Résultats de la recherche
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NET-BASED VERIFICATION OF ACOUSTIC TECHNIQUES USED TO IDENTIFY ANTARCTIC KRILL
that were collected during two cruises to the South Georgia region in 1996. For each krill aggregation ... identification algorithms for krill: (i) ‘3 freq model’- using the SDWBA to set the acceptance windows for both ... model derived target id window only identified krill in 6 of the 16 nets correctly. The ‘2 freq 2-16 ... ’ algorithm attributed more than 90 % of the total backscatter to krill in all but 1 aggregation with the ‘2 ...
Meeting Document : WG-EMM-08/54 : Auteur(s): J. Watkins and S. Fielding (United Kingdom)
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Male krill grow fast and die young
Abstract: The size-differentiated sex ratio (proportion of males: POM) of Antarctic krill was ... southwest Atlantic sector, and from the krill fishery in the Southern Ocean. The percentage of males in size ... classes of adult krill was generally high in krill of 30-35 mm total length, always low in 38-42 mm krill ... , sometimes showed higher values in 45-50 mm krill, but always decreased in the largest krill (>50 mm ...
Meeting Document : WG-EMM-07/P6 : Auteur(s): S. Kawaguchi, L.A. Finley, S. Jarman, S.G. Candy (Australia), R.M. Ross, L.B. Quetin (USA), V. Siegel (Germany), W. Trivelpiece (USA), M. Naganobu (Japan) and S. Nicol (Australia)
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Effects of sea-ice extent and krill or salp dominance on the Antarctic food web
Abstract: Krill (Euphausia superba) provide a direct link between primary producers and higher ... not a major dietary item for Antarctic vertebrate predators, their blooms can affect adult krill ... reproduction and survival of krill larvae. Here we provide data from 1995 and 1996 that support hypothesized ... relationships between krill, salps and region-wide sea-ice conditions. We have assessed salp consumption as a ...
Meeting Document : WG-EMM-97/73 : Auteur(s): Hewitt, R., Trivelpiece, S., Fraser, W., Holm-Hansen, O., Siegel, V., Trivelpiece, W., Loeb, V.
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Time series of Antarctic krill estimates around the South Shetland Islands from 2013 to 2019
Abstract: Metadata for krill biomass time series obtained by Chinese krill fishing vessel in ... . Distribution of Antarctic krill for the 2013/14 to 2015/16 and the 2017/18 to 2018/19 fishing seasons were ... mapped by the Chinese F/V Fu Rong Hai to understand the interannual variations of Antarctic krill around ... the South Shetland Islands, one of the major fishing ground for Antarctic krill in Area 48. Acoustic ...
Meeting Document : SG-ASAM-2019/04 Rev. 1 : Auteur(s): X. Yu, X. Wang, X. Zhao, J. Zhang, G. Fan, Y. Ying and J. Zhu
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KRILL FISHERY REPORT: 2011 UPDATE
and Poland have fished for krill in Area 48. The total catch reported to May 2011 was 110949 t, most ... has been taken by two vessels using the continuous fishing system. The forecast total catch of krill ... for the season falls in the range 153000-214000 t. In 2009/10, 10 vessels fished for krill in Area 48 ... first time, the catches of krill approached the apportioned limit for Subarea 48.1 (25% of the trigger ...
Meeting Document : WG-EMM-11/05 : Auteur(s): Secretariat
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Learning about Antarctic krill from the fishery
Abstract: Antarctic krill has been studied for many decades, but we are still long way from ... design associated with scientific surveys that have been obstacles for us to better understand krill ... biology. The krill fishery is the largest fishery in the Southern Ocean, continuously operating since ... discussions to understand krill biology. In this paper, after a brief overview of krill fishery operation and ...
Meeting Document : WG-EMM-07/P5 : Auteur(s): S. Kawaguchi and S. Nicol (Australia)
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Learning about Antarctic krill from the fishery
Abstract: Antarctic krill has been studied for many decades, but we are still long way from ... design associated with scientific surveys that have been obstacles for us to better understand krill ... biology. The krill fishery is the largest fishery in the Southern Ocean, continuously operating since ... discussions to understand krill biology. In this paper, after a brief overview of krill fishery operation and ...
Meeting Document : WG-EMM-06/24 : Auteur(s): S. Kawaguchi and S. Nicol (Australia)
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Detecting trends in the krill fishery
Abstract: The development of the krill fishery can be monitored and predicted using a number of ... different sources of information. Information on current catches and scientific information on the krill ... . Economic information on the krill fishery has been difficult to access in the past but will be necessary to ... developments that could later herald an expansion in krill fishing. Information on new products from the krill ...
Meeting Document : WG-EMM-02/25 : Auteur(s): S. Nicol and J. Foster (Australia)
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Variation in the distribution of Antarctic krill Euphausia superba around South Georgia
South Georgia. Here we summarize the length-frequency distributions of krill caught on each of these ... cruises and look particularly at differences between krill taken from the eastern and western ends of the ... types with relatively simple biological characteristics: cluster 1 were medium-sized year 2+ krill (mean ... size 39.7 mm); cluster 2 were a mixture of year classes (mean size 37.7 mm); cluster 3 were large krill ...
Meeting Document : WG-EMM-97/47 : Auteur(s): Daly, H.I., Murray, A.W.A., Watkins, J.L.
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Analysis of operating conditions of the fishing vessel in relation to the distribution, biological state and behaviour of Antarctic krill (a contribution to the development of a simulation model)
Abstract: The paper considers peculiarities of krill fishery conducted by a krill fishering and ... processing vessel producting krill meat. The vessel operated in the Commonwealth Sea, the Cosmonaut Sea and ... utilisation of raw krill for processing. The catsh size was regulated by varying haul duration on yhe basis on ... cause was tthe size composition of krill in the catches. Preference was given to larger krill. The ...
Meeting Document : SC-CAMLR-VIII/BG/23 : Auteur(s): Delegation of USSR