Search results
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The biology of the spiny icefish (Chaenodraco wilsoni Regan, 1914)
Abstract: The most abundant icefish species observed in catches off the northern tip of the ... . wilsoni has been exploited on a commercial scale from the late 1970’s to the end of the 1980’s off ... information on biological features and life history characteristics of C. wilsoni, based on research survey ... close to spawning. Spawning at the tip of the Antarctic Peninsula is likely to occur in October-November ...
Meeting Document : WG-FSA-07/P1 : Author(s): K.-H. Kock, L.V. Pshenichnov, C.D. Jones, J. Gröger and R. Riehl. (Polar Biol., 31 (3): 381–393 (2007))
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Variation in echosounder calibration with temperature and some possible implications for acoustic surveys of krill biomass
Abstract: Accurate estimation of krill biomass by acoustic techniques is dependant upon a number ... of factors including, fundamentally, accurate echo-sounder calibration. The Simrad EK500 scientific ... calibration parameters were to be employed on survey around South Georgia, and no account were taken of the ... in turn to an under-estimation of krill biomass by 52.5 %. Every effort should therefore be made to ...
Meeting Document : WG-EMM-97/52 : Author(s): Watkins, J.L., Woodroffe, P., Brierley, A.S., Goss, C.
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Demography of Antarctic krill in the Lazarev Sea (Subarea 48.6) in the 2005/06 season
were observed in the catches. Spatial distribution of krill density and size/age classes is discussed ... (R2), showing high values for both recruitment indices. New information is given on the development of ... maturity stages in the early phase of the spawning season. Author(s): V. Siegel (Germany) Title ... : Demography of Antarctic krill in the Lazarev Sea (Subarea 48.6) in the 2005/06 season Approval: Approved ...
Meeting Document : WG-EMM-06/10 : Author(s): V. Siegel (Germany)
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On peculiarities of icefish (Champsocephalus gunnari) vertical distribution in different habitats
Abstract: The significant similarity of Kerguelen and South Georgia icefish Ch.gunnari ... populations ecology has been revealed. Fish of all lengths and ages are planktonphages. Fish of the first two ... (Russia) and V.V. Herasimchuk (Ukraine) Title: On peculiarities of icefish (Champsocephalus gunnari ...
Meeting Document : WG-FSA-03/54 : Author(s): J.A. Frolkina (Russia) and V.V. Herasimchuk (Ukraine)
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A first attempt at an assessment of the Patagonian toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands EEZ
Abstract: The history of the fishery for Patagonian toothfish in the Prince Edward Islands EEZ is ... trend. Application of a simple age-structured production model provides robust indication that the ... spawning biomass has been depleted to at most a few percent only of its pre-exploitation level. Projections ... ) Title: A first attempt at an assessment of the Patagonian toothfish (Dissostichus eleginoides) resource ...
Meeting Document : WG-FSA-01/54 : Author(s): A. Brandão, B.P. Watkins, D.S. Butterworth and D.G.M. Miller (South Africa)
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Development of a generic operating model framework for data collection, assessment method and management strategy evaluations
framework will have a number of modules representing the fish population dynamics, harvest by fishing fleets ... with different gear types or metiers, sampling of data, stock assessment, and implementation of fishery ... management decisions. Author(s): P. Ziegler (Australia) Title: Development of a generic operating model ...
Meeting Document : WG-FSA-11/20 : Author(s): P. Ziegler (Australia)
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Development of a generic operating model framework for data collection, assessment method and management strategy evaluations
framework will have a number of modules representing the fish population dynamics, harvest by fishing fleets ... with different gear types or metiers, sampling of data, stock assessment, and implementation of fishery ... management decisions. Author(s): P.E. Ziegler (Australia) Title: Development of a generic operating model ...
Meeting Document : WG-SAM-11/13 : Author(s): P.E. Ziegler (Australia)
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PRELIMINARY ASSESSMENT OF TOOTHFISH IN SUBAREA 48.3
2006. Fits to the catch at age data are good, except for 2009 where large numbers of age 7 and age 9 ... lognormal recruitment suggest a long-term yield of 3900 t. Using a recent subset of estimated cohorts ... ASSESSMENT OF TOOTHFISH IN SUBAREA 48.3 Approval: Approved ...
Meeting Document : WG-FSA-09/28 Rev. 1 : Author(s): D.J. Agnew and T. Peatman (United Kingdom)
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CPUEs and body length of Antarctic krill during 1994/95 season in the fishing grounds around the South Shetland Islands
. Main fishing grounds were persistently formed in the north of Livingston Island throughout the season ... (except April), and around Elephant Island during April to May. CPUEs in the fishing to the north of ... Elephant Island Krill with a modal length of 48-50mm were dominant in catches, extreamly larger than the ... previous season. Author(s): Naganobu, M., Ichii, T., Kawaguchi, S. Title: CPUEs and body length of ...
Meeting Document : WG-EMM-96/47 : Author(s): Naganobu, M., Ichii, T., Kawaguchi, S.
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The diet composition and feeding intensity of mackerel icefish (Champsocephalus gunnari) at South Georgia in January/February 1994
Abstract: The diet composition and feeding intensity of mackerel icefish (Champsocephalus gunnari ... ) around Shag Rocks and the mainland of South Georgia was analyzed from 3,691 stomachs collected in January ... Antarctomysis maxima), and krill (Euphausia superba) in the vicinity of South Georgia and T. gaudichaudii and ... ) Title: The diet composition and feeding intensity of mackerel icefish (Champsocephalus gunnari) at ...
Meeting Document : WG-FSA-94/15 : Author(s): K.-H. Kock (Germany), I. Everson, L. Allcock, G. Parkes (United Kingdom), U. Harm (Germany), C. Goss, H. Daly (United Kingdom), Z. Cielniaszek and J. Szlakowski (Poland)