Résultats de la recherche
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ESTIMATING THE SWEPT AREA OF DEMERSAL LONGLINES BASED ON IN-SITU VIDEO FOOTAGE
, the section of line visible to the camera swept sideways, interacting with sessile benthic organisms ... before leaving the seafloor. Based on an estimate of the rate of sideways movement, the total time ... sideways movement occurred before the line lifted off the seafloor, the total length of the line and the ... total time to retrieve the line, we estimate that up to 0.122 km2 of seafloor was swept by the line ...
Meeting Document : WG-FSA-08/58 : Auteur(s): D. Welsford and R. Kilpatrick (Australia)
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Research plan for the Spanish exploratory longline fishery for Dissostichus spp. in Divisions 58.4.1 and 58.4.2: preliminary results of stage 1 (2012/13 season)
Spanish bottom longline system. One depletion experiments was completed in each of the SSRU surveyed ... Abstract: The Spanish vessel Tronio started the research plan in the 2012/13 season using the ... (58.4.1H and 58.4.1G). Three prospecting-phase clusters of sets did not reach the established threshold to ... start the depletion. A prospective estimation of the local biomass (B LOC) of the two localized areas ...
Meeting Document : WG-SAM-13/30 : Auteur(s): R. Sarralde, L.J. López Abellán and S. Barreiro (Spain)
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Research program on resource potential and life cycle of Dissostichus species from the Subarea 88.2 A in 2015-2018
implementation of the previous research program took place in 2010-2012 fishing seasons and investigate resource ... program on resource potential and life cycle of Dissostichus species from the Subarea 88.2 A in 2015-2018 ... potential and life cycle of Dissostichus species within the eastern part of the Ross Sea over shelf and ... continental slope within the Subarea 88.2 A. Author(s): Delegation of the Russian Federation Title: Research ...
Meeting Document : WG-SAM-15/21 : Auteur(s): Delegation of the Russian Federation
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Developing a carbon-budget trophic model of the Ross Sea, Antarctica: work in progress
) Title: Developing a carbon-budget trophic model of the Ross Sea, Antarctica: work in progress Approval ... Abstract: We report on the development of a carbon-budget trophic-model of the Ross Sea. We ... provisionally defined the food web of the Ross Sea as having the following functional compartments: birds, seals ... column, ice, and benthic). The simple trophic model requires well over a hundred parameters, each of ...
Meeting Document : WG-EMM-05/18 : Auteur(s): M. Pinkerton, S. Hanchet, J. Bradford-Grieve and P. Wilson (New Zealand)
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Spatial distribution and population structure of juvenile Antarctic toothfish (Dissostichus mawsoni) in the South Shetland Islands (Subarea 48.1)
Abstract: In the present study we provide new insights on the spatial distribution and population ... structure of juvenile D. mawsoni caught during bottom trawl survey on the shelves around the South Shetland ... abundant between 100 and 300 m depth. The sampled population was composed of 150 specimens measuring ... estimated from the age-length keys, spanning from 10 to 5 cm TL. Present data have been discussed in ...
Meeting Document : WG-FSA-18/45 : Auteur(s): M. La Mesa, E. Riginella and C.D. Jones
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Preliminary assessment of mackerel icefish (Champsocephalus gunnari) for the Heard Island Plateau region (Division 58.5.2) based on a survey in May 2004
in the vicinity of Heard Island in May 2004 to provide the information for an assessment of short ... -term annual yield in the 2004/2005 CCAMLR season. This paper provides a preliminary assessment of yield ... Abstract: A survey of Mackerel Icefish, Champsocephalus gunnari,was undertaken in Division 58.5.2 ... using the assessment methods of CCAMLR for SAFAG 21. Author(s): C.R. Davies, T. Lamb, A.J. Constable ...
Meeting Document : WG-FSA-04/77 : Auteur(s): C.R. Davies, T. Lamb, A.J. Constable and R. Williams (Australia)
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Depth distribution and spawning pattern of Dissostichus eleginoides over the winter period in Subarea 48.3
Abstract: Trends in mean length and maturity stage of toothfish were examined using observer data ... statistically significant pattern of changing mean length at depth with month was found in both 1997 and 1998 ... from the 1998, 1997 and 1996 toothfish seasons. Toothfish are distributed down the shelf slope in ... . Examination of maturity data suggests that in addition to a major spawning event in late July/August, there ...
Meeting Document : WG-FSA-98/58 : Auteur(s): D.J. Agnew, K. Kerkieta, L. Heaps, C. Jones, J. Pearce and A. Watson (United Kingdom)
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Aspects of the distribution and interannual variations in larval fish assemblages at South Georgia, Antarctica
recorded from the whole Southern Ocean. Demersal forms predominate but many of these have extended early ... life histories as pelagic larval and juvenile phases. Only 30 larval stages of the 103 fish species ... occurring at South Georgia have been identified but these represent all of the dominant and economically ... important forms. The larval stages occur in succession throughout the year suggesting niche separation to ...
Meeting Document : WG-FSA-93/09 : Auteur(s): M.G. White (United Kingdom)
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Characterisation of Muraenolepis species by-catch in the CCAMLR Convention Area
: Characterisation of Muraenolepis species by-catch in the CCAMLR Convention Area Approval: Approved ... throughout the CCAMLR Convention Area. There are seven known species in the genus, but more work on the ... taxonomy of the group is needed and the number of species is uncertain. The few biological studies ... published suggest a relatively fast growing, semelparous, life history with a maximum age of 11 years. The ...
Meeting Document : WG-FSA-12/50 : Auteur(s): S. Parker, P. McMillan and P. Marriott (New Zealand)
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Summary of scientific observations in the CAMLR Convention Area for 2011/12
Division 58.5.2. This paper will be updated in full prior to the start of WG-FSA when all of the available ... Observers operating in the Convention Area on board longline and trawl fishing vessels during the 2011/12 ... season. Only data processed by the Secretariat up until 21 September 2012 has been used in this paper ... observations in the CAMLR Convention Area for 2011/12 Approval: Approved ...
Meeting Document : WG-FSA-12/66 Rev. 2 : Auteur(s): Secretariat