Search results
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DEVELOPMENT OF A SPATIALLY EXPLICIT AGE-STRUCTURED STATISTICAL CATCH-AT-AGE POPULATION DYNAMICS MODEL FOR MODELLING MOVEMENT OF ANTARCTIC TOOTHFISH IN THE ROSS SEA
a preliminary development version of this model to Antarctic toothfish in the Ross Sea as an age and ... numbers of areas, and is implemented as a discrete time-step state-space model that represents a cohort ... product of a set of preference functions that are based on known attributes of spatial location. SPM was ... designed to be flexible, allow for the estimation of both population and movement parameters based on local ...
Meeting Document : WG-SAM-08/14 : Author(s): A. Dunn and S. Rasmussen (New Zealand)
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On maturity level of gonads of Antarctic toothfish Dissostichus mawsoni from the southern Ross Sea (Subarea 88.1) in December 2005–February 2006
Abstract: Data on length and gonad-weight distribution, maturity and gonadosomatic index (GSI) of ... Antarctic toothfish Dissostichus mawsoni were collected from Subarea 88.1 on board of the longliner “Yantar ... ” under Russian flag in the 2005/06 season. Our supposition is that the predominant part of Antarctic ... participation in spawning of the current year. Ovaries of the most females weighed less than 2.0 kg; average GSI ...
Meeting Document : WG-FSA-06/9 : Author(s): V.G. Prutko (Ukraine)
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Areal and seasonal extent of sea-ice cover off the northwestern side of the Antarctic Peninsula: 1979 through 1995
Abstract: Analysis of seasonal sea ice cover of a 1,250,000 km2 area off the northwestern side of ... multiple years is apparent. Annual curves of sea ice cover were integrated over time to produce an annual ... index of sea ice cover in units of 106 km2-months. Author(s): Hewitt, R.P. Title: Areal and seasonal ... extent of sea-ice cover off the northwestern side of the Antarctic Peninsula: 1979 through 1995 Approval ...
Meeting Document : WG-EMM-96/24 : Author(s): Hewitt, R.P.
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CPUE, net towing depth and body length of krill during the winter operation of Japanese krill fishery around South Georgia
Abstract: Monthly CPUEs during winter operation of Japanese krill trawlers around South Georgia ... were calculated. The range of CPUE values in 1991 season (poor year of krill) was comparable to the ... range of summer operation around Elephant Island and Livingston Island. Vertical distribution presumed ... season might be deeper than the summer season. Interannual variability of vertical distribution was also ...
Meeting Document : WG-EMM-96/51 : Author(s): Kawaguchi, S., Ichii, T., Naganobu, M.
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A glossary of terms relevant to the management of Vulnerable Marine Ecosystems (VMEs) in the CCAMLR Area
Abstract: In 2009 SC-CCAMLR identified a list of tasks to be considered intersessionally to ... significant adverse impacts on certain benthic habitats, termed Vulnerable Marine Ecosystems (VMEs). One of ... the identified intersessional tasks was to produce a glossary of terms relevant to the management of ... VMEs (SC-CAMLR XXVIII, paragraph 4.251(iii)). We propose a glossary of terms relevant to VMEs, for ...
Meeting Document : WG-EMM-10/29 : Author(s): B.R. Sharp and S.J. Parker (New Zealand)
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Survey results on abundance and biology of toothfish in Division 58.4.3b by Shinsei maru No.3 during 2006/07–2011/12 and proposal of the consecutive survey in 2012/13
information for the stock status and biology of toothfish in the Division 58.4.3b (Banzare Bank), using a ... Japanese commercial longline vessel Shinsei maru No. 3, during 2006/07 and 2011/12. Total number of hauls ... ranged from 22 to 148 during the six cruises. Total catch of Dissostichus spp. ranged from 9 to 108 ton ... but rarely occurred in the deeper areas > 1 400 m. Progressed stages of GMI and high GSIs for D ...
Meeting Document : WG-FSA-12/56 : Author(s): K. Taki, T. Iwami, M. Kiyota and T. Ichii (Japan)
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Spatial and temporal operation of the Scotia Sea ecosystem: a review of large-scale links in a krill centred food web
Abstract: The Scotia Sea ecosystem is a major component of the circumpolar Southern Ocean system ... Current (ACC) and waters from the Weddell–Scotia Confluence dominate the physics of the Scotia Sea ... phytoplankton blooms, which at times can cover an area of more than 0.5 million km2, probably result from the ... mixing of micronutrients into surface waters through the flow of the ACC over the Scotia Arc. This ...
Meeting Document : WG-EMM-07/P8 : Author(s): E.J. Murphy, J.L. Watkins, P.N. Trathan, K. Reid, M.P. Meredith, S.E. Thorpe, N.M. Johnston, A. Clarke, G.A. Tarling, M.A. Collins, J. Forcada, R.S. Shreeve, A. Atkinson, R. Korb, M.J. Whitehouse, P. Ward, P.G. Rodhouse, P. Enderlein, A.G. Hirst, A.R. Martin, S.L. Hill, I.J. Staniland, D.W. Pond, D.R. Briggs, N.J. Cunningham and A.H. Fleming (United Kingdom)
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A review of national observer training and education programs (Scheme of International Scientific Observation)
Abstract: At CCAMLR-XXV, the Scientific Committee noted that the implementation of the observer ... program and the application of observer requirements could be improved by adopting a standard approach to ... education and training for observers in these fisheries (SC-CAMLR-XXV, paragraph 2.11). A review of current ... levels of education and training for observers was undertaken by the Secretariat. Information provided by ...
Meeting Document : SC-CAMLR-XXVI/BG/09 Rev. 1 : Author(s): Secretariat
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Stock assessment of the Patagonian toothfish, Dissostichus eleginoides, harvested by the French fishery at Kerguelen Islands (Division 58.5.1 of the CCAMLR)
Abstract: A stock assessment of the Patagonian toothfish (Dissostichus eleginoides) at Kerguelen ... Island (division 58.5.1 of the CCAMLR) was undertaken with the modeling software CASAL, using different ... unit effort of the commercial fishery, tagging survey, sample size frequencies… CASAL is a simple ... population-modeling tool, applied to a single area and based on sex combination. The spatial complexity of ...
Meeting Document : WG-FSA-11/28 : Author(s): A. Relot-Stirnemann (France)
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Spatial and temporal distribution patterns of acoustic backscatter in the New Zealand sector of the Southern Ocean
Abstract: Mid-trophic level organisms (MTLO) of open-ocean marine ecosystems play a key role ... linking primary and tertiary consumers. Despite their importance, characterisation of MTLO is limited due ... from vessels of opportunity transiting across the Southern Ocean between New Zealand and the Ross Sea ... provided the opportunity to study distribution and abundance of MTLO over 7 yr. Analyses were performed to ...
Meeting Document : WG-EMM-18/P06 : Author(s): P.C. Escobar-Flores, R.L. O’Driscoll and J.C. Montgomery