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Preliminary study on nesting Adélie penguins disturbance by unmanned aerial vehicles
Vigilance/anxiety Aggression 100 90 80 70 60 50 40 30 20 10 0 S ku a C om bu st io n ov er ... , for example weather or skua attacks. The best option is a 20–30 minute recording with the overflight around ... Department of Geoinformatics, Cartography and Remote Sensing Krakowskie Przedmieście 30, 00-927 Warsaw ... ; Goebel et al., 2015). The rapidly growing use of UAVs in ecological research and monitoring is raising ... Abstract / Description: The importance of unmanned aerial vehicles (UAVs) in remote sensing is rapidly ... growing. However, knowledge about their potential impact on wildlife is scant, especially in Antarctica ... , where they are a new tool used in ecological research and monitoring. In this preliminary study ... potential effects of wildlife disturbance by fixed-wing UAVs are investigated. In austral summer 2014/15 ...
Science Journal Paper : CCAMLR Science, Volume 23 (CCAMLR Science, Volume 23) : 1–16 : Author(s): Korczak-Abshire, M., A. Kidawa, A. Zmarz, R. Storvold, S.R. Karlsen, M. Rodzewicz, K. Chwedorzewska and A. Znój
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Analysis of variability of krill size and fish by-catch in the Japanese krill fishery based on scientific observer data
Bayesian model. The models were composed of multistage cluster units (i.e. year, subarea, vessel, cruise ... estimated by the Markov chain Monte Carlo (MCMC) method hardly show difference among years, subareas ... and vessels. The potent interaction effect between year and subarea suggests large spatio–temporal variability ... units (i.e. year, subarea, vessel, cruise and haul) based on a state–space model, separating ... th (m m ) 60 50 40 30 20 (a) Adult size in Subarea 48.1 Overall trend Year E st im ... Year E st im at ed m ea n le ng th (m m ) 60 50 40 30 20 (c) Adult size in Subarea ... 40 30 20 (e) Year Area Y–A Ves. Cruise Haul Ind. Va ria ... . ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 0 10 20 30 40 50 ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 31–47 : Author(s): Okuda, T. and M. Kiyota
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The survivorship of rays discarded from the South Georgia longline fishery
- sideration. Normally only skates that are alive and undamaged are selected, with animals not being deemed ... hours, with observations being made at 6 and 12 hours to establish the condition of each animal ... in live animals and a pale pink or white in dead animals; (v) when removed from the tank, live animals ... and gill area in live animals. Common reactions observed in live skates: pectorals and tail curl under ... sea surface by the Chilean fishing vessel Isla Sofía in May and June 2003 during the toothfish fishing ... season in Subarea 48.3. Capture depth had a consistently significant influence on the mortality of skates ... ) and the sex of rays also had some small influence on survivorship. Discard survivorship was 75% in ... waters shallower than 1 300 m (i.e. 1 200–1 300 m), 46% in waters 1 300–1 500 m, and 24% in waters ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 155–164 : Author(s): Endicott, M. and D.J. Agnew
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Status of the krill stock around Elephant Island in 1991/92 and 1992/93
the austral summers of 1991/92 and 1992/93 are described and compared with information from previous years ... distributions and maturity stage composition reflected relatively good year class success from the 1990/91 ... spawning season but poor success from 1991/92. Year class success from these and other years appears ... the austral summers of 1991/92 and 1992/93 are described and compared with information from previous years ... of the previous year's spawn. Substantial proportions of juveniles and krill lengths <30 mm in 1992 (Figures ... ---20---30---40---50---60---70---80---90---~00 ST-3 3 - ST-5 - 0 ST-30 7 ST-4 9 ST-46 ST-61 ST ... (Dlink/Dmax)*100 Variable 1---10---20---30---40---50---60---70---80---90---100 (b) ST-1 - ST-2 ST-48 ... 20 25 30 35 40 45 50 55 6 0 Total Length (mm) Frequency % j 4 1 Frequency ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 7–33 : Author(s): Loeb, V. and V. Siegel
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Small scale krill surveys: simulations based on observed euphausiid distributions
0 0.0 0.1 20% change in mean density 30% 40% 50 ... propositions de modeles de campagnes d'evaluation. La simulation met en jeu un certain nombre de voies ... arperaU;Hl1 3B
30BaHO B u;eJI5IX MO,l{eJIHpOBaHH5I ... opraHH30BaHHbIX pa3pe30B, npOXO,l{5III\HX lIepe3 TpH pacnpe,l{eJIeHH5I, Ka:>K,l{Oe H3 CCAMLR Secretariat, 25 ... aggregations. Calculations based on the power of surveys to reliably detect changes in mean density indicate ... be required to detect changes of 40% in the mean if CVs are as high as those obtained in the ... Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 245–256 : Author(s): Agnew, D.J. and S. Nicol
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Preliminary results of investigations of the Federal Republic of Germany on Notothenia rossii marmorata (Fischer, 1885) in January/February 1985
to rebuild the stock around South Georgia might be successful. Although reported catches in recent years have ... years have been low, N. rossii around South Georgia is still largely affected by the fishery. Stock size ... around South Georgia might be successful. Although reported catches in recent years have been low ... B HHBape-¢eBpane 1985 r. c HHC "BanbTep XepBHr" Cb8MKa ,IJ;OHHhlM TpanoM HCilOJib- 30Banacn ,IJ;JIH cOopa ... with a sr.1211 meshed liner of 20 mm (figs. 1,2). Total length of the spcci.mcn.s wDi:; 1nec1sured to Ll1e ... to Lhe east and southeast of the island where yields varied beLween 2 and 5100 kg/30 min. 'Ihe besL ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/2 (Selected Scientific Papers, SC-CAMLR-SSP/2) : 33-57 : Author(s): Kock, K.-H.
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The Soviet krill fishery in the Atlantic Sector of the Antarctic from 1977 to 1991: fishing effort distribution and interannual patterns
0 0 0 0 0 0 0 91 7 1. 8 R T M S 92 86 30 4 39 6 20 6 20 2 11 6 89 31 7 49 9 48 4 99 ... fi shery conditions from 1986 to 1990. 0 5 10 15 20 25 30 ... 3–4 4–5 5–6 6–7 7–8 8–9 10–11 11–12 12–13 13–14 14–15 15–16 Krill catches (tonnes/hour) Fr eq ue nc y (% ) 30 25 20 ... in the 15-year period from January 1977 to December 1991, the period during which the Soviet krill fi ... Paper Title: The Soviet krill fishery in the Atlantic Sector of the Antarctic from 1977 to 1991 ... fishery in the Atlantic Sector of the Antarctic from 1977 to 1992 are discussed. The total fishing effort ... from 1977 to 1991 was 50 086 vessel-days fished, in Subareas 48.3 (45% of the total for the period ... ), 48.2 (36%) and 48.1 (19%). Three distinct patterns in the distribution of monthly fishing effort ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 1–13 : Author(s): Litvinov, F.F., V.A. Sushin, G.A. Chernega and O.A. Berezhinsky
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Preliminary model of krill fishery behaviour in Subarea 48.1
and Elephant Islands in alternate years would result in an average yearly catch similar to that at present ... during alternate years. File: 06agnew-marin.pdf ... and Elephant Islands in alternate years would result in an average yearly catch similar to that at present ... during alternate years. ... and Elephant Islands in alternate years would result in an average yearly catch similar to that at present ... predators during alternate years. Resume Description d'un modele simple du comportement de la pecherie ... ~ ~ H B M H ~ C T O H H 3JIeaaHT B YepeAyWqHeCR TOAbI, IIpMBeAeT K CpeAHeMy roAoBOMy BbIn ... OBy, K O T O P ~ I ~ ~ 6 y ~ e T aHanormeH cospeMeHHoMy. T ~ M He MeHee, B TOM cnyqae B TerIeHMe YepeAymwHxcrr neT BbIn ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 71–79 : Author(s): Agnew, D.J. and V.H. Marín
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Notes on the use of virtual population analysis for stock assessment of the mackerel icefish, Champsocephalus gunnari (Lönnberg, 1906) in Subarea 48.3 for the 1990/91 and 1991/92 seasons
techniques, from 1991 back to 1977. The predicted age structure, dominated in recent years by the 1987 year ... -class (1 year olds in 1988), was quite robust, despite the use of various combinations of survey ... proportion of 5 year olds, which was not observed during the survey on Falklands Protector in January 1992 ... . Breakdown in the credibility of the VPA results in most recent years is attributed to the invalid assumption ... . The predicted age structure, dominated in recent years by the 1987 year-class (1 year olds in 1988), was quite ... to the VPA the population in 1991/92 was composed of a large proportion of 5 year olds, which ... of the VPA results in most recent years is attributed to the invalid assumption of constant ... Champsocephalus gunnari B IIo~paHoHe 48.3 C MCnOJIb30BaHMeM VPA, 6bIJIM npe~npMHSlTbI nonbITKM ycoBepmeHcTBoBaTb ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 49–79 : Author(s): Parkes, G.
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A declining trend in the abundance of Notothenia rossii marmorata and Notothenia gibberifrons observed in fjords in two sites in the South Shetland Islands
de Mayo I., over a period of eight years from 1983 to 1990 and in waters around Half-Moon I., Moon ... by this method did not utilize a consistent amount of effort between years, the analysis made use of standardized ... , King George/25 de Mayo I., over a period of eight years from 1983 to 1990 and in waters around Half ... sampling by this method did not utilize a consistent amount of effort between years, the analysis made use ... of eight years from 1983 to 1990 and in waters around Half-Moon 1., Moon Bay, in 1989. The analysis ... a consistent amount of effort between years, the analysis made use of standardized catch data by expressing ... illeT JIaH~CKHX OCTPOBOB (IIo~patioH 48.1). llCnOJIb30BaHHbIe B HaCTOSlII(eM HCCJIe~OBaHHH ~aHHbIe ... npOMbICJIOBOe YCHJIHe H3MeHSleTCSI H3 ro~a B ro~, npH aHaJIH3e HCnOJIb30BaJIHCb CTaH~apTH3HpOBaHHbIe ~aHHbIe ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 263–274 : Author(s): Barrera-Oro, E. and E. Marschoff