Resultados de la búsqueda
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Krill fishery report: 2005 update
Abstract: This report on the krill fishery in Area 48 has been prepared in a format similar to ... from 6 Contracting Parties are fishing for krill in Area 48 in the 2004/05 season, and these vessels ... have taken 62049 t of krill to date. Two CCAMLR scientific observers have been deployed. The ... preliminary estimate of the total catch of krill for the season is approx 142000 t. This compares with 118166 ...
Meeting Document : WG-EMM-05/5 : Autor(es): Secretariat
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Towards an ecological risk assessment of krill fishing in East Antarctica (CCAMLR Divisions 58.4.1 and 58.4.2)
available scientific data on abundance of krill predators, foraging activity and the historical distribution ... Abstract: With the recommencement of commercial krill (Euphausia superba) fishing in CCAMLR ... framework used in Area 48 to assess the risks involved in any redevelopment of a krill fishery and evaluate ... of krill catch and effort. We have pulled together an initial collection of existing krill predator ...
Meeting Document : WG-EMM-17/20 : Autor(es): N. Kelly, M. Cox, L. Emmerson, S. Kawaguchi, B. Raymond, C. Southwell and D. Welsford
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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 : Autor(es): 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
reproduction and survival of krill larvae. Here we provide data from 1995 and 1996 that support hypothesized ... 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 ... relationships between krill, salps and region-wide sea-ice conditions. We have assessed salp consumption as a ...
Meeting Document : WG-EMM-97/73 : Autor(es): Hewitt, R., Trivelpiece, S., Fraser, W., Holm-Hansen, O., Siegel, V., Trivelpiece, W., Loeb, V.
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Short note: By-catch of fishes caught by the krill fishing vessel Niitaka Maru in the South Georgia area (August 2007)
caught during Antarctic krill (Euphausia superba DANA) fisheries by F/V Niitaka Maru (5200t) were made ... krill CPUE and fish by-catch could be confirmed in the present study. Author(s): T. Iwami and M ... . Naganobu (Japan) Title: Short note: By-catch of fishes caught by the krill fishing vessel Niitaka Maru in ...
Meeting Document : WG-EMM-08/57 : Autor(es): T. Iwami and M. Naganobu (Japan)
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MULTIPLE TIME SCALES OF VARIABILITY IN THE KRILL POPULATION AT SOUTH GEORGIA
ecosystem-based management of any krill fishery in the region. Krill acoustic density data from surveys ... population size structure over the same period from predator diet data, were used with a krill population ... Abstract: The South Georgia region supports a high biomass of krill that is the subject to high ... inter-annual variability. The lack of a self-sustaining krill population at South Georgia means that ...
Meeting Document : WG-EMM-08/48 : Autor(es): K. Reid, J. Watkins, E. Murphy, P. Trathan, S. Fielding and P. Enderlein (United Kingdom)
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Selectivity and two biomass measures in an age-based assessment of Antarctic krill (Euphausia superba)
Abstract: An integrated, age-structured model was fitted to different combinations of survey data ... selectivity to investigate the population dynamics of Antarctic krill (Euphausia superba) near the Antarctic ... Peninsula. The data were from surveys conducted by the U.S. Antarctic Marine Living Resources Program around ... the South Shetland Islands from 1992 to 2011. Two indices of krill biomass based on (1) trawl-net ...
Meeting Document : WG-EMM-15/P07 : Autor(es): D. Kinzey, G.M. Watters and C.S. Reiss
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Biomass of Antarctic krill around South Shetland using 2-dB difference method in April 2016
regulation that limits Krill catch amount using fishing survey and acoustic assessment data in order to ... Abstract: Antarctic Krill plays an important role in Antarctic ecosystems as the medium that ... source for the future food resource. Since Krill is mainly schooled within 200m depth, mass catching is ... utilize Krill resources continuously. This study is aimed to estimate the density and the biomass of Krill ...
Meeting Document : WG-EMM-16/60 : Autor(es): Delegation of the Republic of Korea
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Classification of Southern Ocean krill and icefish echoes using Random Forests
. Antarctic krill, Euphausia superba, are typically identified through a combination of expert scrutiny of ... two or more echosounder frequencies. For commonly used frequencies, however, the differences for krill ... pelagic aggregations, which can be difficult to distinguish acoustically from large krill layers. Mackerel ... required. To address this, random forests were generated using acoustic and net sample data collected ...
Meeting Document : WG-EMM-16/23 : Autor(es): N. Fallon, S. Fielding and P. Fernandes
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Spatio-temporal variability in the winter diet of larval and juvenile Antarctic krill, Euphausia superba, in ice-covered waters
and a major fisheries resource. The winter survival of age class 0 (AC0) krill is susceptible to ... Abstract: Antarctic krill Euphausia superba is an ecological key species in the Southern Ocean ... limited. We studied the spatio-temporal variability of the diet in 4 cohorts of AC0 krill in the Northern ... show that the diet of overwintering AC0 krill varies significantly in space and time. Variability in ...
Meeting Document : WG-EMM-18/P18 : Autor(es): F.L. Schaafsma, D. Kohlbach, C. David, B.A. Lange, M. Graeve, H. Flores and J.A. van Franeker