Search results
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Estimating density and biomass of Antarctic krill (Euphausia superba) around South Shetland using the 2-dB difference method
Abstract: The distribution and abundance of krill aggregation inhabiting the Subarea 48.1, which ... in 2016 and 38 and 200 kHz from March 6 to 14 and 38 and 120 kHz on April 27 and May 5 in 2017. Krill were ... identification) based on data from a transect-based survey. The weighted krill density and biomass were estimated ... thousand tonnes (CV=31.4%) applying S v difference-3.0-13.8 dB in 2017, respectively. Krill density ...
Meeting Document : SG-ASAM-18/08 : Author(s): S. Choi, K. Lee and D. An
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Development of methods relevant to feedback management (FBM) for the krill fishery
Protected Area (MPA) development in CCAMLR Planning Domain 1 encompasses the major krill fishing grounds ... . Thus, data supporting FBM as an integral part of the broader management strategies of the krill ... of krill density, distribution, availability and predator needs. A future developed FBM system ... with finer-scale knowledge of krill predator feeding strategies and updated through specific scientific ...
Meeting Document : WG-EMM-18/08 : Author(s): B.A. Krafft, A. Lowther, G. Macaulay, M. Chierici, M. Biuw, A. Renner, T.A. Klevjer, R. Øyerhamn, C.A. Cárdenas, J. Arata, A. Makhado, C. Reiss and O.A. Bergstad
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Alternative methods for determining subarea or local area catch limits for krill in Statistical Area 48
limit on krill (Euphausia superba) in Statistical Area 48. The measure also asks the Scientific ... or local areas. Nine alternative methods of determining subarea or local area krill catch limits ... . Alternatives based on continental shelf area, simple pulse fishing, and krill surveys are not biologically ... : Alternative methods for determining subarea or local area catch limits for krill in Statistical Area 48 ...
Meeting Document : WG-KRILL-92/16 : Author(s): G. Watters and R.P. Hewitt (USA)
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Dynamic model of krill Euphausia superba swarm
, using the 38 and 120 kHz BioSonics dual-beam hydroacoustic system, numerous swarms of krill Euphausia ... (Okubo, 1980, 1986). It was assumed that the above mentioned model can also be applicable to krill swarms ... . Using physical parameters of the krills' swarm (density, length), the above assumption was verified ... . It was found that the vertical density pattern of krills' swarm, with a mean density of up to 1000 ...
Meeting Document : WG-EMM-95/68 : Author(s): Kalinowski, J., Azzali, M.
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PRELIMINARY RESULTS OF THE EXPERIMENT ON DEFINITION OF ANTARCTIC KRILL MORTALITY RATE IN FISHERY
Abstract: Two successful experiments on definition of Antarctic krill mortality have been carried ... . Approximately 230 to 130 kg of krill are percolated and punched through per an hour of trawling if the average ... of trawling which influence the value of the Antarctic krill mortality rate are: the trawl configuration ... and K. Vyshniakova (Ukraine) Title: PRELIMINARY RESULTS OF THE EXPERIMENT ON DEFINITION OF ANTARCTIC KRILL MORTALITY ...
Meeting Document : WG-EMM-11/15 : Author(s): L. Pshenichnov and K. Vyshniakova (Ukraine)
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The Role of Fish as Predators of Krill (Euphausia superba) and Other Pelagic Resources in the Southern Ocean
Abstract: First attempts were made in the early 1980’s to estimate the krill and pelagic food ... number of food studies were conducted. Currently, the best estimates of krill consumption by fish are 23 ... – 29. 106 tonnes of krill and other pelagic prey taken annually by demersal fish and 7 – 44. 106 tonnes ... of quantitative winter food studies. However, it is evident from this review that the importance of krill in fish ...
Meeting Document : CCAMLR-IWC-WS-08/09 : Author(s): Collins, M.A., Williams, R., Agnew, D.J., Kock, K.-H., Belchier, M., Shust, K.V., Welsford, D., Hanchet, S., Pshenichnov, L., Barrera-Oro, E.
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Preliminary evaluation of two feedback management strategies for the krill fishery in Subareas 48.1–48.3
Abstract: The Scientific Committee has previously used results from the Krill-Predator-Fishery ... for the krill fishery will compromise the Commission’s ability to achieve the objectives in Article II ... of the Convention. Management strategies for the krill fishery are currently comprised of an overall catch limit ... ) every five years based on results of monitoring either (1) the density of krill (g·m ‑2) or (2) changes ...
Meeting Document : SC-CAMLR-XXXVII/BG/12 : Author(s): Delegation of the USA
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RELEVANT ISSUES IN REGARDS TO THE MANAGEMENT OF ANTARCTIC KRILL FISHERIES IN AREA 48
for krill in Area 48. Due to the high level of risk associated with maintaining the current fishing pattern ... consider interim protective measures to protect krill predators from the impacts of fishing. In order ... to adequately incorporate current uncertainties in regards to krill, krill catches, predators, and environmental ... TO THE MANAGEMENT OF ANTARCTIC KRILL FISHERIES IN AREA 48 Approval: Approved ...
Meeting Document : WG-EMM-09/31 : Author(s): L. Pshenichnov and G. Milinevsky (Ukraine)
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Fishes caught along with the Antarctic krill in the vicinity of the South Georgia Island during the austral winter months of 1992
of fish in our krill catches was relatively low (less than 52 individuals and 43.68g per 100kg of krill ... with the Antarctic krill in the vicinity of the South Georgia Island during the austral winter months of 1992 ... in our krill catches was relatively low (less than 52 individuals and 43.68g per 100kg of krill ... Fishes caught along with the Antarctic krill in the vicinity of the South Georgia Island during ...
Meeting Document : WG-KRILL-93/51 : Author(s): T. Iwami (Japan)
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Recruitment of Antarctic krill (Euphausia superba) and possible causes for its variability
Abstract: Between year variability of krill year class success and recruitment during the 1977 ... conditions during the preceding winter season, the timing of krill spawning, and the occurrence of dense salp ... concentrations. No correlation is shown with upper water column temperature or krill stock/spawning stock size ... . A concept is developed describing the interactions of various parameters leading to good or poor krill ...
Meeting Document : WG-EMM-95/15 : Author(s): Siegel, V., Loeb, V.