Résultats de la recherche

1. Variation of ice edge position in western part of Atlantic sector of the Antarctic

   Abstract:  Satellite imagery of the pack ice edge position in western part of the Atlantic sector ... temporal variation in the area between 65° and 20°W. Amplitude of the seasonal variation of the ice edge ... change of positive and negative anomalies in ice conditions in winter and summer. Velocities of retreat ... means ice edge position was observed to shift over the current decade to the south to the Scotia Sea in ...

   Meeting Document : SC-CAMLR-VIII/BG/49 : Auteur(s): Delegation of USSR

2. Spatial and seasonal distribution of adult Oithona similis in the Southern Ocean: predictions using boosted regression trees

   of the cyclopoid copepod Oithona similis in the Southern Ocean. Nearly 20 000 samples from the ... probability of detection (presence) and relative abundance of adults of this zooplankton species in surface ... ) of adult O. similis between November and March in much of the Southern Ocean. No investigation was ... conditions in a broadly similar way throughout the Southern Ocean. Compared to a compilation of nethaul data ...

   Meeting Document : WG-EMM-10/P14 : Auteur(s): M.H. Pinkerton, A.N.H. Smith, B. Raymond, G.W. Hosie, B. Sharp, J.R. Leathwick and J.M. Bradford-Grieve

3. A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2009/10

   Abstract:  The exploratory fishery for Dissostichus spp. Has now been operating for 14 years in ... Subarea 88.1 and for 9 years in Subarea 88.2. This report summarises the timing, depth, and location of ... 2009–10. During the 2009–10 fishing year most of the catch in Subarea 88.1 came from the slope SSRUs ... 881H and 881I, with a reduced catch from 881K due to ice conditions. The catch limit in the north was ...

   Meeting Document : WG-FSA-10/23 : Auteur(s): S.M. Hanchet, M.L. Stevenson and A. Dunn (New Zealand)

4. Revised research plan for the 2015/16 exploratory longline fishery of Dissostichus spp. in Division 58.4.1

   began in 2013 in data-poor fisheries. In the present report, the next three-season (2016-18) research ... plan in Division 58.4.1 was revised using the updated CCAMLR C2 and Observer data. The stock sizes for ... management of Dissostichus spp. population(s) in data- poor exploratory fisheries. During the second three ... . To this end, we propose to follow the current research style in the current research blocks for the ...

   Meeting Document : WG-FSA-15/17 : Auteur(s): Delegation of Japan

5. Revised research plan for the 2015/16 exploratory longline fishery of Dissostichus spp. in Division 58.4.2

   began in 2013 in data-poor fisheries. In the present report, the next three-season (2016-18) research ... plan in Division 58.4.2 was revised using the updated CCAMLR C2 and Observer data. The stock sizes for ... / fisheries management of Dissostichus spp. population(s) in data- poor exploratory fisheries. During the ... fish. To this end, we propose to follow the current research style in the current research blocks for ...

   Meeting Document : WG-FSA-15/18 : Auteur(s): Delegation of Japan

6. Using spatial population models to investigate the effects of a proposed Marine Protected Area on Antarctic toothfish in the Ross Sea region

   model of Antarctic toothfish in the Ross Sea region to investigate the effects of a proposed MPA on the ... status of the toothfish population. This study indicates that the MPA design proposed in 2013 is likely ... to result in a small increase in the catch limit under existing harvest management rules, as well as ... a large increase in the area with little depletion of the population and no increase in the area ...

   Meeting Document : WG-FSA-15/42 : Auteur(s): S. Mormede, A. Dunn, S.J. Parker and S.M. Hanchet (New Zealand)

7. Research plan for the 2016/17 toothfish fishery in Division 58.4.4b by Japan and France

   Abstract:  Japan and France made the next season’s (2016/17) research plan in research blocks ... 58.4.4b_1 and 58.4.4b_2 using the updated CCAMLR C2 and Observer data. The estimated median stock size in ... block 58.4.4b_1 and 58.4.4b_2 was 380, and 483 tonnes, respectively, in Chapman estimator using R ... -package tagr. The estimated median stock size in block 58.4.4b_1 and 58.4.4b_2 was 1 057, and 1 153 tonnes ...

   Meeting Document : WG-SAM-16/06 : Auteur(s): Delegations of Japan and France

8. A characterisation of the toothfish fishery in the Ross Sea region (Subarea 88.1 and SSRUs 88.2A–B) to 2016–17

   Abstract:  This report summarises fishing catch and effort in the Ross Sea region (Subarea 88.1 ... the 2017 season. In 2017, sea ice constraints were minimal and catch rates were the second highest on ... record, resulting in the shortest season to since the fishery started. Median and 90%ile scaled lengths ... driven by location of fishing. The strongest time trend in the data is the change in the sex ratio over ...

   Meeting Document : WG-FSA-17/07 : Auteur(s): S. Parker and S. Mormede

9. Gonad analysis of Antarctic toothfish in Subareas 58.4 and 88.3

   found to be 0.50, and displayed the tendency of increase with increase in the total length 140 cm. The ... -synchronous type. In the ovaries of growing stage, initial vitellogenic oocytes with approximately 150 ㎛ of ... existed in the cortical section of the cytoplasm. Histological testicular type of Antarctic toothfish was ... testicular lobule type, and the testicular lobule was composed of numerous testicular cysts. In the testis of ...

   Meeting Document : WG-FSA-17/09 : Auteur(s): J. Kim, S.-G. Choi, J. Lee, J. Lee and D. An

10. Characteristics of interannual variation in aggregation and diurnal vertical migration of Antarctic krill at South Georgia during winter

    Abstract:  We elucidated characteristics of interannual variability in density index, recruitment ... index and diurnal vertical distribution for Antarctic krill in krill fishing grounds (hotspots) at South ... predictable fishing grounds occurred in the restricted areas throughout the study period. Main results are as ... follows: Median CPUEs did not show particularly low values in winter even when krill abundance and ...

    Meeting Document : WG-EMM-18/34 : Auteur(s): T. Ichii, Y. Mori, P.N. Trathan, K. Mahapatra, M. Okazaki, T. Hayashi and T. Okuda

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