validation of acoustic estimates ... US AMLR datasets and used to mimic data that might be collected by the commercial fishery during the ...
Meeting Document : SG-ASAM-15/03 : Auteur(s): A.M. Cossio, G.W. Watters, C.S. Reiss, J. Hinke and D. Kinzey (USA)
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Unmanned Aerial Vehicles based monitoring of indicator species populations on King George Island (Subarea 48.1)
study distribution and size of three Pygoscelis penguin species on King George Island (Subarea 48.1) in ... the austral summer 2014/15 season. During photogrammetric flights the high-resolution images of the ... compared with the results of measurements taken at the same time from the ground level. During expedition ... ) less than 5 cm. Precision estimation of individuals count was based on the photo interpretation of ...
Meeting Document : WG-EMM-15/48 : Auteur(s): M. Korczak-Abshire, A. Zmarz, R. Storvold, M. Rodzewicz, K. Chwedorzewska, A. Kidawa and A. Znój (Poland)
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BEACHED MARINE DEBRIS SURVEYS AND INCIDENCES OF SEABIRD/MARINE MAMMAL ENTANGLEMENTS AND HYDROCARBON SOILING AT BIRD ISLAND, SOUTH GEORGIA AND SIGNY ISLAND, SOUTH ORKNEYS, 2008-2009
/09 were below or just above the long-term mean for the majority of parameters measured. However, the ... ropes were the most commonly observed items (in varying quantities) during all three seasons at Bird ... Island, whereas high numbers (67 items; 59%) of packaging bands were collected at Signy Island during the ... at Bird Island, while one entangled fur seal was seen at Signy Island. In total, 147 items of marine ...
Meeting Document : WG-IMAF-09/09 : Auteur(s): C.M. Waluda (United Kingdom)
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Longline sink rates of an autoline vessel, and notes on seabird interactions
. Further trials were conducted with weights added to the longline as in normal fishing operations. A robust ... , and the design was refined during the voyage. The aerial section of the tori line appeared to provide ... an effective deterrent to most seabirds. Statistical analyses of the data from the line sink rate ... of the attached weights. Data on line sink rate and tori line coverage suggest that quicker line sink ...
Meeting Document : WG-FSA-01/44 : Auteur(s): N.W.McL. Smith (New Zealand)
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Lipid metabolism features of Antarctic toothfish Dissostichus mawsoni (Nototheniidae)
specimens of Antarctic toothfish Dissostichus mawsoni (Perciformes: Nototheniidae) caught in the Ross Sea ... are given. Blood plasma, tissues mesonephric kidney, liver and spleen were studied for the content of ... . Biochemical status of immune organs depending on the structural and functional characteristics of tissues was ... Antarctic toothfish Dissostichus mawsoni (Perciformes: Nototheniidae) caught in the Ross Sea are given ...
Meeting Document : WG-FSA-16/P02 : Auteur(s): I.I. Gordeev, D.V. Mikryakov, N.I. Silkina and A.S. Sokolova