Résultats de la recherche

1. Design of the used on Russian vessels Sparta and Chio Maru No. 3 bottom trot-line for toothfish fishing

   less and when fish eats the bait and trying to get away making chaotic movements, it won`t be hooked by ... Abstract:  This work is prepared in accordance with recommendation of 4.18 WG-SAM-12 about ... submitting of data on fishing gears` construction that was used on Russian longliners Sparta” and “Chio Maru ... №3”. The trotline of a special design that was used is formed of main floating line and fastened ...

   Meeting Document : WG-FSA-12/22 : Auteur(s): I.G. Istomin, V.V. Akishin, V.A. Tatarnikov and I.I. Gordeev (Russia)

2. Echo integration in low signal to noise regimes: methods of noise estimation and removal

   requires that logged data have high resolution in both depth and distance. It can be applied so long as ... contribution to the above-threshold-signal cannot later be removed in post processing. The only solution is to ... kHz with a Simrad EK500 are presented to demonstrate the highly variable nature of background noise. A ... dynamic method to determine background noise for individual integration intervals was found to be better ...

   Meeting Document : WG-EMM-97/74 : Auteur(s): Higginbottom, I., Pauly, T.

3. Developing priority variables (“ecosystem Essential Ocean Variables” – eEOVs) for observing dynamics and change in Southern Ocean ecosystems

   ecosystems. Here, assessments are concerned with estimating status and trends in ecosystem properties ... , attribution of trends to causes, and predicting future trajectories. eEOVs should be feasible to collect at ... appropriate spatial and temporal scales and are useful to the extent that they contribute to direct estimation ... mammals and birds. We consider some of the spatial and temporal issues that will influence the adoption ...

   Meeting Document : WG-EMM-16/P11 : Auteur(s): A.J. Constable, D.P. Costa, O. Schofield, L. Newman, E.R. Urban Jr., E.A. Fulton, J. Melbourne-Thomas, T. Ballerini, P.W. Boyd, A. Brandt, W. de la Mare, M. Edwards, M. Eléaume, L. Emmerson, K. Fennel, S. Fielding, H. Griffiths, J. Gutt, M.A. Hindell, E.E. Hofmann, S. Jennings, H.S. La, A. McCurdy, B.G. Mitchell, T. Moltmann, M. Muelbert, E. Murphy, T. Press, B. Raymond, K. Reid, C. Reiss, J. Rice, I. Salter, D.C. Smith, S. Song, C. Southwell, K.M. Swadling, A. Van de Putte and Z. Willis

4. Results on by-catch of fish during Ukrainian, Polish and Japanese krill fishery in the South Orkney Islands, South Georgia and Shetland Islands areas

   South Georgia area (July to August, 1992) and Niitaka Maru to the north of the South Shetland Islands ... catch of juvenile fish occurred in hauls with the relatively low krill CPUE, and fish by-catch was not ... Polish and Japanese by-catch samples, and its estimated value of an arithmetic mean was 11541 ind./t ... krill and 34588 ind./t krill respectively. In the Ukrainian sample, most of by-catch juveniles were ...

   Meeting Document : WG-FSA-96/19 : Auteur(s): Cielniaszek, Z., Pakhomov, E.A., Iwami, T.

5. A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2003/04

   changes in the ice conditions and fleet composition, no two seasons have been the same. In 2001, 2003, and ... examined. The indicative catch limits appear to be little better than the catch limits set for the 2004 ... , the reported catch is confined to C2 data. The catch of D. mawsoni was 2414 t, and contributed 87% of ... , about 12 t of Patagonian toothfish (D. eleginoides) was taken, almost entirely from SSRU 881B. The main ...

   Meeting Document : WG-FSA-04/20 : Auteur(s): S.M. Hanchet, M.L. Stevenson, N.L. Phillips and P.L. Horn (New Zealand)

6. Assessment of Patagonian toothfish (D. eleginoides) in Subarea 48.3

   . Projections indicate that a constant catch of 2 600 tonnes in the 2017/18 and 2018/19 seasons would be ... consistent with the CCAMLR decision rule.   Author(s):  T. Earl and S. Fischer Title:  Assessment of ... Abstract:  Assessment of the Patagonian toothfish (D. eleginoides) in Subarea 48.3 indicates that ...

   Meeting Document : WG-FSA-17/53 : Auteur(s): T. Earl and S. Fischer

7. Assessment of Patagonian toothfish (Dissostichus eleginoides) in Subarea 48.3

   would be consistent with the CCAMLR decision rule. Author(s):  T. Earl Title:  Assessment of Patagonian ... Abstract:  Assessment of the Patagonian toothfish (D. eleginoides) in Subarea 48.3 indicates that ... recent years. Projections indicate that a constant catch of 2,420 tonnes in the 2020  and 2021 seasons ...

   Meeting Document : WG-FSA-2019/28 : Auteur(s): T. Earl

8. Otolith microstructure of juvenile fish, the first annulus radius and pelagic stage duration of icefish Champsocephalus gunnari (Channichthyidae) in the South Georgia area

   revealed that the period of eggs incubation and larvae hatching of the year-class 2000 – 2001 was about 4 ... represent a mixture of two year-classes of 1999-2000 and 2000-2001. The mean width of the daily growth zone ... resulting age-length ratio can be used in separation of adjacent year-classes during juvenile fish surveys ... attains 12.5-13.3 cm, with the age of 477 – 533 days, and the first annulus radius of 0.7 – 1.3 mm. It was ...

   Meeting Document : WG-FSA-03/75 Rev. 1 : Auteur(s): L.V. Shcherbich (Russia)

9. Decadal trends in abundance, size and condition of Antarctic toothfish in McMurdo Sound, Antarctica, 1972–2011

   then decreased. Fish length positively correlated with Ross Sea ice extent in early spring, a ... the study area. Fish condition positively correlated with the amount of open water in the Ross Sea ... during the previous summer (Feb), perhaps reflecting greater availability of prey with the higher ... productivity that more open water brings. Decreasing fish size corresponds to the onset of the fishery, which ...

   Meeting Document : WG-FSA-12/P04 : Auteur(s): D.G Ainley, N. Nur, J.T Eastman, G. Ballard, C.L Parkinson, C.W Evans and A.L. DeVries

10. Estimation of tag-loss rates for tagged fish in the Patagonian toothfish (Dissostichus eleginoides) fisheries at Heard Island and McDonald Islands in Division 58.5.2

    estimated following the method proposed by Adam & Kirkwood (2001). Tag-loss rates were generally low ... , with longline-caught and recaptured fish losing their tags quicker than trawl-caught and recaptured ... fish. With an initial tag-loss proportion of 2.8% and ongoing tag-loss rate of 0.056 in the longline ... -loss rate for longline varied strongly between time periods, with l = 0.007 for 2003-2006, l = 0.021 ...

    Meeting Document : WG-FSA-17/21 : Auteur(s): P. Ziegler

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