Résultats de la recherche
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The structure and spatial distribution of Antarctic krill aggregations from acoustic observation in the South Georgia area
parts of South Georgia area. The boundary between two areas is located at about 37°30/ W. It is shown ... distribution, will be very important both to fishery and to dependent species, Author(s): S.M. Kasatkina ...
Meeting Document : WG-EMM-04/66 Rev. 1 : Auteur(s): S.M. Kasatkina (Russia)
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KRILL FISHERY BEHAVIOUR IN THE SOUTHWEST ATLANTIC
through the analysis was 15-30 tonnes/haul, which is higher than the 1980s information (5-10 tonne/haul ... tows were 10-15 nm, which is the scale of a single concentration. However, there was considerable year ... to year variability in the probabilities of operating within a local range after a number of tows. In ... /operational requirements in an area. These kinds of analysis show the importance of good year-round data from ...
Meeting Document : WG-EMM-08/39 : Auteur(s): S. Kawaguchi (Australia)
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Activity, seasonal site fidelity, and movements of Type-C killer whales between the Ross Sea, Antarctica and New Zealand
, TCKW have been identified as one of the two top predator species in the Ross Sea most likely to be ... Abstract: We present definitive evidence, derived from two independent methods (satellite tagging ... Zealand waters and into subtropical regions (31°-35°S). This not only establishes ecosystem connectivity ... IWC SORP and CCAMLR. Author(s): R. Eisert (New Zealand), G. Lauriano, S. Panigada (Italy), E.N ...
Meeting Document : WG-EMM-15/52 : Auteur(s): R. Eisert (New Zealand), G. Lauriano, S. Panigada (Italy), E.N. Ovsyanikova, I.N. Visser, P.H. Ensor, R.J.C. Currey, B.R. Sharp and M.H. Pinkerton (New Zealand)
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An assessment of the impact of krill fishery on penguins in the South Shetlands
-20 day), the present catch rate (≤10 x103t/10-day) is smaller by one or more orders of magnitude ... . Author(s): T. Ichii, M. Naganobu and T. Ogishima (Japan) Title: An assessment of the impact of krill ...
Meeting Document : WG-KRILL-93/07 : Auteur(s): T. Ichii, M. Naganobu and T. Ogishima (Japan)
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DEVELOPING FOUR PLAUSIBLE PARAMETERISATIONS OF FOOSA (A SO-CALLED REFERENCE SET OF PARAMETERISATIONS) BY CONDITIONING THE MODEL ON A CALENDAR OF EVENTS THAT DESCRIBES CHANGES IN THE ABUNDANCES OF KRILL AND THEIR PREDATORS IN THE SCOTIA SEA
abundance, one or two stock-recruitment parameters for each predator population to the numerical calendar ... calendar would be feasible. Second, we tuned, via sums of squares, one stock-recruitment parameter for each ... most of this paper, we found a small error in the initial conditions used in one of our four ... effort to conduct a risk assessment using the reference set. Author(s): G.M. Watters, J.T. Hinke (USA ...
Meeting Document : WG-EMM-08/13 : Auteur(s): G.M. Watters, J.T. Hinke (USA) and S. Hill (United Kingdom)
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Assessment of krill biomass in fishing grounds using the data on fishing intensity and hydroacoustic method
midwater trawl. Two methods were used for this purpose: modelil1ing the probabilistic-statistical theory of ... enough as multiple echo location of one and the same shoal is actually out of the question because of ... fishing trawls in order to illustrate the closeness of the two methods. The estimates of the krill biomass ... senior scientist Myskov A.S. Author(s): USSR Title: Assessment of krill biomass in fishing grounds ...
Meeting Document : SC-CAMLR-VIII/BG/10 : Auteur(s): USSR
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A comparison of acoustic targets at South Georgia and the South Orkney Islands during a season of profound krill scarcity
signal strength between the two frequencies (δMVBS = MVBS 120 kHz- MVBS 38 kHz) was used to partition ... density; for example one echo-integration interval contained 104 times the mean krill density. An ... approximate six-fold difference in mean krill abundance was detected between the two areas, but in comparison ... contained large numbers of small zooplankton such as the amphipod Themisto gaudichaudii. Author(s): Watkins ...
Meeting Document : WG-EMM-95/75 : Auteur(s): Watkins, J.L., Brierley, A.S.
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WG-FSA-02
/2 List of participants WG-FSA-02/20 Some biological characteristics of Antarctic fish stocks in the ... List of documents WG-FSA-02/30 Progress report on attempts to conduct an experiment on the ... -FSA-02/73 Rev. 1 Food and feeding of two Channichthyids, Champsocephalus gunnari and Chaenocephalus ... species profiles – toothfish I. Everson (United Kingdom) WG-FSA-02/80 Subgroup on Assessment Methods ...
Meeting
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Research plan for the 2016/17 exploratory longline fishery of Dissostichus spp. in Subarea 48.6 by South Africa and Japan
and preliminary CASAL models. We divided the two areas for block 48.6_2 by latitude of 55.2°S to ... abnormal data for the two vessels in block 48.6_2, therefore we removed the data for the current analysis ... addition, we considered that only recaptures for 1 year at liberty is effective to estimate the ... . We estimated predicted numbers of recaptures in the next three years using present catch limit and ...
Meeting Document : WG-SAM-16/07 : Auteur(s): Delegations of Japan and South Africa
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Preliminary assessment of Dissostichus eleginoides on the Heard Island Plateau (Division 58.5.2) based on a survey in April–May 2003
of the length distribution of the catches suggest that the two gears sample a similar range of sizes ... length at age vector that did not include growth beyond 15 years had only small effects on projected long ... estimate for 2004 was 2,680 t. Initial tests of length at age assumptions indicated that using a specified ... of growth beyond this age at 58.5.2. Preliminary examinations of the effect of refinements to the ...
Meeting Document : WG-FSA-03/33 : Auteur(s): A.J. Constable, C.R. Davies, R. Williams and T. Lamb (Australia)