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A statistical method for estimating the level of IUU fishing: application to CCAMLR Subarea 48.3
Paper Title: A statistical method for estimating the level of IUU fishing: application to CCAMLR ... -documented fisheries protection vessel (FPV) cruise data. The method takes explicit account of both ‘seen ... there must have been at least one encounter with an FPV in a year; no encounters in a year are ... interpreted as zero IUU fishing. For each IUU incident detected by the FPV, a theoretical maximum time over ... FPV desde 2001 hasta 2004, no se ha detectado ninguna actividad INDNR, dando como resultado capturas ... in 1999 and 2000 no further incidents were recorded (Table 1). The method used here requires there ... was no increased probability of detection of an IUU vessel with increased overlap between the FPV ... than from licensed vessels, which would tend to lower the encounter rate. Unfortunately there is no ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 119–141 : Автор(ы): Agnew, D.J. and G.P. Kirkwood
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A composite recruitment index to describe interannual changes in the population structure of Antarctic krill at South Georgia
Paper Title: A composite recruitment index to describe interannual changes in the population ... substantial differences, due in part to bias arising from a large number of krill in just one of the station ... net hauls. Therefore, when the number of station net hauls is limited, bias is likely to be reduced if ... target net haul data can be included by using the composite recruitment index. This index is used to ... commercial fishery (Kawaguchi et al., 1998). However, to date there has been no information on the year-to ... spawning year, the status of 1993194 is less certain, because there is no datum for the RI estimation ... class structure observed in the Antarctic Peninsula and South Georgia. There is no recruitment data ... RECRUITMENT INDEX TO DESCRIBE INTERANNUAL CHANGES IN THE POPULATION STRUCTURE OF ANTARCTIC KRILL AT SOUTH ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 71–84 : Автор(ы): Watkins, J.L
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Krill population biology during the 1991 Chilean Antarctic krill fishery
them had a TL larger than 45 mm. The size frequency distribution showed no significant differences ... Paper Title: Krill population biology during the 1991 Chilean Antarctic krill fishery Abstract ... during krill fishing operations around the South Shetland Islands on board the Chilean factory vessel ... . The fishing ground was divided into two areas: Area A, north of the South Shetland Islands; and Area B ... distribution showed no significant differences between the three time periods. However, when the sex ... distribution of catches taken during the three different time periods showed no significant differences among ... WG-KRILL-92/33 KRILL POPULATION BIOLOGY DURING THE 1991 ... fishing operations around the South Shetland Islands on board the Chilean factory vessel Kirishima ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 223–235 : Автор(ы): Mujica R., A., E. Acuña S. and A. Rivera O.
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The use of analysis of penguin stomach contents in simultaneous study of prey and predator parameters
Paper Title: The use of analysis of penguin stomach contents in simultaneous study of prey and ... sensitive to the statistical assumptions made during the analysis of data. The nested ANOVA method is ... proposed as being the correct approach for analysis because lack of independence between krill specimens ... found in the stomach of a given penguin prevents the pooling of krill lengths from different samples ... WG-CEMP-89/16 THE USE OF ANALYSIS OF PENGUIN STOMACH ... Size selectivity of krill by penguins is shown to be highly sensitive to the statistical assumptions ... made during the analysis of data. The nested ANOVA method is proposed as being the correct approach ... for analysis because lack of independence between krill specimens found in the stomach of a given ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 367–375 : Автор(ы): Marschoff, E. and B. González
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Intra-annual variability in the density of Antarctic krill (Euphausia superba) at South Georgia, 2002–2005: within-year variation provides a new framework for interpreting previous ‘annual’ estimates of krill density
Paper Title: Intra-annual variability in the density of Antarctic krill (Euphausia superba) at ... profilers (300 kHz) and echo sounders (125 kHz) were deployed on moorings on- and off-shelf to the northwest ... = 64.2). A sinusoidal regression model (period = 52 weeks) with time as the independent variable ... explained 64% of the observed week-to-week variation. Estimates of krill density from moored instruments ... 2003 due to the presence of large icebergs at the site, and no data were obtained between 29 April ... -minute intervals. No thresholds were applied to the data prior to echo integration. Finally, all unfi ... . 14 (2007): 27–41 27 INTRA-ANNUAL VARIABILITY IN THE DENSITY OF ANTARCTIC KRILL (EUPHAUSIA SUPERBA ... ) and echo sounders (125 kHz) were deployed on moorings on- and off-shelf to the northwest of South ...
Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 27–41 : Автор(ы): Saunders, R.A., A.S. Brierley, J.L. Watkins, K. Reid, E.J. Murphy, P. Enderlein and D.G. Bone
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An impact assessment framework for bottom fishing methods in the CAMLR Convention Area
Paper Title: An impact assessment framework for bottom fishing methods in the CAMLR Convention ... Area Abstract / Description: This paper presents a methodological framework to estimate the likely ... cumulative impact on fragile benthic organisms from bottom fishing activity. The approach has been designed ... preliminary assessment of bottom fishing impacts for the 2008/09 toothfish longline fishery. This paper ... impacts themselves on the assump- tion that impact reduction is desirable no matter what the actual shape ... have been no peer-reviewed studies based on actual observations of the effects of bottom longline ... ). Note that there is no assumption at this stage as to the extent or severity of the actual impact ... submerged floats connecting two separate lines (no impact additional to that of the standard set ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 195–210 : Автор(ы): Sharp, B.R., S.J. Parker and N. Smith
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Modelling catch and effort data using generalised linear models, the Tweedie distribution, random vessel effects and random stratum-by-year effects
Paper Title: Modelling catch and effort data using generalised linear models, the Tweedie ... distribution, random vessel effects and random stratum-by-year effects Abstract / Description: The current ... CCAMLR areas is to model the haul-by-haul ratios of catch to effort as the response variable in a ... standardised CPUE estimates and their precision can be obtained from the ‘fishing year’ parameter estimates ... (2004): 59–80 59 MODELLING CATCH AND EFFORT DATA USING GENERALISED LINEAR MODELS, THE TWEEDIE ... Division Channel Highway, Kingston 7050 Tasmania, Australia Email – steve.candy@aad.gov.au Abstract The ... eleginoides) for CCAMLR areas is to model the haul-by-haul ratios of catch to effort as the response variable ... time series of standardised CPUE estimates and their precision can be obtained from the ‘fi shing year ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 59–80 : Автор(ы): Candy, S.G
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Biological parameters for icefish (Chionobathyscus dewitti) in the Ross Sea, Antarctica
Paper Title: Biological parameters for icefish (Chionobathyscus dewitti) in the Ross Sea ... during the 2005/06 fishing season. These observers were placed on board three longline vessels targeting ... Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea (CCAMLR Subareas 88.1 and 88.2). Biological data ... , meristics, reproductive biology, diet and age estimation. All of the icefish sampled were identified as ... identificados como Chionobathyscus dewitti, y no hubo diferencias significativas en la proporción de sexos. Los ... reader to over-count relative to the first reader. Despite this finding, there was no significant sys ... the summer months. They observed spent females in early January and no females with maturing gonads ... BIOLOGICAL PARAMETERS FOR ICEFISH (CHIONOBATHYSCUS DEWITTI) IN THE ROSS SEA, ANTARCTICA C.P. Sutton ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 139–165 : Автор(ы): Sutton, C.P., M.J. Manning, D.W. Stevens and P.M. Marriott
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Problems of population age structure determination of Euphausia superba Dana using an example from the Antarctic Peninsula area and adjacent waters
an example from the Antarctic Peninsula area and adjacent waters Abstract / Description: This paper ... examines the size structure of populations of E. superba in relation to their habitat, on the basis of an ... analysis of data collected by the author during the 1981 season in the region of the Antarctic Peninsula ... and the South Shetland Islands, as well as data collected by other researchers during FIBEX and data ... STRUCTURE DETERMINATION OF EUPHAUSIA SUPERBA DANA USING AN EXAMPLE FROM THE ANTARCTIC PENINSULA AREA AND ... ADJACENT WATERS V.A.Spiridonov (U.S.S.R.) Abstract This paper examines the size structure of ... populations of E. superba in relation to their habitat, on the basis of an analysis of data collected by the ... author during the 1981 season in the region of the Antarctic Peninsula and the South Shetland Islands ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 227-270 : Автор(ы): Spiridonov, V.A.
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Long-term trends in the foraging patterns of female Antarctic fur seals at South Georgia
Paper Title: Long-term trends in the foraging patterns of female Antarctic fur seals at South ... Georgia Abstract / Description: The number of feeding trips to sea made by female Antarctic fur seals ... during lactation may reflect the relative availability of local prey resources. Experimental work ... utilizing tetracycline-marked teeth confirmed that the feeding trip/suckling cycles of females are reflected ... -TERM TRENDS IN THE FORAGING PATTERNS OF FEMALE ANTARCTIC FUR SE!\LS AT SOUTH GEORGIA* 1 J.L ... . Bengtson (USA) Abstract The number of feeding trips to sea made by female Antarctic fur seals during ... lactation may reflect the relative availability of local prey resources. Experimental work utilizing ... tetracycline-marked teeth confirmed that the feeding trip/suckling cycles of females are reflected as ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 441-443 : Автор(ы): Bengtson, J.L.
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