Resultados de la búsqueda
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e-sc-xvi-a4.pdf
... . 3.18 Trends over the last 20 years detected from the results of net surveys conducted in Subarea 48.1 ... Activities 1.8 The Subgroup on Statistics met in La Jolla, USA, from 14 to 18 July 1997 and its report is ... (60 546 tonnes mostly in Subarea 48.1), Poland (20 610 tonnes mostly in Subarea 48.1) and Ukraine (20 ... fisheries, and (iii) human consumption. The demand for aquaculture food has decreased in recent years, and
application/pdf attached to:WG-EMM-97
Meeting Report : WG-EMM-97
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e-sc-xxxiii-a6.pdf
... between years? 2. Krill – (i) What is the trend in the krill population? (ii) What are the dynamics ... . All notifications met the data requirements outlined in CM 21-03. The Working Group agreed that the ... from 20-litre samples of krill product taken each week. The green weight of krill caught (Mgw, in kg ... identified a shift in CPUE regime from 2006 onwards compared with the previous years. These papers provided
application/pdf attached to:WG-EMM-14
Meeting Report : WG-EMM-14
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Possible effects of different levels of fishing on krill on predators - some initial modelling attempts
Meeting of the CCAMLR's WG-Kril1 and WG-CEMP in 1992 to address this issue. First. estimates are made ... dynamics model incorporating recruitment fluctuations together with information on adult survival and ... developed, in which krill abundance fluctuations impact the predator population, but not vice versa ... . Computations based on this model indicate that variability in the annual recruitment of krill results in ...
Meeting Document : WG-KRILL-93/43 : Autor(es): D.S. Butterworth and R.B. Thomson (South Africa)
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e-sc-xxxv-a06.pdf
... December 2014 to 30 November 2015), 12 vessels fished in Subareas 48.1, 48.2 and 48.3 and the total catch ... . The authors first evaluated the level of observation (in days) for the past five years in the krill ... Group advised the Scientific Committee that an analysis of the observer coverage in the last five years ... indices were used in other fisheries and report back to the Working Group next year. http
application/pdf attached to:WG-EMM-16
Meeting Report : WG-EMM-16
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e-sc-xvii.pdf
... for the Conservation of Antarctic Marine Living Resources held in Hobart, Australia, from 26 to 30 ... Resources met under the Chairmanship of Dr D. Miller (South Africa) from 26 to 30 October 1998 at the Wrest ... activities would be similar to those in the 1997/98 season (i.e. about 60 000 tonnes, 20 000 tonnes and 2 000 ... observed drop in catches between the two years could not be attributed to any particular cause, although it
application/pdf attached to:SC-CAMLR-XVII
Meeting Report : SC-CAMLR-XVII
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Using ecosystem monitoring data to detect impacts
an observed value in an unimpacted system, or (ii) the frequency of values below a fixed reference ... point. The second approach allows inference criteria based on changes in this frequency rather than by ... decline in Antarctic fur seal (Arctocephalus gazella) pup production at South Georgia from the early 1990s ... within a few years of its onset, but a fixed reference point method could have provided this sustained ... if at ≤ acrit in two or more years of a four-year refer- ence period. Summary of methods: anomalies ... : Method 4 with inference based on changes in frequency: the observed proportion of years in an n-year ... baseline PDF were then used to test for impacts in 20 more obser- vations drawn from the baseline period ... once in t years can be calculated using the binomial density function: P(at) = t.p.(1 – p)t (1 ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 197–212 : Autor(es): Hill, S.L., J. Forcada, P.N. Trathan and C.M. Waluda
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A simple approach for calculating the potential yield of krill from biomass survey results
median pre-exploitation level over a 20 year period of harvesting should equal 10%. The value of, λ ... results Abstract / Description: Estimates are calculated for the parameter λ in the yield equation Y = λ ... MB 0 for a krill fishery in which both the fishery and krill growth are seasonal. The criterion used ... for the calculations is that the probability that the krill spawning biomass drops below 20% of its ... the following 20 years, is that from a single pre-exploitation biomass survey. No account is taken of ... krill of length 20 mm and above (D. Miller, pers. comm.), so that the lengths listed in Table 1 suggest ... -exploitation level over a 20 year period of harvesting should equal 10%. The value of 'A, depends strongly on ... size drops below 20% of its average value prior to exploitation, over a 20 year period of harvesting ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 207–217 : Autor(es): Butterworth, D.S., A.E. Punt and M. Basson
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e-sc-xxv-a5.pdf
... OF THE MEETING 1.1 The meeting of WG-FSA was held in Hobart, Australia, from 9 to 20 October 2006 ... branch lines, while the hooks in the Russian system were bunched together on the branch lines. 3.16 ... was the same method as used in previous years. This method used information on the number of vessels ... years, due to the change in sampling methodology, the data for 2005/06 were more representative of the
application/pdf attached to:WG-FSA-06
Meeting Report : WG-FSA-06
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CCAMLR-XXXIV
Waters Delegation of the Russian Federation CCAMLR-XXXIV/BG/30 Designation of an MPA in East Antarctica ... , 19 October 2015 to Friday, 30 October 2015 Chair / Convener: Mr Dmitry Gonchar (Russian Federation ... CCAMLR’s financial and conservation objectives in relation to the krill fishery Delegation of the United ... –2018) and Implementation Report for the Staffing and Salary Strategy Executive Secretary CCAMLR-XXXIV ...
Meeting
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On the power to detect changes using the standard methods for monitoring parameters of predatory species
trip duration (C2.0). The other Standard Methods are not evaluated because the power analysis in the ... considered here are insufficient for conducting power analyses (penguin arrival weight A1.1, trend in penguin ... sample sizes for detecting changes of 10%, 20% and 30% of the mean values are shown in Table 2. No ... to distinguish between the mean values of parameters obtained in two or more years. We may also ... ) to compute the requisite sample sizes for detecting changes of 10%, 20% and 30% of the mean value ... in the two years was 24.3 hr. The mean duration of trips made by 47 pairs of chinstrap penguins was ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 377–397 : Autor(es): Boveng, P. and J.L. Bengtson