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Krill biomass estimates for two survey boxes to the north east and north-west of South Georgia in January 1996: the beginning of a five-year monitoring program
Abstract: Acoustic surveys were carried out in January 1996 within two 100 x 80 km boxes located ... James Clark Ross using a Simrad EK500 echo-sounder operating at 38, 120 and 200 kHz. These surveys were ... transducers, over 100 second intervals (≈0.5 km at 10 knot survey speed). Two transects were run per day, and ... mm for box 1 and 32.0 mm for box 2 were determined. Thresholded (mvbs 120 kHz minimum-100 dB) 120 and ...
Meeting Document : WG-EMM-96/18 : Автор(ы): Watkins, J.L., Murray, A.W.A., Brierley, A.S.
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Update on the analysis of fish by-catch in the krill fishery using data from the CCAMLR Scheme of Scientific Observation
were Channichthids). The modal size class of the fish taxa for which >100 length measurements were ... indicate that a 200 000 t krill catch might be expected to contain of the order of 40t of C. gunnari and ...
Meeting Document : WG-EMM-14/31 Rev. 1 : Автор(ы): Secretariat
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Fish by-catch in the krill fishery: 2017 update
Abstract: Data on fish by-catch in the krill fishery from commercial catch data (100 153 hauls ... frequently reported in both datasets. The length-frequency distribution of all taxa for which >200 fish ...
Meeting Document : WG-FSA-17/04 : Автор(ы): CCAMLR Secretariat
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DISTRIBUTION OF KRILL AT THRESHOLD DENSITIES SUITABLE FOR FISHING IN THE ATLANTIC SECTOR: ANALYSIS OF THE 2000 SYNOPTIC SURVEY DATA
integration units where the threshold density for fishing was set at 100 gm2 following Kasatkina (2003). 3 ... . This was also true with other threshold values in the range 25 to 200 gm2 although the difference was ...
Meeting Document : WG-EMM-08/16 : Автор(ы): S. Hill and D. Agnew (United Kingdom)
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The efficacy of video-based electronic monitoring technology for at-sea monitoring of the halibut longline fishery
Abstract: This project involved the large-scale deployment of electronic monitoring (EM) systems on the 2002 British Columbia halibut longline fishery to evaluate the feasibility of EM as an alternative to observer-based at-sea monitoring. EM systems were deployed on 59 regular halibut fishing
Meeting Document : WG-FSA-03/100
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Observation on the interactions between marine mammals and mid-water krill trawl
inner-trawl observation was made using an Underwater IP Camera, while sea surface observation was ...
Meeting Document : WG-FSA-2019/60 : Автор(ы): Y. Ying, G. Fan, X. Zhao, J. Zhang, X. Wang and J. Zhu
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Improvements to the multiple-frequency method for in situ target strength measurements
controlled test tank experiments using 38 and 120 kHz split-beam transducers and a 200 kHz single-beam ... experimental results indicate that such careful application of the multiple-frequency TS method can reject 100 ...
Meeting Document : WG-EMM-99/38 : Автор(ы): D.A. Demer (USA) and M.A. Soule (South Africa)
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Finfish distribution and abundance in Subareas 48.1 and 48.2, 2016–2018. Research proposal for the second year
of Elephant Island and north of South Orkney Islands, between 100 and 500 m of depth (Depth strata ... : 101-200 m, 201-260 m; 261-320 m, 320-380 m, 381-440, and 441-500 m). The sampling area was divided in ...
Meeting Document : WG-FSA-16/31 : Автор(ы): Delegation of Chile
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RAPID WARMING OF THE OCEAN AROUND SOUTH GEORGIA,SOUTHERN OCEAN, DURING THE 20TH CENTURY: FORCINGS, CHARACTERISTICS AND IMPLICATIONS FOR LOWER TROPHIC LEVELS
the water column. Warming diminished below 100 m and approached zero at 200 m. Thus the long-term ... -year period, a mean increase of ~0.9°C in January and ~2.3°C in August was evident in the top 100 m of ...
Meeting Document : WG-EMM-08/P03 : Автор(ы): M.J. Whitehouse, M.P. Meredith, P. Rothery, A. Atkinson, P. Ward and R.E. Korb
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An updated descriptive analysis of the toothfish (Dissostichus spp.) tagging programme in Subareas 88.1 and 88.2 up to 2005/06
release data. Two fish tagged and recaptured in the fishery have moved over 200 km, but the majority (> ... ;80%) of Antarctic toothfish have moved less than 50 km. Sub adult fish (80–100 cm) have tended to ...
Meeting Document : WG-FSA-06/34 : Автор(ы): A. Dunn and S.M. Hanchet (New Zealand)
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