Resultados de la búsqueda
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Assessment models for Patagonian toothfish in research block 58.4.3a_1 of Division 58.4.3a, Elan Bank for the years 2005-2014
m) CASAL models for stock status assessments of Dissostichus eleginoides in the research block ... excluding the data from fish tagged in 2012. The likelihood profiles for tagged fish released in 2012 for ... ELAN_1 model reflected a large number of recaptures of the tags released concentrated in the western area ... of research block. This is why the removal of 2012 tag release data boosted the MPD estimate of B0 in ...
Meeting Document : WG-SAM-15/24 : Autor(es): K. Taki (Japan), S. Mormede (New Zealand) and T. Ichii (Japan)
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Revised assessment models for Patagonian toothfish in research block 58.4.3a_1 of Division 58.4.3a, Elan Bank for the years 2005–2014
300 m) CASAL models for stock status assessments of Dissostichus eleginoides in the research block ... . Among them three runs were carried out using the latest information on age-length relationship in this ... fish tagged in 2012, and a catch at age model including the data with a single age length key applied ... released in 2012 for ELAN_len, ELAN_age and ELAN_lenOB models reflected a large number of recaptures of the ...
Meeting Document : WG-FSA-15/22 : Autor(es): K. Taki (Japan), S. Mormede (New Zealand) and T. Ichii (Japan)
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Research plan for the 2016/17 exploratory longline fishery of Dissostichus spp. in Division 58.4.1
Abstract: The current season (2015/16) is the first one of the second three-season research in ... data-poor fisheries. In the present report, the next season research plan in Division 58.4.1 was made ... . population(s) in data- poor exploratory fisheries. During the second three-season research, we will continue ... current research style in the current research blocks for the next season research with the sample sizes ...
Meeting Document : WG-SAM-16/04 : Autor(es): Delegation of Japan
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Research plan for the 2016/17 exploratory longline fishery of Dissostichus spp. in Division 58.4.2
Abstract: The current season (2015/16) is the first one of the second three-season research in ... data-poor fisheries. In the present report, the next season research plan in Division 58.4.2 was made ... . population(s) in data- poor exploratory fisheries. During the second three-season research, we will continue ... current research style in the current research blocks for the next research with the sample sizes ...
Meeting Document : WG-SAM-16/05 : Autor(es): Delegation of Japan
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Mesozooplankton distribution and community structure in the Pacific and Atlantic sectors of the Southern Ocean during austral summer 2017/18: a pilot study conducted from Ukrainian longliners
Abstract: Preliminary results of the pilot study of the mesozooplankton in the region between the ... Ross and Scotia Seas during November 2017 – April 2018 are presented. In total, 53 zooplankton samples ... were collected in the top 100 m water layer using vertical tows of the 0.1 m-2 Juday net from four ... emphasized the unique opportunity to investigate mesozooplankton dynamics in the regions traditionally not ...
Meeting Document : WG-FSA-18/19 : Autor(es): E.A. Pakhomov, L.K. Pshenichnov, A. Krot, V. Paramonov, I. Slypkо and P. Zabroda
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The Continuous Plankton Recorder in the Southern Ocean: a comparative analysis of zooplankton communities sampled by the CPR and vertical net hauls along 140°E
. Zooplankton in the top 150 m of the water column demonstrated strong, small-scale, vertical distribution ... variation in abundance between NORPAC depth zones (average = 82 ± 47 individuals m–3), while abundance was ... substantially higher in the CPR samples (average = 144 ± 103 individuals m–3), despite it under-sampling fast ... NORPAC samples showed that these three taxa were most abundant in the surface waters. The significant ...
Meeting Document : WS-BSO-07/P5 : Autor(es): Hunt, B.P.V and G. Hosie
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Interactions between seabirds and deep water hake trawl gear: an assessment of impacts in South African waters 2004/05
Abstract: This study estimates the mortality of seabirds in the South African deep water hake ... . Mortalities were greater in winter, when more birds attended fishing vessels, and most occurred during dumping ... average mortality rates were 0.56 (0.32-0.82) birds killed per hour during dumping in winter, 0.21 (0.07 ... -0.38) during dumping in summer, 0.09 (0.02- 0.19) when not dumping in winter, and 0.00 (–) when not ...
Meeting Document : WG-FSA-06/41 : Autor(es): B.P. Watkins, S.L. Petersen and P.G. Ryan (South Africa)
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Summer distribution, abundance and structure of krill populations (Euphausia superba and Euphausia crystallorophias) sampled by plankton net in the western Ross Sea (January–February 2000)
of krill in the western Ross Sea (Antarctica). A midwater sampler-trawl (Hamburg Plankton Net) was ... double oblique tow. Mean relative biomass of Antarctic krill Euphausia superba, in the area north of ... 1000m3. The high abundance of Euphausia superba (1510 g/1000m3) found in a single haul on the Mawson Bank ... Area (73°S 173°E) was remarkable. Ice krill Euphausia crystallorophias replaced the Antarctic krill in ...
Meeting Document : WG-EMM-00/38 : Autor(es): M. Azzali, A. Sala and G. Brancato (Italy)
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Entanglement of Antarctic fur seals in marine debris at Cape Shirreff and San Telmo Islets, Livingston Island, Antarctica: 1988–1997
in marine debris (neck collars) at SSSI N°32 and CEMP site 'Cape Shirreff and San Telmo islets ... results indicate that 45% of the entanglement material found in a total of 20 individuals (nine subadult ... packing bands, in contrast to the remaining percentage (55%) which corresponded to discarded fishing ... versus total population in the area per season is considered to be low, and never surpass percentages of ...
Meeting Document : SC-CAMLR-XVI/BG/33 : Autor(es): Delegation of Chile
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Krill biomass estimates for two survey boxes to the north east and north-west of South Georgia in January 1996: the beginning of a five-year monitoring program
Abstract: Acoustic surveys were carried out in January 1996 within two 100 x 80 km boxes located ... the first in a new five-year British Antarctic Survey programme initiated in part to monitor inter ... -annual variability in the abundance of the Antarctic krill Euphausia superba in the South Georgia region ... parallel transects, 80 km in length, running perpendicular to the major direction of shelf-break in the ...
Meeting Document : WG-EMM-96/18 : Autor(es): Watkins, J.L., Murray, A.W.A., Brierley, A.S.