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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 : Автор(ы): 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 : Автор(ы): 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 : Автор(ы): F.L. Schaafsma, D. Kohlbach, C. David, B.A. Lange, M. Graeve, H. Flores and J.A. van Franeker
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How much is enough? analysis of the net sampling effort in the Elephant Island area necessary to adequately assess and describe krill and zooplankton assemblages during summer
data from at least 55 stations are required to adequately estimate krill, salp, and other zooplankton ... Abstract: Data from 1995-1997 US Antarctic Marine Living Resources (AMLR) Program surveys in the ... the (1) abundance and demographic structure of Antarctic krill and (2) relative abundance and ... interspecific relations of krill, salps and other macrozooplankton taxa in the Elephant Island area during ...
Meeting Document : WG-EMM-97/32 : Автор(ы): Loeb, V.
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CCAMLR protocol for krill biomass estimation
changes in assessing krill target strength (TS) and identifying acoustic targets have been introduced via ... what is the protocol used to derive the current estimate of B 0, and no single document is currently ... in a paper submitted to WG-EMM 2016 so that a single published document will exist with the most up ... protocol for krill biomass estimation Approval: Approved Secretariat Workflow Status: Content Approved ...
Meeting Document : SG-ASAM-16/02 : Автор(ы): S. Fielding, A. Cossio, M. Cox, C. Reiss and G. Skaret
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Results from the 2019 annual acoustic krill monitoring off the South Orkney Islands
Abstract: In 2019, the annual IMR regional krill monitoring survey off the South Orkneys was ... conducted by RV Kronprins Haakon as part of the Scotia Sea large scale krill monitoring effort. To allow for ... surveys from 2011 to 2018. The distribution was similar to previous years with most krill along the shelf ... edge north of the Islands. Also the krill areal density measured on the 120 kHz of 69.87 g/m 2 was very ...
Meeting Document : WG-EMM-2019/69 : Автор(ы): G. Skaret, B.A. Krafft, G. Macaulay, T. Knutsen and O.A. Bergstad
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Observation on interactions between marine mammals and krill mid-water trawl
Abstract: An observation on the interaction between marine mammal and krill midwater trawl was ... carried out onboard the Chinese krill fishing vessel Fu Rong Hai during the 2018/19 fishing season. The ... observed either. The observation found the Antarctic fur seals would be attracted by the codend of krill ... seals. Future researches on the interaction between marine mammals and krill fishing gears would be ...
Meeting Document : SC-CAMLR-38/BG/20 : Автор(ы): Y. Ying, G. Fan, X. Zhao, J. Zhang, X. Wang and J. Zhu
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Multiple acoustic estimates of krill density at South Georgia during 2000/2001 reveal significant intra-annual and spatial variability
data revealed no significant difference between the mean krill density derived from only those 4 ... Abstract: Three separate acoustic surveys of Antarctic krill (Euphausia superba) were conducted ... variability that could be used to set data from more restricted “snap-shot” cruises in a broader context. The ... extensive coverage around South Georgia. Krill density in the western box in the early-season survey was ...
Meeting Document : WG-EMM-01/15 : Автор(ы): A.S. Brierley, C. Goss, S.A. Grant, J.L. Watkins, K. Reid, M. Belchier, I. Everson, M.J. Jessop, V. Afanasyev and J. Robst (United Kingdom)
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Synopsis of CEMP and non-CEMP predator parameters from Admiralty Bay and Cape Shirreff, South Shetland Islands, Antarctica: their relationships to krill abundance and ice cover, 1978–2003
performance indices collected at the two sites 2. Table 2. Data on annual variability in krill biomass density ... parameters, and their relationships to krill abundance and ice cover indices for the period 1978-2003 ... K.Reid for similar analyses at South Georgia. The tabular data include: 1. Table 1. A list of the penguin ... predator indices and ice cover 5. Table 5. The relationships between predator indices and krill biomass ...
Meeting Document : WG-EMM-03/61 : Автор(ы): W.Z. Trivelpiece (USA), K. Salwicka (Poland) and S.G. Trivelpiece (USA)
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Modelling the dynamics of krill populations in the Antarctic Peninsula region
population dynamics of krill and estimate the expected mortality rates. A number of models of the population ... dynamics of krill are used to assess to what extent they can explain the observed changes in the density of ... second method develops a fully age-structured population model and uses only the recruitment data to ... develop a model of the long-term dynamics. Data on the recruitment of the first and second age groups were ...
Meeting Document : WG-EMM-99/56 : Автор(ы): E.J. Murphy (United Kingdom), A. Constable (Australia) and D. Agnew (United Kingdom)
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