Résultats de la recherche
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Analysis of the sea-ice concentration (SIC) in Subarea 48.6, research blocks 2, 3, 4 and 5 with sea-surface temperature (SST) and statistical models
, where the limit of navigability for fishing vessels is set at 20 % SIC, was calculated. It should become ... , the SIC in 2019 was the highest for the last 4 years (2016-2019). For research block 5, the SIC in ...
Meeting Document : WG-SAM-2019/15 : Auteur(s): T. Namba, R. Sarralde, H. Pehlke, K. Teschke, T. Brey, S. Hain, T. Ichii, T. Okuda, S. Somhlaba and J. Pompert
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A potential feedback approach to ecosystem-based management: Model Predictive Control of the Antarctic krill fishery
- ment derive from control theory (Cunningham and CCAMLR Science, Vol. 20 (2013): 119–137 119 A ... feedback loop have a nominal time‐step of one year. The controlled system (here the operating model ... process can be controlled through weight- ing. The area‐specific catches for the first year in the ... simulations. Parameter Value MPC prediction horizon N = 20 Input bounds Umin = [400 400]T Umax = [1 000 ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 119–137 : Auteur(s): Hill, S.L. and M. Cannon
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Krill (Euphausia superba) distribution in relation to water movement and phytoplankton distribution off the northern South Shetland Islands
deployed at a level of 30 m from the surface because at this level krill concentrations are most frequently ... levels (0, 10, 20, 30, 40, 50, 75, 100, 125, 150 and 200 m). Chl-a concentration was determined by ... circulation was studied with satellite-tracked buoys equipped with curtain drogues deployed at a level of 30 ... bouees suivies par satellite et equipees d'ancres de cape, deployees a 30 m de profondeur, niveau ... Ha ypOBHe 30 MeTpoB OT nOBepxHocTH, nOCKOJIbKY lIaIl\e Bcero KOHl.\eHTpal.\HH KPHJI5.I ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 123–140 : Auteur(s): Ichii, T., H. Ishii and M. Naganobu
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Long-term observations from Antarctica demonstrate that mismatched scales of fisheries management and predator–prey interaction lead to erroneous conclusions about precaution
hierarchical model and 30+ years of monitoring data, we show that expected penguin performance was reduced when ...
Meeting Document : WG-EMM-2019/11 : Auteur(s): G.M. Watters, J.T. Hinke and C.S. Reiss
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e-sc-iii-a6.pdf
... islands. 20. There are fluctuations in fish distribution and density related to hydrological conditions ... and weather patterns which are seasonal and can vary from year to year. Coastal regions serve as ... be presented at the next Scientific Committee meeting. 30. It was reported that neither Chilean nor ... general discussion of the particular difficulties, raised in the UK paper, of stock assessments of
application/pdf attached to:WG-DCH-84
Meeting Report : WG-DCH-84
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Possible effects of different levels of krill fishing on predators – some initial modelling attempts
fluctuations together with preliminary information on adult survival and breeding success patterns for certain ... variability, the figure actually used was the average of the medians over the last 50 years of the 200-year ... (first year) 'survival rate' incorporates the effects of (changing) pregnancy rate as well as the ... above (i.e., the '1 + biomass ' ) a t t he 'start' of t h e year (i.e., 1 November, see ... reproduction at the start of year y; K, is the number of such female predators at deterministic ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 79–97 : Auteur(s): Butterworth, D.S. and R.B. Thomson
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SC-CAMLR-XXXIII
): Monday, 20 October 2014 to Friday, 24 October 2014 Chair / Convener: Dr Christopher Jones (United States ... of America) Support: Dr Keith Reid Submissions Due: Saturday, 20 September 2014 Friday, 5 September ... . 1 Review of the CCAMLR Scheme of International Scientific Observation (26 to 30 August 2013, CCAMLR ... , Assessments and Modelling (Punta Arenas, Chile, 30 June to 4 July 2014) SC-CAMLR-XXXIII/06 Report of the ...
Meeting
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Power analyses of CEMP indices for penguins at Admiralty Bay and fur seals at Cape Shirreff and Seal Island
trends over a period of 20 years may be feasible for most indices. Detecting trends in indices A8 and C2 ... values of transformed CEMP indices to breeding year are equal to zero when, in fact, these trends ... less than a 50:50 chance of detecting an actual trend over a period of 5 years. Nevertheless, detecting ...
Meeting Document : WG-EMM-03/52 : Auteur(s): G.M. Watters, R.P. Hewitt, W.Z. Trivelpiece and M.E. Goebel (USA)
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Selectivity of standard Polish commercial trawl codends on Antarctic fishing grounds
I I / B / / /: I I I I I ./e r-=- 20 30 Figure 5: Selectivity ogive for ... ..-_, __ ...,.--_,.--_...,.--__ 20 30 1.,0 50 [CM] I=\S+\ LENCHl Selection of bumphead notothenia on ... -.-_ .... 1 20 1 1 1 I 1 1 1 30 ':'0 50 Figure 7: Selectivity ogive for Antarctic icefish by ... 40 I J i 30 I 20 Figure 8: Selectivity ogives for Antarctic icefish on Antarctic fishing grounds ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 107-142 : Auteur(s): Zaucha, J.
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e-cc-xv-a4.pdf
... originally adopted for a three-year trial period should be continued in 1997 and subsequent years. 13. The ... funds towards the removal costs. Although the Secretariat has not yet had a full year in its new ... for 1997 as presented in Appendix II to this report. 20. The Committee recommended that the ... shall be calculated as the average catch over a three-year reporting period, ending at least 12 months
application/pdf attached to:SCAF-96
Meeting Report : SCAF-96