Результаты поиска

1. Estimates of length-frequency in the assessment of mackerel icefish Champsocephalus gunnari in Subarea 48.3

   Abstract:  This working document provides details of a modification in the method of calculating ... length distributions used in the assessment of Champsocephalus gunnari from the length distributions of ... individual hauls. The effect of these changes in method have little impact on the catches that would have ... from the 2015 and 2017 surveys.   Author(s):  T. Earl Title:  Estimates of length-frequency in the ...

   Meeting Document : WG-FSA-17/51 : Автор(ы): T. Earl

2. Preliminary analyses of data collected during experimental fishing for Patagonian toothfish in international waters of the southwest Indian Ocean (Area 51)

   procedures, in a restricted area south of Madagascar and north of the Prince Edward and Marion Islands and ... the Crozet Islands, and outside EEZ and CCAMLR waters. A total of 57 sets were taken at between 360 ... comprised between 53 and 1158 kg. Northward distribution of Patagonian toothfish is closely related to the ... extension of the sub-Antarctic Front to the north. The prospected area would seem to be located at the edge ...

   Meeting Document : WG-FSA-04/19 : Автор(ы): L.J. López Abellán (Spain)

3. An 8-year cycle in krill biomass density inferred from acoustic surveys conducted in the vicinity of the South Shetland Islands during the austral summers of 1991/1992 through 2001/2002

   vicinity of the South Shetland Islands, Antarctica were re-analyzed using updated procedures for ... compensating for diel vertical migration of krill outside of the acoustic observation window. Intra-and inter ... surveys conducted in the austral summers of 1991/1992 through 2001/2002. Estimated biomass density ranged ... variability may be attributed to changes in the spatial distribution of krill relative to the survey area ...

   Meeting Document : WG-EMM-03/6 : Автор(ы): R.P. Hewitt, D.A. Demer and J.H. Emery (USA)

4. Analysis of krill trawling positions in the area north of the South Shetland Islands (Antarctic Peninsula area) from 1980/81 to 1998/99

   Abstract:  Positions of commercial krill operation for 1980/81 season to 1998/99 season in the ... area to the north of South Shetland Islands were analyzed by using GLM (generalized linear model ... ). Fishing season, the timing, and the longitude were significant factors to explain the variability of ... from mid-1980 onwards, they tended to happen in the south, with exceptions of 1994/95 and 1995/96 ...

   Meeting Document : WG-EMM-00/58 : Автор(ы): S. Kawaguchi (Japan)

5. Development of an underwater setting method for surface longliners, to minimise the accidental capture of seabirds

   Abstract:  In response to the Department of Conservation's concerns for the accidental ... capture of seabirds by Surface Long Liners and subsequent contract 9513004, several concepts of bait ... reaches its determined depth. At this point in time the carry over action of the capsule and retrieval ... action would release the bait. This design concept proved worthy of construction and trial. Sea trials of ...

   Meeting Document : WG-FSA-97/54 : Автор(ы): Bentley, N., Smith, M.

6. Results of a hydroacoustic survey of Antarctic krill populations in CCAMLR Division 58.4.1 carried out in January to April 1996

   CCAMLR Division 58.4.1 for the purposes of estimating overall biomass (B0). The krill biomass in the area ... surveyed (873,000 km2) was estimated to be 6.67 million tonnes with a CV of 27%. Krill were more abundant ... in the west of the survey area 800-1200E than in the 120°-150°E region. The majority of the krill ... detected were found in the top 80 metres of the water column. Author(s):  Higginbottom, I., de la Mare, W ...

   Meeting Document : WG-EMM-96/28 : Автор(ы): Higginbottom, I., de la Mare, W., Pauly, T., Nicol, S.

7. Use of current velocity data from fram to investigate the large scale transport of krill in the Scotia Sea

   Abstract:  Current velocity data from a single time realisation of the FRAM model are presented ... for particular areas of the Scotia Sea. The regions are based on the CCAMLR sub-areas and also include ... boundaries over the upper 250m of the water column. These have been combined with estimates of krill density ... and standing stocks to consider the large scale flux of krill through the regions and estimate ...

   Meeting Document : WS-Flux-94/05 : Автор(ы): E.J. Murphy (United Kingdom)

8. Homogeneity of body length composition of Antarctic krill within the commercial haul

   Abstract:  The homogeneity of krill length composition in commercial trawl catches (hauls) was ... investigated by comparing length compositions from different parts of the same haul. There was no significant ... difference (P>0.05) in 53 out of 60 hauls. Therefore it is concluded that sampling from one part of the ... haul provides a reasonable estimate of length composition in the entire haul as a whole. In contrast to ...

   Meeting Document : WG-KRILL-90/11 Rev1 : Автор(ы): T. Ichii (Japan)

9. Some aspects of the relation between Antarctic krill abundance and CPUE measures in the Japanese krill fishery. (Component of SC-CAMLR-VI/BG/4)

   Abstract:  The history of the Japanese krill fishery is reviewed briefly. Important aspects of the ... time data may be needed to assess the density of swarms in a concentration, but may be difficult to ... record in practice, and a number of other factors may complicate any analysis. The possibility of ... indexing the extent of the krill distribution through routine oceanographic monitoring merits attention. A ...

   Meeting Document : WS-KCPUE-89/03 : Автор(ы): D.S. Butterworth (South Africa)

10. Report of the 1st and the 2nd stage of research fishing conducted by Russian Federation in SSRU 882A in 2010–2012

    Abstract:  In accordance with decision of CCAMLR Scientific Committee in 2010 and in 2011 years ... Russian vessel “Chio Maru 3” (“Antei” Ltd.) has been conducted research fishing of toothfish. The primary ... objective of the works in the SSRU was estimation of toothfish’s distribution density and carrying out of ... . Gordeev (Russia) Title:  Report of the 1st and the 2nd stage of research fishing conducted by Russian ...

    Meeting Document : WG-SAM-12/08 : Автор(ы): E.F. Kulish and I.I. Gordeev (Russia)

Страницы