Resultados de la búsqueda
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Integrated analysis of the by-catch data in the Ross Sea toothfish fishery
Abstract: The indices of exploratory toothfish fishery in the Ross Sea for the period of 2008 ... hooks) and normalized target catch ratio. There was evidence of distinct differences in the mean (and ... distribution) in the CPUE toothfish and the by-catch CPUE. Our analysis also show that target catch ratios ... significant varied across years and by SSMU and among longline gear types. The spatial-temporal heterogeneity ...
Meeting Document : WG-FSA-16/13 Rev. 1 : Autor(es): S. Kasatkina
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Surface water circulation in krill fishing areas near the South Shetland Islands
Paper Title: Surface water circulation in krill fishing areas near the South Shetland Islands ... deployed in shelf and oceanic waters to the north of the South Shetland Islands. Each buoy was deployed ... with a drogue attached at a depth of 30 m to assess flow patterns at the depth range where krill tended ... sluggish southwest current with a series of small-scale circular and semi-circular flows in the shelf ... ; cylindrical type - length 8.6 m, diameter 0.94 m in 1994/95) at a depth of 30 m to assess flow pattern at ... trawling positions of Japanese fishing vessels in the past 13 years, and also from krill abundance in ... Orkneys for 20 days before drifting to South Georgia. Buoy 4, deployed in the shelf region, moved east ... currents which had properties of retention. In addition to positions of catches for the past 13 years ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 125–136 : Autor(es): Ichii, T. and M. Naganobu
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Interannual variability in Antarctic krill (Euphausia superba) density at South Georgia, Southern Ocean: 1997 – 2013
the WCB in that year. WCB krill density (µ, mean density for the area) showed several years (1997-8 ... , 2001-2003, 2005-2007) of high values (µ > 30 g m-2) interspersed with years (1999-2000, 2004, 2009 ... every 4 to 5 years. Cross correlation analyses of variability in krill density with current and lagged ... . Hence, only the densest krill swarms detected in any one year drove the mean krill density estimates for ...
Meeting Document : WG-EMM-14/P04 : Autor(es): S. Fielding, J. Watkins, P. Trathan et al.
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Fishery Report: Exploratory fishery for Dissostichus spp. in Division 58.4.2
Dissostichus spp. was 70 tonnes, of which no more than 30 tonnes could be taken in SSRU A and no more than 40 ... December 2010 to 30 November 2011. Environmental protection in this fishery is regulated by CMs 26-01, 22 ... in the first two years of the fishery when that SSRU was open to fishing. 14. In 2010, the ... Range in catches 4–62 4–37 14–156 20. Dr L. Pshenichnov (Ukraine) noted that the estimation of ...
Document : Site Section: Publications
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Seabird mortality in the longline fishery for Patagonian toothfish at the Prince Edward Islands: 1996–1997
Prince Edward Islands in October 1996, but unsanctioned fishing commenced some months before this date ... the estimated 3.8 million hooks set by permit-holders in the South African Exclusive Economic Zone ... (EEZ). However, the total fishing effort is estimated, based on landings, to be between 20 and 50 ... Thalassarche chyrsostoma and Yellow-nosed Albatrosses T. chlororhynchos (together 23 %), and giant petrels ...
Meeting Document : WG-FSA-97/51 : Autor(es): Boix-Hinzen, C., Enticott, J.W., Ryan, P.G., Wanless, R., Purves, M., Nel, D.C.
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Consideration of measures to address a co-mingling scenario in the toothfish fishery
in the toothfish fishery Microsoft Word File: cc-xxxvi-bg-20.docx Approval: Approved Secretariat ...
Meeting Document : CCAMLR-XXXVI/BG/20 : Autor(es): CCAMLR Secretariat
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Inter-annual variability in krill density at South Georgia: 1997–2012
, mean density for the area) showed several years of moderate to high values (µ > 30 gm-2 ... ) interspersed with years (1999-2000, 2004, 2009-2010) of very low density (µ < 30 gm-2). Author(s): S ... krill was examined using a 15 year time series of acoustic observations undertaken in the Western Core ... one year were driving the mean krill density estimates for the WCB in that year. WCB krill density (µ ...
Meeting Document : WG-EMM-13/14 : Autor(es): S. Fielding, J.L Watkins, P. Trathan, P. Enderlein, C. Waluda, C. Goss, G. Stowasser, G. Tarling and E. Murphy (United Kingdom)
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Exploratory fishing for Dissostichus spp. in the Antarctic region (Subareas 48.1, 48.2 and 88.3)
Paper Title: Exploratory fishing for Dissostichus spp. in the Antarctic region (Subareas 48.1 ... establish the presence of Dissostichus spp. in Subareas 48.1, 48.2 and 88.3. Industrial longlines (Spanish ... °14'S), while Patagonian toothfish (Dissostichus eleginoides) were caught in waters from King ... George Island in the South Pacific Ocean (61°24'S) to the Scotia Sea in the South Atlantic (58°03 ... South Shetland Islands zone. In recent years, the Patagonian toothfish (Dissostichus eleginoides ... ). Over the last few years, interest in this resource has increased, resulting in increased ... near Adelaide Island, where longlines were set between 290 and 350 m (station no. 20), and in ... results obtained from five longline sets in the Antarctic region (60°53'-61'58's and 54'47'-60°20'W) at ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 1–17 : Autor(es): Arana, P.M. and R. Vega
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Fishery Report 2013: Exploratory fishery for Dissostichus spp. in Subarea 48.6
Description / Abstract: Fishery Report 2013: Exploratory fishery for Dissostichus spp. in Subarea ... been a major focus of attention in CCAMLR in recent years after the acknowledgement that commercial ... of D. mawsoni and D. eleginoides caught in this fishery are presented for all years in which the ... -frequency distributions are only presented for those years/SSRUs in which the number of fish measured was ... to a seabird by-catch limit. 30. The risk level for seabirds in this fishery in Subarea 48.6 is ...
Document : Site Section: Publications
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A proposed management procedure for the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity
) resource in the Prince Edward Islands vicinity Abstract / Description: The status of the toothfish ... resource in the Prince Edward Islands region is unclear because CPUE data suggest considerable depletion ... future TACs in the face of this appreciable uncertainty. Four Operating Models (OMs) reflecting ... resource. The MP uses two data sources: the recent trend in longline CPUE and the mean length of the ... future projections over a 20-year period, and in particular the following four statistics which were ... - tions in years before any (legal or IUU) harvesting commenced are taken into account, the absence of ... regression of the abundance index against time for the last (in the case implemented) five years and mean ... selectivity func- tion of the earlier years (1997 to 2002) of the fishery is assumed to apply in the future ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 33–69 : Autor(es): Brandão, A. and D.S. Butterworth