Résultats de la recherche

1. Results of scientific observation in Antarctic krill fishery in 2010/11: II. analysis of variability of krill size and fish by-catch

   ) incorporated in a state-space model that separates biological process error from fishery process error and ... observation error. The parameters of the model were estimated by the Markov chain Monte Carlo (MCMC) method in ... krill length model, some parameters did not converge well in the bycatch fish model. The interaction ... is no clear difference among cruises within a vessel. The uncertainty in parameter estimation is ...

   Meeting Document : WG-EMM-12/67 : Auteur(s): T. Okuda and M. Kiyota (Japan)

2. Population structure and connectivity of an important pelagic forage fish in the antarctic ecosystem, Pleuragramma antarcticum, in relation to large scale circulation

   of biological material in marine systems.  Large-scale transport by the Antarctic Circumpolar Current ... population structure in the Southern Ocean through advection.  Antarctic silverfish (Pleuragramma antarcticum ... other fish. We asked whether silverfish are distributed in independent, discrete populations along the ... populations.  Hypotheses were tested by measuring the chemistry, trace elements and stable isotopes, in ...

   Meeting Document : WG-FSA-12/23 : Auteur(s): J.W. Ferguson (USA)

3. Progress report on the Korean exploratory longline fishery for Dissostichus spp. in Divisions 58.4.1 and 58.4.2 in 2016/17 season

   Abstract:  The research fishing was conducted in Divisions 58.4.1 and 58.4.2 from 12 January 2017 ... to 14 March 2017 in 2016/17 fishing season. One additional national observer was on board to perform ... additionally satellite archival tags were attached to 5 individuals of D. mawsoni. In Divisions 58.4.1 and ... encountered unknown fishing gears during research fishing in SSRU G and E of the Division 58.4.1 and reported ...

   Meeting Document : WG-SAM-17/27 : Auteur(s): S.-G. Choi, J. Lee, J. Lee and D. An

4. Seabird mortality in the artisanal austral hake and Patagonian toothfish longline fisheries in southern Chile

   of incidental mortality for the artisanal fleets for Austral hake and Patagonian toothfish in ... longlines that sink fast: 0.33 and 0.69-0.22 m?sec-1 in the hake and toothfish longlines, respectively ... . Accordingly, seabird by-catch was 0.030 birds/1000 hooks in the Austral hake fishery, mainly accounted by ... birds caught during the slow process of hauling. The overall by-catch rate in the Patagonian toothfish ...

   Meeting Document : WG-FSA-04/54 : Auteur(s): C.A. Moreno, P. Rubilar, J. Arata, R. Hucke-Gaete (Chile) and G. Robertson (Australia)

5. Plan of research program of the Russian Federation in Subarea 48.5 (Weddell Sea) in season 2013/14

   subareas, where stock assessment should be carried out. In spite of hard ice conditions during most of the ... be found in geographical location, bathymetric profile and current system, highlight the Weddell Sea ... as one of the most promising area for exploratory fishery of Dissostichus sp. However, fishery in ... collecting data for reliable stock assessment and following estimation of precautionary limits in accordance ...

   Meeting Document : WG-FSA-13/09 : Auteur(s): A.F. Petrov, I.I. Gordeev and K.V. Shust (Russia)

6. Progress report on the Korean research fishing by longline fishery for Dissostichus spp. in Subarea 88.3 in 2015/16

   Abstract:  Korean research fishing was conducted in Subarea 88.3 from 8 February 2016 to 5 March ... 2016 in 2015/16 fishing season. The total number of days fished are 41 of 76 days stayed in the fishing ... statistics in Subarea 88.3 were 5.3 and 82%, respectively. Length frequency of D. mawsoni had two peaks and ... biological information of species in detail, otolith, stomach contents, gonad and muscle were collected from ...

   Meeting Document : WG-SAM-16/29 : Auteur(s): Delegation of the Republic of Korea

7. Otolith and body size relationships in the bigeye grenadier (Macrourus holotrachys) in CCAMLR Subarea 48.3

   bycatch in the Toothfish (Dissostichus eleginoides) fishery in subarea 48.3 were measured and weighed and ... . Seasonal variations in fish mass with reproductive condition need to be considered if predictions of mass ... population under investigation. The length of fish chosen in such studies should be representative of the ... :  Otolith and body size relationships in the bigeye grenadier (Macrourus holotrachys) in CCAMLR Subarea 48.3 ...

   Meeting Document : WG-FSA-01/39 : Auteur(s): S. Morley and M. Belchier (United Kingdom)

8. IN SITU MEASUREMENTS OF TILT ANGLE DISTRIBUTION AND TARGET STRENGTH IN ANTARCTIC KRILL (EUPHAUSIA SUPERBA)

   crucial for biomass estimates of the species, but in situ investigations regarding this are still very ... scarce. We conducted a field study in the Southern Ocean where one of the objectives was to acquire data ... South Georgia and the Bouvet Island and we here in part present the methods applied and give examples of ... presented in future reports. Author(s):  G. Skaret, S.A. Iversen, T. Knutsen, R.J. Korneliussen, E. Ona, R ...

   Meeting Document : WG-EMM-08/29 : Auteur(s): G. Skaret, S.A. Iversen, T. Knutsen, R.J. Korneliussen, E. Ona, R. Pedersen, A. Totland, T. Torkelsen (Norway) and X. Zhao (China)

9. Sensitivities in the assessment of the Patagonian toothfish (D. eleginoides) in Subareas 48.3 and 48.4 to truncation of tagging data

   Abstract:  The assessment of toothfish in CCAMLR subarea 48.3 currently uses the first four years ... of tag recaptures post release as input data, whereas the assessment in subarea 48.4 uses all ... available recapture data (excluding in-year recaptures). A theoretical analysis of the use of data from ... introduce bias into the assessment. Sensitivity tests on both stocks show that this bias occurs in practice ...

   Meeting Document : WG-SAM-17/35 : Auteur(s): T. Earl

10. Proposal for continuation of the Ukrainian research survey in Subarea 48.2 in 2017/18 and 2018/19 seasons

    Abstract:  The third year research survey of Ukraine in subarea 48.2 by the fishing vessel SIMEIZ ... is finished. Ukraine proposes to continue survey in same boundary in same design for the next 2 year ... . Author(s):  Delegation of Ukraine Title:  Proposal for continuation of the Ukrainian research survey in ... Subarea 48.2 in 2017/18 and 2018/19 seasons Approval:  Approved Secretariat Workflow Status:  Content ...

    Meeting Document : WG-SAM-17/26 : Auteur(s): Delegation of Ukraine

Pages