Résultats de la recherche
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Analysis of the krill spatial distribution characteristics as the important factor in fishery management in Area 48 (report of the CCAMLR scholarship recipient)
recipient (mentor Kasatkina S.). The data obtained from the multiannual Russian observations in the Area 48 ... , including acoustic surveys data, fishery statistics (haul by haul), the data obtained during scientific ... Abstract: Analysis of the krill spatial distribution characteristics as the important factor for ... the krill fishery management in Area was performed by Sytov A. being the CCAMLR Scholarship ...
Meeting Document : WG-EMM-16/41 : Auteur(s): S.M. Kasatkina and A. Sytov
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Krill fishery report: 2005 update
fine-scale data are overdue for 2003/04. The report includes: Availability of fishery and observer data ... 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 ...
Meeting Document : WG-EMM-05/5 : Auteur(s): 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 ... the Working Group review this work, prioritise data sets and further analyses, and consider a process ... 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 ...
Meeting Document : WG-EMM-17/20 : Auteur(s): 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
of males from the field (net collected data and penguin diet data) showed a decline in proportion of ... 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 ...
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
reproduction and survival of krill larvae. Here we provide data from 1995 and 1996 that support hypothesized ... decreased frequency of winters with extensive sea-ice development over the last five decades. Our data ... 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 ...
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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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 : Auteur(s): 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 ... Peninsula. The data were from surveys conducted by the U.S. Antarctic Marine Living Resources Program around ... quantities was tested using simulated data. Annual trends in the estimates of total biomass, spawning biomass ... when fitted to simulated data. Annually varying selectivities produced more variable estimates of the ...
Meeting Document : WG-EMM-15/P07 : Auteur(s): 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 ... (GwangJa-Ho, 3,012 tonnage). Data on frequency 38 and 120 kHz (EK60, Simrad) were collected (survey area ... -processing software (Echoview Ver6.0, Myriax), noises of collected data were processed and frequency ... Abstract: Antarctic Krill plays an important role in Antarctic ecosystems as the medium that ...
Meeting Document : WG-EMM-16/60 : Auteur(s): Delegation of the Republic of Korea
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Classification of Southern Ocean krill and icefish echoes using Random Forests
are similar to those for many co-occurring fish species that do not possess swim bladders. At South ... required. To address this, random forests were generated using acoustic and net sample data collected ... scattering fish species with an overall estimated accuracy of 95 %. Minimum S V, mean aggregation depth (m ... ), mean distance from the seabed (m) and geographic positional data were most important to the accuracy of ...
Meeting Document : WG-EMM-16/23 : Auteur(s): 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 : Auteur(s): F.L. Schaafsma, D. Kohlbach, C. David, B.A. Lange, M. Graeve, H. Flores and J.A. van Franeker